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Subantimicrobial dose doxycycline effects on alveolar bone loss in post-menopausal women.

Author(s): Payne JB, Stoner JA, Nummikoski PV, Reinhardt RA, Goren AD, Wolff MS, Lee HM, Lynch JC, Valente R, Golub LM

Affiliation(s): Department of Surgical Specialties, University of Nebraska Medical Center College of Dentistry, Lincoln, NE 68583-0740, USA. jbpayne@unmc.edu

Publication date & source: 2007-09, J Clin Periodontol., 34(9):776-87.

Publication type: Research Support, N.I.H., Extramural

AIM: Determine the efficacy of 2-year continuous subantimicrobial dose doxycycline (SDD; 20 mg bid) on alveolar bone in post-menopausal osteopenic, oestrogen-deficient women undergoing periodontal maintenance in a 2-year double-blind, placebo-controlled, randomized clinical trial. MATERIAL AND METHODS: One-hundred and twenty-eight subjects randomized to SDD or placebo (n=64 each). Posterior vertical bite wings taken at baseline, 1 and 2 years for alveolar bone density (ABD), using radiographic absorptiometry (RA) and computer-assisted densitometric image analysis (CADIA), and alveolar bone height (ABH). Statistical analyses utilized generalized estimating equations; primary analyses were intent to treat (ITT). Results are presented as SDD versus placebo. RESULTS: Under ITT, there was no statistically significant effect of SDD on ABD loss (RA: p=0.8; CADIA: p=0.2) or ABH loss (p=0.2). Most sites (81-95%) were inactive. For subgroup analyses, mean CADIA was higher with SDD for non-smokers (p=0.05) and baseline probing depths > or =5 mm (p=0.003). SDD was associated with 29% lower odds of more progressive ABH loss in women >5 years post-menopausal (p=0.05) and 36% lower among protocol-adherent subjects (p=0.03). CONCLUSIONS: In post-menopausal osteopenic women with periodontitis, SDD did not differ overall from placebo. Based on exploratory subgroup analyses, additional research is needed to determine the usefulness of SDD in non-smokers, subjects >5 years post-menopausal and in deeper pockets. Protocol registered at (ClinicalTrials.gov). Identifier: NCT00066027.

Page last updated: 2007-10-18

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