Children's Dental Sealant Use and Caries Prevalence Affected by National Health Insurance Policy Change: Evidence from the Korean National Health and Nutrition Examination Survey (2007-2015).

We evaluated the effect of the National Health Insurance (NHI) policy including dental sealant on changes in the prevalence of sealant and caries, and examined how NHI affected sealant utilization and untreated caries in children from diverse income groups in South Korea. We used a multivariate logistic regression analysis to explore the effects of three stages of dental sealant policy (pre-policy: 2007-2009, first post-policy: 2010-2012, and second post-policy: 2013-2015) on the prevalence of dental sealant and untreated caries. Participant data (N = 8161, aged 6-14 years) were derived from the Korea National Health and Nutrition Examination Survey (2007-2015). We also conducted subgroup analysis to determine the effects of the NHI policy on dental sealant and untreated caries by income level. Implementation of dental insurance coverage was associated with higher likelihood of using dental sealant (odds ratio (OR) = 1.39 (95% confidence interval (CI): 1.18-1.63) for the first period and OR = 1.58 (95% CI: 1.33-1.87) for the second period) and lower odds of having untreated caries (OR = 0.79 (95% CI: 0.64-0.98) for the first period and OR = 0.65 (95% CI: 0.51-0.83) for the second period) after controlling for covariates. Results revealed that there was a greater prevalence of dental sealant and a lower prevalence of untreated caries in both middle- and low-income households compared to high-income households. The higher prevalence of dental sealant and lower untreated caries after the policy implementation. Moreover, we demonstrated children from low-or middle-income households were more associated with increasing dental sealant use and a declining prevalence of caries.

Equity in children's dental caries before and after cessation of community water fluoridation: differential impact by dental insurance status and geographic material deprivation.

BACKGROUND: One of the main arguments made in favor of community water fluoridation is that it is equitable in its impact on dental caries (i.e., helps to offset inequities in dental caries). Although an equitable effect of fluoridation has been demonstrated in cross-sectional studies, it has not been studied in the context of cessation of community water fluoridation (CWF). The objective of this study was to compare the socio-economic patterns of children's dental caries (tooth decay) in Calgary, Canada, in 2009/10 when CWF was in place, and in 2013/14, after it had been discontinued. METHODS: We analyzed data from population-based samples of schoolchildren (grade 2) in 2009/10 and 2013/14. Data on dental caries (decayed, missing, and filled primary and permanent teeth) were gathered via open mouth exams conducted in schools by registered dental hygienists. We examined the association between dental caries and 1) presence/absence of dental insurance and 2) small area index of material deprivation, using Poisson (zero-inflated) and logistic regression, for both time points separately. For small-area material deprivation at each time point, we also computed the concentration index of inequality for each outcome variable. RESULTS: Statistically significant inequities by dental insurance status and by small area material deprivation were more apparent in 2013/14 than in 2009/10. CONCLUSIONS: Results are consistent with increasing inequities in dental caries following cessation of CWF. However, further research is needed to 1) confirm the effects in a study that includes a comparison community, and 2) explore possible alternative reasons for the findings, including changes in treatment and preventive programming.

Reimbursing dentists for smoking cessation treatment: views from dental insurers.

INTRODUCTION: Screening and delivery of evidence-based interventions by dentists is an effective way to reduce tobacco use. However, dental visits remain an underutilized opportunity for the treatment of tobacco dependence. This is, in part, because the current reimbursement structure does not support expansion of dental providers' role in this arena. The purpose of this study was to interview dental insurers to assess attitudes toward tobacco use treatment in dental practice, pros and cons of offering dental provider reimbursement, and barriers to instituting a tobacco use treatment-related payment policy for dental providers. METHODS: Semi-structured interviews were conducted with 11 dental insurance company executives. Participants were identified using a targeted sampling method and represented viewpoints from a significant share of companies within the dental insurance industry. RESULTS: All insurers believed that screening and intervention for tobacco use was an appropriate part of routine care during a dental visit. Several indicated a need for more evidence of clinical and cost-effectiveness before reimbursement for these services could be actualized. Lack of purchaser demand, questionable returns on investment, and segregation of the medical and dental insurance markets were cited as additional barriers to coverage. CONCLUSIONS: Dissemination of findings on efficacy and additional research on financial returns could help to promote uptake of coverage by insurers. Wider issues of integration between dental and medical care and payment systems must be addressed in order to expand opportunities for preventive services in dental care settings.

Michigan Medicaid's Healthy Kids Dental program: an assessment of the first 12 months.

BACKGROUND: In 2000, Michigan's Medicaid dental program initiated Healthy Kids Dental, or HKD, a demonstration program offering dental coverage to Medicaid-enrolled children in selected counties. The program was administered through a private dental carrier at private reimbursement levels. The authors undertook a study to determine the effect of these changes. METHODS: The authors obtained enrollment and utilization data for four groups: children covered in the first 12 months of HKD in 22 counties, children with private dental coverage in the same 22 counties in the same 12 months, Medicaid-enrolled children in the same 22 counties for 12 prior months, and Medicaid-enrolled children in 46 counties who were not included in the HKD program at any time. The authors compared access to care, dentists' participation, treatment patterns, patient travel distances and program cost. RESULTS: Under HKD, dental care utilization increased 31.4 percent overall and 39 percent among children continuously enrolled for 12 months, compared with the previous year under Medicaid. Dentists' participation increased substantially, and the distance traveled by patients for appointments was cut in half. Costs were 2.5 times higher, attributable to more children's receiving care, the mix of services shifting to more comprehensive care and payment at customary reimbursement levels. CONCLUSIONS: By increasing reimbursement levels and streamlining administration, the HKD demonstration program has shown that substantial improvements can be made to dental access for the Medicaid-enrolled population. PRACTICE IMPLICATIONS: The findings of this assessment suggest that appropriate attention to administration and payment levels can rapidly improve access for Medicaid-enrolled patients using existing dental personnel. By cooperating with state officials to design a program that addresses multiple issues, dental providers can help create a Medicaid dental program that is attractive to both providers and patients.

Capitation in dentistry: original concepts and current reality.

Modern dental capitation was conceived as being based on staff model group practice, receiving regular periodic payments to provide comprehensive care with few exclusions, limitations and copayments, to a given population. High utilization, completion and recall rates were expected. Examples are presented. The dominant form of capitation has become a network of solo and small group practices, usually with a for-profit intermediary. Premiums are low and administrative costs are high. There are many exclusions and limitations. Low utilization and under-treatment are endemic. Specific examples are presented. The reasons for this development include competition among dentists concerned about busyness, and predominance of cost control concerns over quality concerns on the part of purchasers.