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目的比较纤维桩复合树脂核+氧化锆全瓷冠和铸造Ni-Cr合金桩核+烤瓷冠行前牙缺损修复的临床效果。方法对口腔门诊86例患者的132颗前牙缺损,随机分为A、B两组,每组各66颗牙根,已行根管充填术。根管预备后,A组行纤维桩复合树脂核+氧化锆全瓷冠修复,B组行铸造Ni-Cr合金桩核+金属烤瓷冠行修复。随访12～36个月,观察效果。结果两组结果比较,A组有效率92.42%,B组有效率83.33%,A组无论在美观、固位和功能上均优于B组。结论纤维桩复合树脂核+氧化锆全瓷冠修复前牙缺损明显优于铸造Ni-Cr合金桩核+金属烤瓷冠,尤其适用于死髓牙的修复,可增加瓷层的厚度,避免裂瓷,减少根折,或根折后为再次修复提供机会,减少牙周病的发生及龈缘返青,具有透光性,使修复后的牙齿色泽更加美观、自然。
Objective To compare the clinical effects of fiber post composite resin core + zirconia all-ceramic crowns and cast Ni-Cr alloy post core + porcelain fused anterior teeth defect. Methods A total of 132 anterior dental defects of 86 patients in the oral clinic were randomly divided into two groups A and B, with 66 teeth in each group. They were performed root canal filling. After root canal preparation, group A was repaired by fiber post composite resin core + zirconia all-ceramic crown, group B was cast by Ni-Cr alloy post core + metal porcelain crowns. Follow-up 12 to 36 months, the effect was observed. Results The results of two groups were compared. The effective rate was 92.42% in group A and 83.33% in group B, which was superior to group B in terms of appearance, retention and function. CONCLUSION: The restoration of anterior teeth defect with fiber post composite resin core + zirconia all-ceramic crowns is better than casting Ni-Cr alloy post core + metal porcelain crowns, especially for repairing dead tooth, increasing the thickness of the porcelain layer and avoiding splitting Porcelain, reduce the root fracture, or root fracture provides the opportunity for re-repair to reduce the occurrence of periodontal disease and gingival margin, with translucency, so that the color of the teeth after repair more beautiful and natural.