Watanabe K, Mizokami T
Department of Complete Denture Prosthodontics, Tokyo Dental College, Chiba, Japan.
Bull Tokyo Dent Coll. 1997 May;38(2):77-86.
We studied the effect of spillways in the posterior artificial teeth of complete dentures in reducing masticatory pressure on the basal mucosa by making completely edentulous patients masticate food. Using two kinds of experimental dentures, one with spillways on the occlusal table and the other without, five subjects wearing complete dentures were instructed to masticate four different types of test food. The results showed that the mastication time and the number of masticatory strokes were not much affected by the existence of spillways. However, the masticatory force of artificial teeth with spillways was slightly smaller than that of artificial teeth without spillways.
我们通过让全口无牙患者咀嚼食物，研究了全口义齿后牙区溢出道在降低基托黏膜咀嚼压力方面的作用。使用两种实验性义齿，一种在牙合面上有溢出道，另一种没有，指导五名佩戴全口义齿的受试者咀嚼四种不同类型的测试食物。结果表明，溢出道的存在对咀嚼时间和咀嚼次数影响不大。然而，有溢出道的人工牙咀嚼力略小于没有溢出道的人工牙。
