Abstract:

Objective: To observe and analyze the clinical effect of single-retainer cantilever resin-bonded bridge in replacing single anterior tooth missing. Methods: Twenty single-retainer cantilever resin-bonded bridges were fabricated for single anterior tooth missing，and they were evaluated 6，12，24 and 36 months after restoration using the clinical evaluation criteria set by the American Public Health Association (APHA). At the same time, the periodontal indexes of the abutment tooth and the adjacent teeth before and after restoration were recorded to analyze the influence of the restoration on periodontal condition of the abutment teeth, and the VAS of patient satisfaction was quantified. Results: In 20 cases of single retainer cantilever resin-bonded bridge, no debonding or fracture occurred during 36 months of repair period. 1 case was classified as grade B due to edge coloring and the rest were graded. A 24 months after repair; 36 months after the completion of the restoration, 3 cases were classified as grade B due to edge coloring, and the rest were grade A. The patients' satisfaction with the restoration effect was 100%, and there was a significant difference in patients' satisfaction with the status of missing tooth area before and after restoration (P＜0.05). And there was no significant difference in the periodontal indexes of the abutment tooth before and after restoration (P＞0.05). Conclusions: For patients with single anterior tooth missing, using a single retainer cantilever resin-bonded bridge for restoration can obtain a relatively stable restoration results.