Low metacarpal bone density, tooth loss, and periodontal disease in Japanese women.
The relationship between periodontitis and systemic bone mineral density in Japanese women is undetermined. We tested the hypothesis that periodontitis was more frequent in women with low metacarpal bone mineral density (m-BMD). Subjects were 190 Japanese women (89 premenopausal, 101 post-menopausal). Periodontal status was evaluated according to the Community Periodontal Index of Treatment Need (CPITN). M-BMD was measured by computed x-ray densitometry. The proportion of subjects with periodontitis (CPITN > or = 3) increased as m-BMD decreased in pre-menopausal (18.2%, 36.9%, and 66.6% in the normal, borderline, and very low m-BMD groups, p < 0.02) and post-menopausal women (41.5%, 54.8%, 60%, and 68.4% in the normal, borderline, low, and very low m-BMD groups, p < 0.05). Among post-menopausal women, those with very low m-BMD had fewer teeth present than women with normal m-BMD (19.9+/-7.2 vs. 25.1+/-4.1, p < 0.01). These results indicate that m-BMD loss is associated with periodontitis in Japanese women, and with tooth loss after menopause.
Inagaki
K
K
Department of Periodontology, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan. kojikun@dpc.aichi-gakuin.ac.jp
Kurosu
Y
Y
Kamiya
T
T
Kondo
F
F
Yoshinari
N
N
Noguchi
T
T
Krall
E A
EA
Garcia
R I
RI
D000328:Adult; D000704:Analysis of Variance; D015519:Bone Density; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D016015:Logistic Models; D008663:Metacarpus / Q000503:physiopathology*; D008875:Middle Aged; D016017:Odds Ratio; D010024:Osteoporosis / Q000150:complications*; D015663:Osteoporosis, Postmenopausal / Q000150:complications; D010512:Periodontal Index; D010518:Periodontitis / Q000453:epidemiology / Q000209:etiology*; D015995:Prevalence; D011795:Surveys and Questionnaires; D016388:Tooth Loss / Q000453:epidemiology / Q000209:etiology*