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目的比较常规银汞合金充填、银汞合金粘接充填、瓷化树脂充填磨牙邻面Ⅱ类洞的临床效果。方法将350例465颗邻面Ⅱ类洞的磨牙随机分为A、B、C 3组,分别采用常规银汞合金充填、银汞合金粘接充填和瓷化树脂充填,修复后1、3年进行复查。结果 A组、B组和C组1年后充填成功率分别为98.00%、100.00%、100.00%,3年后成功率分别为71.33%、85.71%、97.32%。3年后在密合度方面,B组优于A组(χ2=6.02,P=0.014),C组优于A组(χ2=19.98,P=0.000)和B组(χ2=5.19,P=0.026);牙髓炎发生率,A组高于B组(χ2=4.50,P=0.034)和C组(χ2=7.12,P=0.015),差异有统计学意义;充填体破损率,A组高于C组(χ2=8.17,P=0.007),B组高于C组(χ2=7.27,P=0.007),差异有统计学意义。结论瓷化树脂用于磨牙邻面Ⅱ类洞的充填效果最佳,银汞合金粘接充填优于常规银汞合金充填。
Objective To compare the clinical effects of conventional amalgam filling, silver-amalgam bonding filling and porcelain resin filling on the type Ⅱ cavities adjacent to the molars. Methods Three hundred and fifty five 465 neoplasms of type Ⅱ cavities were randomly divided into groups A, B and C, respectively. They were filled with conventional amalgam, silver amalgam, and porcelain resin, Year review. Results The success rates of filling in group A, group B and group C after one year were 98.00%, 100.00% and 100.00%, respectively, and the success rates after 3 years were 71.33%, 85.71% and 97.32% respectively. Three years later, in group B was better than group A (χ2 = 6.02, P = 0.014), group C was superior to group A (χ2 = 19.98, P = 0.000) ). The incidence of pulpitis was higher in group A than in group B (χ2 = 4.50, P = 0.034) and in group C (χ2 = 7.12, P = 0.015) In group C (χ2 = 8.17, P = 0.007), group B was higher than group C (χ2 = 7.27, P = 0.007), the difference was statistically significant. Conclusion The best filling effect of porcelain resin on the type Ⅱ cavities in the adjacent face of molars is better than that of conventional amalgam filling.