Effect of wearing the roofless denture on oral function.

佩戴无顶义齿对口腔功能的影响。

• 批准号: 14370628
• 负责人: HAYAKAWA Iwao
• 金额: $ 6.85万
• 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 Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14370628/
• 关键词: roofless denture; oral stereognosis ability; masticatory ability; complete denture; masticatory efficiency; palatal coverage; 感覚運動能力; 咀嚼機能

An adequate extension of the posterior border has been regarded as an essential factor to improve the retentive force of maxillary complete dentures. However, this posterior extension of the border, which inevitably covers the palatal plate widely, may play as an obstructor in the oral cavity, leading to disturbance of oral functions. The purpose of this study was to investigate the effects of wearing an experimental palatal plate on both masticatory ability and oral sensorimotor ability.In the preliminary study, masticatory ability and oral stereognosis ability (OSA) of dentate subjects were measured without wearing the palatal plate. OSA was graded by weighing the ratios of correct answers based on the similarity of tested shapes. Masticatory efficiency, which was expressed by the declination rate of particle size of peanut after chewed, was calculated using the sieving method. The following analyze was performed to reveal the relationship between OSA score and masiticatory efficienc … More y, using the Spearman's correlation coefficient by ranks. The result showed the positive correlation between masticatory ability and OSA at 0.05 of significance level, which indicated the correlation between sensorimotor ability and masticaotry ability.In the following study, influences of palatal coverage on masticatory efficiency, OSA, and their relation were investigated for dentate subjects. A palatal plate, 1.5 mm thickness, covering the palate was posteriorily extended to the vibrating line. Measurements were performed without and with the plate on the day of the plate insertion, and then repeated 3 and 7 days after insertion. After 2 months, independent series of measurements for the OSA test were performed without the plate using the same schedule. The mean values of masticatory efficiency were statistically analyzed using repeated-measures one-way ANOVA. The mean values of the OSA score at each measurement session with and without the palatal plate were statistically analyzed using the repeated-measures two-way ANOVA. Post hoc analysis was performed using the Bonferroni test. The results showed that masticatory efficiency was significantly decreased with the insertion of the plate. On the contrary, OSA score showed no difference between with and without the plate.These results showed that masticatory efficiency, which is a indicator of masticatoy ability, decreases by wearing the palatal plate. This finding suggests that principle of maxillary complete denture design should be reformulated from the point of view of oral function. Less

后缘的充分延伸被认为是提高上颌全口义齿固位力的重要因素，然而，后缘的延伸不可避免地会广泛覆盖腭板，可能会成为口腔的障碍。 ，导致口腔功能障碍，本研究的目的是探讨佩戴实验性腭板对咀嚼能力和口腔感觉运动能力的影响。在初步研究中，咀嚼能力和口腔立体认知能力。齿状受试者在不佩戴腭板的情况下测量咀嚼效率，通过权衡正确答案的比例来评估咀嚼效率，咀嚼效率以花生咀嚼后颗粒大小的下降率表示。使用筛分法进行以下分析，以揭示 OSA 评分与咀嚼效率之间的关系，使用按等级划分的 Spearman 相关系数。咀嚼能力与 OSA 之间的相关性达到 0.05 的显着性水平，这表明感觉运动能力与咀嚼能力之间存在相关性。在以下研究中，研究了齿状腭板受试者的腭覆盖对咀嚼效率、OSA 的影响及其关系。厚度为 1.5 毫米，覆盖上颚，向后延伸至振动线，在插入骨板当天进行测量（不带骨板和带骨板），然后重复 3 次和 3 次。插入后 7 天。2 个月后，使用相同的时间表对 OSA 测试进行独立系列测量，并使用重复测量单向 OSA 评分进行仔细分析。使用重复测量双向方差分析对有和没有腭板的每次测量进行了仔细分析，并使用 Bonferroni 检验进行了事后分析。结果表明，咀嚼效率随着腭板的插入而显着降低。相反，OSA评分在有和没有上颌板之间没有差异。这些结果表明，咀嚼效率（咀嚼能力的指标）随着佩戴腭板而降低，这表明了上颌全口义齿设计的原理。应从口腔功能的角度重新制定。

项目成果

口蓋粘膜の被覆が口腔感覚運動能力に及ぼす影響-口腔形態認識能と咀嚼効率について-

腭粘膜涂层对口腔感觉运动能力的影响 - 口腔形态识别能力和咀嚼效率 -

• 发表时间: 2004
• 期刊: 日本補綴歯科学会雑誌 48巻111回特別号
• 作者: 飼馬祥頼

Influence of the Coverage of Palatal Mucosa on Oral Sensorimotor Function. -The Relation between Oral Stereognosis Ability and Masticatory Efficiency-

腭粘膜覆盖对口腔感觉运动功能的影响。

• 发表时间: 2004
• 期刊: J Jpn Prosthodont Soc 48(111)
• 作者: Yoshinori Kaiba;Shigezo Hirano;Takako Murakami;Iwao Hayakawa.
• 通讯作者: Iwao Hayakawa.