Study of Denture Foundation with B-mode Ultrasonic Equipment - Development Measuring System for Occlusal Load and Thickness of Denture Foundation -

B型超声波设备研究义齿基托 - 开发义齿基托咬合负荷及厚度测量系统 -

• 批准号: 01571059
• 负责人: KOBAYASHI Ken'ichi
• 金额: $ 1.34万
• 依托单位: Tokyo Medical and Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01571059/
• 关键词: Complete Denture; Ultrasonic Diagnosis; Image Processing; B-mode; Occlusal Force

The purpose of this study was to develop the image processing system, which allows to measure the thickness of the denture foundation and the occlusal force. Using this system, we investigated the compressibility of the denture foundation and to determine the amount of relief in thickness over the specific area.In this report, the mucosal thickness of 60 complete denture wearers were measured with 20 MHz B-Mode Ultrasonic Diagnostic Equipment, under both non occlusal load and maximum occlusal force. Moreover, the mucosal thickness of 15 complete denture wearers whose dentures were relieved by 0.25, 0.50, 0.75, 1.00mm over the areas of incisive papilla, torus palatinus and median palatine suture were also measured by the same manner.The main results were as follows :1. The thickness of the denture foundation could be measured at the accuracy of 0.1mm in the system.2. Decrease in the mucosal thickness under maximum occlusal force was about 0.3mm in averages.3. Decreasing rate in the mucosal thickness under maximum occlsal force was greater in a mandible than in a maxilla.4. Judging from the decrease in the mucosal thickness by relief procedures, it was found that 0.50mm relief in thickness was necessary in a case of severe torus palatinus and 0.20-0.50mm relief in a moderate one.5. Even in a case without the existence of torus palatinus, about 0.25mm relief in thickness was desirable over the incisive papilla and median palatine suture areas.

本研究的目的是开发图像处理系统，它可以测量义齿基托的厚度和咬合力。本文应用20 MHz B型超声诊断仪对60例全口义齿患者在非咬合力和最大咬合力作用下的粘膜厚度进行了测量。另外，对15例全口义齿修复后，分别在切牙乳头、腭隆凸和腭正中缝处减轻0.25、0.50、0.75、1.00mm的情况下，用同样的方法测量了粘膜厚度。该系统可测量义齿基托厚度，测量精度为0.1mm.在最大咬合力作用下，粘膜厚度平均减少约0.3mm.在最大咬合力作用下，下颌骨粘膜厚度的下降速率大于上颌.从减轻手术后粘膜厚度的减少情况来看，重度腭突需要减轻0.50mm，中度腭突需要减轻0.20-0.50mm。即使在不存在腭隆凸的情况下，切乳头和正中腭缝区域的厚度也需要减轻约0.25 mm。

项目成果

H. Uchida, K. Kobayashi and M. Nagao: "Thickness Measurement of Masticatory of Masticatory Mucosa with B-Mode Ultrasonic Equipment" J dent Res. 68. 677 (1989)

H. Uchida、K. Kobayashi 和 M. Nagao：“用 B 型超声波设备测量咀嚼粘膜的厚度” J dent Res。

S. Ishinabe, K. Kobayashi, H. Uchida and M. Nagao: "Changes of the Mucosal Thickness beneath the Denture by Occlusal Load" J Jpn Prosthodont Soc.33. 31 (1989)

S. Ishinabe、K. Kobayashi、H. Uchida 和 M. Nagao：“咬合负荷引起的义齿下方粘膜厚度的变化”J Jpn Prosthodont Soc.33。

石鍋 聡: "荷重時における義歯床下粘膜の厚さの変化に関する研究" 日本補綴歯科学会雑誌. 35. 111-124 (1991)

Satoshi Ishinabe：“装载过程中义齿基托下粘膜厚度变化的研究”日本修复医学会杂志 35. 111-124 (1991)。

石鍋聡,小林賢一,内田博之,長尾正憲: "義歯床支持粘膜の荷重による厚さの変化に関する研究" 日本補綴歯科学会雑誌. 33. 31 (1989)

Satoshi Ishinabe、Kenichi Kobayashi、Hiroyuki Uchida、Masanori Nagao：“负载引起的义齿基托支撑粘膜厚度变化的研究”日本修复医学会杂志 33. 31 (1989)。

石鍋 聡 小林 賢一 内田 博之 長尾 正憲: "義歯床支持粘膜の荷重による厚さの変化に関する研究" 日本補綴歯科学会雑誌. 33. 31 (1989)

Satoshi Ishinabe、Kenichi Kobayashi、Hiroyuki Uchida、Masanori Nagao：“负载引起的义齿基托支撑粘膜厚度变化的研究”日本修复医学会杂志 33. 31 (1989)。