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J Periodontol:Apico-Coronal种植体位置对手术后人牙槽嵴骨缺失的影响

2017-04-23 lishiting MedSci原创

一直以来,Apico-Coronal种植体植入位置对牙槽嵴骨水平的影响存在争议。

一直以来,Apico-Coronal种植体植入位置对牙槽嵴骨水平的影响存在争议。

这项研究是通过分析18岁以上患者完成牙科种植治疗的病例实现的。研究记录了患者的个人信息以及用药、手术和修复相关内容。种植体周围骨水平分别在种植前、种植体暴露、修复完成和种植后3-6个月、7-11个月和12-18个月进行评估。

研究结果包含了55名患者病例以及134颗种植体。按照种植体位置平行于牙槽嵴、低于牙槽嵴和高于牙槽嵴进行统计。在最初植入时,种植体近中面位置平行于牙槽嵴的个数占19.5%,低于牙槽嵴的占67.3%,高于牙槽嵴的占13.3%;种植体远中面位置分别占32.1%、50%和17.9%。在完成修复时,种植体在近中面位置平行于牙槽嵴的病例数占35.4%,低于牙槽嵴的占17.7%,高于牙槽嵴的占46.9%;远中面位置分别占28.4%、21.1%和50.5%。与种植前相比较,植入后的种植体在3-6个月、7-11个月和12-18个月的近中面,7-11个月和12-18个月的远中面,以及糖尿病患者的近远中面,其位置要明显高出牙槽嵴。而在随访过程中,低于牙槽嵴的植入体位置存在明显差异,这是因为一方面最初的种植位置低于牙槽嵴,另一方面牙槽嵴骨缺失的测量作为最初种植体植入位置的确定存在一定的差异(平行、低于和高于牙槽嵴)。另外,低于牙槽嵴的植入体位置在3-6、7-11、12-18个月的时间节点上在各组间未发现明显不同。

结论:虽然,低于牙槽嵴的植入体位置与平行或高于牙槽嵴相比会减少种植体周围牙槽嵴骨吸收。但是,手术时低于牙槽嵴的植入位置会降低种植体螺纹暴露于口腔的几率。

原始出处

Ercoli C, Jammal G, et al. The Influence of Apico-Coronal Implant Placement on Post-Surgical Crestal Bone Loss in Humans. J Periodontol. 2017 Apr 7:1-14. doi: 10.1902/jop.2017.160802.

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    2018-04-02 kksonne
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    2017-07-22 huangdf
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    2017-05-04 feather89
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    2017-05-07 cy0324
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