摘要
目的分析维吾尔族与汉族成人骨性Ⅱ类错畸形患者下颌中切牙唇倾度(L1-MP)与牙槽骨形态的关系。方法选取骨性Ⅱ类错畸形的维吾尔族和汉族患者各46例,进行头颅侧位片和锥形束CT(CBCT)扫描拍摄,通过几何画板在头颅侧位片上测量下颌切牙L1-MP,并将其分为唇倾组、舌倾组,通过KaVo eXam Vision软件对下颌切牙牙槽骨形态的各项指标进行测量分析。结果在唇倾患者中,汉族的根尖处唇侧牙槽骨厚度(TB)、根尖处总牙槽骨厚度(TB+TL)均大于维吾尔族,差异有统计学意义(P<0.05);在舌倾患者中,汉族的根尖处舌侧牙槽骨厚度(TL)、TB+TL均大于维吾尔族,差异有统计学意义(P<0.05)。维吾尔族、汉族唇倾组的TB、TB+TL均大于舌倾组,舌倾组的舌侧附着高度(HL)均大于唇倾组,差异均有统计学意义(P<0.05)。维吾尔族、汉族下颌中切牙L1-MP均与TB、TB+TL呈正相关,与HL呈负相关。结论维吾尔族根尖处TB及TB+TL比汉族薄;维吾尔族及汉族患者当下颌中切牙L1-MP增大时,根尖TB及TB+TL也增大,HL降低。
Objective To analyse the correlation between the mandibular incisor labial inclination and the alveolar bone morphology in Uygur and Han patients with skeletal classⅡmalocclusions.Methods A total of 46 Uygur and 46 Han patients with skeletal classⅡmalocclusion were selected and scanned for the lateral cephalometric films and cone-beam CT(CBCT).The mandibular incisor labial inclination was measured on the lateral cephalometric films by the geometric sketch-board software,and divided into the labial titl group and the lingual tilt group.The indexes of the mandibular incisor alveolar morphology were measured by the KaVo eXam Vision software.Results In patients with labial tilt,the thickness of the labial alveolar bone(TB)and the total alveolar bone thickness at the apex(TB+TL)of the Han nationality were greater than those of the Uygur,and the differences were statistically significant(P<0.05).In patients with lingual tilt,the TL and TB+TL of the Han nationality were larger than those of the Uygur,and the differences were statistically significant(P<0.05).The TB and TB+TL in the labial tilt group of the Uygur and Han nationalities were larger than those of the lingual tilt group,and the lingual attachment height(HL)of the lingual tilt group was larger than that of the labial titl group,and the differences were statistically significant(P<0.05).The mandibular incisor labial inclination of Uygur and Han nationalities was positively correlated with TB and TB+TL,and was negatively correlated with HL.Conclusion The TB and TB+TL of the Uygur are thinner than those of Han nationality.When the incisor labial inclination is increased,the TB and TB+TL are also increased,and the HL of the lingual side is decreased.
作者
杨政尧
朱亚玲
吴佩佩
姑则丽努尔·阿布都克力木
尼加提·吐尔逊
王威
YANG Zhengyao;ZHU Yaling;WU Peipei;GUZELINUER Abudukelimu;NIJIATI Tuerxun;WANG Wei(Department of Stomatology,the Second Affiliated Hospital to Xinjiang Medical University,Urumqi,Xinjiang 830063,China;Urumqi Stomatological Hospital,Urumqi,Xinjiang Uygur Autonomous Region 830002,China)
出处
《重庆医学》
CAS
2019年第15期2606-2610,共5页
Chongqing medicine
关键词
骨性Ⅱ类
切牙
唇倾度
牙槽骨
锥形束CT
维吾尔族
skeletal classⅡ
incisor
labial inclination
alveolar bone
cone-beam CT
Uygur
作者简介
杨政尧(1994-),在读硕士,主要从事口腔正畸学方面的研究;通信作者:尼加提·吐尔逊,E-mail:2456373169@qq.com。
