title: Calculus removal from multirooted teeth with and without surgical access. (I). Efficacy on external and furcation surfaces in relation to probing depth.
abstract: The purpose of this study was to evaluate the efficacy of the calculus removal from multirooted teeth after closed root planing, open root planing and use of a rotary diamond for the furcation area. The effect of pocket depth on the effectiveness of calculus removal was also examined. 30 first and second lower molars scheduled for extraction, with a calculus index > or = 2 and a degree II or III furcation involvement, were divided into 3 groups: 10 molars were scaled and root planed using a closed approach; 10 molars were scaled and root planed using an open approach; 10 molars were scaled and root planed with an open approach and rotary diamond was used for removal of deposits in the furcation area. After extraction, the teeth were assessed in a stereomicroscope and the % of residual calculus was calculated on external and furcation surfaces. The % of residual calculus on the external surfaces was significantly higher after closed than open root planing (p = 0.002). Pocket depth affected the effectiveness of scaling and root planing, with more residual calculus observed for depths > or = 7 mm for both groups. Differences between the 3 groups in the % of residual calculus on furcation surfaces were statistically significant (p < 0.0001 and p < 0.0005). The most effective method was the combination of open root planing and rotary diamond. More calculus was observed in all groups for pocket depths > or = 7 mm but the difference was significant only in the closed group (p = 0.006).(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Periodontology, University of Athens, Greece.
authors.forename: A O
authors.initials: AO
authors.lastname: Parashis
authors.forename: A
authors.initials: A
authors.lastname: Anagnou-Vareltzides
authors.forename: N
authors.initials: N
authors.lastname: Demetriou
mesh_terms: D000328:Adult; D000368:Aged; D003728:Dental Calculus / Q000473:pathology / Q000628:therapy*; D012534:Dental Scaling / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D008963:Molar / Q000473:pathology*; D010514:Periodontal Pocket / Q000473:pathology*; D010519:Periodontium / Q000601:surgery; D016745:Root Planing / Q000295:instrumentation / Q000379:methods*; D013524:Surgical Flaps; D014092:Tooth Root / Q000473:pathology*