上颌锥形侧切牙患者颌面形态研究  

Maxillofacial Morphology in Patients with Peg-Shaped Upper Lateral Incisors

作　　者：廖妮[1] 戴剑[2] 宋少华[1] 郑怡[1] 李松泽[1] 

机构地区：[1]广西医科大学附属口腔医院正畸科,南宁市530021 [2]广西壮族自治区人民医院心理科,南宁市530021

出　　处：《广西医学》2014年第9期1202-1204,共3页Guangxi Medical Journal

基　　金：广西科学研究与技术开发计划项目(0993003C-16)

摘　　要：目的探讨上颌锥形侧切牙患者颌面形态发育特征。方法选取98例12-25岁的上颌锥形侧切牙患者作为研究对象,拍摄头颅侧位片,对其进行X线头影测量分析。结果 98例患者中,1颗锥形侧切56例占57.1%,2颗锥形侧切牙42例占42.9%。98例患者的矢状面型：安氏Ⅰ类面型40例占40.8%,Ⅱ类面型8例占8.2%,Ⅲ类面型50例占51.0%;垂直面型：高角型46例占46.9%,均角型20例占20.4%,低角型32例占32.7%。结论上颌锥形侧切牙患者矢状向主要表现为Ⅰ类和Ⅲ类面型;垂直向主要表现为均角型和低角型面型,颌面形态特征表现为上颌骨发育不足,下颌骨发育过度,面中部软组织凹陷。Objective To analyze the characteristics of maxillofacial morphology in patients with peg-shaped upper lateral incisors. Methods Ninety-eight patients with peg-shaped upper lateral incisors aged 12-25 years old were enrolled in the study. The lateral cephalograms were taken for a data analysis. Results Among these 98 cases,56 had one peg-shaped upper lateral incisor（ 57. 1%）,42 had two（ 42. 9%）. The sagittal skeletal patterns were skeletal ClassⅠ（ n = 40,40. 8%）,skeletal Class Ⅱ（ n = 8,8. 2%） and skeletal Class Ⅲ（ n = 50,51. 0%）. The vertical skeletal patterns were high vertical type（ n = 46,46. 9%）,average vertical type（ n = 20,20. 4%） and low vertical type（ n = 32,32. 7%）. Conclusion Patients with peg-shaped upper lateral incisors mainly show Class Ⅰ and Ⅲ skeletal pattern,vertical skeletal pattern of average and low vertical type with maxillary hypoplasia,mandibular hyperplasia and midfacial deformity.

关 键 词：锥形牙 上颌 侧切牙 颌面形态 

分 类 号：R783.5[医药卫生—口腔医学]