口蓋形態と介在液の粘度が義歯床の維持力に及ぼす影響に関する実験的研究

抄録

The purpose of this study is to investigate the influence of the shape of palate and the viscosity of intervening liquid (saliva) on the denture base retention.
16 healthy subject, 14 males and 2 females (23 to 28), was selected for this study. The shape of palate were divided into three types, using 3-dimension measure analyzer.
Additional subjects who have palatine torus took part in this study. Palatal base for experiment was fabricated on the working cast. The retention of the palatal base was measured by retention measure device. The viscosity of the intervening liquid was also take.
The results were as follows:
1. There was a positive relationship between the viscosity of glycerine liquid and the retention of palatal base.
2. There was a positive relationship between the viscosity of mixed saliva and the retention of palatal base.
3. In case of the deep shape of palate, the retention per unit showed small value.
4. If the viscosity of the intervening liquid were same, the retention per unit showed constant value.
5. In case of the palatine torus, the retention showed small value.