남녀 노인의 치아상태지표와 근감소증 및 골다공증의 연관성

Abstract

Introduction: There is paucity of research on the association of dental health indices with the sarcopenia and osteoporosis among older men and women. The purpose of this study was to investigate the relationship between dental health indices with sarcopenia and osteoporosis in community-dwelling adults aged 65 years or older.

Method: This study used the Fourth (2nd and 3rd year) and the Fifth (1st year) Korea National Health and Nutrition Examination Survey (KNHANES). The study sample consisted of 806 men and 1037 women aged 65 years or older who had completed the health survey, the nutrition survey, and the health examination. Muscle mass and bone density were assessed using dual-energy X-ray absorptiometry (DEXA). Dental health indices included the number of remaining teeth; decayed, missed, and filled permanent teeth (DMFT); and Functioning Teeth Index (FS-T). Logistic regression analyses were performed to examine the odds ratios of sarcopenia, osteoporosis, and sarcopenic osteoporosis by dental health indices, adjusting for demographic characteristics and health-related variables.

Results: In older men, those having less than 20 teeth were 1.8 times more likely to have sarcopenia than those with at least 20 remaining teeth (OR=1.84; 95% CI: 1.28-2.64). Among older women, compared with those having at least 20 teeth, those having less than 20 teeth showed 1.6 times higher likelihood of osteoporosis (OR=1.61; 95% CI: 1.14-2.27). Older women in the lowest tertile, compared with the highest tertile, of the Functioning Teeth Index (FS-T) were 2.4 times more likely to have osteoporosis (OR=2.35; 95% CI: 1.52-3.65).

Conclusion: This study found the number of remaining teeth was significantly associated with sarcopenia in men and osteoporosis in women. This suggests that maintaining a healthy dental state may be an important indicator of muscle and bone health in late life.