Analysis of the socket bone wall dimensions in the upper maxilla in relation to immediate implant placement
Analysis of the socket bone wall dimensions in the upper maxilla in relation to immediate implant placement
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DOI：
10.1111/j.1600-0501.2009.01870.x
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发表时间：
2010-01-01
影响因子：
4.3
通讯作者：
Lang, Niklaus P.
中科院分区：
文献类型：
--
作者：
Huynh-Ba, Guy;Pjetursson, Bjarni E.;Lang, Niklaus P.
背景动物和人类研究表明，即刻将种植体植入拔牙窝并不能防止拔牙后窝的尺寸变化。为了保持牙槽嵴垂直方向的稳定，颊侧骨的最小宽度为1-2 mm。目的确定拔牙区美观区的骨壁尺寸（上颌骨的前牙和前磨牙），并将其与即刻种植体放置相关联。结果93个拔牙点的颊、腭骨壁平均宽度分别为1 mm和1.2mm（P < 0.05）。前牙颊侧骨壁平均宽度为0.8mm，后牙颊侧骨壁平均宽度为1.1mm（P < 0.05）。在前部，87%的颊侧骨壁宽度< 1 mm，3%的颊侧骨壁宽度为2 mm。在后方网站，相应的值分别为59%和9%.ConclusionsIf一个最小的颊骨宽度为2毫米，以保持一个稳定的颊骨壁的标准是有效的，只有有限数量的网站在前上颌骨显示这样的临床情况。数据表明，在上颌前部的大多数拔牙部位，颊壁较薄（< 1 mm）。这反过来意味着，在大多数临床情况下，需要进行增强手术，以获得种植体周围足够的骨轮廓。引用这篇文章：Huynh-Ba G，Pjetursson BE，Sanz M，Cecchinato D，Ferrus J，Lindhe J，Lang NP。上颌牙槽骨壁尺寸与即刻种植体植入的关系分析。临床口腔种植。Res. 21，2010; 37-42.
BackgroundAnimal and human researches have shown that immediate implant placement into extraction sockets failed to prevent socket dimensional changes following tooth extraction. It has been suggested that a minimal width of 1-2 mm of buccal bone is necessary to maintain a stable vertical dimension of the alveolar crest.AimTo determine the dimensions of the bony wall at extraction sites in the esthetic zone (anterior teeth and premolars in the maxilla) and relate it to immediate implant placement.MethodsAs part of an ongoing prospective randomized-controlled multicenter clinical study on immediate implant placement, the width of the buccal and palatal bony walls was recorded at 93 extraction sites.ResultsThe mean width of the buccal and palatal bony walls was 1 and 1.2 mm, respectively (P < 0.05). For the anterior sites (canine to canine), the mean width of the buccal bony wall was 0.8 mm. For the posterior (premolar) sites, it was 1.1 mm (P < 0.05). In the anterior sites, 87% of the buccal bony walls had a width < 1 mm and 3% of the walls were 2 mm wide. In the posterior sites, the corresponding values were 59% and 9%, respectively.ConclusionsIf the criterion of a minimal buccal bone width of 2 mm to maintain a stable buccal bony wall is valid, only a limited number of sites in the anterior maxilla display such a clinical situation. The data suggested that in the majority of extraction sites in the anterior maxilla, thin (< 1 mm) buccal walls were present. This, in turn, means that in most clinical situations encountered, augmentation procedures are needed to achieve adequate bony contours around the implant.To cite this article:Huynh-Ba G, Pjetursson BE, Sanz M, Cecchinato D, Ferrus J, Lindhe J, Lang NP. Analysis of the socket bone wall dimensions in the upper maxilla in relation to immediate implant placement.Clin. Oral Impl. Res. 21, 2010; 37-42.