吃音に関する臨床的研究

第2報 吃音者の口蓋の形態学的研究

抄録

Many morphological studies on the palate of stutterers have been reported. All these studies, however, were based on indirect measurements by the impression method using the plaster models of modeling compounds. This author designed and used an instrument which enables direct and accurate measurements, and the values thus obtained on stutterers were compared with those of the normal group.
The results obtained were as follows:
1. The palate width of stutterers was slightly wider and showed a significantly high value in its correlation to the age.
2. The palate height of stutterers was slightly higher at the first premolar, and markedly at the second molar and showed also a significantly high value in its correlation to the age.
3. The dentatl arch (only at the part of the second molar) was higher in stutterers, and its correlation to the age was also markedly high.
4. Dental arch showed considerable differences in the shape among normal individuals but stutterers showed no special shape.
5. No difference was observed on the row of teeth between the two.