. Operative and dental anatomy technics; a class-room and laboratory manual for freshmen dental students . Fig. 120.—Ainsworth rubber dam punch. Fig. i 21 .—Alcohol lamp, flame shield and gold annealer. ADJUNCTS AND ACCESSORIES 8S Fig. 122.—Re-volving head enginebur holder for labo-ratory Fig. 123.—Dental engine. 86 INSTRUMENTS AND APPLIANCES tissue, cotton, gold and rubber; water syringes (Fig. ii8):hot air syringes and chip blowers (Fig. 119) for drying andremoving debris from cavities and canals; rubber dam punches(Fig. 120) for punching holes in the rubber cloth; as well asmany other
. Operative and dental anatomy technics; a class-room and laboratory manual for freshmen dental students . Fig. 120.—Ainsworth rubber dam punch. Fig. i 21 .—Alcohol lamp, flame shield and gold annealer. ADJUNCTS AND ACCESSORIES 8S Fig. 122.—Re-volving head enginebur holder for labo-ratory Fig. 123.—Dental engine. 86 INSTRUMENTS AND APPLIANCES tissue, cotton, gold and rubber; water syringes (Fig. ii8):hot air syringes and chip blowers (Fig. 119) for drying andremoving debris from cavities and canals; rubber dam punches(Fig. 120) for punching holes in the rubber cloth; as well asmany other accessories and appliances, will gradually becomefamiliar articles to the student, and will not be touched uponhere (Figs. 121, 122 and 123). INSTRUMENT MAKING Object.—To gain a knowledge of the process of hardening,tempering and annealing steel; of the proper methods ofshaping and sharpening tools; of the reason for placing thevarious angles in the shanks; as well as gaining a familiaritywith the class, subclass, order and formula names of theinstruments. Instrument blanks (see Fig. 228) may be obtained fromthe various dental instrument manufacturers—either in long-handle or cone-socket forms. The blanks are annealed, butshould be re-annealed by the student before beginning thet
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