Effects of crown contour on artificial biofilm removal efficacy with interdental cleaning aids: An in vitro study

Abstract

Objectives: To evaluate the efficacy of various interdental cleaning aids for artificial biofilm removal on different implant-supported crown designs. Methods: Mandibular models with missing first molar were fabricated and installed with single implant analogs and loaded with crowns of different designs (concave, straight, and convex). Artificial biofilm was made with occlusion spray. Thirty volunteers (periodontists, dental hygienists, and laypersons) were asked to clean the interproximal areas. The crowns were unscrewed and photographed in a standardized setting. The outcome was measured by the cleaning ratio which represents the cleaned surfaces in relation to the area of the tested surface. Results: A significant difference in favor of concave crown (p