Private Kılınç Dental Clinic, 25040, Erzurum, Turkey.
Private Zoom Dental Clinic, 06530, Ankara, Turkey.
Head Face Med. 2023 Mar 25;19(1):13. doi: 10.1186/s13005-023-00351-8.
The periodontal status and distal bone level of the adjacent second molar can be negatively affected by the surgical extraction of an impacted lower third molar. Absorbable materials have some benefits, including enhancing primary wound coverage and promoting wound healing through isolation, clotting, wound stabilization and haemostasis. This study set out to compare primary and secondary healing and collagen-membrane-based primary healing after surgical removal of partially erupted impacted third molars (3Ms), evaluating the distal alveolar bone level (ABL) and periodontal status of the adjacent second molars (2Ms).
Patients who met the inclusion criteria were randomized into three groups: secondary healing (n = 28), primary healing (n = 27) and membrane-based primary healing (n = 29). Digital panoramic radiographs were obtained preoperatively (T1) and three months postoperatively (T2). The distances between the cemento-enamel junctions and the alveolar bone crests on the distal aspects of the adjacent 2Ms were measured using calibrated radiograph measurement software. The pocket depth and plaque index measurements were performed preoperatively and three months postoperatively. The periodontal plaque index (PPI) scores were registered on the distal aspects of the 2Ms, and the mean values were used.
Three of the applied healing types positively affected periodontal pocket depth (PPD) and periodontal index values (p < 0.05). In terms of the ABL of the adjacent 2Ms, primary healing (p < 0.05) and membrane-based primary healing (p < 0.05) had superior results to secondary healing.
Membrane use is promising for the distal bone gain and periodontal status of the adjacent 2M.
This clinical study was registered by the Australian New Zealand Clinical Trials Registry, with the trial number ACTRN12618001551280.
下颌阻生第三磨牙的外科拔除会对相邻第二磨牙的牙周状况和远中牙槽骨水平产生负面影响。可吸收材料具有一些优势，包括通过隔离、凝血、伤口稳定和止血来增强初次伤口覆盖并促进伤口愈合。本研究旨在比较部分萌出下颌阻生第三磨牙（3M）外科切除后的初次和二期愈合以及基于胶原膜的初次愈合，评估相邻第二磨牙（2M）的远中牙槽骨水平（ABL）和牙周状况。
符合纳入标准的患者被随机分为三组：二期愈合组（n=28）、初次愈合组（n=27）和基于膜的初次愈合组（n=29）。术前（T1）和术后三个月（T2）获得数字全景片。使用校准的放射测量软件测量相邻 2M 远中牙槽骨嵴的牙釉质-牙骨质交界处和牙槽骨嵴之间的距离。术前和术后三个月进行牙周袋深度和菌斑指数测量。在 2M 的远中部位记录牙周菌斑指数（PPI）评分，并使用平均值。
三种愈合方式均对牙周袋深度（PPD）和牙周指数值有积极影响（p<0.05）。就相邻 2M 的 ABL 而言，初次愈合（p<0.05）和基于膜的初次愈合（p<0.05）优于二期愈合。
膜的使用对于相邻 2M 的远中骨量增加和牙周状况有一定的前景。
本临床研究由澳大利亚和新西兰临床试验注册中心注册，注册号为 ACTRN12618001551280。
