安氏Ⅱ类一家系分析
2010-03-07张晓歌杨帆陈琳陈嵩陈扬熙
张晓歌 杨帆 陈琳 陈嵩 陈扬熙
(1.四川大学华西口腔医院 正畸科;2.四川大学华西医院 生物治疗国家重点实验室人类疾病相关多肽研究室,四川 成都 610041;3.四川石油总医院 中西医结合科,四川 成都 610213)
安氏Ⅱ类一家系分析
张晓歌1杨帆2陈琳3陈嵩1陈扬熙1
(1.四川大学华西口腔医院 正畸科;2.四川大学华西医院 生物治疗国家重点实验室人类疾病相关多肽研究室,四川 成都 610041;3.四川石油总医院 中西医结合科,四川 成都 610213)
安氏Ⅱ类在临床上较常见,但关于安氏Ⅱ类家系的报道较为少见。四川大学华西口腔医院正畸科发现1例安氏Ⅱ类一家系(7例患者),并对其进行家系调查和系谱分析。
错畸形; 安氏Ⅱ类; 系谱; 基因
1 病例报告
图1 口内像Fig 1 Intraoral photograph
图2 全口曲面断层片(左)及头颅侧位片(右)Fig 2 Panoramic radiograph(left)and lateral cephalometric(right)
图3 先证者家系图谱Fig 3 The pedigree of the family tree of proband
2 讨论
多数恒牙先天缺失受遗传和环境因素影响,病因较复杂。先证者出现的多数恒牙先天缺失,可能与牙胚发育过程中受到某些因素影响有关[5]。恒牙先天缺失由于缺牙部位和数目的不同,以及受伴有的口腔不良习惯或唇肌张力大小等因素的影响,可形成不同程度的错畸形,并影响颌面部软硬组织的正常发育,对口腔功能和颜面美观造成影响。
该类患者的遗传方式有待进一步研究,随着基因组研究的不断深入[6],可以为遗传学说提供更多的证据,揭示安氏Ⅱ类错的遗传规律、发病机制、诊断和防治措施。
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(本文编辑 李彩)
Angle′s ClassⅡ malocclusion:A report of seven cases in one fam ily
ZHANG Xiao-ge1,YANG Fan2,CHEN Lin3,CHEN Song1,CHEN Yang-xi1.(1.Dept.of Orthodontics,West China College of Stomatology,Sichuan University,Chengdu610041,China;2.Division of Peptides Related with Human Diseases,State Key Laboratory of Biotherapy,West China Hospital,Sichuan University,Chengdu610041,China;3.Dept.of Integrated Traditional and Western Medicine,Sichuan Petroleum General Hospital,Chengdu610213,China)
A family with Angle′s ClassⅡ malocclusion was identified in West China Stomatological Hospital of Sichuan University.The proband was a 22-year-old woman with Angle′s ClassⅡ Division 2 malocclusion with congenitally missing teeth.A total of 15 members of the 3 generations in the family were investigated.There were 7 members(3males,4 females)with Angle′s ClassⅡ malocclusion in the family.The results provide the primary basis for further study to localize the virulence gene.
malocclusion; Angle′s ClassⅡ; pedigree; gene
R 783.5
A
10.3969/j.issn.1000-1182.2010.02.026
1000-1182(2010)02-0219-02
2009-04-20;
2009-06-23
张晓歌(1975—),男,河南人,主治医师,博士
陈扬熙,Tel:028-85503477