| Summary: | 碩士 === 高雄醫學大學 === 口腔衛生科學研究所 === 88 === Areca quid chewing is a common masticatory drug used in Far East Asia, India, and the South Pacific. It is used daily by 600 million people worldwide, and is a public health problem. In the past fifteen years, many investigations about areca quid chewing have focused on exploring epidemiology, premalignant changes, genetic factors and components of betel quid, but investigations concerning periodontitis have been quite few. The poupose of this study is to evaluate the relationship between areca quid chewing and periodontitis. One hundred and seventy seven subjects were recruited in the sample with which 155 areca quid chewers/ smokers / alcohol drinkers and 22 subjects without any habits. After taking panoramic films and using a questionnaire to survey individual characters, we measured radiographic alveolar bone loss (RAL) in the lower first molar. Areca quid chewer''s annual radiographic alveolar bone loss was up to 2.88 - 5.4 times the no habit group. The odd ratio for association of chewers with severe alveolar bone loss was 22.07 for samples who had chewing/smoking/drinking habit, and 6.10 for only chewing group. Similar results were found between the smokers and the controlled group. Depending on drinking or not, smoker’s annual radiographic alveolar bone loss is 2.95 and 1.12 times that of the controlled group. Smokers had a higher risk of more severe alveolar bone loss than the controlled group (odd ratio 6.46) .If drinkers drink more than, 2 liter a week for 30 years their annual loss of alveolar bone is 3.52 times that of the controlled group. We concluded that a significant relationship does exist between areca quid chewing, smoking, and long term alcohol drinking to increase the loss of alveolar bone. These data support the concept that areca quid chewing, smoking, and long term drinking are important factors to periodontitis.
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