Evaluating condylar asymmetry in different skeletal patterns with Cone-beam computed tomography

来源 :第十一次全国口腔医院管理学术会议 | 被引量 : 0次 | 上传用户:sycamorelee
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Introduction: The aim of this study was to evaluate mandibular asymmetry in different skeletal patterns with Cone-beam computed tomography(CBCT).Methods: A total of 110 subjects(65 females and 45 males)aged from 18 to 30 years were selected from patients who had undergone CBCT examinations retrospectively.All the subjects were divided into three groups according to the skeletal patterns: Class Ⅰ(Cl Ⅰ: 0≤ANB≤5),Class Ⅱ(Cl Ⅱ: ANB>5)and Class Ⅲ(Cl Ⅲ: ANB<0).In addition,each group was also divided into two subgroups according to gender.Condylar(Co-Sig),ramus(Go-Sig)and condyle-plus-ramus(Co-Go)asymmetry were assessed by identifying landmarks on the reconstructed images with a 3-dimentional(3D)reference plane.The coordinates of the landmarks were calculated statistically,so were the coordinates of point Menton(Me).
其他文献
  Objectives: The study aimed to analyze the survival rates of implants installed utilizing the osteotome technique,to assess the marginal bone loss(MBL)and t
会议
硬质阳极氧化是一种常用的铝及其合金表面处理技术。经阳极氧化处理后的氧化膜表面有许多微孔,容易吸附腐蚀介质,从而使铝及其合金的结构和性能发生损害。因此,多孔氧化膜的
植酸酶是催化植酸及植酸盐水解成肌醇和磷酸及磷酸盐的一类酶,将其添加到单胃动物植物性食品与饲料中,可以使植酸水解成肌醇和磷酸而被单胃动物所利用,而且释放被植酸络合的C
肺癌为恶性肿瘤中较为常见的类型之一,而非小细胞肺癌又是肺癌的主要类型,约占肺癌总数80-85%。Tumor necrosis factor(TNF)-α-induced protein8(TNFAIP8/TIPE)是2000年由Kum
  Objective : To investigate the histomorphological changes of the keratocystic odotogenic tumor after decompression.Methods:The histomorphologyical changes o
会议
根据生物矿化作用,可以将文石分为生物文石和非生物文石,对生物文石和非生物文石进行深入研究可以为现代生物复合材料的研发制造提供科学依据,并将对生物矿化的发展产生积极影响
  Objective Platelet-rich plasma(PRP)is a rich source of autologous growth factors.PRP was first applicated in the treatment of periodontal intra-bony defects
会议
  Background:Dental caries is one of the most common oral diseases affecting human health and life.Streptococcus mutans is the major pathogen associated with
会议
  Objective::Autophagy is a lysosomal degradation pathway that degrades damaged or superfluous cell components into basic biomolecules,which are then recycled
会议
本文采用络合沉淀法制备了掺Al摩尔比例为Al:Ni=1:3、1:4、1:5、1:8、1:10(编号分别为α3、α4、α5、α8、α10)的Al代α-Ni(OH)2,并参照工业用球形Ni(OH)2(编号为sph),对材料的物理化学性能和电化学性能进行了较全面的表征。XRD测试表明制备样品为α-Ni(OH)2,且较球形Ni(OH)2有更宽的层间距;α-Ni(OH)2层间插入大量的水分子、阴离子,同时具