FokI CC+CT genotypes were associated with increased susceptibility to severe CP, which was aggravated further when combined with smoking.
Aim This cross‐sectional study aimed to investigate the association between skeletal bone mineral density (BMD) and periodontitis in Thai adults and elders. Methods This study comprised 3282 participants aged 30‐82 years. BMD was assessed at 3 skeletal sites using dual‐energy X‐ray absorptiometry. Each participant's BMD status was classified as normal, osteopenia or osteoporosis. Periodontal assessments were the number of remaining teeth, plaque score, probing depth and clinical attachment level (CAL). The participants were classified into no/mild or moderate/severe periodontitis groups. The mean periodontal variables between BMD categories were compared. The association between the BMD status and moderate/severe periodontitis was analyzed using binary logistic regression. Results Among the BMD categories, the greatest mean CAL and the lowest mean number of remaining teeth were found in the osteoporosis group. The mean CAL difference between the osteoporosis and normal BMD groups was 0.3 mm. In 337 participants with a plaque score of less than 40%, there was a significant association between osteoporosis and moderate/severe periodontitis. Conclusion Skeletal BMD in the osteoporosis range was associated with moderate/severe periodontitis in individuals with fair oral hygiene, suggesting the benefit of special attention to the skeletal bone health of these individuals.
Background: The association between systemic bone loss and periodontitis remains unresolved; and the trabecular bone score (TBS) is a new index for assessing decreased bone quality. Therefore, this cross-sectional study investigated the association between TBS and severe periodontitis. Methods: Eight hundred and five Thai participants, aged 30 to 82 years, underwent bone quality assessment. Their mean TBS was calculated from dual-energy X-ray absorptiometry images at the L1 to L4 lumbar spine using TBS software. Each participant was classified as normal, partially degraded, or degraded TBS. Full-mouth periodontal examinations determined plaque score, probing depth, clinical attachment level (CAL), and the number of remaining teeth. The participants were classified as non-severe or severe periodontitis. Differences in periodontal parameters between the TBS groups were analyzed using one-way ANOVA. The association between TBS and severe periodontitis was assessed with multivariate binary logistic regression. For severe periodontitis, the additive interaction between TBS and oral hygiene status was also analyzed. Results: The mean CAL was 0.9-mm higher in the degraded TBS group compared with the normal TBS group. Degraded TBS was associated with severe periodontitis with an adjusted odds ratio (OR) of 2.10 (95% confidence interval [CI] = 1.03 to 4.26). The combination of degraded TBS and plaque score ≥80% increased the adjusted OR to 5.71 (95% CI = 1.15 to 28.43). Conclusions: Degraded TBS is associated with severe periodontitis and has a synergistic effect with poor oral hygiene, suggesting monitoring decreased bone quality and good oral hygiene for promoting the periodontal-systemic health of these individuals.
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