Oral and Maxillofacial Surgery, Matsumoto Dental University School of Dentistry, Shiojiri, Nagano, Japan.
Int J Gen Med. 2009 Jul 30;2:67-72. doi: 10.2147/ijgm.s5022.
Acute inflammation is frequently seen in the elderly around incompletely impacted molars located apart from molars or premolars. To identify the factors causing acute inflammation in the solitary molars without second molars or without second and first molars, ages of patients and rates of acute inflammation in 75 horizontal incompletely impacted mandibular molars in contact or not in contact with molars in subjects 41 years old or older were studied using orthopantomographs. Acute inflammation was seen in nine third molars out of 48 third molars in contact with second molars (18.8%), whereas acute inflammation was seen in 11 molars out of 19 solitary molars without second molars or without first and second molars (57.9%) (p < 0.01). The mean age of 48 subjects with third molars in contact with the second molar was 50.42 +/- 7.62 years, and the mean age of 19 subjects with isolated molars was 65.16 +/- 10.41 years (p < 0.0001). These indicate that a solitary horizontal incompletely impacted molar leads more frequently to acute inflammation along with aging due to possible bone resorption resulting from teeth loss.
老年人中经常会出现未完全萌出的磨牙周围的急性炎症，这些磨牙与磨牙或前磨牙分开。为了确定导致无第二磨牙或无第二和第一磨牙的孤立磨牙发生急性炎症的因素，使用全景片研究了 41 岁及以上患者中 75 颗水平未完全萌出下颌磨牙与磨牙接触或不接触的情况下，患者年龄和急性炎症发生率。在与第二磨牙接触的 48 颗第三磨牙中有 9 颗（18.8%）出现急性炎症，而在无第二磨牙或无第一和第二磨牙的 19 颗孤立磨牙中有 11 颗（57.9%）出现急性炎症（p < 0.01）。与第二磨牙接触的 48 名患者中第三磨牙的平均年龄为 50.42 +/- 7.62 岁，无第二磨牙或无第一和第二磨牙的 19 名患者中孤立磨牙的平均年龄为 65.16 +/- 10.41 岁（p < 0.0001）。这表明，由于牙齿缺失可能导致的骨质吸收，随着年龄的增长，孤立的水平未完全萌出的磨牙更容易导致急性炎症。
