Studies on evaluation of masticatory function during initial treatment of periodontal disease. A method for the measurement of biting force.:A Method for the Measurement of Biting Force

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Symptoms of functional disturbance of the masticatory system are clinically important subjective signs of the periodontal patient. Therefore, evaluation of the masticatory function during initial treatment of periodontal disease is an effective means both for motivation of the patient and to assess the improvement of the disease. This investigation was aimed to establish a method for clinical measurement of biting force using healthy volunteers.<BR>Twelve adults, 6 men and 6 women, participated in this study. The biting force of the first premolars at the upper left and lower right were measured by strain gauge. The subject was instructed to bite 6 times as hard as possible, each for 5 seconds at intervals of 15 seconds. After 2 minutes' rest, an identical series of 6 bitings was performed. A third series was also conducted after 5 minutes of rest.<BR>The biting force increased gradually and reached a plateau after several trials. The mean value of the biting force was significantly different between the first series and the second or third one, but not between the second and third series.<BR>It appears that the mean value of the second series can be used as the representative biting force of the subjects. The applicability of the value as an indicator for the assessment of masticatory function of periodontal patients is discussed.
有限責任中間法人日本口腔衛生学会の論文