摘要
评价种植体支抗整体远移上颌牙列的矫治效果及治疗后上颌前牙牙根吸收情况。选择20例需要整体远移上颌牙列的患者,在双侧上颌颧牙槽嵴处植入种植支抗钉,加力于上颌主弓丝侧切牙和尖牙之间的牵引钩,整体远移上牙列。治疗前后拍摄头颅侧位片、曲面断层片,取研究模型,测量治疗前后各项目,并运用SPSS 21. 0软件包对治疗前、后各测量项目进行配对t检验。20例患者治疗后上颌第一磨牙中心点到Y轴距离减少了(3. 03±1. 66) mm;上颌中切牙中心点到Y轴距离减少了(2. 58±2. 24) mm;鼻唇角增加了(10. 35±6. 62)°,上唇突距减少了(1. 78±1. 01) mm,差异有统计学意义(P <0. 05)。治疗后上颌中切牙、侧切牙实际全长分别减少了(0. 26±1. 20) mm、(0. 52±1. 42) mm,差异无统计学意义(P> 0. 05)。上颌前突的安氏Ⅱ类患者,通过种植体支抗整体远移上牙列可获得较理想的治疗效果,面型突度改善,牙列达到正常覆牙合、覆盖和尖窝关系,并且治疗后前牙牙根未见明显吸收。
To evaluate the effect of distalizing of maxillary dentition with miniscrew anchorage and analysis the root resorption of maxillary anterior teeth.Twenty patients with maxillary dentition were selected.Two miniscrews were implanted in zygomatic alveolar ridge area.Power chain or Niti closing coil spring were applied from the neck of the miniscrews to the retraction hooks between the lateral incisors and the canines for maxillary dentition distalization.Cephalometric,panoramic radiography and model from all the patients were collected by two stages-“treatment began and treatment finished”.The data were analyzed by SPSS 21.0 for paired t-test.In the 20 cases,the distance from the maxillary first molar center point to the Y axis decreased by(3.03±1.66)mm;the distance from the maxillary central incisor central point to Y axis decreased by(2.58±2.24)mm;The angle of nose and lip increased by(10.35±6.62)°,the upper lip projection decreased by(1.78±1.01)mm,the difference was statistically significant(P<0.05).The total length of maxillary central incisors and lateral incisors decreased by(0.26±1.20)mm and(0.52±1.42)mm,the difference was not statistically significant(P>0.05).For maxillary protrusion of AngleⅡ,the method of distalizing maxillary dentition with minisicrew anchorage could achieve satisfactory treatment results.The soft tissue changes greatly and patient-side appearance was improved significantly.The classⅡmalocclusion were corrected to normal overbite and normal overjet.During the treatment,there were no significant root resorptions.
作者
张月兰
陆兴龙
杨亚普
陈畅
杨建浩
Zhang Yuelan;Lu Xinglong;Yang Yapu(Dept of Orthodontics,The First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052)
出处
《安徽医科大学学报》
CAS
北大核心
2018年第11期1798-1801,共4页
Acta Universitatis Medicinalis Anhui
基金
河南省科学技术厅基础与前沿技术研究(编号:142300410088)
河南省高等学校重点科研项目(编号:15A320087)
郑州市科技局普通攻关计划项目(编号:153PKJGG167)
关键词
种植体支抗
远移上牙列
牙根吸收
miniscrew anchorage
distalizing maxillary dentition
root resorption
