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FILE NAME Kerr KR DATE 1946 DOC KR101 DOCUMENT DESCRIPTION Industry Sales Catalogue on a oe i ny oh owe " - Ey i i . . s, tow ) . wo iy , oN . woh { mY y ' ' . . s ON a) <- a _ KERR a MANUFACTURING COMPANY 4 ; . ' KERR DENTAL MANUFACTURING CO . ewo URERS OF eat | Pa KERR U.S. REG . - . | . ae 7 oo ee . 4 ' t os he. -a ' ; asthe . aoe $n ~ ' e Poet er 2 os ne , oe vs - te fo -" DETROIT ~ JUNE 1946 MICH a wan't reSea he "es - " . ven . t ae he . aD etal: lee! noo oo rh t, e \s | PLAINTIFF'S EXHIBIT KER ESTABLISHED EIGHTEEN NINETY KERR MANUFACTURING COMPANY Formerly Kerr Dental Manufacturing Company Patentees and Manufacturers of Kerr Impression Compounds and Materials Kerr Waxes Kerr Cristobalite Investments Kerr Casting Machines Kerr Casting Equipment Kerr Snow White Plasters Kerr Stones Kerr Pulp Canal Instruments Kerr Mouth Mirrors Equipment for Greene Method of Impression Taking and other Kerr Dental Instruments and Preparations Camposite Grouping of Kerr Mfg Co. Facturies KERR MANUFACTURING CO 6081-6093 Twelfth Street JUNE 1946 Detroit 8 Michigan U.S.A. No. 58 } INDEX Article Page Accelerator Plaster Asbestos Strip 20 La 23 Book Pulpless Tooth Problems 37 Book on Plate Work Brush Julay Panting 23 Casting Machines 24 25 26 Compound Black Impression Tray 7 Compound Heater Thermostatic 8 Compound Impressions + Compound Impression Cakes 5 7 Compound Impression Sticks 6 7 Compound Fimpression Cones 5 Compound Impression Wafers 5 Compound Lifter 11 Control Powder 21 Cristobalite Investments Inlay and Model 20 Crystoles Crystoles Regular and Formula 102 Article Mirrors Mouth Mixer for Investment Paste Abrasive Paste Impression Paste Marking Plasters Pluggers Pulp Canal Probes Pulp Canal Reamers Pulp Canal Scale Automatic Sealer Pulp Canal Separating Fluid for Spatulas Laboratory Stainless Steel Plaster Spatula Impression Paste Spreaders Gutta Percha Sprue Gun Wax Rods Page 32 21 30 10 7 28 39 40 35 36 21 . 33 30 = = - Debubblzer Sorice Denture 23 2 Denture Sortec 10 Sterilizers Alcohol za8 Diolite 23 Stone Rapid za8 Ejector Hydro Super Sep Separating Fluid za8 27 Files Pulp Canal Flasks Duplicating we. Forex Flashing Investment R Descloper and Fixer Furnace Electric Inlay Germiletol Glossy Glaz 34 35 25 28 11 20 . 27 30 Trays Muminum Impression 13 14 15 Trays Greene Kerr Removable Handle 12.13 Trays Universal Bridge . Chlor 31 Trimmers AcryliAcryclic 33 acumatic 22 Glar Rapid Model . 30 Vibrator Flo 23 Handles Cone Socket and Plan Stem . . 3 Heater Compound Thermostatic Thermostatic OS Holders Broach X Hydro Colloid ^^ Colloid Cartridges . Hydro Saliva Ejector .27 Wax Impression Waxes Inlay Blue Was Korecta o., and Ivory Wax Plastic toa Was Plastic Model Mounting Wax Rods Green Casting Wax Rods Sprue Gna 19 16 19 19 19 18 _ 17 Empression Plastic 20 Was Setting Up 16 . Instrument Case Pulp Canal Investments Cristobalite Lifter Compound . Lubricant Dental . . Lubricant Microfilm 20 Was Shapes Ready Made 18 20 Was Sheets Casting Pink and Green 17 Wax Sticky 17 = Wax Undercut took 19 23 Wax Utility Sheet and Stick Form 18 Wax Wax l'p 18 Marking Paste . 7 Wires Meisurement 38 Metal Soft Sheet Microfilm Lubricant . 11 ray Solutions 9 R Developer and Fixer KERR KERI Cakes venient taking SONS O partin ties Twe Compor prophec The patisfec Keri reasons way kn This The the trin the nu conditio This softens cold wa able mu valve KERR backs addingt impressimpriessi Bothrect malax owe Page 23 21 35 35 REGLE REGLE REGLE 17 REGLE 4 und A om 13 14 15 12 -- Hing J 10 and Green 14 nick Form 18 18 KERR ACTURING CO Page Three KERR PERFECTION IMPRESSION COMPOUND CAKES Guaranteed to meet the tentative specifications No. 3 of the American Dental Association for Impression Compound Cakes of covenient size for taking impres- sions of full or partial den ties ae 7 KERKRERR Twenty years ago we prophesied that Compound would eventually supplant plaster in prophecy has come true The use of our compound is gaining adherents satisfied that it is everything we claim Kerr Perfection Impression Prosthetic Dentistry and our every day who are thoroughly Kerr Perfection Impression Compound is superior reasons An impression once taken in plaster cannot be way known to successfully work plaster to plaster for changed There many is no This compound can be heated changed and adjusted to any conditions The great advantage in using Kerr Perfection Impression Compound the trimming of impressions is accomplished not with a knife but by the the muscles of the mouth The impression thus conforms faithfully to conditions under which the plate will be worn is that use of actual This compound softens in clear water at temperature of 132 degrees F. also softens with dry heat It will not warp or creep hardens rapidly when cooled with cold water and when hard is inflexible When soft it conforms freely to the movable muscles of the mouth enabling them to trim the impression and yet press with valve tightness giving relief without leak KERR PERFECTION IMPRESSION COMPOUND Guaranteed to meet the tentative specifications No. 3 of the American Dental Association for Impression Compound STICKS = Sticks for tracing or adding to the edge of a impression and for the indirect method of cast mlay work KERR Page Four KERR MANUFACTURING CO KERR PERFECTION IMPRESSION COMPOUND KFRR An impression made with Kerr Perfection Impression Compound Note clear sharp impression Thumb Prints These two thumb = prints illustrate clearly the perfect recording qualities of this Compound Every line shows distinctly Kerr Perfection Impression Compound does not creep or warp This impression illustrates the correct method of impression taking with Kerr Perfection Impression Compound and is introduced here to show the trimming which is possible when this compound is used K IMPF Cones ! for casi Made i sorted The inspressi pounut Rents a Tins W. Ore SCHEL H ever bei bc Unique Yours OL RING CO IND king with show the KERR MANUFACTURING MANUFACTURING CO Page Five KERR PERFECTION IMPRESSION COMPOUND WAFERS Water form is more convement when a small piece is wanted or for refitting plates KERR PERFECTION IMPRESSION COMPOUND CONES Cones for taking impressions of cavities for cast inlays by the indirect method Made in small medium large and as- sorted KERR GREY IMPRESSION COMPOUND Working temperature 128 F. to 130 F. Supplicil in Cake and Stick Form GREENE BROTHERS PRINTED COURSE IN PLATE WORK Copyrighed July 12 1910 The first book on new and Advance Methods in impressions pound also using Kerr Articulation Perfection Occlusion Impression ComRootless Dentures Refits and Renewals This printed course of 220 pages by W. Greene offers more actual help and sense information about practical plate the late Dr. J. more common- work than has ever before been presented in book form A book written from a practical standpoint is full of unique methods and useful information gathered vears of successful experience as a plate worker from Page Six KERR MANUFACTURING CO KERR WHITE IMPRESSION COMPOUND CAKES Guaranteed to Meet the Tentative Specifications No 3 of the American Dental Association for impression Compound Kerr White Impression Compound has a working temperature of 132 F. to 135 F. which is about the same as the regular Kerr Perfection Impression Compound and has similar working qualities The attractive white color in connec tion with its smooth working qualities makes it a desirable material to use KERR WHITE IMPRESSION COMPOUND STICKS Kerr White Impression Compound Tracing Sticks are of the same material as the regular White Cakes and have the same working qualities KERR IMPRESSION COMPOUND NO 2 Guaranteed to Meet the Tentative Specifications No. 3 of the American Dental Association for Impression Compound No. 2 Soft Green Impression Compound Cakes and Sticks has a working temperature of 122 F. to 126 F. which is a lower heat than the regular Kerr Perfection Impression Compound but has similar working qualities Convenient where Cakes . a lower working temperature is necessary and will harden rapidly in the month and chill below 80 F. Will not become sticky at working temperatures \ 4 \ vip wit Sticks 1 racing Sticks KERR K Guaranteed Kerr a work degrees the , impressi tracing the indu ' a ae .. ry v bie , wl a ? Sma nique P A postpo.sdt.adamm the impr URING CO AKES . pression Compound hite Impresbound has a mperature of to 135 .. out the same Kerr Har Kerr PPeer- r- Impression d and has orking qualiattractive in connecits smooth alties makes able material . KERR MANUFACTURICNGO Page Seven KERR BLACK IMPRESSION TRAY COMPOUND Quaraniced to Meel the Tenialiva Specifications No. 3 of the Ameriram Dental Association for Impression Compound Kerr Black Impression Tray Compound has a working temperature of approximately 135 degrees and has similar working qualities as the regular Kerr Perfection Impression Compound It used primarily for compound impression trays Supplied in stick formn for tracing adding to an impression and also tor the indirect method of cast mlay work err ad Sticks Cakes KERR COLLOID Impression Compeune a Impression Sticks has a 0.122 0.122 or. to wer heat than . ction Impreshas similar ven where This extremely elastic volume constant impression material was developed through careful research employing the most modern testing machines and chemical methods It is easy to use and its rapid cooling properties eliminate much of former bothersome chilling It enables you to take impressions of seemingly impossible under- cuts with ease It contains no bothersome fibers The amazing elasticity of Kerr colloid makes impression taking a pleasure KERR COLLOID CARTRIDGES Small cartridges for use with hypodermic syringe for fixed bridge technique Put up in jars holding 25 cartridges size 24 long x 14 diameter OE Nyaa ing Sticks KERR MARKING PASTE A transfer medium used to indicate high spots in dentures and for marking dam areas also for indicating any pressure areas either in finished denture or the impression Easily applied Page Eight KERR MANUFACTURING CO THE KERR COMPOUND HEATER Every impression material is formulated to give best results at certain precise temperature When this temperature is uniform throughout the material precision results are virtually sure Impression materials that are overheated become sticky or lose body and cause discomfort for the patiem Impression materials that are underheated fail to register major and minor detail SPECIFICATIONS DIMENSIONS 512 inches high by inches wide DESIGN Original by Kerr Engineering Dept. Different and better OUTER SHELL Composition current Enameled black crinkle finish Holds heat saves INNER PAN 414 inches deep by 5inches diameter of water Fits snugly into outer shelf Enameled Holds 2 qts HEATING ELEMENT Immersion entire body of water umformity and temperature of water type Integral with handle Placed to heat rapidly Thermostat directly controlled by THERMOSTATIC CONTROL 100 to 212 Accurate and positive at any setting from PILOT LIGHT Shows red in top of handle whenever current is on THERMOMETER Included for checking only nifying lens for easy reading Mercury type armored mag- CURRENT CONSUMPTION on for only two minutes To keep water at 130 for full hour current is PLATFORM Reversible to accommodate Compound and Hydro Colloid at most efficient points of submergence : LIFTER comfort Included Permits compound to be submerged or lifted without dis- COVER Self draining Returns condensed steam automatically HEATING RATE From room temperature to 130 in 534 minutes for each patient without time loss Clean water KERR Regi No. in Pink Civ in 198 trolle produc 10 acrylic acrylic Vise ! this potentia laborato Your chcanh treated or cont will not ful way App's lam or all other him who Pat containe URING CO R EATER al formuat certain is unform al precision 5 at are CT- lose body the patient are under major and ds heat saves Holds 2 qts laced to heat controlled by setting from 11 rior magour current is dlord at most without dis- Clean water KERR MANUFACTURING CO Page Vine KERR CRYSTOLEX Regular and Formula 102 Regular time 1 to 2 minutes Working time 3 to 5 minutes No. Mixing time 3 to 5 minues Working time 15 to 30 minutes in Pink or Clear Supplied Crystoles the Original Powder and Liquid Acrylie first introduced in 1938 has an enviable record Constant research and accurately controlled production methods have resulted in uniformly high quality product A polymer of Methacrylate and Ethyl- Vervlate it is all acrylic Its purity and accuracy are guaranteed KERR MICROFILM Used sparingilyt should be lightly brushed this new Kere Michalim now becomes a potential blessing to every dentist and dental laboratory Your was patterns will come away easily and cleanly from any surface that has been lightly treated with Kerr Microfilm And no staming or contamination of the wax Kerr Microlilni will not affect wax or wax pattern in any harmin way Apply Microfilm sparingly to inlay dies porce lain or acryle teeth when preparing boxings and all other sui faces used to shape wax Try Micro- him where other Inbricants have failed Put in oz and 1 quart and one gallon containers KERR | MICROFILM lubricanti sit DIRECTIONS 3 rnume Q5 Q5 . Home ete Home Home My Co Home ae d Page Ten KERR MANUFACTURING CO KERR DENTURE SORTEC Applied to the denture it indicates clearly and precisely high spots pressure areas and extended borders Easy to apply and remove KERR DENTURE DENTURESSUOKRITEENC . S KERK SORTEC Sere aot Dencher Dencher KERR IMPRESSION PASTE Kerr Impression Paste is intended for use in conjunction with Kerr Perfection Impression Compound for the taking of original impressions for immediate denture service for temporary rebasing and as a wash in saddle areas of partial den- tures Kerr Impression Paste is conveniently supplied in two tubes containing the separate ingredients of the paste In addition the package contains a special Kerr Mixing Pad to eliminate the use and cleaning of a glass mixing slab KERR IMPRESSION PASTE SPATULA This Stainless Steel Spatula is specially designed for mixing Kerr Impression Paste the blade being of suitable shape and flexibility Length of blade 3 e -- q -- ---- fl fl STAINLESS STEEL KERR IMPRESSION PLASTIC A thermo corrective wash for full and partial denture impressions and rebasing Remains soft at body temper ature It can be quickly hardened by chilling with cold water KEF for and ging tials URING CO KERK TUKE SORTEL Dene, t oe al is intended for err Perfection r the taking of mmediate den- rebasing and of partial den- 5 conveniently ontaning the 2 paste ad ins a special ninate the use ising slab TEEL ctive wash for mpressions and t body temperv hardened by KERR MANUFACTURING CO Page Eleven FR CONCENTRATED RAY SOLUTIONS Distributed by the Kerr Manufacturing Company Because your diagnosis depends on the accuracy and clarity of your rays your first safeguard must be FR Concentrated Ray Solutions The first of the concentrated liquids they were , I introduced more than ten years ago a , Safe swift sure are your results every time with . 4 FR Concentrated Liquid Ray Developer and t a FR Concentrated Acid Fixer Easily prepared a e stable in all climates their constant quality and versatility have made and kept them America's Jeading ray solutions year in year out KERR SOFT SHEET METAL For use in connection with the Giffen Trays and other purposes Can be adapted by swagging or burnishing in extreme cases and partials The metal supplied is 22 ga and 214 wide J KERR COMPOUND LIFTER - Provided with spring to place over metal disk when pound in warm water hold napkin in softening com- Page Twelve KERR MANUFACTURING CO MANUFACTURING GREENE FLEXIBLE IMPRESSION AND BITE TRAYS WITH REMOVABLE HANDLES As Used in Dr. Greene's Test Methods of Patented March Taking Impressions 14 1911. Patented Feb 9 1915 KERR GRE St This 4 it can t feature r part or is requir , KER RING CO D BITE .ions \ \ \ KERR MANUFACTURING CO Page Thirteen GREENE FLEXIBLE IMPRESSION AND BITE TRAYS WITH REMOVABLE HANDLES Showing side view of Tray Showing Removable Handle Showing an upper and lower tray in bite with modeling compounil impressions These trays are made of th evilde metal lower in cum shorter in length and shallower than the finished plate is to impression the metal check issues or back be so that when taking an does not stram on the lip and palate They are so shaped that they amount of change This change by tomming or bending require a minima can be readily made The handle can be quickly removed so that it does not interfere in muscle trimoning and in showing how impression fills out the lips and cheeks They are specially designed for taking impressions with Keir Prfection Inspression Compound by the Greene System KERR UNIVERSAL BRIDGE TRAY This is made to revolve on the handle so that it can be adjusted to any angle The swinging feature makes it universal as one will reach every A, part of the mouth for which a tray of this kind is required KERR FLEXIBLE ALUMINUM IMPRESSION TRAYS Designed Specially for Orthodontia Work Page Fourteen KERR MANUFACTURING CO KERR FLEXIBLE ALUMINUM IMPRESSION TRAYS KER k They easily with They bend easily with hand pressure their shape permits partial as well as full adjusted different widths can be adjusted to different widths and case impressions to be taken Bottom is squared and the flange are made extra deep ( To over strong While with sh RING CO RAYS KERR MANUFACTURING CO Page Fifteen KERR FLEXIBLE ALUMINUM IMPRESSION TRAYS 1 widths and Bottom is To use these trays with the greatest degree of satisfaction they should be heated over a flame and a little wax rubbed over it This This causes the plaster to adhere strongly to it The removal of the plaster is is accomplished by heating the While warm wipe off with a cloth tray They are substantially made and can be trimmed with shears to suit any difficult case e Page Sixteen KERR MANUFACTURING CO KEK KERR BLUE INLAY CASTING HARD Guaranteed to meet the tentative specifications No. 4 of the American Dental Association for Inlay Wares and Kerr Blue fulay Was Hard is rigid at body temperature 99 37.5 yet softens at but a few degrees higher These C. an accurate way for direct lay work as it will properties combine to make is extremely easy to manipulate because of its not low distort in the mouth and still It a Hard Was that becomes soltening point geneous does very plastic on heating and remains homo- or flaking not crumble Can be softened can be over a built up and carves easily without chipping flame or in warm water and holds the heat Supplied in stick form and also in wedges and pyramids Note Also made in Green Sticks iu ; KERR KERR BLUE INLAY CASTING WAX - REGULAR _ ALGULAR thee The well known Kerr Blue Inlay Wax Regular has the same excellent working and carving qualities as the Hard Blue Was but softens at slightly lower temperature KERR IVORY INLAY CASTING WAX For Acrylic Inlays A colorless inlay wax for waxing up acrylic crowns inlays and bridges Made in Hard and Regular with qualities same as the known Kerr Blue Inlay Casting Wax KERR SETTING UP WAX A special wax for use and adjusting the teeth Plate or Try in Plate in setting up on the Base / Put up in sticks of convenient size but if a thicker stick is desired the sides of two can be warmed and stuck together CA \ Stays cially SIX ) gauge A 01 br mode KEF 4 most and a Sprue Cast ada per.it gun URING CO 1-37 1-37 C bine to make outh and s 11 matus homasout copping olds the heat NLAY AX R ue Inlay Wax scellent work- as the Hard shghth lower < lees Made Inlay Cast- KERR MANUFACTURING CO Page Seventeen KERR SHEET CASTING WAX Des Dental Mig Ca | -- ee, Thin flexible sheets for use in casting full dentures saddles and other large castings For wrapping impressions in the indirect method and other purposes Made in seven thicknesses -- 32 30 28 26 24. 22 and 20 gatige or assorted color ginges Supplied in pmk KERR SOFT SHEET CASTING WAX - GREEN A soft sheet was requiring no heat Stays put even on damp models Especially useful in cold weather Made in six thicknesses 28 24 24 22 and 20 gange KERR STICKY WAX 1 KERRKERR Especially prepared Bridge Work Casting sticky wax is wanted for etc. Crown where a and real Sticky Wax can be used in burns out clean and leaves no casting residue is a tough flexible Sticky Wax that adheres stays where put and does not shrink on cooling theretore no danger of pulling your abutments out of shape the cause of a great many bridges not going to place in finished work A Sticky Was that is especially adapted for bridge work where removing of bridges and abutments is desired before investing thereby retaining your model for future reference and proving your case prior to trying it in the mouth KERR SPRUE GUN WAX RODS A special wax rod for sprue guns that will fit most standard makes Saves time in filling gun and avoids waste of wax The quality of this Sprue Gun Wax is of the same type as Kerr Sheet Casting Wax It adapted to model perature thereby is flexible tough and easily It softens at a fairly low temavoiding extreme heating of gun Page Eighteen an cee KERR MANUFACTURING CO MANUFACTURING KERR READY MADE WAX SHAPES Clasps bars sprues etc ready formed of solt clean blue colored wax Speeds up and simplifies waxing Supplied in individual packages in round 8 10 12 14. 10 18 and 20 gauges and bali round 6. 8 10 12 and 14 gauges shape also o ga hah pear KERR Individual Package KERR WAX UP WAX A convenient form of pared for hand casting wax especially pre- waxing of partial denture designs KERR UTILITY Suggestion of DR F. E. A wax that is plastic at room temperature with adhesive qualities for building up purposes A wax for general utility purposes also used wherever counter or carding wax is indicated WAX ROACH - Stick Form Sheet Form ' KERR GREEN CASTING WAX RODS for the Ney Die Plate This was is dead soft and when is used to form various the resulting forms will be pliable tough and shapes the die plate easily attached and adapted to any investmenttacky at room temperatures They are model without the use of heat KEE KE This K F Esp the tu of Buy bard a real real 1The b Wax to musclmuescle 11- 11body a XN We 6 CD c etc. clean eeds up il pack14.1 14.1 nd halt and 14 THE peat sTuldys he plate They are cat KERR MANUFACTURING CO Page Nineteen KERR PLASTIC MODEL MOUNTING WAX This was for use with Kerr Surveyor Surveyor and Designer This wax for use with Kerr Surveyor and Designer os KERR PLASTIC WAX soft Plastic Wax for general use where a material of this nature is indicated KERR IMPRESSION WAX Turmula Suggested by COLLEGE COLLEGE OF DENTISTRY State University of lawa Especially prepared for taking impressions of the tull edentulous case Has a high percentage of flow at body temperature yet is sufficiently hard and rigid at ordinary room temperature to resist warpage and change of detail Is applied to the compound or vulcanite tray The body temperature is sufficient to cause the was to flow readily to copy detail and to register muscle and tissue attachments For such rapidly Howing way it has good body and will resist warpage to marked degree Note made in Sticks e KERR af KERR ~*~ t v - whi uy, . rah KERR KORECTA WAX A was wash for full and partial den- ture work Supplied four degrees of in impres ion impres ion built hardness so that impression can be built up with a hard base finishing off with softest grade for fine detail and extreme accuracy Useful wherever wax impression techniques are employed in denture work Page Twenty KERR MANUFACTURING MANUFCTURINMG ANUFACTURING MANUFACTURING CO KERR CRISTOBALITE INVESTMENTS Patent No 032 002 Maximum Expansion at Minimum Temperature Guaranteed to Meet Tentative Specifications No. 2 American Dental Association for of the Inlay Investments These investments are instead of Quartz unique which is due to the fact that they contain Cristobalite cient thermal expansion used in all other investments Cristobalite has as low as 600 degrees Fahr to suffi- compensate for aslhlryinskmaogoethof gold Cristobalte due to its crystaline form the castings produces exception- KERR M INLAY Kerr Cristobalite Inlay Investment has sufficient thermal expansion to com- pensate shrinkage of the gold Castings made with it fit the cavity without the use of ment complicated A putty or techniques or equip- thick mix is not re- quired The consistency of thick cream is right for the mix of Cristobalite Inlay Investment Almost any wax eliminator can be used inlay It is ideal for all inlay crown and bridge bridge casting casting for it combines accuracy and simplicity of technique in one investment MODEL Kerr Cristobalite Model Investment is extremely hard and will stand all normal strains such as waxing up articulating teeth etc. without danger of breaking or roughening surface It is easy to mix a soft putty consistency being all that is required After cast- ing this investment is remarkably easy to clean from the gold so there is little danger of bending or springing the casting while cleaning it up Most important of all the castings fit Clasps go over the abutment teeth without force No grinding is necessary before teeth are cemented As a result a great deal of the ordinary finishing work is eliminated all that is necessary is polishing This investment is ideal for models for one piece casting for the secondary and outer investment Note Kerr Cristobalite Inlay Investment is cans also 35 h and 100 lb. drums supplied in 3 lb. and 10 lb Cristobalite Model Investment is net Asbestos included in each container and 110 drums net supplied in % b and 12 th cans also 35 Ih The Ku balite la Technique \( ristobalite ristobalite has suffi for the Neeption- vestmen vestmen stand all ixing up ut danger rface It onsistency .iter cast .ably easy re is little ging the Most im it Clasps 1 without ry before It a great work is is necesstment is e casting vestment nd 10 lb container lso 35 lb. KERR MANUFACTURING CO Page Twenty KERR CONTROL POWDER = ' | KERR CONTACL - Kerr Control Powder is used in the Phillips Contrul Technique It is added to Kerr Cristobalite Inlay Investment to change the expansion of the investment to any desired amount necessary in practice As a result custom built castings are easily obtained Just the right amount of expansion for the particular case under the conditions prevailing at the time of investing is always available The technique is extremely simple to follow Supplied in 412 lb. and 12 lb. cans also 35 lb. and 110 lb. drums net Asbestos included in each can KERR AUTOMATIC SCALE Dr. David W. Phillips Patent Pending The Kerr Automatic Scale is used to properly proportion the Kerr Cristobalite Inlay Investment and the Kerr Control Powder when using the Phillips Technique The desired degree of expansion is easily obtained without variation KERR INVESTMENT Patent No. 1753121 MIXER FOR ALL INVESTMENTS A mechanical Mixer of simple construction for spatulating Investments It will facilitate a thorough saturation of powder with the water thereby producing even and smooth mix free from bubbles 3G CO stobahte as suth- for the sception- KERR MANUFACTURING MANUFACTURING MANUFACTURING CO Page Twenty KERR CONTROL POWDER ~ Kerr Control Powder is used in the Phillips Control Technique It is added to Kerr Cristobalite Inlay In- . 4 vestment to change the expansion of the investment to any desired amount necessary in practice As a result custom built castings are easily obtained Just the right : amount of expansion for the particular case under the KERR conditions prevailing at the time of investing is always e CUNTADL available The technique is extremely simple to follow \| Supplied in 4 th and 12 th cans also 35 lb. and 110 lb. drums net Asbestos included in each can KERR AUTOMATIC SCALE Dr. David W. Phillips Patent Pending vestment vestment stand all king up t danger riace It istency ter cast- ibly easy e is little | ging the Most im Clasps without ry before a great work is is necestment is casting Vestment od 10 lb. ontainer so 35 lb The Keri Automatic Scale is used to properly proportion the Kerr Cristo- balite Inlay Investment and the Kerr Control Powder when using the Phillips Technique The desired degree of expansion is easily obtained without variation KERR INVESTMENT Patent No. 1753121 MIXER FOR ALL INVESTMENTS A mechanical Mixer of simple construction for spatulating Investments It will facilitate a thorough saturation of powder with the water thereby producing even and smooth mix free from bubbles Page Twenty ~~ KERR MANUFACTURING CO KERR VACUUMATIC No matter how thoroughly you may mix your investment seldom if ever free from plaster or stone it is occasional bubbles of air These bubbles often leave responding flaws on what would otherwise have been a satisfactory surface cor- That the throughout prediction ties use of vacuum will soon become general dentistry and dental technology is a unhesitatingly made by leading authors- The new Kerr Vacumatic is available to dentists and dental laboratories in complete beautifully finished cabinet Or it can be purchased without cabinet for mistallation in your laboratory bench either which will restoration case you will command insure the smoothness a modern device and it of every dence that bubble will Just place your mixing bowl with completed mix the Vacumatie Cover it with the bell ar Start the berr Vaeumatic and let it run for not more than 15 seconds The rubber mat forms a perfct perfect seal Then go ahead with your work in absolute confimar the perfection of your restoration's smooth surface SPECIFICATIONS DIMENSIONS 24 wide x 18 deep x 3734 high CABINET Formed sheet steel with rounded corners on welded channel base Handsomely Handsomely Inished in tone lacquer Formed panel door Inverted louvers on back panel insure proper circulation of air around pump JOGGLE PLATE Steel 18 x 18 Spring pended and locked by elastic stop nuts Vacuum inlet brazed on Soft rubber sheet included to seal bell jar Cone type valve for positive seat C ceaegs Ya f .] _ POWER Flectric motor 110 volt AC or DC 14 || Motor and pump mounted on rubler to climunate vibration PUMP High speed hore for full rapid rotary type with vacuum Nitriloy developed blades in- sade nitri sleeve | Oil aur separator ins cluded Capacity 15 en of free air displace- ment per munte to create 297 seconds inside x 5 bell jar vacuum in 5 OH RESERVOIR Capacity one gallon Kitage Visible HOSE Neoprene for oil resistance CONNECTION Standard 110 volt outlet Cord and plug supplied KERR V Kerr peratureand smoot contr white inve bubbles KERR DENTALL LUBRICA K Ties A high Investment Investment For {i set 20 n matche l RING CO stone it is leave corariace ane general ology IN 20 ng authori The dentists beautifully ed without A bench fern device 1 CACRY qa teat aus (iar Start more than neet seal olute contith surface md hase ted lonvers KERR MANUFACTURING CO Page Twenty KERR DEBUBBLIZER Kerr Debubblizer is a surface reducer and tem- controlling agent Investment will flow uniforialy and smoothly to all portions of the wax pattern Temperacontrolling agent prevents excessive temperature rise while investment sets eliminating danger distortion and bubbles KERR DENTAL LUBRICANT Facilitates the removal of wax patterns from amalgam dies or from preventing breakage or distortion distortion May be used in the mouth One fluid ounce in battle KERR INLAY PAINTING BRUSH SOem emp a uoam reemae es WO n 4 3]emerrenr A high grade Sable Brush designed especially for painting wax patterns with Investment Can also be used for other purposes KERR STRIP ASBESTOS For use with Kerr Cristobalite Inlay Investment Kerr Strip Ashestos aa thick x 11 wide for use with Kerr Cristobalite Inlay Investment is supplied in packages of small 12 ft medium 34 ft and large 100 ft KERR DIOLITE For Indirect Inlay Dies Initial set 15 minutes Final set 20 minutes Supplied in cans containing approximately 1'4 pounds also 13 pounds ( re KERR 4 i BeIeOUTiSduae Page Twenty KERR MANUFACTURING CO KERR CENTRIFICO CASTING MACHINE Gardner Patents Permanent Crucible Illustrating Complete Equipment KERR V Ker Stat In order to obtain the soundest castings and the most consistent results from centrifugal force it must be properly applied and controlled The Kerr Centrifico Casting Machine applies this type of force properly in controlled amounts It is motivated by an oversize steel spring in the base It utilizes a secondary arm pivoted to the main arm This secondary arm car ries the flask keeping it in line with the casting force as that force changes from inertia at the start to centrifugal As result the metal travels in a straight line directly into the mold extremely dense castings are produced the gold will not spill and failures due to the casting machine are eliminated The machine is automatically operated compact and well constructed Due to a unique system of cradles in the permanent crucible type the Rasks are attached to the arm in moment this does away with the tightening of bolts clips springs or catches and eliminates danger of burned fingers and loss of heat from the mold The flasks are automatically centered with the permanent fireclay crucible which will hold sufficient gold for any size casting without spilling The crucible is light in construction so that it does not draw the heat from the gold The Kerr Centrifico Casting Machine fulfills every requirement It is an effi cient casting machine which will give long service and pay big dividends in satisfactory dense uniform and consistent castings It provides an important link in modernizing the laboratory and enables the user to get full value from the space occupied by that laboratory For use in U U RING CO Illustrating Complete Equipment results from rr Centrifico ounts It is ry arm car- hanges from straight line old will not machine 15 he flasks are ing of bolts loss of heat manent fire hout spilling at from the It is an eff dividends in n important lue from the KERR MANUFACTURING MANUFACTURING CO Page Twenty Kerr Cradles Stainless Strel 1C 2C 3C Designed for holding and centering flasks with the crucible They are numbered to correspond with the Hasks Kerr Flask No. 1C For Inlays Brass W Seam Juss 11 In mesare drameter Kerr Flask No. 3C | For Partials ~- Seamless bameter Stainless Steel " Husple Kerr Flask No. 2C For Saddle Badges Jess Sted <= Scamless mside diameter Shan " 1... Kerr Flask No. 4C Mor Full Plates Steel - Stainless side diameter 34.9 Stamless 34.9 30 Kerr Crucible Former For use TC and No. 1C with Keir Flasks 20 Nos Kerr Crucible Former Plate No. 2C For use with Kerr Flasks Nos 20 30 and 40 27 wa, Extra Weights For use with Ken BC and IICC Flasks Nox Sprue Pins One plg gauge Spine Pins fur flays Kerr Clay Crucibles Made in two sizes snuill und large ench supplied with euch nun lune One of Kerr Asbestos Liners ) For use in crucible when melting the gobl Supphed Supphed in packages of 12 Kerr Tongs These tongs are supplied as regula equipment with every Ken Centrifico Casting Machine Small size length 111 with Flasks Nos 1C and Large size length 141 with Kerr Masks Nos 3C m 2C in and for use for use C. KERR DUPLICATING FLASKS fy New clever design allows rapid cooling Made in two sizes small and large Small size approx Large size approx 41 3x 14 inches 5x 33 2 inches Page Twenty KERR MANUFACTURING CO KERR INLAY FURNACE ELECTRIC The Kerr Inlay Furnace will produce tempera tures from 800 to 2000 degrees Fahrenheit It heats rapidly to any temperature in that range The heating element is large and has a long life The furnace is low in price and comes complete with a pair of Kerr Inlay Tongs Operated on 110 volts either A.C. or DC current KERR COMPRESSED AIR CASTING MACHINE T. A. MIXON Patented Oct. 6 1925 The following equipment is furnished with each machine 2 only Adapters 3 only extra Asbestos Packings 3 only No. Flasks 1 only each Nos 2 4 and 5 Flasks only each Nos 1,2 and 3 Sprue Formers 1 dozen each Sprue Pins Nos 16 and 18 gauges Flask No. 1 Inlay Brass wall 1 deep by 1/4 diameter " Flask No. 2 ~ - Saddle and Bridge Flask Bras Sis ze diameter " wall 214 deep by 1 Flask No. 4 Partial and Small Plate Flask one piece gray iron nickel dipped 334 deep by 1by " For vertical casting (mg > &> es Flask No. 5 Full Plate Flask one piece gray iron nickel dipped 344 deep by 18 by % For vertical casting Crucible Former No. 1 For use with Flask No. 1. To be used for Inlays etc. Crucible Former No. 2 For use with Flask Nos 1 and 2 for multiple Sprues used for inlays Saddles etc. To be Crucible Former No. 3 For use with Nos 4 and 5 large Flasks only Kerr Sprue Pins For use in casting inlays with air pressure Supphed in either 16 gange or 18 gauge machine KERR M The K quantities ing boat sl it cannot d will not d It per terials for its extra 1 Clean manner It ou patients o supplied in price i I -F Ee ~ Put up 22 ard G CO y VE Adapters 2. 4 and rue Pins icter " by 11 n nickel I casting - Size elt To be KERR MANUFACTURING CO Page Twenty KERR HYDRO Patent No. 1986751 SALIVA EJECTOR AND WATER REMOVER The Kerr Hydro will quickly remove large quantities of water or saliva and due to the adjust- ing boat shape shield it is comfortable to the patient for y it cannot dig into or draw the sensitive month tissue It will not clog It permits of adequate chilling of impression may Ke terials for the chilling water is removed easily and quickly due to its extra large opening Cleaning is simplified and it may be sterilized in the customary i | manner It is unbreakable and may be used on children hypersensitive - patients or when working under general anesthesia It will remain bright It is supplied in two sizes No. Large and No. 2 Small and a saving is effected in price if several are purchased at one time KERR GERMILETOL Germiletol is a scientifically developed preparation containing the essential properties specifically required for antiseptic lubrication without corrosion of all Angle Attachments Handpieces Forceps Pliers etc. Contra Angles and Right Angles must be constantly lubricated to render efficient service and for sanitary reasons should be treated with Germiletol after each patient Germiletal properly used will solve the Angle prob- lem for the dentist Angles will run freely with less danger of harboring germs until worn out or ready Put up in % 02 and 6 ur bottles and 16 oz cans for replacement parts Page Twenty KERR MANUFACTURING CO KERR PLASTERS FOR MODELS AND IMPRESSIONS plaster A high grade Snow White in color unexcelled for hardness and purity The uniformity of its quality can always he depended upon Plasters No. 1 and No. 2 are the same in every respect except that the setting time is much faster in the Impression Plaster No. 2 Being ground specially fine enables this plaster to copy the finest lines in taking impressions and also causes it to set very dense and hard giving a smooth white sur- face when used for models Se j Cansa & Kerr Snow White Plaster No. 1 Kerr Snow White Impression Plaster No. 2 Plain or Flavored Plaster No. is supplied in 10 lb. cans 35 drums net and 100 drums Gr Plaster No. is supplied in lb. cans 35-1h drums net and 100 th drums Gr ; KERR { Kerr Foilex Flasking Investment for boiling water technique only Failex recommended fou fou all centres centres as a Risking material Due its Stremely Stremely low setting expansion the in teeth are held binly in place within the slightessltightest hifting assning greater greater accuracy is cass see de flask auch an remove from the carred deat Kerr Snow White Extra Hard Model Plaster No. 4 A Snow White Plaster specially developed for pinducing accurate models of extreme hardness dednenssityity and and strength strength . Highly desirable for vulcanite or synthetic resin deatuses study models and orthodontia work Repanduces the finest lines and surfaces Podex 1 Fishing Investment put 10 cases 45 1. drumos net and 1880 H dums net Plastes No. is put ih caus 35 lb. drums net and 100 ili drions act Kerr Hard Dental Laboratory Plaster For General Laboratory Uses A superior grade of Dental Laboratory Plaster specially prepared and recom mended for its extra strength hardness and density Kerr Hard Dental Laboratory Plaster is put up in 200 net bbls KERR M The Ko work in th tion is ca feather cate impre cycle alter parts cont vibrator Very 1 well made Spatula es for the heav ter Investn KER KERR i RING CO dness and that the > ie ession lavored Irum frusis G. be, allard allard 4 eveloped for me hardnes nthetic traits ontia wak ices 11 / net and secon .ls KERR MANUFACTURING CO Page Twenty KERR STONE A rapid setting stone that is mixed only slightly thicker than plaster thick enough to have sufficient body to build up but not so stiff that is difficult to manipulate It is an ideal stone due to its accuracy strength ease of mixing and rapid setting It has a dry crushing strength of 8,000 - 10,000 lbs per square mich and less than 1/10 per cent expansion Unexcelled for use with vulcanite and all acrylaicryclic and resin denture materials wherever dental casts of extreme hardness strength and density are re- quired also for flasking Put up lb 14 100 1b drums gross cans 35 drums net and KERR FLO VIBRATOR Patent No. 1.986.038 The Kerr Flo Vibrator is heavy enough for all work in the laboratory and dental office yet the vihration is easily controlled by the operator down to a lightness that will not endanger the most delicate impression or pattern Operates only on 50 to 60 cycle alternating current Absence of many moving parts contributes to the long life of this built vibrator KERR LABORATORY SPATULAS Very rigid strong and well made Stainless Steel Spatula especially adapted the heavy mixes of Plaster Investments and Stone STAINI STFEL Made in two sizes 1 and No. 2 No. Size of blade x35 x approx 1/16 thick No. Size of blade x3 x approx 1/16 thick KERR SNOW WHITE PLASTER ACCELERATOR Kerr Accelerator will accurately time and control the proper set of Kerr Snow White Plaster Put up in powder form which when dissolved in water will make stock solution Various stock solutions can be made up by following directions as to proper quantities of powder and water Page Thirty KERR MANUFACTURING CO KERR RAPID CUTTING ABRASIVE PASTE Used in improving the occlusion and articulation of arti- ficial teeth Used in cavity or crown and bridge abutment preparations with mounted stones the abrasive hastening the grinding while the carborundum point acts as a carrier Used on the surface of a stone to prevent thus insuring rapid cutting with less pain heating Easily applied greaseless stays where put readily washed off with cold water KERR SUPER Separating Fluid This new separating fluid leaves no film dries immediately and is inflammable Any Plaster Stone or Investment may be poured against it immediately after application Put up in ounce and ounce KERR GLOSSY GLAZ Reg U. 8. Pat Off A substitute for tinfoil and cellophane in denture work A model preservative and protector Put up up in 21 % and ounce bottles KERR RAPID MODEL GLAZ A protective glossy coating for Master and Study Models If used on damp investment models wax will adhere to it This materially speeds up waxing Burns out leaving no residue Will not cause fins Put up in % and 32 ounce bottles KERR M. ClLa Put up 31 ve Pints Full D G CO E im of arti prepara ing the 1 Catter beating : readily KERR KERR MANUFACTURING CO Page Thirty KERR CONE SOCKET AND PLAIN STEM HANDLES Cone Socket Brass on 480m 50 Chromium : Plated ' Brass 7 Chromium Plated i Brass 8 Chromium Plated 6 TG a Dae A : nD ay K KE ER RA A Brass 16 Chromium Plated Brass : 160 Chromium mm 160 Chromium Plated are work . i > Put Put up tn 1 oz and oz bottles Punts and Gadions Full Directions A Highly Efficient Chlorine Solution This Chlorine Solution has been compounded with great care in order to embody the requirements of a solution for both the Medical and Dental Profession Properties Toxic Non Acid Coagulant Irritant Antisepte Deodorant Neutralizes Toxmis Pus and Necrosed Tissue Solvent Relieves Inflam- mation Stimidates Healthy Tissue Repair Uses for the Dental Profession Highly recom- mended for the treatment of Pyorrhen Pus Pockets Inflammations Root Canal and Apical Abscesses Scaling and Extractions Aseptic Cavity Preparations and the Cleansing of Removable Artificial Dentures Bridges Bridges Bridges etc. Page Thirty KERR MANUFACTURING CO KERR MIRRORS BOILABLE KERR NO NO ad Nos 1 Ul 3 fad 2 Chromum Plated Cone Socket Mouth Mirrors and Magnifying Chromium Plated No. 40 or Plain Style Plane and Magnifying We make a line of mouth mirrors that can be sterilized by boiling The mirror back is water tight preventing any leakage We make all mirror backs of heavy brass They are chromium plated and the glass used is of a very hard brilliant quality exceptionally well polished These mirrors are made in the following sizes both plane and magnifying 58. 14. % and inch No. 40 or plain stem style mouth mirror is made with a thread to fit the ordinary mirror handle Price same as Cone Socket The me time becau Qu 4 The trimate than kind faster Non Trammers without LT scratches 110 ishing Self Whorl dest matic Jean clogging Cool C Clean h edges meal less heat Kr Conve SIS Sp mean eas festoon ot .../ur^ Long Thigh 140 1 mtral a hardness sharpness me Kerr A se HAL Kerr for Dee ch (( he mirror of heavy brilliant ing sizes > fit the KERR MANUF ICTURING ICTURING CO Page Thirty KERR PULP CANAL SEALER Formula and Technique of Dr. U. G. Rickert TOXIC IRRITANT A Pulp Canal Sealer and Lining neither toxic nor irritant of simple technique and tested formula When the material is mixed into a plastic state and placed in pulp canal a Percha Point is then forced into it through the Sealer pressing it into all the irregularities It also will be found an excellent Pulp Capper when used on nearly exposed pulps where it has been impossible to remove involved dentine ACRYLIC TRIMMERS The new Kerr Acryhe Trimmers time time because of these teatures + - save from 25 to 50 in denture finishing Quick Conting Conting The trimmers cut rather thai grand Curling is Baster Scratching Thomers ent smoothly without scratches scratching scratches mean easier No pul ishing Cleaning Whorl design gives antochaning and 10 a lenagarnig Chol Cuiting Clean sharp cutting edges in a less traction traction dens reat cates elle Convenient Six Shapes and SIZES BROKE PENA Amuning and testsworting of any destite destite sultant sultant Lasting High speed steel specials specials Iv martaschest martaschest ben esta ene hardness hardness and durable sharpness means long lite No.er p*ate No. No 2 No3 Kerr Acrylic Trimmers will pay for themselves quickly They will save time save money Ask your dealer for them Kerr Acrylic Trimmers are available in two shank sizes and inch for Dee chucks Page Thirty KERR MANUFACTURING CO KERR PULP CANAL FILES Patented June 24 1919 <SED Ne Nate ee Enlarged Reproduction of File This instrument is designed for opening up and getting into root canals Even the most difficult cases can be successfully prepared with these files ' XP tbs we IC By starting in with the smaller sizes and using the other larger sizes in sequence if necessary giving them about a quarter or a half turn in the canal and directly withdrawing will remove all debris and leave a smooth tapered hole free from shelves Style A Style B has a groove cut in the knob so that a wire or thread may be attached This will prevent the instrument getting away from the operator when used on a difficult case . 56 IIP N XC Style B Made in three each No. 1 or or X coarse as styles of six sizes XX fine to No. 6 shown in the re- productions Special No. 0 ur XXX fine furnished on order Half dozen all one size or assorted from 1 to 6 in package I 45 6 NC NC NC Style D Note must be remembered however that like any other steel file its edges become dulled in time and care should be taken to always use a sharp instrument KERR N KERK alt a ae 5 d2 11 ING CO ING KERR MANUFACTURING CO | Page Thirty 1 Ale its a sharp 2 XIP 5 FM CIC 7 CIC 9 Style D 12 Hustrating use of Style A in Kerr Kerr Broach HolHdolderer KERR PULP CANAL REAMERS tf | A a | 21 2 eel g C 7 8 9 12 XXX M CIC CIC No. Right Angle yr eIrT remus | HO 2 3 4 E 7 8 9 10 10 11 11 12 XXP FM FM XC No. 7 Hand Piece Page Thirty KERR MINUFACTURING MINUFACTURING CO KERR PULP CANAL REAMERS | ane - ee Enlarged RepReproduction roduction of Reamer f 2 ITF ,' F 5i C IC Style A . y 2 IT | iil 5 $ 8 9 12 IC StyleB The Kerr Reamers are slightly tapering spirals made from a very tough and very flexible steel possible They have a sharp cutting edge and cutting point Made as hard as brittle they retain their cuting eige for considerable period notwithstanding hardest destine without being their use on the Ranging in size from XX fine to as large a size as could possibly be used for any purpose thoroughly covers every requirement The sharp spiral having having the shape gives the Kerr Reamers the minst rapid cutting capacity known and necessary clearance a clean smooth tapering hole debris produced by an operation is brought to the surface leaving The Kerr Reamers are particularly difficult practically indispensable for opening and reaming out all Pulp Canals cutting point canals sharp spiral in molar roots and especially those having putrescent pulps The sharp Kraduation of sizes makes cutting edge it possible slight taper very tough and Nexible temper and uniform by starting if necessary with the XX fine then using the larger sizes m sequence to prepare the canal as desired desired fills For extracting nerves Kerr Reamers are ideal A reamer that completely the canal should ebnetiurse enderbveeinagwraeyvolved will cause the nerve to twine arounil the spiral and remusing will bring the Beinga spiral cement or medicament may be carried to duced for filling by holding the tanner at the entrance to the cement to be forced to the apex When the curting edge of and smooth may be used for cleaning on medicating canals a reamer is dulled carrying cotton for If dull or round pointed reamer is required it may be obtained by touching the point on a stone Style is intended for use between the thumb and forehnger It has a groove cut in the knol so that a wire ur thread may be attached This will prevent the reamer om getting away from the operator operator when being used on a difficult case the apex of the root canal and reversing it Cement is intro This causes the The larger sizes are very useful for preparing canals for crown posts Made in twelve sizes graded from No. 1 or XX fine to No. 12 as shown in cute Special No. 0 or XXX fine surnished an order Half from 1 dozen to 6 or all one size or assorted 7 to 12 in package Husuauing use of Style in Molar KERR M. The requi have an abu for quick an The case access to th required all the case on tion are ke of formald which has b The traystrays modate the sizes of st Reamers an placed in the and also ta ments and operation | from the c It is ar can be ster dry hear C CO KERR MANUFACTURING CO Page Thirty PULPLESS TOOTH PROBLEMS -byDR EDOUARD M. HALL The object this book is to set forth plainly and as simple a mauner as possible the essential factors having to do with and constituting success in root canal work ule steel hout being 135 on the ! purpose Known and ce leaving alp Cauals The sharp J uniform using the anal should 1 bring the IS NIET use the KERR PULP CANAL INSTRUMENT CASES Suggested by Dr. Edouard M. Hall The requirements in modern pulp canal operations necessitate that the operator have an abundant supply of instruments and materials to be used in the operation for quick and easy access and in aseptic condition The case has a classified arrangement of trays with the idea of quick and easy access to the diversified instruments required all of which when put into the case in sterile or aseptic condition are kept in that state by the use of formaldehyde gas provision for which has been made The trays are arranged to accont modate the necessary supply of all , sizes of styles B and D Files Reamers and Barbed Broaches when placed in the separate compartments and also take care of other instruments and materials needed in an operation Each tray can be removed from the case separately if desired It is an all aluminum case and can be sterilized by placing in oven if dry heat preferred Page Thirty KERR MANUFACTURING CO KERR GLASS ALCOHOL STERILIZERS Suggested by Dr. Edouard M. Hall Chromium Plated KERR M In the progress of doing a root canal operation the operator often finds himself in need of some means of sterilizing instruments that have been used before they can be used again This alcohol sterilizer has for its purpose a means of keeping sterile and of resterilizing instruments that have been used so that they can be used over and over again in the same operation as long as their efficiency permits Also of providing containers for alcohol to be used as a dip in the process of faming instruments KERR MEASUREMENT WIRES These are to supply the need for wires to be used rays Deformities are suggested in order that the the different wires in the picture as measurement wires in operator may distinguish Sizes Fine Medium and Coarse KERR BROACH HOLDERS This Broach Holder is made on the principle of bit chuck and comes in three pieces namely the chuck the nose and the handle No. 1 is hollow throughout and carry a fine wire so that it may be used as dentometre Espec temper i Made contra a Chron ING CO KERR MANUFACTURING CO Page Thirty KERR PULP CANAL PLUGGERS Js himself efore they le and of over and Also of daming wireisn istinguish No.No.2 ... in three hout and Especially designed with smooth plugger point and temper for use in carrying filling material into root canals tough spring Made in set of twelve assorted sizes six sizes straight and six sizes contra angle Chromium Plated Page Forty KERR MANUFACTURING CO KERR PERCHA SPREADERS Suggested by Dr. Edouard M. Hall Se All pulp canals are not perfect cylinders in form Many of them being oval or ovoid in shape to the extent that a round Percha Point will not conform to the walls of the pulp canal It is often times desirable to have some pointed instrument that can be pushed into the canal along the side of the percha contents and by an oscillating rotary movement firmly press it against the side walls of the canal leaving an opening into which another Percha Point can be forced A series of three instruments are sup plied with the idea of meeting that need : . ao, Chromium Plated KERR PULP CANAL PROBES oa, we 2 3 Style A Tough SPRING TEMPERED steel instruments treated by a special process that renders them RUST PROOF when subjected to either moisture of the mouth or water They have a dark UNPOLISHED finish to which cotton will adhere much better than to a polished surface These qualities in addition to their being inexpensive make them very desirable in the treatment of pulp canals Made in three sizes No. 1 or XX Fine No. or X Fine and No. 3 or Fine ; ; 2 Style B b ae tar Tyee , ae nae 4 wo awe a er ras ate ae roe ee a a ra . ? ... ... ... nantennetematll t a tan es OS A cat |