Abstract:

BACKGROUND: In complete denture repair, it is suggested to fully consult the utilized information of the old denture, which is the key to obtain a good treatment effect.
OBJECTIVE: To investigate the application effect of silicone rubber materials in repair of complete denture.
METHODS: Ten edentulous patients wearing the old dentures for many years, were treated with new complete dentures using the old denture renovated by skilled workers with silicone rubber. Complete denture was prepared with denture lining method on the test teeth in combination with silicone rubber impression material. Repeated measurement analysis of variance was applied to observe the changes of masticatory efficacy of two new dentures before use (the old denture) and 2 weeks, 1 month, 3 months, 6 months after use. Another 10 patients selected according to conventional methods for denture served as the control group.
RESULTS AND CONCLUSION: The treatment and time, as well as the interaction between treatment and time, had statistically significant differences on the masticatory efficiency by test denture (P < 0.01). Compared with control group at the same time point, the masticatory efficiency of experiment group was higher after wearing new dentures for 2 weeks and 1 month (P < 0.05). The masticatory efficiency after wearing new dentures for 2 weeks was significantly improved compared with old dentures (P < 0.01), but was similar to one month after wearing (P > 0.05). By means of the characteristics of silicone rubber materials and the utilized information of old denture, it is feasible to recover high masticatory efficiency of new dentures in the initial phase, and to shorten the adaptation time of patients to new complete dentures.