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下颌阻生智齿发病率很高,我们1982年调查北京地区23—40岁人口的下颌阻生智齿检出率为52.3％。众所周知,此牙为牙源性感染及颌骨囊肿的常见病源牙。还常引起下第二磨牙远中邻面龋、食物嵌塞、对合牙下垂、颞颌关节病及可能影响下前牙拥挤的正畸治疗等。因此,多数下颌阻生智齿均应及时予以拔除。但由于此牙位置及形态多变,拔除时常遇困难,且术后并发症多,故应为临床医生所重视。
The incidence of mandibular impacted wisdom teeth is very high. In 1982, the detection rate of mandibular impacted wisdom teeth in 23-40-year-olds in Beijing was 52.3%. As we all know, this tooth is a common source of dental infection and jaw cysts. Often caused by the next second molar near the adjacent caries, food impaction of the abutment sagging, temporomandibular joint disease and may affect the next anterior crowded orthodontic treatment. Therefore, the majority of mandibular impacted wisdom teeth should be promptly removed. However, due to the changing position and shape of the tooth, removal often encountered difficulties, and postoperative complications, it should be clinicians value.