Longitudinal analysis of cost and dental utilization patterns for older adults in outpatient and long-term care settings in Minnesota.

Background: Dental utilization patterns and costs of providing comprehensive oral healthcare for older adults in different settings have not been examined.

Methods: Retrospective longitudinal cohort data from Apple Tree Dental (ATD) were analyzed (N = 1,159 total; 503 outpatients, 656 long-term care residents) to describe oral health status at presentation, service utilization patterns, and care costs. Generalized estimating equation (GEE) repeated measures analysis identified significant contributors to service cost over the three-year study period.