title: Use of CVDentUS diamond tips for ultrasound in cavity preparation.
abstract: OBJECTIVE
  The aim of this study was to evaluate the use of CVDentUS tips for preparing cavities with ultrasound by dentists certified to use the Chemical Vapor Deposition (CVD) system.
  
  
  METHODS
  One thousand sixty (1060) questionnaires were sent via e-mail inquiring about the use of the system with regard to the indication for use, need for anesthesia, final form of cavity preparation, and tip wear.
  
  
  RESULTS
  Of the valid answers, 81.4% of the dentists used this system for tooth preparation in up to 60% of cases treated. For these procedures, 17.8% did not require use of local anesthesia while using the system. The final form of preparation compared to high speed diamond tips was considered to be more conservative by 48.3% of the certified professionals. With regard to wear, tip and/or adapter fractures, and low cutting speed, 44.4% of users reported problems.
  
  
  CONCLUSIONS
  The CVD system seems to be used for tooth cavity preparation by the majority of the certified dentists. This is due to the resultant conservation of tooth structure despite the necessity of anesthesia and the limitations with regard to the lack of cutting efficiency of CVDentUS and tip wear.
  
  
  CONCLUSIONS
  The CVD system seems to present limitations with regard to cutting efficiency, wear, and the use of anesthesia in a majority of restorative procedures.
authors.affiliation: Dental Research Center at São Leopoldo Mandic, Campinas SP, Brazil.
authors.forename: Julie Ceolin
authors.initials: JC
authors.lastname: Predebon
authors.forename: Flávia Martão
authors.initials: FM
authors.lastname: Flório
authors.forename: Roberta Tarkany
authors.initials: RT
authors.lastname: Basting
mesh_terms: D003737:Dental Cavity Preparation / Q000295:instrumentation* / Q000379:methods; D003755:Dental High-Speed Technique / Q000295:instrumentation*; D003762:Dental Instruments; D018130:Diamond; D006801:Humans; D011795:Surveys and Questionnaires; D014464:Ultrasonic Therapy / Q000295:instrumentation*
chemical_list: D018130:Diamond