title: Instrumentation of furcation with modified sonic scaler inserts: study on manikins, part I.
abstract: The purpose of this study was to determine the suitability of different scaling instruments for the debridement of furcations. 12 upper and 12 lower replicated molars with through-and-through furcations were instrumented 3x with 5 different types of instruments: (i) hand instruments; (ii) hand instruments in conjunction with diamond burrs; (iii) a conventional ultrasonic scaler insert; (iv) a conventional sonic scaler insert; (v) a set of 2 modified diamond coated sonic scaler inserts with different angulated shafts. The plastic replicas were fixed in a manikin head without replicated soft tissues. Following debridement, weight loss and % of instrumented furcation area were assessed. In the case of lower molars, it made little difference whether they were treated with hand instruments, hand instruments combined with diamond burrs, or diamond-coated sonic scaler inserts. On upper molars, however, significantly more area was instrumented with the diamond-coated inserts than with the other instruments. Substance removal was greater with diamond-coated inserts than with the other devices. In conclusion, an effective debridement of the furcation seems possible only with an odontoplasty, in which a furcation is fitted to the instrument by means of intensive instrumentation, thus leading to substance loss. To improve results with these instruments, further research is necessary.
authors.affiliation: Abteilung Parodontologie in der Poliklinik für Zahnerhaltung, Parodontologie und Kinderzahnheilkunde im Zentrum für Zahn-, Mund-und Kieferheilkunde, Greifswald, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Kocher
authors.forename: C
authors.initials: C
authors.lastname: Gutsche
authors.forename: H C
authors.initials: HC
authors.lastname: Plagmann
mesh_terms: D000180:Acrylic Resins; D003475:Curettage / Q000295:instrumentation; D003646:Debridement / Q000295:instrumentation; D012534:Dental Scaling / Q000295:instrumentation*; D018130:Diamond; D004867:Equipment Design; D017823:Furcation Defects / Q000473:pathology / Q000628:therapy*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008334:Mandible; D008348:Manikins; D008437:Maxilla; D008963:Molar / Q000473:pathology; D011091:Polyesters; D011791:Quartz; D013499:Surface Properties; D014092:Tooth Root / Q000473:pathology; D014464:Ultrasonic Therapy / Q000295:instrumentation*
chemical_list: D000180:Acrylic Resins; D011091:Polyesters; D011791:Quartz; D018130:Diamond