新しい粘膜厚さ測定装置を用いた義歯装着後の顎堤粘膜の厚さの変化に関する研究

新型粘膜厚度测量装置研究佩戴假牙后牙槽嵴粘膜厚度的变化

• 批准号: 06771879
• 负责人: 井上 義久
• 金额: $ 0.58万
• 依托单位: Matsumoto Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Encouragement of Young Scientists (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06771879/
• 关键词: 顎堤粘膜の厚さ; 超音波

1)目的義歯装着後の診査は咬合の診査,疼痛や違和感などの問診に重点がおかれ,経時的な顎堤粘膜の変化や顎骨の吸収について定量的な経過を追った報告は少ない.その結果,長期間義歯を使用した場合,フラビ-ガムや下顎顎堤の著しい吸収が生じることがある.これは,顎堤粘膜の肥厚や顎骨吸収にともなう形態変化が早期に発見されないためであり,このような問題点を解決するため,まず,顎堤粘膜の厚さに着目し,非観血的に顎堤粘膜の厚さが測定可能な測定装置SDMを用いて,無歯顎患者における全部床義歯装着後の顎堤粘膜の厚さの変化について経過観察を行ない,顎堤粘膜の肥厚や顎骨吸収に伴う形態変化の早期発見の糸口を探ることを目的とした.実際に全部床義歯を装着している患者の欠損部顎堤に本装置を用いて,平田らが行なった測定部位を基準にして顎堤粘膜厚さを測定し,義歯装着前の計測結果と比較検討を行なった.2)結果全部床義歯装着後における欠損部顎堤粘膜厚さの変化を調べるため,被験者10名に義歯装着前の粘膜厚さを測定した後,通法にて製作した義歯を装着後1,2,3,4週間および1ヶ月後に,義歯床の適合,咬合状態,疼痛の有無を診査し,各測定部位の粘膜厚さを測定して義歯装着前の測定値と比較した結果,現時点では顎堤粘膜の肥厚や歯槽骨の吸収を思わせる顎堤粘膜厚さの急激な変化はどの測定部位でも認められなかった.しかしながら,現在の経過観察期間は1ヶ月と短かいため,結論を出すには今後さらに義歯の適合性,咬合状態および疼痛の有無と顎堤粘膜厚さの変化の関連性を長期にわたり経過観察を行なう必要があると考えられた.

1)Objective: To investigate the occlusal pain, discomfort and discomfort after dental fitting. As a result, the long-term use of the jaw, jaw, jaw and jaw absorption of the situation, such as: The thickness of the jaw mucosa was observed at the early stage, and the thickness of the jaw mucosa without bleeding could be measured by SDM. The thickness of the jaw mucosa after all the dental implants were installed in patients without dental implants was observed during the course of observation. The purpose of this study is to explore the early development of jaw mucosa hypertrophy and jaw bone resorption. During the operation of the device, the thickness of the oral mucosa was measured according to the reference position of the oral mucosa of all patients with dental defects. 2) The results of the measurement before dental defects were compared. 3) The thickness of the oral mucosa of all patients with dental defects was adjusted after dental defects were installed. After 1, 2, 3 and 4 weeks of preparation and 1 month of dental implant, the fit, occlusion status and pain of the dental implant were examined. The thickness of the mucosa at each site was measured and compared with the values before dental implant. The results showed that the thickness of the mucosa at the present point was thickened and the absorption of the alveolar bone was rapidly changed. The present observation period is 1 month and the short observation period is 1 month, and the conclusion is that the future observation period is 1 month and the short observation period is 1 month and the conclusion is 1 month and the short observation period is 1 month and the conclusion is 1 month and the