ヒトの歯に生じたくさび状欠損における咬合によって生じる特異応力場の強さ

概要

論文の詳細を見る
Wedge-shaped defects are frequently observed on the cervical region of the human tooth. Previously, most studies explained that improper toothbrushing causes such defects. However, recent clinical obsarvation suggested that the repeated stress due to occlusal force may induce the formation of these wedge-shaped defects. In this study, therefore, two-dimensional human tooth models are considered with and without a wedge-shaped defect by applying a finite element method. To obtain the intensity of the singular stress accurately, a method of analysis is discussed for calculating generalized stress intensity factors, which control the singular stress around the tip of the defect. Then, the relationship between the stress intensity and occulusion are discussed.
社団法人日本機械学会の論文
2006-01-25