アブストラクト（26巻4号：神奈川歯学）

神奈川歯学

Japanese

Title　： インパクト・ハンマ法によるヒト顔面皮膚の粘弾性測定の試み
Subtitle　： 原著
Authors　： 関口淳平, 松尾悦郎
Authors（kana）　：
Organization　： 神奈川歯科大学歯科補綴学教室第一講座
Journal　： 神奈川歯学
Volume　： 26
Number　： 4
Page　： 387-411
Year/Month　： 1992 / 3
Article　： 原著
Publisher　： 神奈川歯科大学学会
Abstract　： 「緒言」パーシャルデンチャーでは, 支台歯と義歯床下粘膜上に設置される床部との合理的な結合を図る設計が重要で, その際顎粘膜の粘弾性等の物理的性質の情報が大きな診査項目の1つと言える. これは, 粘膜が各個人, 更には各部位によって異なる被圧変位性を示すためであり, 今日まで顎粘膜の性質把握について内外の多くの研究者が多方面から追求している. Lund, Randallらは粘膜の組織構造について細部に至るまで生理, 病理学的にその弾性について詳しく研究をしており, Kantrowiczらは義歯床, 咬合床などを使って咬合時の粘膜全体の動きについて, さらにBonyhardは印象時の粘膜の移動量を歯を基準に測定し, 梅原は立体写真測量法により粘膜の形態変化を報告している. また, Sohm, 平田, 大島らは抵抗線歪み計やピンセット型, きね型トランスデューサなど独自の測定装置を用い, 粘膜の局所加圧時の被圧変位性について報告している.
Practice　： 歯科学
Keywords　： インパクト・ハンマ, 粘弾性, ヒト顔面皮膚

English

Title　： An Attempt to Measure Viscoelasticity of Human Facial Skin by Impact Hammer Method
Subtitle　：
Authors　： Junpei SEKIGUCHI, Etsuro Matsuo
Authors（kana）　：
Organization　： The 1st Department of Prosthetic Dentistry, Kanagawa Dental College
Journal　： Kanagawa Shigaku
Volume　： 26
Number　： 4
Page　： 387-411
Year/Month　： 1992 / 3
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： Abstract: During the process of constructing partial dentures, one of the important things to understand during the stage of designing to achieve a good balance between the abutment teeth and the denture suppoting mucosa is the physical characteristics of the oral soft tissue such as the denture supporting mucosa. There have been many experiments using various methods to do this, but due to the fact that this involves large and complex instruments or require much time for measurement, in the area of prosthetics, understanding the characteristics of the oral soft tissue is usually done based on actual clinical experiences such as inspection and palpation. Our laboratory has been measuring tooth mobility and measuring the viscosity of dental-use rubber impression materials by using the impact hammer method, which is the simplest of all the methods of measurement of vibration for oral cavity use. This time, in order to test the feasibility of viscoelasticity measurement of oral soft tissue using the above method in the future, we have measured the viscoelasticity of the human facial skin, which has similar epithelium characteristicr and supporting tissue structure, and is also relatively easy to measure. As a result of this measurement method under various conditions of the muscle tonus and change in the vibrational force, we have observed the following; (1) Due to the influence of the horizontol viscoelasticity caused by the tention of the facial skin, the viscoelasticity increased when there was increase in the vibrational force. (2) The elasticity showed an increase due to the muscle tonus, but the viscosity showed no influence from it. (3) Impact hammer method is found to be feasible in measureing the viscoelasticity of oral soft tissue.
Practice　： Dentistry
Keywords　：