A comparative study of crestal bone loss and implant stability between osteotome and conventional implant insertion techniques: a randomized controlled clinical trial study.
A comparative study of crestal bone loss and implant stability between osteotome and conventional implant insertion techniques: a randomized controlled clinical trial study.
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DOI：
10.1111/j.1708-8208.2011.00376.x
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发表时间：
2013-06
影响因子：
3.6
通讯作者：
Y. Shayesteh;A. Khojasteh;H. Siadat;A. Monzavi;S. Bassir;M. Hossaini;M. Alikhasi
中科院分区：
文献类型：
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作者：
Y. Shayesteh;A. Khojasteh;H. Siadat;A. Monzavi;S. Bassir;M. Hossaini;M. Alikhasi
目的：本前瞻性随机对照临床研究的目的是评估骨切开术与常规钻孔技术放置种植体的牙冠骨丢失和种植体稳定性。材料与方法采用Straumann AG， Waldenburg， Switzerland公司生产的46颗螺钉型Straumann SLA®口腔种植体植入30例患者的上颌前段。采用成骨技术（试验组）和常规钻孔技术（对照组）随机制备种植体部位。记录植入时和植入后3个月的射频分析（RFA）值。在3、6、12个月后用数字减影x线摄影技术测量牙冠骨损失。结果RFA显示植骨组植体在植入时的初始稳定性高于常规组（p= 0.026），具有统计学意义。但术后3个月两组间差异无统计学意义（p= 0.06）。第3个月时，截骨组牙冠骨丢失明显多于常规组（p= 0.04）。在第6个月和第12个月，两组的骨水平相当（p= 0.29）。结论取骨术比常规钻孔术具有更高的初稳定性。然而，3个月后，该技术并不优于常规技术。
PURPOSE The aim of this prospective randomized controlled clinical study was to assess the crestal bone loss and the implant stability in implants that were placed by the osteotome technique compared with the conventional drilling technique. MATERIALS AND METHODS Forty-six screw type Straumann SLA® oral implants (Straumann AG, Waldenburg, Switzerland) were inserted in the anterior segment of maxilla of 30 patients. The implant site was prepared randomly using either osteotome technique (test group) or the conventional drilling technique (control group). Radio frequency analysis (RFA) values at implant placement and after 3 months were recorded. The crestal bone loss was measured using digital subtraction radiography technique after 3, 6, and 12 months. RESULTS RFA demonstrated a statistically significant higher primary stability for implants in the osteotome group than that of the conventional group (p=.026) at the time of implant insertion. However, there was no statistically significant difference between both groups 3 months after the surgery (p=.06). At month 3, the osteotome group caused significantly more crestal bone loss than the conventional group (p=.04). At months 6 and 12, both groups had comparable bone levels (p=.29). CONCLUSION Osteotome technique yielded higher primary stability than conventional drilling technique. However, this technique was not superior to conventional technique after 3 months.