Pathogenetic and associative relationships between the parameters of periodontal health and bone mineral density in women living in a megalopolis

Relevance. Osteoporosis and chronic periodontitis are serious issues of modern life. The hypothesis that these two diseases are associated is still open-ended and doesn’t allow setting the record straight for the lack of sufficient evidence.
Purpose. The study aimed to detect the relationship between periodontal health parameters and mineral bone density characteristics in postmenopausal women.
Material and methods. The study examined 109 female patients with diagnosed moderate chronic generalized periodontitis (К05.31). The participants formed two groups: the main group (76 women) and the control group (33 women). Dual-energy X-ray absorptiometry, FRAХ® and CCI assessed the mineral bone density and patients’ systemic health. Dental status was evaluated using the OHI-S, CAL, PPD, PMA, PI, and PBI. X-ray assessment was based on the Fuchs index for upper and lower jaws, and the mandibular cortical index (MCI) was evaluated by CBCT scans in Galaxis Galileos software (Sirona), Orthophos SL CBCT scanner. The data were statistically analysed using licensed STATISTICA 13.3 software. In descriptive statistics for variables, the median was quartiles corresponding to the 25th percentile and the 75th percentile. The Shapiro-Wilk test and χ2 (chi-square) evaluated the normality of variables.
Results. Periodontal pocket depth (PPD) was 4.44 (4.30:4.20:4.50) in the main group. The cumulative change in the clinical attachment level (CAL) was 5.53 (5.50:5.40:5.80), which was significantly higher than the control group parameters (р < 0.001). Bone mineral density of L1-L4 vertebrae corresponded to osteopenia (g/cm2) -0.83 (-080: -0.78: -0.91), spine (Neck) Т-score was -1.70 (-1.7: -2.2: -2.0). In the patients of the control group, the CBCT did not show any signs of inf lammatory destruction, and the DXA test did not reveal any loss of bone mineral densit y.
Conclusion. There are mean significant (less than 0.05) correlations between right femoral neck Т-scores and periodontal pocket depth parameters (R = -0.39) and between the same parameter and the clinical attachment level (CAL) (R = -0.37). A significantly high degree of negative correlation is between the spine Т-score of L1-L4 and PPD, correlation coefficient (R = -0.72).

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