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Evaluating the Effect of Usual Source of Dental Care on Access to Dental Services: Comparisons among Diverse Populations

Chapman University

William E. Cunningham

University of California at Los Angeles

Terry T. Nakazono

University of California at Los Angeles

Ronald M. Andersen

University of California at Los Angeles, wcunning{at}medicine.medsch.ucla.edu

Data collected from the International Collaborative Study of Oral Health Outcomes USA (ICS-II) research locations were used to evaluate the relationship between having a usual source of dental care (USDC) and access to dental services. The robustness of the USDC effect after reducing simultaneity bias was tested in the population-based samples using sensitivity analysis. Logistic regression results provided evidence that USDC was the strongest and most consistent predictor of a dental visit in the past 12 months regardless of geographic location, dental care delivery system, or cultural diversity of the population. Even after removing cases that had a USDC for less than 1 or 2 years, the effect remained. From a policy perspective, USDC remains critical to understanding and explaining dental care utilization patterns. The findings suggest the need for designing interventions to increase the availability of a regular provider among vulnerable populations.

Medical Care Research and Review, Vol. 56, No. 1, 74-93 (1999)
DOI: 10.1177/107755879905600105


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