J Dent:非桩核方法修复后牙严重缺损:一项对嵌体冠修复病例10年的回顾性研究

2017-05-07 lishiting MedSci原创

这篇研究的目的:(1)回顾性评估有记录的利用即刻牙本质封闭(IDS)技术完成的陶瓷复合嵌体冠修复病例;(2)分析临床参数找出治疗失败原因,包括:牙体预备特性和咬合不利因素。

这篇研究的目的:(1)回顾性评估有记录的利用即刻牙本质封闭(IDS)技术完成的陶瓷复合嵌体冠修复病例;(2)分析临床参数找出治疗失败原因,包括:牙体预备特性和咬合不利因素。

研究分析了99例有记录的嵌体冠修复病例,并在平均观察期为44.7±34.6个月后进行评估。按照剩余牙体组织缺损水平在预备后的功能进行修复分级:1-3级。评估按照FDI标准和牙髓治疗效果进行分析。对修复材料碎裂的病例进行金属断面显微镜观察,并评估其咬合风险因素。

结果显示,48.4%的患者存在着一定的咬合风险因素。75.8%的治疗按照修复等级被评为3级。进行修复的患牙中,56.6%为磨牙, 41.4%为前磨牙,2.0%为尖牙。84.8%的修复病例使用的是锂-二硅酸玻璃陶瓷,12.1%使用的是聚合物渗透陶瓷网(PICN)材料。嵌体冠的保存率和成功率分别为99.0%和89.9%,而按照Kaplan-Meier评估的10年保存率和成功率则分别为98.8%和54.9%。治疗失败原因:牙周病(n=3),嵌体冠分离(n=2),小碎片(n=2),继发龋(n=2)和冠断裂(n=1)。对这些病例进行分析,未发现临床参数与失败原因之间存在明显的相关性。

结论:尽管存在较大面积的冠组织缺损或咬合风险因素,如夜磨牙和不利的咬合关系,但嵌体冠依旧是严重缺损磨牙和前磨牙的可靠修复方式。

临床意义:口腔医师应该考虑使用嵌体冠代替桩核方式修复严重非全部冠缺损的后牙。这种微创解决方案可以降低意外失败的风险,并且简化操作。另外,使用IDS技术和锂-二硅酸玻璃陶瓷作为修复材料可得到较好的治疗效果。

原始出处

Belleflamme MM, Geerts SO, et al. No post-no core approach to restore severely damaged posterior teeth: An up to 10-year retrospective study of documented endocrown cases. J Dent. 2017 Apr 26. pii: S0300-5712(17)30093-3. doi: 10.1016/j.jdent.2017.04.009.

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    2017-10-19 yese
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    2017-05-08 大爰

    学习并分享!!

    0

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    2017-05-08 天涯183

    非常好的文章,学习了,很受益

    0

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    2017-05-07 szc1181881761

    优秀资料,学习了。

    0