White Raymond P, Fisher Elda L, Phillips Ceib, Tucker Myron, Moss Kevin L, Offenbacher Steven
Department of Oral and Maxillofacial Surgery, University of North Carolina School of Dentistry, Chapel Hill, NC, USA.
J Oral Maxillofac Surg. 2011 Jan;69(1):92-103. doi: 10.1016/j.joms.2010.07.076. Epub 2010 Nov 2.
To assess the relationship between visible third molars and the periodontal status of teeth more anterior in the mouth from reports that included periodontal probing data for all teeth.
Each of 4 reports that included periodontal probing data, 6 probing sites for all teeth, including third molars collected by trained, clinician examiners, were briefly summarized. The design, strengths, and weaknesses of each of the 4 studies were compared and summarized. A Forest plot was used to combine the findings from the 4 studies comparing the mean second molar probing depth differences in mm by the presence of at least 1 visible third molar or no visible third molar.
A review of the data from 4 reports, 1 from middle-age adults and 3 from young adults, suggested an association between the visible presence of a third molar and increased periodontal probing depths on teeth more anterior in the mouth, predominately the first and second molars. Coupled with the probing depth around the third molars, the result was an expanded surface area at the biofilm-gingival interface.
Although all those with retained third molars are not at increased risk, the summary data we have reported suggest that those with a visible third molar are more likely to have greater periodontal probing depths overall, particularly on second molars, and a greater surface area of the biofilm-gingival interface compared with those with no visible third molar.
根据包含所有牙齿牙周探诊数据的报告，评估可见第三磨牙与口腔中更靠前牙齿的牙周状况之间的关系。
简要总结了4份包含牙周探诊数据的报告，这些报告由训练有素的临床检查人员收集了所有牙齿（包括第三磨牙）的6个探诊位点。对这4项研究的设计、优点和缺点进行了比较和总结。使用森林图合并了4项研究的结果，比较了至少有1颗可见第三磨牙或无可见第三磨牙情况下第二磨牙平均探诊深度的毫米差异。
对4份报告的数据进行回顾，其中1份来自中年成年人，3份来自年轻成年人，结果表明可见第三磨牙与口腔中更靠前牙齿（主要是第一和第二磨牙）牙周探诊深度增加之间存在关联。再加上第三磨牙周围的探诊深度，结果是生物膜-牙龈界面的表面积扩大。
虽然并非所有保留第三磨牙的人风险都会增加，但我们报告的汇总数据表明，与无可见第三磨牙的人相比，有可见第三磨牙的人总体上更有可能有更大的牙周探诊深度，尤其是在第二磨牙上，并且生物膜-牙龈界面的表面积更大。
