摘要
目的:分析下颌下腺窝骨倒凹解剖形态,为下颌磨牙区牙种植术提供参考依据。方法:利用锥形束CT(cone-beam computed tomography,CBCT)扫描成像,分析下颌下腺窝解剖形态特点;在磨牙区模拟植入不同直径种植体,测量下颌下腺窝、下颌管及种植体相关数据,分析三者的空间位置关系。结果:第一磨牙区下颌下腺窝骨倒凹深度为(1.0±0.61)mm,第二磨牙区为(1.5±0.61)mm,性别、左右及缺牙导致的差异均无统计学意义。牙存在者第一磨牙区发生舌侧穿孔时种植体长度为(19.7±3.75)mm(d=4 mm)和(18.6±3.73)mm(d=5mm),第二磨牙区为(16.2±3.46)mm(d=4 mm)和(15.2±3.09)mm(d=5 mm),牙缺失者第一磨牙区发生舌侧穿孔时种植体长度为(17.1±3.77)mm(d=4 mm)和(15.6±3.85)mm(d=5 mm),第二磨牙区为(14.2±4.05)mm(d=4 mm)和(13.2±4.27)mm(d=5 mm),是否缺牙的差异具有统计学意义。结论:在下颌磨牙区进行牙种植手术时,通过CBCT分析下颌下腺窝、下颌管及种植体的空间位置关系,对手术具有重要指导意义。
Objective To evaluate the anatomic morphology of submandibular fossa. Methods Cone- beam computed tomography （CBCT） was used to analyze the anatomic morphology of submandibular fossa. Implants of various dimensions were virtually placed into the mandibular 1st and 2nd molar region. Spatial relationships among submandibular fossa, mandibular canal and implant were analyzed. Results The depth of the submandibular fossa was （1.0 ± 0.61）ram in the 1st molar region and （1.5 ±0.61）ram in the 2nd molar region. There were no significant statistical difference in genders, sides, and tooth loss. The length of the implants was （19.7 ± 3.75）mm （d = 4 mm） and （18.6 ±3.73）mm （d = 5 mm） in the 1st molar region and （16.2 ± 3.46） mm （d = 4 mm） and （15.2± 3.09）mm （d = 5 ram） in the 2nd molar region in patiens with teeth and lingual perforation; the length of the implants was （17.1 ±3.77）mm （d = 4 mm） and （15.6 ±3.85）mm （d = 5 ram）, and （14.2 ± 4.05）mm （d = 4 mm） and （13.2± 4.27）mm （d = 5 mm） in patients with tooth loss, respectively. Conclusions Determination of spatial relationships among submandibular fossa, mandibular canal and implants by using CBCT has important significance in guiding dental implant surgery.
出处
《实用医学杂志》
CAS
北大核心
2014年第6期944-946,共3页
The Journal of Practical Medicine
基金
2013年度河南省医学科技攻关计划项目(编号:201303099)
关键词
下颌骨
下颌下腺窝
牙种植体
锥形束CT
Mandible
Submandibular fossa
Dental implants
Cone-beam computed tomography
