Ondokuz Mayis Üniversitesi, Diş Hekimliği Fakültesi, Samsun, Turkey.
Med Oral Patol Oral Cir Bucal. 2011 Nov 1;16(7):e874-8. doi: 10.4317/medoral.17094.
The purpose of the present study was to retrospectively analyze 170 case series of patients with 200 impacted first and second permanent molars.
Records of 104.408 patients were retrospectively screened in this multicenter study. The chosen study population consists of 170 patients who presented with impacted or retained first and second permanent molar. All patients with impacted first or second permanent molar had undergone clinical and radiographic examinations. The following factors were analyzed: age and gender, frequency, distribution, location, position, the number of impacted tooth, primary and secondary retention, degree of infraocclusion, associated pathologic conditions and treatment method.
There were a total of 170 patients (male: 91, female: 79, mean ages 22.69 ± 8.99 years ranging from 13 to 66 years of age) with 200 retained or impacted permanent molars in 104.408 patients. In this study, 200 impacted teeth which were analyzed were 125 molars (62.5%) vertical position, 17 (8.5%) horizontal, 38 (19%) mesioangular, 12 (6%) distoangular, and 7 (3.5%) buccolingual inclination There were 52 primarily retained (26%) and 32 secondarily retained (16%) molars. 137 (68.5%) molars were asymptomatic. Cystic formation was present in 13 (6.5%) cases.
Although the impactions of first and second permanent molars do not occur frequently, it is important to make an early diagnosis in order to start treatment at the optimal time.
本研究旨在回顾性分析 170 例 200 颗埋伏阻生的第一和第二恒磨牙患者的病例系列。
本多中心研究回顾性筛选了 104408 例患者的记录。所选研究人群由 170 例因埋伏或滞留的第一和第二恒磨牙就诊的患者组成。所有埋伏的第一或第二恒磨牙患者均接受了临床和影像学检查。分析了以下因素：年龄和性别、频率、分布、位置、位置、埋伏牙数量、原发性和继发性滞留、低位程度、相关病理情况和治疗方法。
共有 170 例患者（男性 91 例，女性 79 例，平均年龄 22.69±8.99 岁，年龄 13-66 岁）在 104408 例患者中出现 200 颗滞留或埋伏的恒磨牙。在本研究中，分析的 200 颗埋伏牙中，125 颗（62.5%）为垂直位，17 颗（8.5%）为水平位，38 颗（19%）为近中角形，12 颗（6%）为远中角形，7 颗（3.5%）为颊舌向倾斜。有 52 颗（26%）为原发性滞留，32 颗（16%）为继发性滞留。137 颗（68.5%）磨牙无症状。13 例（6.5%）出现囊性形成。
尽管第一和第二恒磨牙的埋伏阻生并不常见，但早期诊断很重要，以便在最佳时间开始治疗。
