Abstract
Replies to questionnaires about the preparation of teeth for porcelain jacket crowns, complete gold crowns, and for three-quarter partial veneer crowns indicate that dentists employing the ultrasonic technique are limiting themselves to the use of a very few Cavitips. These are usually the newer offset No. 15 and No. 331, in addition to two or three of the older numbers. The techniques used vary in different parts of the country according to the individual experience. No single step-by-step procedure has been agreed upon as yet. That progress has been made in this direction is indicated by the fact that the operating time compares favorably now with that where rotary instruments are employed. Further study and research into this new method of tooth preparation is needed and should evolve the most efficient techniques for its use.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
