DENT3060 Lecture Notes - Lecture 22: Debridement, Ultrasound, Biofilm
Document Summary
Little difference in probing depth & time of instrumentation. Clinical attachment gain & pd reduction: >initial probing depth, maintained over long periods. Root surface debridement: only partially removes calculus, pd, despite this clinically successful. Ultrasonics: equally successful as hand scaling, may provide benefits in narrow furcations, does not save time required for debridement. Traditional conventional staged debridement: 4 quadrants (generally la): 40-60mins/quadrant. Full mouth debridement: 1-2 sessions 60-90mins/half mouth, +/- chx/systemic atb. Fmd: studied utilising very experience operators: equally effective as csd, some reports of febrile systems, tmd reported because of time opened. Root surface debridement: intellectually simple, technically difficult/time consuming. Practically: measure results vs known results, continually reassess. Inexperienced operators remove less subgingival calculus & biofilm. Scaling & root planing vs root surface debrdement. Lps found to be cytotoxic to gingival fibroblasts. *99% lps removable by gentler procedures, suggests effective root surface debridement by methods other than traditional hand instrumentation.