Nomura S, Hasegawa S, Noda T, Ishioka K
Department of Removable Prosthodontics, Niigata University, Japan.
Int J Paediatr Dent. 1993 Mar;3(1):29-38. doi: 10.1111/j.1365-263x.1993.tb00044.x.
A patient with hypohidrotic ectodermal dysplasia and anodontia was studied clinically and cephalometrically from 6 to 18 years of age. This case is exceptional in that the patient was a young girl. Five sets of complete dentures were fitted during this period. Periodic recall examination and adjustment maintained good oral function and aesthetics. Serial cephalometric analysis of craniofacial development revealed that growth of the maxilla was slightly reduced, but there was no detectable effect in the mandible. Three-dimensional analysis of the alveolar ridge form from serial casts showed that increase of the anteroposterior arch dimension was larger than that of the lateral arch dimension in both jaws. There was a lateral expansion in the anterior and premolar regions and a considerable height increase in the posterior tooth region of the upper alveolar ridge. Our findings support those of Sarnart et al. (1953) in showing that lack of teeth did not affect growth of the jaws.
对一名患有少汗型外胚层发育不良和无牙症的患者进行了临床和头影测量研究，研究时间跨度为6至18岁。该病例的特殊之处在于患者是一名年轻女孩。在此期间为患者佩戴了五副全口义齿。定期的复诊检查和调整维持了良好的口腔功能和美观。对头面部发育进行的系列头影测量分析显示，上颌骨的生长略有减少，但在下颌骨未发现明显影响。对连续模型进行的牙槽嵴形态三维分析表明，上下颌前后弓维度的增加均大于侧弓维度的增加。上牙槽嵴的前部和前磨牙区有横向扩展，后牙区有显著的高度增加。我们的研究结果支持了萨纳特等人（1953年）的研究结果，表明无牙并不影响颌骨的生长。
