下颌前牙与牙槽骨的位置关系对种植治疗设计的影响  

Influence of positional relationship between the long axis of the mandibular anterior teeth and the alveolar bone on the treatment design of dental implants

作　　者：于甜甜 蒲必双 刘金[2] 夏玉兰 王罡 兰晶[1] Yu Tiantian;Pu Bishuang;Liu din;Xia Yulan;Wang Gang;Lan ding(Dept. of lmplantology, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China;Dept. of Prosthodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, dinah 250012, China;Dept. of lmplantology, Hefei Stomatology Hospital, Hefei 230000, China;Dept. of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Jinan 250012, China)

机构地区：[1]山东大学口腔医院种植科山东省口腔组织再生重点实验室,济南250012 [2]山东大学口腔医院修复科,济南250012 [3]合肥市口腔医院种植科,合肥230000 [4]山东省立医院口腔颌面外科,济南250012

出　　处：《华西口腔医学杂志》2017年第6期603-606,共4页West China Journal of Stomatology

摘　　要：目的利用锥形束CT(CBCT)研究正中矢状面下颌前牙与牙槽骨的相对位置关系,为下颌前牙区的种植修复设计提供参考。方法从CBCT影像库中选取下颌恒牙列完整的影像学资料150例,按照性别、牙位分为6组,以受测牙正中矢状面的牙槽骨长轴为基准,测量下颌前牙牙体长轴相对于牙槽骨长轴的倾斜角度(偏舌侧为正,偏唇侧为负)。使用SPSS 19.0软件对数据进行统计学分析。结果男性下颌中切牙、下颌侧切牙、下颌尖牙牙体长轴相对于牙槽骨长轴倾斜角度的平均值分别为4.77°(-8.17°~16.10°)、6.12°(-2.87°~17.57°)、5.01°(-8.13°~17.67°),女性倾斜角度的平均值依次为5.38°(-5.63°~12.93°)、5.81°(-7.70°~15.70°)、6.21°(-7.70°~17.87°)。其中,男性下颌中切牙、下颌侧切牙、下颌尖牙倾斜角度在-10°~10°区间的百分比依次为87.34%、80.67%、88.00%,女性依次为90.67%、82.66%、82.66%。无论男性还是女性,下颌前牙牙体长轴相对于牙槽骨长轴倾斜角度在(-10°~10°)的百分比均超过80%,且牙体长轴偏向唇侧均不超过10°,偏向舌侧均不超过20°。结论绝大多数下颌前牙牙体长轴与牙槽骨长轴的方向基本一致,临床上可以参考二者的位置关系制定合理的种植治疗方案。Objective This study aimed at investigating and measuring the positional relationship between the long axis of the mandibular anterior teeth and the alveolar bone using cone beam computed tomography （CBCT） to provide reference data for implant treatment. Methods Fromthe CBCT image database, 150 cases of radiographic data were selected according to the inclusion criteria and then were divided into six groups： males＇ mandibular central incisors, males＇ mandibular lateral incisors, males＇ mandibular canines, females＇ mandibular central incisors, females＇ mandibular lateral incisors, and females＇ mandibular canines. The angle （13） formed by the long axis of the mandibular anterior teeth and the corresponding alveolar bone was measured and recorded. Based on the long axis of alveolar bone, if the teeth incline to the lingual side, the value of the angle （13） was positive; otherwise, the value was negative. The resultant data were analyzed by SPSS 19.0. Results The β of the mandibular central incisors presented a mean value of 4.77° （range： -8.17°-16,10°） for male subjects and 5.38° （range： -5.63°-12,93°） for female subjects. The β of the mandibular lateral incisors exhibited a mean value of 6.12° （range： -2.87°- 17.57°） for male subjects and 5.81° （range： -7.70°-15.70°） for female subjects. Finally, the β of the mandibular canines presented a mean value of 5.01 o （range： -8.13°- 17.67°） for male subjects and 6.21° （range： -7.70°-17.87°） for female subjects. The percentages of the 13 between -10° and 10° of males mandibular incisors, mandibular lateral incisors, and mandibular canines were 87.34%, 80.67%, and 88.00%, respectively and those of females were 90.67%, 82.66%, and 82.66%, respectively. Whether male or female, the percentages of the β between - 10° and 10° of the mandibular anterior teeth were more than 80%. The β that inclined to the lingual was not more than 20° and to the labial did not exceed 100. Conclusion The long

关 键 词：下颌前牙 牙体长轴 牙槽骨长轴 正中矢状面 

分 类 号：R783[医药卫生—口腔医学]