摘要
目的利用CBCT研究成人上颌前突患者微种植体支抗内收上切牙牙槽骨的改建情况。方法选择符合纳入标准的40例患者,上颌均拔除第一双尖牙辅助微种植体支抗内收上前牙,收集治疗前后的CBCT数据,辅助三维测量软件Dolphinimaging对上颌80个中切牙和80个侧切牙的牙槽骨高度、厚度等相关参数进行测量和分析。结果微种植体强支抗内收切牙后,上颌中切牙唇侧牙槽骨高度降低(0.11±0.33)mm,腭侧牙槽骨高度降低(0.85±1.23)mm;侧切牙唇侧牙槽骨高度降低(0.18±0.42)mm,腭侧牙槽骨高度降低(1.13±1.14)mm;腭侧牙槽骨高度降低量较唇侧多,差异均有统计学意义(P<0.05)。上颌中切牙唇侧牙槽骨厚度增加(根颈部、根中部和根尖部)(P<0.001),上颌侧切牙唇侧牙槽骨厚度也增加(P<0.05),上颌中切牙与侧切牙腭侧3个平面的牙槽骨厚度和总牙槽骨厚度治疗后均减少(P<0.001)。结论成人上颌前突患者拔除上颌第一双尖牙微种植体支抗内收前牙后,上颌切牙唇腭侧牙槽骨高度均降低,腭侧牙槽骨高度降低较唇侧多;上颌切牙唇侧牙槽骨均增厚,上颌切牙腭侧牙槽骨厚度和总牙槽骨厚度治疗后均减少。
Objective To study the remodeling of alveolar bone after retraction of the maxillary incisors assisting with micro⁃implant anchorage in adult patients with maxillary protrusion by CBCT.Methods Forty patients who were treated with extraction of the maxillary first premolars with microimplant anchorage meeting the inclusion criteria were selected.The CBCT data before and after treatment were collected,and the Dolphin Imaging 3D measurement software was used to measure and analyze the height and thickness of the alveolar bone of the 80 upper central incisors and the 80 lateral incisors.Results After retraction of the incisors assisting with microimplant anchorage,the labial alveolar bone height of the maxillary central incisors decreased(0.11±0.33)mm,and the lingual alveolar bone height of the maxillary central incisors decreased(0.85±1.23)mm.The labial alveolar bone height of the maxillary lateral inci⁃sors decreased(0.18±0.42)mm,and the lingual alveolar bone height of the maxillary lateral incisors decreased(1.13±1.14)mm.The reduction in the lingual alveolar bone height was greater than that of the labial side,and the dif⁃ference was statistically significant(P<0.05).The labial alveolar bone thickness of the maxillary central incisors in⁃creased(the root cervix,the root media and the root apex),and the difference was statistically significant(P<0.001).The labial alveolar bone thickness of the maxillary lateral incisors also increased(P<0.05),while the lingual alveolar bone thickness and the total alveolar bone thickness of the maxillary central and lateral incisors decreased(P<0.001).Conclusion In adults with maxillary protrusion,the microimplant was used to assist the reduction of the anterior teeth.The alveolar bone height of the maxillary incisors was reduced,and the palatal alveolar bone height decreased more than that of the labial side.The alveolar bone of the labrum was thickened,and the palatal alveolar bone thickness and the total alveolar bone thickness of the maxillary incisors were reduced after treatment.
作者
沈娇乡
苏晶晶
黄文霞
SHEN Jiaoxiang;SU Jingjing;HUANG Wenxia(Depart⁃ment of Orthodontics,Xiamen Stomatology Hospital,Hospital and School of Stomatology,Xiamen Medical University,Xiamen 361003,China;Department of Periodontics,Xiamen Stomatology Hospital,Hospital and School of Stomatol⁃ogy,Xiamen Medical University,Xiamen 361003,China)
出处
《口腔疾病防治》
2019年第12期769-774,共6页
Journal of Prevention and Treatment for Stomatological Diseases
基金
国家自然科学基金面上项目（81771079）
福建省卫生计生青年科研课题（2016-2-74）
关键词
骨性上颌前突
上切牙内收
微种植体支抗
牙槽骨改建
牙槽骨厚度
牙槽骨高度
锥形束CT
maxillary protrusion
retraction of upper incisors
micro implant anchorage
alveolar bone re modeling
alveolar bone thickness
alveolar bone height
CBCT
作者简介
沈娇乡,主治医师,硕士,Email:57568706@qq.com;通信作者:黄文霞,主任医师,Email:1043200243@qq.com,Tel:86⁃592⁃2678521。
