歯周病罹患歯の個歯咬合力に関する研究
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概要
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The author undertook a series of measurements, with the use of a measuring device and method designed by Dr. Takamizawa, on a group of 80 male and 76 female patients, all in the age bracket of 30's, who were the out-patients for treatment of Parodontopathia at Nihon University Dental Hospital, regarding the individual biting forces of eaeh tooth. In carrying out the measurements, the resorption degree of their alveolar bone was used as an indication and, thus, correlations between the degrees of resorbed alveolar bone and individual biting forces were studied. Generally speaking, the individual biting forces of the each proper tooth in the concerned teeth group were reduced than that of the control group, in correspondence to the degrees of alveolar bone resorbed. As a result with the perceratage of the individual biting forces of the concerned teeth group against that of the control teeth group, the author arrived at the following conclusions. 1. With the concerned four groups, A. B. C. and D., the distributions of individual biting forces are as follows. That is, group A refers to patients whose resorption of the alveolar bone was within 1/4 of the total length of roots, group B refers to cases where the resorption of the alveolar bone was anywhere from within 1/4 to 1/2, group C refers to cases where the resorption of the alveolar bone was beyond 1/2 to 3/4, and lastly group D refers to cases where the rescorption of the alveolar bone was more than 3/4. 2. [table] In terms of kg. measurements of individual biting forces of the concerned teeth in the 4 groups, the data are as follows. [table] In common with these 4 groups above, there are not observed significant differences in terms of sex, upper or lower jaw (with the exceptions of second premolars in Group A, first molars in Grour B, lateral incisors and second molars in Group C) and the side of jaw whether right or left. On the strength of the measurement data give above, it is to be concluded that they will serve as scientific indications of the degree of functional ability in mastication of the teeth, suffering from Parodontopathia.
- 社団法人日本補綴歯科学会の論文
- 1968-07-31