A Study of the Preventive Program for Periodontal Disease in Association with Adult Mass Dental Examination: II An Evaluation of the Preventive Program by Using Hayashi's Quantification

In order to establish a preventive program for periodontal disease in association with adult mass dental examination, we surveyed the employees of 14 companies in Hokkaido from the previous study. According to the CPITN-Max value, the preventive measures for periodontal disease were recorded including oral hygiene instruction, scaling and recommendation to a dental office. The purpose of this study was to evaluate the effectiveness of our preventive program for periodontal disease by using Hayashi's Quantification type II. This preventive program was performed during and after mass dental examination. The same subjects were re-examined after 1.5 to 2 years in a follow-up examination. The results were as follows: 1. At the first examination, 187 out of 225 subjects were found to require preventive measures, but only 111 subjects (59.4%) received them. 2. Our preventive measures should be adopted during mass dental examination, because some subjects who were contacted subsequently failed to come to receive our preventive measures. 3. CPITN was significantly improved by this preventive program for periodontal disease. 4. Hayashi's Quantification analysis indicated that scaling was the most effective factor in improving the CPITN value. 5. One time oral hygiene instruction alone at the first examination had little effect. 6. Recommendation to visiting a dental office had little effect.