Osteoporosis and periodontitis in older subjects participating in the Swedish National Survey on Aging and Care (SNAC-Blekinge).
Abstract Objective. We assessed the relationships between (I) ultrasonography calcaneus T-scores (PIXI) and mandibular cortex characteristics on oral panoramic radiographs in older subjects; and (II) osteoporosis and periodontitis. Material and methods. We examined 778 subjects (53% women) aged 59-96 years. Periodontitis was defined by alveolar bone loss assessed from panoramic radiographs. Results. PIXI calcaneus T-values ≤-2.5 (osteoporosis) were found in 16.3% of women and in 8.1% of men. PIXI calcaneus T-values <-1.6 (osteoporosis, adjusted) were found in 34.2% of women and in 21.4% of men. The age of the subjects and PIXI T-values were significantly correlated in women (Pearson's r = 0.37, P < 0.001) and men (Pearson's r = 0.19, P < 0.001). Periodontitis was found in 18.7% of subjects defined by alveolar bone level ≥5 mm. Subjects with osteoporosis defined by adjusted PIXI T-values had fewer remaining teeth [mean difference 4.1, 95% confidence interval (CI) -1.1 to -6.5, P < 0.001]. The crude odds ratio (OR) of an association between the panoramic assessment of mandibular cortex erosions as a sign of osteoporosis and the adjusted T-value (T-value cut-off <-1.6) was 4.8 (95% CI 3.1-7.2, P < 0.001; Pearson χ(2) = 60.1, P < 0.001). A significant OR between osteoporosis and periodontitis was only found in women for the T-value cut-off ≤-2.5 (crude OR 1.8, 95% CI 1.1-3.3, P < 0.03). Conclusions. An association between osteoporosis and periodontitis was only confirmed in women. The likelihood that the mandibular cortex index agrees with adjusted PIXI T-values is significant.
Department of Oral Sciences , School of Health and Society, Kristianstad University, Sweden. stefan.renvert@hkr.se
Stefan
S
Renvert
Johan
J
Berglund
Rigmor E
RE
Persson
G Rutger
GR
Persson
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging; D015519:Bone Density / Q000502:physiology; D002111:Calcaneus / Q000000981:diagnostic imaging; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008336:Mandibular Diseases / Q000000981:diagnostic imaging; D008875:Middle Aged; D010024:Osteoporosis / Q000000981:diagnostic imaging*; D015663:Osteoporosis, Postmenopausal / Q000000981:diagnostic imaging; D010518:Periodontitis / Q000000981:diagnostic imaging*; D011159:Population Surveillance; D011862:Radiography, Panoramic; D012737:Sex Factors; D012907:Smoking; D013548:Sweden; D016388:Tooth Loss / Q000145:classification; D014463:Ultrasonography