title: [Calculus removal efficiency and injury potential of vertically oscillating metallic and carbon ultrasonic tips].
abstract: This laboratory study investigated the efficiency and aggressiveness of metallic and carbonic inserts of a vertically oscillating ultrasonic device (Vector-system) at different power settings. The following parameters concerning periodontal treatment were assessed under standardized conditions: calculus and tooth substance removal, mean surface roughness and micro morphological appearance of the treated roots. Concerning the calculus removal potential, no significant differences were found between the types of insert used. The carbon fibre inserts, however, showed significantly more tooth substance loss than the metallic inserts. These findings were confirmed by micromorphological SEM analysis. In view of these results, the repeated use of these carbon fiber inserts during periodonatal sustaining therapy cannot be recommended.
authors.affiliation: Klinik für Präventivzahnmedizin, Parodontologie und Kariologie, Universität Zürich.
authors.forename: Felix H F
authors.initials: FH
authors.lastname: Naef
authors.forename: Beatrice
authors.initials: B
authors.lastname: Sener
authors.forename: Christine
authors.initials: C
authors.lastname: Bürgi-Tiedemann
authors.forename: Patrick R
authors.initials: PR
authors.lastname: Schmidlin
mesh_terms: D000704:Analysis of Variance; D001641:Bicuspid; D002244:Carbon; D000077482:Carbon Fiber; D003728:Dental Calculus / Q000628:therapy*; D003755:Dental High-Speed Technique / Q000009:adverse effects; D003762:Dental Instruments / Q000009:adverse effects*; D012534:Dental Scaling / Q000009:adverse effects / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008670:Metals; D008855:Microscopy, Electron, Scanning; D018709:Statistics, Nonparametric; D014072:Tooth Abrasion / Q000209:etiology; D014092:Tooth Root / Q000293:injuries*; D014464:Ultrasonic Therapy / Q000009:adverse effects / Q000295:instrumentation
chemical_list: D000077482:Carbon Fiber; D008670:Metals; D002244:Carbon