下颌前牙根管形态的锥形束CT分析

发布时间：2018-06-29 10:06

本文选题：锥形束CT + 下颌前牙　；参考：《南京医科大学学报(自然科学版)》2017年06期

【摘要】：目的:通过锥形束CT(cone beam computed tomography,CBCT)分析下颌前牙的根管形态,以期为根管治疗提供依据。方法:随机抽取南京医科大学附属口腔医院影像科2015年6月—2016年6月拍摄CBCT的1 022例患者的影像资料,根据牙位、性别和年龄分组,参照Vertucci分类法观察牙根和根管数目、根管构型。结果:共6 032颗下颌前牙被纳入研究。所有下颌中切牙和侧切牙均为单根牙,0.9%(18/2 042)的尖牙为双根牙。下颌中切牙、侧切牙和尖牙多根管率分别为10.6%(211/1 990)、18.0%(360/2 000)和5.4%(111/2 042),且下颌前牙双根管多为TypeⅢ。多根管对称发生的比例分别为中切牙89.9%(98/109)、侧切牙87.3%(165/199)、尖牙48.0%(36/75)。各年龄组中下颌中切牙、侧切牙、尖牙多根管发生率最高的分别为30~40岁组(14.6%,57/397)、40~50岁组(21.1%,62/294)、50~60岁组(8.4%,27/320),多根管发生率各年龄组间差异有统计学意义。女性与男性下颌前牙多根管的发生率差异无统计学意义(11.15%vs.11.53%,P0.05)。结论:下颌前牙根管治疗时注意多根管的发生,多根管发生率和年龄有一定相关性。
[Abstract]:Objective: to analyze the root canal morphology of mandibular anterior teeth by conical beam CT (CT (cone beam computed tomographic CT) in order to provide basis for root canal therapy. Methods: 1 022 patients with CBCT were randomly selected from Department of Imaging of affiliated Stomatology Hospital of Nanjing Medical University from June 2015 to June 2016. According to tooth position, sex and age, the number of root and root canal were observed according to Vertucci classification. Root canal configuration. Results: a total of 6 032 mandibular anterior teeth were included in the study. All mandibular central incisors and lateral incisors were bicentulous teeth with a single incisor of 0.9% (18 / 2042). The rate of multiple root canals in mandibular central incisor, lateral incisor and canine was 10.6% (211 / 1,990) and 18.0% (360 / 2 000) and 5.4% (111 / 2042), respectively. The rates of multiple canals symmetry were 89.9% (98 / 109) for central incisors, 87.3% (165 / 199) for lateral incisors and 48.0% (36 / 75) for canines. The incidence of multiple root canals in the central incisor, lateral incisor and incisor of the mandible was the highest in the age group of 30 or 40 years old (14.657 / 397) or 400-50 years old (21.1p / 294) or 500-60 years old (8.444 / 27320%). There was significant difference in the incidence of multiple canals among different age groups. There was no significant difference in the incidence of multiple root canals between female and male mandibular anterior teeth (11.15vs.11.53). Conclusion: attention should be paid to the occurrence of multiple root canals in the treatment of mandibular anterior root canals, and the incidence of multiple root canals is correlated with age.
【作者单位】：南京医科大学口腔疾病研究江苏省重点实验室;南京医科大学附属口腔医院牙体牙髓科;南京医科大学附属口腔医院影像科;
【基金】：江苏省高校优势学科建设工程项目(2014-37)
【分类号】：R781.05

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