Billed and Paid Amounts for Preventive Procedures in Dental Medicaid

Estimation of oral disease burden from claims and self-reported data

OBJECTIVE

To compare the use of Medicaid and commercial claims data with self-reported survey data in estimating the prevalence of oral disease burden.

METHODS

We analyzed 2018 Medicaid claims from the IBM Watson Medicaid Marketscan database, commercial claims from the IBM Dental Database, and Medical Expenditure Panel Survey (MEPS) data. The estimate of oral disease burden was based on standard metrics using periodontal and caries-related Current Dental Terminology (CDT) procedure codes. A direct comparison between the data sets was also done.

RESULTS

Unweighted Medicaid and commercial enrollees were 11.6 and 10.5 million, respectively. The weighted proportion from MEPS for Medicaid and commercial plans ranged from 80 to 208 million people. Estimates of caries-related treatments were calculated from IBM Watson and MEPS data for Medicaid enrollees (13% vs. 12%, respectively) and commercial claims (25% vs. 17%, respectively). Prevalence of periodontal related treatments for those with a dental visit was estimated for IBM Watson and MEPS enrollees for Medicaid (0.7% vs. 0.5%, respectively) and commercial claims (7% vs. 1.6%, respectively). Dental disease estimates were higher in individuals with at least one dental visit across cohorts. Prevalence of disease for those with a dental visit based on specific procedures were higher in commercial plans than in Medicaid.

CONCLUSIONS

Claims data has the potential to serve as a proxy measure for the estimate of dental disease burden in a population.

Factors influencing dentists' willingness to treat Medicaid-enrolled adolescents

OBJECTIVES

To identify factors influencing dentists' willingness to treat Medicaid-enrolled adolescents with intellectual and developmental disabilities in Washington state.

DATA SOURCES

Primary data were collected by a survey instrument administered in 2017 to general and pediatric dentists who were Medicaid providers (N = 512).

METHODS

We administered a 40-item survey, which included 20 hypothetical scenarios involving a 12-year-old Medicaid-enrolled adolescent. Based on the characteristics of the potential patient, dentists were asked to rate their willingness to treat (1 = very likely; 5 = very unlikely). We used conjoint analytic techniques to examine the relative importance of six adolescent- and family-level factors (e.g., severity of intellectual and/or developmental disability [IDD], sugar intake, toothbrushing, caregiver beliefs about fluoride, restorative needs, appointment keeping) and state Medicaid reimbursement level (35 percent, 55 percent, 85 percent of usual, customary, and reasonable amount). Analyses focused on data from 178 dentists with complete and varied responses to the scenarios.

RESULTS

The mean age of participants was 53.8 ± 10.5 years and 10.7 percent were pediatric dentists. The holdouts correlation statistics indicated excellent fit for the conjoint model (Pearson's R = 0.99, P < 0.0001; Kendall's tau = 0.89, P < 0.0001). Reimbursement level and appointment keeping were the most important factors in dentists' willingness to treat Medicaid-enrolled adolescents (importance scores of 26.7 and 25.7, respectively). Restorative needs, caregiver beliefs about fluoride, and IDD severity were the next most important (importance scores of 15.4, 10.6, and 8.1, respectively). Sugar intake and toothbrushing behaviors were the least important.

CONCLUSIONS

Reimbursement and appointment keeping were the most important determinants of dentists' willingness to treat Medicaid-enrolled adolescents with IDD.