The purpose of this study was to identify changes in masticatory efficiency after periodontal treatment.The parameters of masticatory efficiency investigated were occlusal area, mean pressure, and biting force. Each of these parameters was measured in every tooth using the Dental increases in occlusal area and the biting force, respectively, and 1.6% decrease was observed in mean pressure. One week after flap operation, occlusal area and the biting force had decreased by 44.1% and 42.1%, respectively, and mean pressure increased 11.1%. Three months after the operation, all parameters had almost completely returned to their preoperative values, and 6 months after the operation, increases of about 10% were observed in occlusal area and biting force.These results suggested that the masticatory efficiency changed according to the degree of inflamation of the periodontal tissue.
This study was carried out to assertain the conditiors of cases who had undergone periodontal surgery from January, 1995 to December, 1995 in our clinic and to compare these results with those of 10 years previously.The following results were obtained. 1. The operative cases were 121 (68 males and 53 females) and the average patient age was 51.0 years old. 2. The progressive stages of periodontitis at the time of surgery were as follows. mild: 3.6%, moderate: 44.6%, severe: 51.8%. 3. The main purpose of surgery was elimination of periodontal pockets (59.7% of cases) , followed by improvement of furcation involvements.4. As regards the classification of these operations, there were 98 flap operation cases, 54 periodontal osseous surgery cases and 33 furcationinvolved surgery cases.5. According to the results of the preoperative evaluation, the plaque control record was under 20% in 67.6% of all cases and the bleeding index was under 20% in 69.5% of all cases.6. The flap operation had been done mainly for the 5mm pocket depth cases. The furcationinvolved surgery had been done mainly for the degree 3 involvement cases.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.