Ultrasonic margin preparation for fixed prosthodontics: a pilot study.

  title={Ultrasonic margin preparation for fixed prosthodontics: a pilot study.},
  author={Poppy Horne and Vincent Bennani and Nicholas Chandler and David G. Purton},
  journal={Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]},
  volume={24 3},
PURPOSE   Atraumatic, oscillating ultrasonic instruments have recently been developed for prosthodontic margin finishing. This in vitro observational pilot study aimed to compare the condition of crown preparation margins finished using new ultrasonic instruments with margins finished with conventional rotary instruments. METHODS   Two extracted human canine teeth were prepared for crowns. A split-tooth model was used to refine the margins: half of the margin was finished with conventional… CONTINUE READING


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