纵槽横沟____

纵槽横沟固位形修复楔状缺损的效果

http://www.100md.com 《齐鲁医学杂志》 2006年第2期

纵槽横沟,,],纵槽横沟;牙修复体固位;楔状缺损;治疗结果,1资料和方法,2结果,3讨论,[参考文献]

     [摘要] 目的观察纵槽横沟固位形修复楔状缺损的效果。方法选择156例病人426颗楔状缺损患牙，随机分为纵槽横沟固位形组(备洞组)和无固位形组(非备洞组)。备洞组先用裂钻在缺损的切侧壁洞口边缘中段处制作一个斜形漏斗状小槽，再用倒锥钻在缺损的龈壁面制作一个倒凹沟，按常规充填。结果 4年后随访，备洞组的成功率为92.5%，非备洞组的成功率为66.8%，差异有显著性(χ2=24.65,P<0.01)。结论对于楔状缺损，纵槽横沟固位形可有效提高充填后成功率。

    [关键词] 纵槽横沟;牙修复体固位;楔状缺损;治疗结果

    EFFECTS OF SECURING LONGITUDINALSOCKETTRANSVERSE FISSURE FIXTURES ON WEDGESHAPED DEFECT

    LU GUOHUA, YAO FENG

    (Department of Stomatology, Yanbu Hospital, Nanhai District of Foshan, Foshan 538247, China)

    [ABSTRACT]ObjectiveTo investigate the effects of securing longitudinalsockettransverse fissure (LSTF) fixtures on wedgeshaped defect (WSD) rehabilitation.MethodsA total of 426 diseased teeth in 156 patients were randomly assigned to two groups. The patients in the fixture group first underwent groove drilling, and an oblique, funnelshaped groove was then created on the incision wall of each cavity opening. A reverse awl drill was used to create a reverse (upsidedown staircase structure) slot through the damaged tooth surface. Thereafter, the subjects in both groups received fillings with standard procedures. All the patients were followed four years after the treatment. ResultsThe success rate was 92.5% for fixture group, and 66.8% for nonfixture group, the difference was remarkable (χ2=24.65,P<0.01). ConclusionFor WSD, securing LSTF fixtures can effectively raise the success rate of the treatment. ......

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