Okazaki M, Fukumoto M, Takahashi J
Department of Dental Materials Science and Technology, Osaka University Faculty of Dentistry, Suita, Japan.
Ann Biomed Eng. 1996 Mar-Apr;24(2):234-40. doi: 10.1007/BF02667352.
The mechanical mobility of human teeth was studied by using a wave data treatment system with an accelerometer attached to a personal computer. The healthy teeth in different generations of men and women, who ranged in age from their teens to their forties, showed similar damped oscillation patterns. The spring constant and coefficient of viscous damping were estimated by using a viscoelastic model of damped oscillation with 1 degree of freedom. The coefficient of viscous damping increased dramatically with increases in the damping factor, whereas the spring constant scarcely varied. Silicone membranes were used as model periodontal membranes. The coefficient of viscous damping decreased with increases in silicone membrane thickness. Collagen membranes, which are expected to function as artificial periodontal membranes, were adhered to the model tooth by drying collagen gel and fixed with apatite-collagen composites. The collagen membranes showed damped oscillation wave patterns similar to those of human periodontal membranes.
利用连接到个人计算机的加速度计的波动数据处理系统研究了人类牙齿的机械移动性。年龄从十几岁到四十多岁的不同年龄段的男性和女性的健康牙齿表现出相似的阻尼振荡模式。使用具有1个自由度的阻尼振荡粘弹性模型估计弹簧常数和粘性阻尼系数。粘性阻尼系数随着阻尼因子的增加而急剧增加，而弹簧常数几乎没有变化。使用硅树脂膜作为模型牙周膜。粘性阻尼系数随着硅树脂膜厚度的增加而降低。预期用作人工牙周膜的胶原膜通过干燥胶原凝胶粘附到模型牙齿上，并用磷灰石 - 胶原复合材料固定。胶原膜显示出与人类牙周膜相似的阻尼振荡波形。
