Azaz B, Shteyer A, Piamenta M
Int J Oral Surg. 1976 Aug;5(4):153-60. doi: 10.1016/s0300-9785(76)80037-3.
Observations were made on 200 impacted mandibular third molars that were removed from 200 unselected patients under local anesthesia. Sixty percent of the teeth were found to be in apparent relationship with the inferior dental canal: 19 % in true relationship and 41 % in superimposition. The vertical impacted molars were mainly found to be in true relationship with the inferior dental canal. On comparison of the clinical postoperative diagnosis with the radiographic preoperative findings an error of only 0.8 % was shown. Most of the molars showed fully developed roots in the third decade of life. Most of the teeth in this series were vertically impacted having mostly fully developed roots. There was a significant correlation between the patients suffering from pain, trismus, and swelling. Swelling and trismus were the mostly affected postoperative sequelae.
对在局部麻醉下从200例未经挑选的患者中拔除的200颗下颌阻生第三磨牙进行了观察。发现60%的牙齿与下牙槽神经管存在明显关系：19%为真正相关，41%为重叠关系。垂直阻生磨牙主要与下牙槽神经管存在真正相关。将临床术后诊断与术前影像学检查结果进行比较，显示误差仅为0.8%。大多数磨牙在生命的第三个十年中牙根完全发育。该系列中的大多数牙齿为垂直阻生，牙根大多已完全发育。患有疼痛、牙关紧闭和肿胀的患者之间存在显著相关性。肿胀和牙关紧闭是最主要的术后后遗症。
