氧化锆全瓷和金属烤瓷冠修复前牙缺损的效果对比分析

Comparative analysis of effects of zirconia all-ceramic crowns and porcelain-fused-mental crowns in the repair of anterior teeth defects

目的比较氧化锆全瓷和金属烤瓷冠修复在前牙缺损治疗中的疗效差异。方法选择2014年4月~2017年4月在我科行前牙缺损修复治疗的134例患者为研究对象,按照随机数表法分为氧化锆全瓷修复组(治疗组)76例和金属烤瓷冠修复组(对照组)58例。比较治疗前、治疗半年后两组患者咀嚼功能(咀嚼效率、咬合力)差异,治疗半年后修复效果[美国公共卫生署标准(USPHS)评分(修复体形态、修复体颜色、边缘密合度、边缘着色)]、牙周健康指标[菌斑指数(PLI)、牙周袋深度(PD)、牙龈指数(GI)、附着丧失(AL)]及并发症(修复体断裂、牙龈炎、继发龋)发生率的差异。结果治疗半年后,两组咀嚼效率和咬合力均较治疗前明显提高,且治疗组显著高于对照组(P<0.05)。治疗半年后,两组患者USPHS各项评分差异明显,治疗组修复体形态、修复体颜色、边缘密合度、边缘着色均显著优于对照组(P<0.05);治疗组患者PLI、PD、GI、AL水平均低于对照组(P<0.05);治疗组并发症总发生率明显低于对照组(P<0.05)。结论氧化锆全瓷修复治疗前牙缺损疗效明显好于金属烤瓷冠修复,其修复治疗效果好、能显著提高患者咀嚼功能,且对牙周组织损伤较小、并发症少。

Objective To compare the efficacy of zirconia all-ceramic crowns and porcelain-fused-metal crowns in the repairof anterior teeth defects. Methods 134 cases of patients with anterior teeth defects repair in our department from April 2014 to April2017 were selected for the study and were divided into zirconia all-ceramic crowns repair （treatment group, n=76） and porcelainfused-mental crowns repair group （control group, 58 cases） according to the random number table method. The masticatory function（masticatory efficiency, occlusal force） before treatment and after 6 months of treatment, and the repair effects [United States PublicHealth Service （USPHS） score （restoration morphology, restoration color, marginal discrepancy, edge coloring）], periodontal healthindicators [plaque index （PLI）, probing depth （PD）, gingival index （GI）, attachment loss （AL）] and incidence rates of complications（restoration fractures, gingivitis, secondary caries） after 6 months of treatment were compared between the two groups. Results After6 months of treatment, the mastication efficiency and occlusal force in the two groups were significantly higher than those beforetreatment, and the two indexes in treatment group were significantly higher than those in control group （P 〈 0.05）. After 6 monthsof treatment, the scores of items of USPHS scale were significantly different in the two groups, and the restoration morphology,restoration color, marginal discrepancy and edge coloring in treatment group were significantly better than those in control group （P〈 0.05）. The levels of PLI, PD, GI and AL in treatment group were lower than those in control group （P 〈 0.05）. The total incidencerate of complications in treatment group was significantly lower than that in control group （P 〈 0.05）. Conclusions Zirconia allceramiccrowns repair has significantly better efficacy than porcelain-fused-mental crowns repair in anterior teeth defects, and it hasa good repair effects, and can significantly improve masticatory function, and has less damage to periodontal tissues and has fewer complications.