三维数字化建立恒牙期安氏Ⅱ类错牙合模型对牙弓和基骨弓的测量分析  

Characteristics of dental arch and basal bone in permanent dentition Angle Class Ⅱ malocclusion based on three-dimensional digital models

作　　者：武杰[1] 王超然 赵伟[1] 孙梦姣 李洪发[1] Wu Jie;Wang Chao-ran;Zhao Wei;Sun Meng-jiao;Li Hong-fa(Department of Orthodontics, Stomatological Hospital of Tianjin Medical University, Tianjin 300070, China;Department of Stomatology, No. 254 Hospital of Chinese PLA, Tianjin 300142, China)

机构地区：[1]天津医科大学口腔医院正畸科,天津市300070 [2]天津解放军第二五四医院口腔科,天津市300142

出　　处：《中国组织工程研究》2017年第36期5769-5774,共6页Chinese Journal of Tissue Engineering Research

基　　金：2013年度滨海新区卫生局科技项目(2013Bwky023)~~

摘　　要：背景:正畸医生使用模型测量能够获得关于牙颌的全面数据,三维数字化模型显示能比传统模型获得更准确的信息。目的:通过对恒牙期安氏Ⅱ类错牙合三维数字化模型进行测量,探讨其牙弓和基骨弓的特点。方法:实验组为恒牙期安氏Ⅱ~1类组(30例)、安氏Ⅱ~2类组(30例),对照组为恒牙期个别正常牙合(30例)。使用3shape R700扫描仪将3组石膏模型扫描生成三维数字化模型,使用三维测量软件Orthoanalyzer 2013对数字化模型进行测量。采用SPSS 19.0软件对上述3组测量数据进行统计学分析,组间两两比较采用方差分析LSD法。结果与结论:(1)上下颌牙弓长度、上颌牙弓前中段、下颌基骨中段宽度:Ⅱ~2>个别正常颌>Ⅱ~1(P<0.05);下颌牙弓前段宽度、上下颌基骨长度:个别正常颌>Ⅱ~1>Ⅱ~2(P<0.05);上颌牙弓后段、上颌前中段、下颌前段基骨宽度:个别正常颌>Ⅱ~2>Ⅱ~1(P<0.05);(2)牙体长轴与牙合平面角度:安氏Ⅱ~1、Ⅱ~2、个别正常颌前牙区该角度差异显著;上颌后牙区(冠):Ⅱ~2>Ⅱ~1>个别正常颌(P<0.05);下颌后牙区(冠):Ⅱ~2>个别正常颌>Ⅱ~1(P<0.05);(3)安氏Ⅱ~1弓形有狭而长的趋势,安氏Ⅱ~2弓形有宽而短的趋势;(4)安氏Ⅱ~1牙列前段(3-3)存在矢状向不调,表现为上下颌唇倾;中(4-4)后(6-6)段存在冠状向不调,上牙列表现为腭倾,下牙列表现为颊倾。安氏Ⅱ~2牙列前段存在矢状向不调,表现为上下颌舌倾;后牙区无不调。BACKGROUND:An orthodontist can gain all comprehensive data about the tooth and jaw based on a model measurement.With the development of CAD/CAM,a three-dimensional(3D)digital model shows more accurate information than a traditional model.OBJECTIVE:To explore the characteristics of dental arch and basal bone in permanent dentition Angle Class IImalocclusion based on3D digital models.METHODS:Thirty cases of normal occlusionin permanent dentition were selected as control group,and30cases of Angel II1and30cases of Angel II2malocclusion were enrolled,respectively.Three kinds of3D digital models were established using a3shape R700scanner and measured with Orthoanalyzer2013.The data of individual normal occlusion and Angel II1and Angel II2data were analyzed statistically with SPSS19.0software respectively.Intergroup comparison was analyzed by the least significant difference test method.RESULTS AND CONCLUSION:Maxillary and mandibular dental arch length and maxillary dental arch width of front section(3-3)and middle section(4-4)/maxillary basal bone length and mandibular basal bone width of middle section(4-4):II2>normal occlusion>II1(P<0.05).Mandibular dental arch front width of section(3-3)/maxillary and mandibular basal bone length:normal occlusion>II1>II2(P<0.05).Maxillary dental arch width of behind section(6-6)/maxillary basal bone width offront section(3-3)and middle section(4-4)/mandibular basal bone width of front section(3-3):normal occlusion>II2>II1(P<0.05).The angle of tooth long axis and plane:there was significant difference in the Angel II1,II2and normal occlusion(P<0.05).Maxillary posterior-teeth area(coronary):II1>II2>normal occlusion(P<0.05).Mandibular posterior-teeth area(coronary):II2>normal occlusion>II1(P<0.05).The dental arch of Angel II1was narrow and long in shpape,and the dental arch of Angel II2was wide and short in shape.Sagittal discordant existed in the anterior of Angel II1,such as lip-side incline of maxilla and mandible.Coronal discordant existed in the median and posteior of Angel II1,su

关 键 词：组织构建 组织工程 数字化模型 三维扫描 安氏Ⅱ1类 安氏Ⅱ2类 

分 类 号：R318[医药卫生—生物医学工程]