Clinical Research of Polymeric Ceramic Inlay Restoration of Vital Pulp Posterior Teeth With Big Dentin Defect

Objective: To study clinical effect of polymeric ceramic inlay restoration of vital pulp posterior teeth with big dentin defect(BDD). Methods: From June 2009 to June 2011, patients in our hospital tooth defect of posterior were greater than 1 teeth cusp had 80 cases, a total of 87 teeth. Digital randomly divided into the treatment group(41 cases, 46) and the control group(39 cases, 43). The control group used with onlays regimen, while the treatment group used with polymer ceramic inlays, compared two groups of one week and one year after the restoration evaluations. Results: After one week of treatment, the treatment group in aesthetics was significantly better than control group. Difference was statistically significant(u= 2.038, P 0.05), comparing the two groups with sensitive and periodontal status and other data. The difference was not statistically significant(u= 1.132, 1.389, all P 0.05). 1 year after treatment, the rank sum test, the treatment group's aesthetic and restoration fracture was significantly better than the control group. Difference was statistically significant(u = 3.138, 2.874, all P 0.05). The two groups' comparison in secondary caries and marginal discoloration, as well as the adjacent shoulder fit and periodontal status and other aspects. The difference was not statistically significant(u = 1.132, 1.374, 1.454, 1.268, 1.366, all P 0.05). Conclusion: Polymeric ceramic inlay restoration of vital pulp posterior teeth with BDD's repairing effect is more significant, patients can resume a greater degree of tooth function, reduce the incidence of secondary caries. It is not easy to fracture and is more beautiful. It is worthy of recommendation.