McArdle Louis W, McDonald Fraser, Jones Judith
Department of Oral Surgery, KCL Dental Institute, Guy's & St Thomas's NHS Foundation Trust, Great Maze Pond, London SE1 9RT, United Kingdom.
Department of Orthodontics, KCL Dental Institute, Guy's & St Thomas's NHS Foundation Trust, Great Maze Pond, London SE1 9RT, United Kingdom.
Br J Oral Maxillofac Surg. 2014 Feb;52(2):185-9. doi: 10.1016/j.bjoms.2013.11.007. Epub 2013 Dec 7.
In 2005 we reported the clinical findings of 100 patients who had mandibular third molars removed because of distal cervical caries in the mandibular second molar. The aim of this follow-up study was to find out whether the findings in a new group of patients corroborate those of our previous study. We report on the clinical features of 239 patients (mean (SD) age 32.1 (7.85) years, range 20-65) who had 288 mandibular third molars removed because of distal cervical caries in the second molar. Patients had better dental health than average, and 67% had a DMF (decayed, missing, or filled) score of 5 or less. In 89% of third molars the mesial angulation was between 40° and 80°. Distal cervical caries in second molars is a late complication of third molar retention. The prophylactic removal of a partially erupted mesioangular third molar will prevent distal cervical caries forming in the second molar tooth.
2005年，我们报告了100例因下颌第二磨牙远中颈部龋而拔除下颌第三磨牙患者的临床研究结果。本次随访研究的目的是探究一组新患者的研究结果是否与我们之前的研究结果相符。我们报告了239例患者（平均（标准差）年龄32.1（7.85）岁，范围20 - 65岁）的临床特征，这些患者因第二磨牙远中颈部龋而拔除了288颗下颌第三磨牙。患者的口腔健康状况优于平均水平，67%的患者龋失补牙（DMF）指数为5或更低。89%的第三磨牙近中倾斜角度在40°至80°之间。第二磨牙远中颈部龋是第三磨牙阻生的晚期并发症。预防性拔除部分萌出的近中倾斜第三磨牙可防止第二磨牙形成远中颈部龋。
