Ranta R
ASDC J Dent Child. 1985 Mar-Apr;52(2):125-7.
A family is described, where the mother and her two sons had similar bilateral congenital absences of the following maxillary teeth: the second premolars, the first, second and possibly the third molars, as well as, in the sons, the second primary molars. The size, shape and formation of the remaining teeth were within normal limits. The near relatives of the parents had no history of hypodontia. The family members were otherwise healthy except that the mother and one of the sons had a slight nasality of speech. Moreover, the mother and both sons had adhesive otitis.
本文描述了一个家族，母亲及其两个儿子双侧上颌牙存在类似的先天性缺失：第二前磨牙、第一、第二以及可能的第三磨牙，并且在儿子中还缺失第二乳磨牙。其余牙齿的大小、形状和发育均在正常范围内。父母的近亲无牙发育不全病史。除母亲和其中一个儿子有轻微鼻音外，家族成员其他方面均健康。此外，母亲和两个儿子都患有粘连性中耳炎。
