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首页> 外文期刊>Journal of clinical periodontology >A Randomized comparative clinical study of two surgical procedures to improve root coverage with the acellular dermal matrix graft
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A Randomized comparative clinical study of two surgical procedures to improve root coverage with the acellular dermal matrix graft

机译：两种手术方法改善脱细胞真皮基质移植物根部覆盖率的随机对照临床研究

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摘要

Aim This randomized, controlled, clinical study compared two surgical techniques for root coverage with the acellular dermal matrix graft (ADMG) to evaluate which procedure could provide better root coverage and greater amounts of keratinized tissue. Materials and Methods Fifteen pairs of bilateral Miller Class I or II gingival recessions were treated and assigned randomly to the test group, and the contra-lateral recessions were assigned to the control group. The ADMG was used in both groups. In the control group, the graft and flap were positioned at the level of the cemento-enamel junction (CEJ), and in the test group, the graft was positioned 1 mm apical to the CEJ and the flap 1 mm coronal to the CEJ. The clinical parameters were taken before the surgeries and after 6 months. The gingival recession area, a new parameter, was measured in standardized photographs through a special device and software. Results There were statistically significant differences favouring the proposed technique for all parameters except for the amount of keratinized tissue at 6 months. Conclusions The proposed test technique is more suitable for root coverage procedures with ADMG, and the new parameter evaluated appears valuable for root coverage analysis. (Clinicaltrials.gov Identifier: NCT01175720).
机译：目的这项随机对照临床研究比较了两种手术技术与无细胞真皮基质移植物（ADMG）的根部覆盖，以评估哪种手术方法可以提供更好的根部覆盖和更多的角化组织。材料和方法治疗15对双边的Miller I类或II类双侧牙龈退缩，并随机分配至测试组，而对侧隐窝则分配至对照组。两组均使用了ADMG。对照组中，移植物和皮瓣位于牙釉质-牙釉质交界处（CEJ）的水平，而测试组中，移植物位于CEJ的顶端1 mm，而皮瓣位于CEJ的冠状位置1 mm。临床参数是在手术前和术后6个月获取的。通过专用设备和软件在标准化照片中测量了牙龈退缩区域，这是一个新参数。结果除6个月时角质化组织的数量外，所有参数在统计学上均有利于拟议技术。结论所提出的测试技术更适合使用ADMG进行根覆盖程序，所评估的新参数对于根覆盖分析很有价值。 （Clinicaltrials.gov标识符：NCT01175720）。

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