金属预成冠修复乳磨牙缺损的临床应用

李燕　宋光泰

[摘要] 目的 探讨金属预成冠修复技术治疗儿童乳磨牙缺损的效果。 方法 在我院收治的乳磨牙缺损患儿中随机抽取107例作为研究对象，根据选择的治疗方法不同将其分为观察组和对照组，其中对照组患儿采用光固化树脂填充修复，观察组患儿采用金属预成冠直接修复，统计两组患儿的治疗效果指标并进行对比。 结果 观察组患儿的修复密合度优于对照组（P<0.05）；而在牙龈指数上，两组对比差异不明显，且治疗前后对比差异不明显（P>0.05）。 结论 在儿童乳磨牙缺损的修复治疗中，金属预成冠修复效果显著，有助于最大限度恢复乳磨牙正常的解剖外形、牙颌关系以及咀嚼功能，提高患儿的生活质量，且应用非常简单，值得推广。

[关键词] 金属预成冠；乳磨牙缺损；密合度；牙龈指数

[中图分类号] R783.3 [文献标识码] B [文章编号] 1673-9701（2017）03-0049-03

Clinical application of metal preformed crowns in repairing the defect of primary molar teeth

LI Yan1，2 SONG Guangtai1

1.Hospital of Stomatology， Wuhan University， Wuhan 430070， China； 2.Hospital of Stomatology of Lanzhou City， Lanzhou 730000， China

[Abstract] Objective To explore the effect of metal preformed crown repair technique in the treatment of children's primary molar defects. Methods 107 cases of children with primary molar teeth defects who were admitted and treated in our hospital were randomly selected as the study subjects. According to different selections of treatment methods， the patients were divided into observation group and control group. The control group was given the repair by filled light-cured resin， and the children in the observation group were treated with direct repair of metal preformed crowns. The therapeutic effects of the two groups were statistically analyzed and compared. Results The repair adaptation in the observation group was better than that in the control group（P<0.05）； as for the gingival index， the difference between the two groups was not significant， and the difference was not significant before and after the treatment（P>0.05）. Conclusion In the repair and treatment of children's primary molar defects， the effect of metal preformed crown restoration is significant， which can help to restore the normal anatomical appearance， tooth-jaw relationship and chewing function of the primary molars to the maximum degree， and improve the quality of life of children. It is also very easy to be operated， which is worthy of promotion.

[Key words] Metal preformed crown； Molar teech defect； Adaptation； Gingival index

兒童乳磨牙缺损是一种常见疾病，发病率较高，在临床上多表现为大面积缺损[1]。在临床治疗中，过去多采用银汞合金、树脂等材料进行修复，由于缺损面积较大，所以很难恢复乳磨牙正常的解剖外形以及与邻牙之间的衔接关系，即使进行充填修复，也很难恢复正常的咀嚼功能[2，3]。另外，还存在充填物脱落等风险，治疗效果不佳[4]。在临床治疗中，对缺损的乳磨牙进行全面完整的修复是治疗成功的保障。近些年来，我院应用金属预成冠修复取得满意效果，现报道如下。

1 资料与方法

1.1 一般资料

从我院2012年8月～2015年12月间收治的乳磨牙缺损患儿中随机抽取107例作为研究对象。排除标准：①牙齿松动、牙周炎症、咬合关系异常的患儿；……