title: Assessment of plaque by image analysis.
abstract: The uneven distribution and pattern of staining, revealed on root-planed, periodontally-involved root surfaces by the application of a plaque-disclosing solution, precludes the use of conventional plaque scoring indices or other methods of assessment based on planimetric and gravimetric techniques. A method has been developed and evaluated to quantify stained areas using image analysis. The method is reproducible, with an error factor of 1.32%, and represents a comparatively simple, yet effective technique for quantifying plaque on irregular root surface areas.
mesh_terms: D003773:Dental Plaque / Q000175:diagnosis*; D003774:Dental Plaque Index; D012534:Dental Scaling; D005840:Gentian Violet; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation / Q000379:methods*; D013690:Television / Q000295:instrumentation; D014092:Tooth Root / Q000601:surgery
chemical_list: D005840:Gentian Violet