Hayakawa I, Hirano S, Kobayashi S, Nagao M, Masuhara E
Department of Geriatric Dentistry, Tokyo Medical and Dental University, Japan.
Int J Prosthodont. 1994 Jul-Aug;7(4):339-47.
This study examined the desirable properties of a soft denture liner. The physical behavior of palatal mucosa of young adults was quantified by analyzing creep behavior using Voigt's four-element model. Instantaneous elastic recovery was significantly smaller than instantaneous elastic displacement, and delayed elastic recovery was significantly larger than delayed elastic displacement (P < .05). Viscous recovery was small but detectable. To ascertain whether the characteristics of the mucosa can be replaced with a soft material, a new soft lining material was developed and both behaviors, especially after load release, were compared with each other. It was indicated that by properly controlling the amounts of the crosslinking agent and inorganic filler of the soft material, its properties may be made to approximate those of the mucosa.
本研究考察了软性义齿衬垫的理想性能。通过使用沃伊特四元件模型分析蠕变行为，对年轻成年人腭黏膜的物理行为进行了量化。瞬时弹性恢复明显小于瞬时弹性位移，延迟弹性恢复明显大于延迟弹性位移（P < 0.05）。粘性恢复较小但可检测到。为了确定黏膜的特性是否可以被一种软性材料替代，开发了一种新型软性衬里材料，并将两种行为，尤其是负荷释放后的行为进行了相互比较。结果表明，通过适当控制软性材料的交联剂和无机填料的用量，其性能可以接近黏膜的性能。
