Abstract: Objective: To explore the objective factors that influence the facial esthetic satisfaction of edentulous patients with complete denture. Methods: 20 edentulous subjects were randomly selected. Before complete denture treatment and three months after treatment, patients were asked to complete the orofacial esthetic questionnaire, and 3D stereophotogrammetry was performed to evaluate the changes in facial appearance. Furthermore, the correlations between orofacial esthetic scores and facial features were assessed. Results: After complete denture treatment, esthetic scores of face and profile were increased from 5.87 ± 0.79 and 5.83 ± 0.84 to 8.74±0.54 and 8.94±0.46, respectively. Sn-Gn (Lower face height), Sn-St (Nose-interlabial) and St-Gn (Interlabial-chin) increased from (59.77±4.14) mm, (23.27±2.48) mm and (36.70±3.00) mm to (62.01±3.89) mm, (24.29±2.51) mm and (38.15±2.84) mm, respectively, moreover, all differences were significantly（P＜0.001）. However, no obvious difference was observed in the height and morphology of midfacial region. 3 months after treatment,∣(G-Sn / Sn-Gn)-average∣decreased from 11.43±7.58% to 7.49±5.90%, nasolabial angle reduced from 118.98°±12.83°to 112.20°±10.29°, while∣nasolabial angle-average∣lessened to 15.24°±8.81° from 22.17°±10.84°. These changes were statistically significant. In addition, the results of correlation analysis showed that the orofacial esthetic scores were highly or moderately correlated with the differences between edentulous subjects and normal population in the facial proportion and nasolabial angle（P＜0.01）. Conclusion: The subjective aesthetic scores of edentulous patients were highly correlated with the changes of facial proportion and nasolabial angle. Therefore, in the restoration of complete denture, the appropriate upper lip fullness and facial proportion should be restored as much as possible to achieve good results in aesthetic reconstruction.

Key words: edentulous jaw, complete denture, orofacial esthetics, 3D stereophotogrammetry