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背景:熟悉根管解剖形态,了解其弯曲程度,可以在一定程度上预防根管预备时的并发症,提高根管治疗的成功率。目的:了解山东地区汉族人恒前牙根管弯曲的情况。方法:采用间接数字化X射线成像技术,对收集的离体208颗前牙进行颊舌向和近远中向拍摄,采用改良的Schneider测量方法,分析根管弯曲情况。结果与结论:山东地区汉族人前牙根管多为Ⅰ型根管,且半数以上存在弯曲,弯曲部位多集中在根尖1/3,尤以上颌尖牙根管弯曲发生率最高,除上颌中切牙外,其余牙位均有S形弯曲根管,下颌前牙在唇舌方向上弯曲半径明显高于近远中方向。提示山东地区汉族人恒前牙根管形态复杂,弯曲率较高。
Background: Being familiar with the morphology of root canal anatomy and understanding its bending degree can prevent the complication of root canal preparation and improve the success rate of root canal therapy to a certain extent. Objective: To understand the bending of the root canal of Han people in Shandong province. Methods: Using indirect digital X-ray imaging technique, the collected 208 anterior teeth were radiated in the buccolingual direction and in the near and far direction. The modified Schneider measurement method was used to analyze the root canal bending. RESULTS AND CONCLUSION: Most of the Han people in Shandong Province were type I root canals, and more than half of them had bends. Most of the bends were concentrated in the apical 1/3, especially in the maxillary canines, The incisors had S-shaped root canals, and the bending radii of the mandibular anterior teeth in the direction of the lip and tongue were significantly higher than those in the near and far. Tip Han people in Shandong Province root canal morphology of the anterior complex, higher bending rate.