Toru Takiguchi

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Plant extracts and their constituents were tested for antibacterial activity against periodontopathic bacteria, including Actinobacillus, Capnocytophaga, Fusobacterium, Eikenella and Bacteroides species. The essential oils of two labiatae plants, Mosla chinensis Maxim. and Pogostemon cablin Benth., and five terpenoids, hinokitiol, thymol, carvacrol,(More)
AIM To prospectively study how dental status with and without dentures could become a predictor of overall mortality risk. METHODS Five thousand six hundred eighty-eight community residents over 40 years old in the Miyako Islands, Okinawa Prefecture, Japan, were followed up for 15 years from 1987-2002. RESULTS We found that female subjects with less(More)
Many postmenopausal women have osteopenia, a condition characterized by loss of bone mineral density (BMD) that is not as severe as in osteoporosis. The objective of this study was to estimate the cost-effectiveness of alendronate to prevent fractures in osteopenic postmenopausal women without a history of fracture in Japan. An individual simulation model(More)
BACKGROUND Oral function influences various general health and organ diseases. We wondered if physical complaints of unknown origin were related to oral function. METHODS Five thousand five hundred and eighty-four community residents (2206 men and 3378 women, aged 40-89 years) on the Miyako Islands, Okinawa Prefecture, Japan, were recruited for the(More)
AIM To assess the critical tooth number (CTN) required for prevention of subjective dysphagia caused by oral impairments and to evaluate the relationship between this CTN and mortality. METHODS The baseline study was performed with residents aged 40-89years (n=5,643; 2224 men and 3419 women) in Miyako Islands, Okinawa, in 1987. Dental examinations were(More)
The aim of this study was to investigate risk factors affecting 5- and 10-year survival in autotransplantation of third molars with complete root formation at dental clinics. Participating dentists were requested to provide information on transplantations performed between 1 January 1990 and 31 December 2009. After data screening and elimination, 183 teeth(More)
Although an osteoporosis screening program has been implemented as a health promotion project in Japan, its cost-effectiveness has yet to be elucidated fully. We performed a cost-effectiveness analysis and found that osteoporosis screening and treatment would be cost-effective for Japanese women over 60 years. The purpose of this study was to estimate the(More)
Oral health instruction for adults should take into account the potential effect of tooth loss, as this has been suggested to predict further tooth loss. Therefore, the purpose of this study was to determine whether further tooth loss could be predicted from the number of present teeth (PT). We employed the same method as in our previous study, this time(More)
Major and minor elements of successively collected 70 Middle Triassic radiolarian bedded cherts from the Mino Belt in central Japan were studied. In order to reveal pre-diagenetic, primary geochemical signatures related to marine biogeochemical cycles, composite data of chert-shale couplets in addition to raw data were examined. The results show that Mn,(More)