外胚叶发育不全患儿的颅颌面影像学分析

发布时间：2018-11-11 08:24

【摘要】：【目的】探讨外胚叶发育不全(ED)患儿牙列情况、上下颌骨发育情况及蝶鞍大小,分析与同龄人间的发育差异。【方法】收集六名6~7岁的ED患儿头颅侧位X线片,其中男性5名,女性1名。记录患儿牙列情况,选择与上下颌及蝶鞍发育相关的17个测量项目,与国内健康的同龄人相比较并作分析。【结果】本研究结果显示,ED患儿恒牙列平均缺牙数为22.3个,乳牙列人均缺牙数为16.2个;尤以恒侧切牙及第一乳磨牙、上颌第一前磨牙、上颌乳侧切牙和下颌乳中切牙最常缺失,且余留牙均呈圆锥形小牙;头影测量结果显示全部病例ANS-Ptm减小,提示上颌骨发育不足;头影测量结果显示所有病例的Co-Po、ANB、NA-PA、N-Me、N-ANS和ANS-Me均减小,部分病例的SNA、Y轴角、MP-FH、S-Co显著减小,部分病例的SNB、NP-FH、NP-FH增大,提示下颌发育不足,下颌前伸,向上前旋转;部分病例的ANS-Me/N-Me~*100%显著减小,N-ANS/N-Me~*100%显著增高,提示面下高度不足;5例患儿的蝶鞍长度、直径低于正常值,2名患儿的蝶鞍深度低于正常值,提示蝶鞍发育异于常人。【结论】ED患儿的牙齿、上下颌骨及蝶鞍的发育均异于常人,上下颌均发育不足,面下高度降低。
[Abstract]:[objective] to investigate the dentition, maxillary and mandibular development and Sella size in children with ectodermal dysplasia (ED), and to analyze the developmental differences between them. Of these, 5 were males and 1 were females. The dentition status of the children was recorded, 17 items related to the development of the upper and lower jaw and the saddle were selected and compared with the healthy peers in China. [results] the results of this study showed that the average number of missing teeth in the permanent teeth of ED children was 22.3. The number of missing teeth per person in primary dentition was 16.2; Ewing lateral incisor and first primary molars, maxillary first premolars, maxillary lateral incisors and mandibular middle incisors are most often missing, and the residual teeth are conical teeth. The results of cephalometric examination showed that ANS-Ptm decreased in all cases, suggesting that the maxillary bone was underdeveloped. Cephalometric results showed that Co-Po,ANB,NA-PA,N-Me,N-ANS and ANS-Me decreased in all cases, SNA,Y axis angle and MP-FH,S-Co decreased significantly in some cases and SNB,NP-FH, in some cases. The enlargement of NP-FH indicates that the mandible is underdeveloped, the mandible extends forward and rotates forward. In some cases, ANS-Me/N-Me~*100% decreased significantly, and N-ANS / N-Meteus 100% increased significantly, suggesting that the subfacial height was insufficient. The length, diameter and depth of Sella turcica were lower than normal in 5 cases, which suggested that the development of Sella turcica was different from that of normal person. [conclusion] the development of teeth, upper and lower jaw bone and Sella turcica in children with ED is different from that of normal children. The upper and lower mandibles were underdeveloped and the subfacial height decreased.
【作者单位】：中山大学光华口腔医学院附属口腔医院//广东省口腔医学重点实验室;咸宁市中心医院//湖北科技学院附属第一医院;
【基金】：广东省自然科学基金(2014A030313126) 广州市科技计划项目(201609010015)
【分类号】：R788

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