Association of crown emergence angle and profile with dental plaque and inflammation at dental implants

• DOI: 10.1111/clr.14134
• Publication Date: 2023-07-18T03:45:49Z
• Authors: George Pelekos; Bonnie Chin; Xinyu Wu; Melissa R. Fok; Junyu Shi; Maurizio S. Tonetti
• Keywords: Bleeding on probing; Gingival margin; Dental plaque; Gingival inflammation

Abstract Background The shape of implant restorations is critical for function and aesthetics. It may also be important in peri‐implant tissue health preservation. This study aimed to associate the restorative contour a single crown with marginal dental plaque accumulation, inflammation probing depths. Methods Subjects screw‐retained restoration were clinically examined. presence biofilm, pocket depths dependent variables. emergence angle, profile depth mucosal tunnel measured on superimposed digital scans soft‐tissue complex, removed mounted an analogue soft tissue. Results One hundred twenty two subjects (46.7% female, 68.9% never smokers, 77% treated periodontitis 52.5% participating regular supportive care) angles at margin 15.3 ± 9.4°, 12.7 8.5°, 31.3 11.8° 19.2 9.8° mesial, distal, vestibular oral aspects crowns. largest observed aspect (74.6% cases), reaching maximum 61.7°, profiles convex 59% cases. Generalized estimating equations indicated that site‐specific platform‐level angle significantly associated detectable accumulation ( p < .01) bleeding .02). Conclusions Subtle variations are biofilm inflammation. These findings 3D planning/positioning preservation health.