Rotary instruments were introduced in dentistry in the ______ to complement the use of hand instruments in the cutting,grinding,and polishing procedures.

Name: Rotary instruments were introduced in dentistry in the ______ to complement the use of hand instruments in the cutting,grinding,and polishing procedures.
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Rotary instruments were introduced in dentistry in the 1940s.They were used to complement hand instruments in cutting,grinding,and polishing procedures.

Rotary Instruments Were Introduced in Dentistry in the ______ to Complement