Abstract: PURPOSE: To evaluate the red and white aesthetic effect of porcelain veneer in the restoration of developmental anterior interdental spaces. METHODS: A total of 152 anterior teeth in 64 patients with developmental anterior dental gaps were restored using porcelain veneers, the aesthetic effects before and after restoration were evaluated by pink aesthetic index (PES) and white aesthetic index(WES), the aesthetic effect of gingival papilla filling and reconstruction was evaluated by interdental gingival papilla index (PIS), and visual analogue score (VAS) was used to compare the satisfaction of patients before and after restoration. SPSS 203.0 software package was used for statistical analysis. RESULTS: The overall mean scores of PES before and after restoration of 152 developmental anterior interdental teeth were 9.63±2.23 and 13.64±0.88, respectively. The average scores of WES before and after restoration were 6.85±1.87 and 9.81±0.58, respectively. There were significant differences of PES and WES scores before and after restoration(P<0.01). According to the requirements of "near" perfect restoration(PES≥13 points, WES≥9 points), the red and white aesthetic effect after restoration was near the standard. The scores of PIS before and after restoration were 1.86±0.67 and 2.97±0.18, the interdental gingival papilla was completely filled with space, and the shape was ideal, there were significant statistical differences before and after restoration(P<0.01). Patients were more satisfied with the smile curve and morphology of the restored anterior teeth than other parameters. CONCLUSIONS: The aesthetic effect of using porcelain veneers to repair developmental anterior interdental gaps is ideal, among which the filling of the papillae between the teeth can meet the expectations of patients, and the aesthetic effect evaluation of PIS and PES/WES applied to porcelain veneers to repair developmental anterior interdental spaces has practical guiding significance in clinical practice.

Key words: Anterior diastemata, Porcelain veneers, Pink esthetic score, White esthetic score, Papilla index score