Impact of Medicaid Policy on the Oral Health of Publicly Insured Children

Policy interventions to improve the accessibility and affordability of Dutch dental care. A scoping review of effective interventions

Caries and periodontitis remain prevalent in the Netherlands. Given the assumption that increasing the accessibility and affordability of dental care can improve oral health outcomes, policy interventions aimed at improving these aspects may contribute to better oral health. To identify possible solutions, this scoping review firstly identifies policy interventions from around the world that have effectively improved the accessibility or affordability of dental care. Secondly, this review discusses the potential of the policy interventions identified that are applicable to the Dutch healthcare sector specifically. A literature search was performed in four databases. Two reviewers independently screened all potentially relevant titles and abstracts before doing the same for the full texts. Only studies that had quantitatively evaluated the effectiveness of policy interventions aimed at improving the accessibility or affordability of dental care were included. 61 of the 1288 retrieved studies were included. Interventions were grouped into four categories. Capacity interventions (n = 5) mainly focused on task delegation. Coverage interventions (n = 25) involved the expansion of covered dental treatments or the group eligible for coverage. Managed care interventions (n = 20) were frequently implemented in school or community settings. Payment model interventions (n = 11) focused on dental reimbursement rates or capitation. 199 indicators were identified throughout the 61 included studies. Indicators were grouped into three categories: accessibility (n = 137), affordability (n = 21), and oral health status (n = 41). Based on the included studies, increasing managed care interventions for children and adding dental coverage to the basic health insurance plan for adults could improve access to dental care in the Netherlands. Due to possible spillover effects, it is advisable to investigate a combination of these policy interventions. Further research will be necessary for the development of effective policy interventions in practice.

Access to restorative oral health care for children living in Illinois with Medicaid vs private dental insurance: An audit study

BACKGROUND

Public dental insurance programs for children aim to provide access to care, but barriers remain that preclude care delivery. Understanding these barriers is an important health policy concern.

METHODS

A telephone audit sought to ascertain availability of oral health care for children in dental offices eligible to bill Medicaid. Female callers posing as mothers called eligible offices requesting appointments. In this cross-over design, offices were randomized to public or private insurance for initial calls and then to the other condition after a washout period.

RESULTS

Using mixed models, privately insured patients had 5.9 times (95% CI, 4.55 to 7.69) greater odds of obtaining an appointment than Medicaid patients. Compared with patients in Cook County, suburban patients had slightly better odds, whereas nonurban patients in larger and smaller rural counties had lower odds of success.

CONCLUSIONS

Medicaid compares poorly with private insurance for providing access to pediatric oral health care. Regardless of insurance conditions, access is poor in less urban environments compared with metropolitan communities.

PRACTICAL IMPLICATIONS

Even Medicaid-enrolled dental practices limit the care they extend to insured children. Providing Medicaid by itself cannot overcome large oral health care access disparities, which are greatest in rural communities.

Impact of oral health integration training on children's receipt of oral assessment, fluoride varnish and dental services

OBJECTIVES

To evaluate the impact of an oral health integration training program on children's receipt of oral health and dental services in Southern Oregon.

METHODS

Children under 19 years with at least 6 months of Medicaid enrolment and at least one healthcare visit from 2014 to 2018 were included. The treatment group included children with at least one visit with a trained provider (n = 5541); children with no visits with trained providers (n = 8273) were the control group. The percentage of the treatment group who received oral health assessments was calculated, and regression models were developed to estimate the difference in likelihood of receiving fluoride varnish and dental services between treatment and control groups.

RESULTS

The percentage of children receiving oral health assessments increased over time. Visiting a trained provider was consistently associated, each year, with a greater likelihood of receipt of fluoride varnish and preventive and diagnostic dental services but was not associated with treatment dental services or dental sealants.

CONCLUSIONS

This study reports evidence for the overall impact of an oral health integration training on children's receipt of oral and dental services. Health systems implementing these types of training strategies should consider how to reach specific underserved subgroups, increase paediatric dentists, and expand efforts to include older children.

Impact of state-level training requirements for medical providers on receipt of preventive oral health services for young children enrolled in Medicaid

OBJECTIVES

Young children enrolled in Medicaid make few dental visits and have high rates of tooth decay. To improve access to care, state Medicaid programs have enacted policies encouraging nondental providers to deliver preventive oral health services (POHS) in medical offices. Policies vary by state, with some states requiring medical providers to obtain training prior to delivering POHS. Our objective was to test whether these training requirements were associated with higher rates of POHS for Medicaid-enrolled children <6 years.

METHODS

This study took advantage of a natural experiment in which policy enactment occurred across states at different times. We used Medicaid Analytic eXtract enrollment and claims data, public policy data, and Area Health Resource Files data. We examined an unweighted sample of 8,711,192 (45,107,240 weighted) Medicaid-enrolled children <6 years in 38 states from 2006 to 2014. Multivariable logistic regression models estimated the odds a child received POHS in a calendar year. Results are presented as adjusted probabilities.

RESULTS

Five or more years after policy enactment, the probability of a child receiving POHS in medical offices was 10.7 percent in states with training requirements compared to 5.0 percent in states without training requirements (P = 0.01). Findings were similar when receipt of any POHS in medical or dental offices was examined 5 or more years post-policy-enactment (requirement = 42.5 percent, no requirement = 33.6 percent, P < 0.001).

CONCLUSIONS

Medicaid policies increased young children's receipt of POHS and at higher rates in states that required POHS training. These results suggest that oral health training for nondental practitioners is a key component of policy success.

Impact of the Affordable Care Act Medicaid expansion on oral surgery delivery at community health centers: an observational study

BACKGROUND

Unmet oral health needs routinely affect low-income communities. Lower-income adults suffer a disproportionate share of dental disease and often cannot access necessary oral surgery services. The Affordable Care Act (ACA) Medicaid expansion created new financial opportunities for community health centers (CHCs) to provide mission-relevant services in low-income areas. However, little is understood in the literature about how the ACA Medicaid expansion impacted oral surgery delivery at CHCs. Using a large sample of CHCs, we examined whether the ACA Medicaid expansion increased the likelihood of oral surgery delivery at expansion-state CHCs compared to non-expansion-state CHCs.

METHODS

Exploiting a natural experiment, we estimated Poisson regression models examining the effects of the Medicaid expansion on the likelihood of oral surgery delivery at expansion-state CHCs relative to non-expansion-state CHCs. We merged data from multiple sources spanning 2012-2017. The analytic sample included 2054 CHC-year observations.

RESULTS

Compared to the year prior to expansion, expansion-state CHCs were 13.5% less likely than non-expansion-state CHCs to provide additional oral surgery services in 2016 (IRR = 0.865; P = 0.06) and 14.7% less likely in 2017 (IRR = 0.853; P = 0.02). All else equal, and relative to non-expansion-state CHCs, expansion-state CHCs included in the analytic sample were 8.7% less likely to provide oral surgery services in all post-expansion years pooled together (IRR = 0.913; P = 0.01).

CONCLUSIONS

Medicaid expansions can provide CHCs with opportunities to expand their patient revenue and services. However, whether because of known dental treatment capacity limitations, new competition, or coordination with other providers, expansion-state CHCs in our study sample were less likely to provide oral surgery services on the margin relative to non-expansion-state CHCs following Medicaid expansion.

Outcomes Associated With State Policies Enabling Provision of Oral Health Services in Medical Offices Among Medicaid-enrolled Children

BACKGROUND

To increase receipt of preventive oral health services (POHS), all state Medicaid programs have enacted policies to encourage nondental providers to deliver POHS in medical offices. This study examined if these Medicaid policies improved oral health, as measured by reductions in dental visits with treatment and preventable emergency department (ED) visits for nontraumatic dental conditions (NTDC).

METHODS

Using data on children aged 6 months to up to 6 years from 38 state Medicaid programs during 2006-2014, we used a generalized difference-in-differences estimation approach to examine the probability of a child having, in a year, any dental visits with caries-related treatment and any ED visits for NTDC, conditional on length of policy enactment. Models included additional child-level and county-level characteristics, state and year fixed effects, probability weights, and clustered standard errors.

RESULTS

Among a weighted sample of 45,107,240 child/year observations, 11.7% had any dental visits with treatment and 0.2% had any ED visits for NTDC annually. Children in states with and without medical POHS policies had similar odds of having any dental visits with treatment, regardless of length of policy enactment. Children in states with medical POHS policies enacted for one or more years had significantly greater odds of having any ED visits for NTDC (P<0.05).

CONCLUSIONS

State policies making POHS available in medical offices did not affect rates of dental visits with caries-related treatment, but were associated with increased rates of potentially avoidable ED visits for NTDC. Findings suggest that many young Medicaid-enrollees lack access to dentists.

Racial/Ethnic Differences in Receipt of Oral Health Services in Medical and Dental Offices: Impact of Medicaid Policies on Young Children

Purpose: The purpose of this study was to examine receipt of preventive oral health services (POHS) by race/ethnicity for young Medicaid-enrollees following the enactment of state policies enabling medical providers to deliver POHS. Methods: Using Medicaid data (2006 to 2014) from 38 states for 8,711,192 child-years (aged six months to five years), logistic regressions were used to examine differences within and between racial/ethnic groups (white, black, Hispanic, and "other" race/ethnicity groups) in terms of adjusted probabilities of receiving POHS in medical offices or any medical or dental offices. Models were adjusted for years since policy enactment and estimated separately for states with and without requirements that medical providers obtain POHS training. Results: Receipt of any POHS was 10.9 percentage points higher for Hispanic children and 4.7 percentage points higher for "other" race/ethnicity group children than white children after five or more years of policy enactment in states with training requirements (P<0.05). Findings for medical POHS and states without training requirements were similar but smaller in magnitude. Conclusions: Hispanic and "other" race/ethnicity group children benefitted more from the integration of POHS into medical offices than white children. Policies enabling delivery of POHS in medical offices increased receipt of POHS among some minority groups and may help to reduce disparities.

Community Health Centers Maintained Initial Increases in Medicaid Covered Adult Patients at 5-Years Post-Medicaid-Expansion

The Affordable Care Act (ACA) Medicaid expansion created new financial opportunities for community health centers (CHCs) providing primary care in medically-underserved communities. However, beyond evidence of initial policy effects, little is understood in the scholarly literature about whether the ACA Medicaid expansion affected longer-lasting changes in CHC patient insurance mix. This study's objective was to examine whether the ACA Medicaid expansion was associated with lasting increases in the annual percentage of adult CHC patients covered by Medicaid and decreases in the annual percentage of uninsured adult CHC patients at expansion-state CHCs, compared to non-expansion-state CHCs. This observational study examined 5353 CHC-year observations from 2012 to 2018 using Uniform Data System data and other national data sources. Using a 2-way fixed-effects multivariable regression approach and marginal analysis, intermediate-term policy effects of the Medicaid expansion on annual CHC patient coverage outcomes were estimated. By 5-years post-expansion, the Medicaid expansion was associated with an overall average increase of 11.7 percentage points in the percentage of adult patients with Medicaid coverage at expansion-state CHCs, compared to non-expansion-state CHCs. Among expansion-state CHCs, 39.8% of adult patients were predicted to have Medicaid coverage 5-years post-expansion, compared to 19.0% of non-expansion-state adult CHC patients. A state's decision to expand Medicaid was similarly associated with decreases in the annual percentage of uninsured adult CHC patients. Primary care operations at CHCs critically depend on patient Medicaid revenue. These findings suggest the ACA Medicaid expansion may provide longer-term financial security for expansion-state CHCs, which maintain increases in Medicaid-covered adult patients even 5-years post-expansion. However, these financial securities may be jeopardized should the ACA be ruled unconstitutional in 2021, a year after CHCs experienced new uncertainties caused by COVID-19.

Association between Medicaid expansion, dental coverage policies for adults, and children's receipt of preventive dental services

OBJECTIVE

To examine whether low-income children's use of preventive dental services is linked to variation in state Medicaid policies that affect parents' access to dental care in Medicaid.

DATA SOURCES

Medical Expenditure Panel Survey (2011-2016), Area Health Resources File, and Medicaid adult dental coverage policies.

STUDY DESIGN

We conducted a quasi-experimental analysis using linked parent-child dyads in low-income families (≤125 percent of the Federal Poverty Level). We assessed whether expansions of Medicaid to low-income adults under the Affordable Care Act were associated with increases in the use of preventive dental services among low-income children when state Medicaid programs did vs did not cover these services for adults.

PRINCIPAL FINDINGS

Over the study period, 37.8 percent of low-income children received at least one annual preventive dental visit. We found no change in children's receipt of preventive dental care associated with Medicaid expansions in states that covered (1.26 percentage points; 95% CI: -3.74 to 6.27) vs did not cover preventive dental services for adults (3.03 percentage points; 95% CI: -2.76 to 8.81). (differential change: -1.76 percentage points; 95% CI: -8.09, 4.56). However, our estimates are imprecise, with wide confidential intervals that are unable to rule out sizable effects in either direction.

CONCLUSION

We did not find an association between Medicaid expansions with concurrent coverage of preventive dental services for adults and children's use of these services. Factors other than parental access to dental benefits through Medicaid may be more salient determinants of preventive dental care use among low-income children.

Do Oral Health Services in Medical Offices Replace Pediatric Dental Visits?

In the United States, state Medicaid programs pay for medical and dental care for children from low-income families and support nondental primary care providers delivering preventive oral health services (POHS) to young children in medical offices ("medical POHS"). Despite the potential of these policies to expand access to care, there is concern that they may replace dental visits with medical POHS. Using Medicaid claims from 38 states from 2006 to 2014, we conducted a repeated cross-sectional study and used linear probability regression to estimate the association between the annual proportion of children in a county receiving medical POHS and the probability that a child received 1) dental POHS and 2) a dental visit in a given year. Models included county and year fixed effects and controlled for child- and county-level factors, and standard errors were clustered at the state level. In a weighted population of 45.1 million child-years (age, 6 mo to <6 y), we found no significant nor substantively important association between the proportion of children in a county receiving medical POHS and the probability that a child received dental POHS or a dental visit. Additionally, we found an almost zero probability (<0.001) that the reduction in dental POHS was at least as large as the expansion in medical POHS (full substitution) and a 0.50 probability that increased medical POHS was associated with an increase in dental POHS of at least 6.6% of the expansion of medical POHS. Results were similar when receipt of dental visits was examined. This study failed to find evidence that medical POHS replaced dental visits for young children enrolled in Medicaid and, in fact, offers evidence that increased medical POHS was associated with increased utilization of dental care. Given lower-than-desired rates of dental visits for this population, delivery of medical POHS should be expanded.

Disparities in Access to Oral Health Care

In the United States, people are more likely to have poor oral health if they are low-income, uninsured, and/or members of racial/ethnic minority, immigrant, or rural populations who have suboptimal access to quality oral health care. As a result, poor oral health serves as the national symbol of social inequality. There is increasing recognition among those in public health that oral diseases such as dental caries and periodontal disease and general health conditions such as obesity and diabetes are closely linked by sharing common risk factors, including excess sugar consumption and tobacco use, as well as underlying infection and inflammatory pathways. Hence, efforts to integrate oral health and primary health care, incorporate interventions at multiple levels to improve access to and quality of services, and create health care teams that provide patient-centered care in both safety net clinics and community settings may narrow the gaps in access to oral health care across the life course.

Impact of a Medicaid policy on preventive oral health services for children with intellectual disabilities, developmental disabilities, or both

BACKGROUND

Integrating preventive oral health services (POHS) into medical offices may ease access to care for children with intellectual and developmental disabilities (IDD). The authors examined the impact of state policies allowing delivery of POHS in medical offices on receipt of POHS among Medicaid enrollees with IDD.

METHODS

The authors used 2006 through 2014 Medicaid data for children with IDD aged 6 months through 5 years from 38 states. IDD were defined using 14 condition codes from Centers for Medicare & Medicaid Services Chronic Conditions Data Warehouse. The length of the state's medical POHS policy (no policy, < 1 year, 1 year, 2 years, 3 years, or ≥ 4 years) was interacted with an indicator that the child was younger than 3 years. The authors used logistic regression models to estimate the likelihood that a child received POHS in a medical office or in a medical or dental office in a given year.

RESULTS

Among 447,918 children with IDD, 1.6% received POHS in medical offices. Children younger than 3 years in states with longer-enacted policies had higher rates of receiving POHS. For example, the predicted probability of receiving POHS was 40.6% (95% confidence interval, 36.3% to 44.9%) for children younger than 3 years in states with a medical POHS policy for more than 4 years compared with 30.6% (95% confidence interval, 27.8% to 33.5%) for children in states without a policy.

CONCLUSIONS

State Medicaid policies allowing delivery of POHS in medical offices increased receipt of POHS among Medicaid-enrolled children with IDD who were younger than 3 years.

PRACTICAL IMPLICATIONS

Few children with IDD receive POHS in any setting. Efforts are needed to reduce barriers to POHS for publicly insured children with IDD.

Children's Oral Health and Academic Performance: Evidence of a Persisting Relationship Over the Last Decade in the United States

OBJECTIVE

To assess the association between children's oral health and academic performance using the most recent US national data, a decade after the last assessment using similar previous data.

STUDY DESIGN

Data from the 2016-2017 National Survey of Children's Health for 45 711 children aged 6-17 years were analyzed. Children's oral health measures were indicators of specific oral health problems and parent-rated oral health. Academic performance measures included problems at school and missing school days. Regression models were employed adjusting for relevant demographic, socioeconomic, and health characteristics and state effects. Analyses also were conducted stratifying by child's age, sex, household income, and type of health insurance.

RESULTS

We found significant associations across all the evaluated academic outcomes and oral health measures. Children with oral health problems were more likely to have problems at school (OR 1.56, 95% CI 1.32-1.85), miss at least 1 school day (OR 1.54, 95% CI 1.28-1.85), and miss more than 3 or 6 school days (OR 1.39, 95% CI 1.20-1.61 and OR 1.39, 95% CI 1.14-1.69; respectively). These associations were generally larger when using the child's oral health rating. Poor oral health was consistently related to worse academic performance across age, sex, household income, and health insurance type subgroups.

CONCLUSIONS

Children's oral health status continues to be strongly linked to their academic outcomes. This evidence highlights the need for broad population-wide policies and integrated approaches to reduce academic deficits and promote children's health and development, of which oral health is an important component.

Delivery of Preventive Oral Health Services by Rurality: A Cross-Sectional Analysis

PURPOSE

Integrating oral health care into primary care has been promoted as a strategy to increase delivery of preventive oral health services (POHS) to young children, particularly in rural areas where few dentists practice. Using a multistate sample of Medicaid claims, we examined a child's odds of receiving POHS in a medical office by county rurality.

METHODS

We used 2012-2014 Medicaid Analytic extract claims data for 6,275,456 children younger than 6 years in 39 states that allowed Medicaid payment for POHS in medical offices. We used county-level characteristics from the Area Health Resources Files, including a 3-level measure of county rurality. We used logistic regression to estimate a child's odds of receiving POHS in a medical office by county rurality, while controlling for other patient and county characteristics.

FINDINGS

POHS in medical offices were received by 7.8% of children. Rates of POHS in medical offices were higher in metropolitan (metro) counties (8.4%) than nonmetro adjacent to metro (5.8%) and nonmetro not adjacent to metro (4.3%). In adjusted analysis, children living in nonmetro not adjacent to metro (OR = 0.79, 95% CI: 0.64-0.99) and adjacent to metro counties (OR = 0.70, 95% CI: 0.59-0.82) were significantly less likely to receive POHS in medical offices than children living in metro counties.

CONCLUSIONS

In this study of POHS in medical offices among young Medicaid-enrolled children, we found POHS rates were lowest in nonmetro counties. Given barriers to dental care in rural areas, states should take additional steps beyond allowing Medicaid reimbursement to increase delivery of POHS in medical offices.