Takahashi Toshihito, Mizuno Yoko, Gonda Tomoya, Maeda Yoshinobu
Int J Prosthodont. 2015 Mar-Apr;28(2):188-90. doi: 10.11607/ijp.4045.
This preliminary study examined laboratory-simulated differences between maxillary complete dentures with and without a palate (palateless) as well as the effect of reinforcement of the latter design. Five types of experimental dentures and three types of reinforcements were made. Strain gauges were attached, and a vertical load was applied. The strain was statistically compared using analysis of variance (P = .05). Strain recordings on the palatal side of palateless dentures without reinforcement were significantly higher than in complete dentures and palateless dentures with reinforcement (P < .05). These preliminary observations suggest that such reinforcement with a palatal bar or metal-based palate may reduce the risk of fracture and deformation.
这项初步研究考察了有腭板和无腭板（无腭顶）的上颌全口义齿在实验室模拟条件下的差异，以及对后一种设计进行加固的效果。制作了五种类型的实验义齿和三种类型的加固装置。粘贴了应变片，并施加垂直载荷。使用方差分析对应变进行统计学比较（P = .05）。未加固的无腭顶义齿腭侧的应变记录显著高于全口义齿和加固后的无腭顶义齿（P < .05）。这些初步观察结果表明，使用腭杆或金属基腭板进行此类加固可能会降低骨折和变形的风险。
