Influence of dentures in the initial occurrence site on the prognosis of bisphosphonate-related osteonecrosis of the jaws: a retrospective study.

Objective: This retrospective cohort study was conducted to investigate the influence of wearing dentures in the initial occurrence site of bisphosphonate-related osteonecrosis of the jaws (BRONJ).

Study Design: A questionnaire regarding the prevalence, therapy, and outcome of jawbone lesions during 2006-08 was mailed to 248 medical institutions with an oral and maxillofacial surgery department in Japan.

Results: Ninety-nine patients wearing dentures had significantly shorter duration until occurrence than 151 patients not wearing dentures.