Effects of universal oral healthcare coverage in an adult population: A long-term nationwide natural experiment

Oral health approach in universal health coverage

OBJECTIVE

This study aimed to map how oral health is addressed within the universal health coverage (UHC).

METHODS

This scoping review followed the Joanna Briggs Institute methodology. Searches included the WHO Library and PubMed, Scopus, Embase, LILACS, and Cochrane databases. Quantitative and qualitative studies were included without publication date and language restrictions.

RESULTS

A total of 486 studies were retrieved, of which 292 were excluded in the title and abstract screening phase; 121 full-texts were assessed. After the removal of duplicates and unavailable documents, 50 studies were included in the review and categorized according to the level of scientific evidence.

CONCLUSION

Few studies discussed oral health within the UHC, mostly because this coverage does not include oral health adequately. When offered, oral health packages are limited and include specific populations. Access and use of oral health services remain guided by economic factors, exposing the theoretical financial protectionism that perpetuates health inequalities.

A realist evaluation of policy interventions to reduce public subsidies of private dental care in Finland

OBJECTIVES

The Finnish dental care market operates as a dual system, divided between a regulated, affordable public sector and a less regulated, more expensive private sector that receives public subsidies. In 2015 and 2016, two policy interventions were introduced to reduce these subsidies for private dental services. The aim of this study was to evaluate the impact of these policy changes on the dental care market.

METHODS

This study was a realist evaluation. Context-Intervention-Mechanism-Outcome-configurations were applied to elicit an initial program theory (IPT) for the policy interventions. The IPT allowed a complicated system to be reduced to the main components, allowing for better understanding of the underlying mechanisms and the chain of events started by the interventions. The resulting hypotheses about the chain of events and outcomes were tested against a dataset collected from the Social Insurance Institution of Finland (SII) registries on public and private dental visits in the cities of Espoo, Helsinki and Oulu during the years 2010-2016. The used dataset consisted of N = 17 111 625 dental procedures or N = 8 139 990 individual visits (which can include several procedures) at a public (n = 9 097 407 procedures, n = 4 083 475 visits) or a private (n = 8 014 218 procedures or n = 4 056 515 visits) dental clinic. The system was studied during three time periods related to the two interventions in 2015 and in 2016. Changes were evaluated by statistically analysing changes in several key metrics: mean subsidy, mean out-of-pocket price, mean (non-subsidized) price, number of patients treated, number of professionals, procedures per professional, Case-Mix adjusted procedures per professional, patient-to-professional ratio, total procedures.

RESULTS

The 2015 and 2016 reductions to the subsidization of private dental care reduced the average subsidies paid to the private dental sector by 49% [-49.1, -38.8]. A 26% [25.2, 26.7] increase in the out-of-pocket price paid in the private sector was observed. Over the 2 years, 12.2% of patients left the private sector and an increase of 13% was observed in the number of patients treated in the public sector. The public sector increased its number of dental care professionals by 2.3% and the patient-to-professional ratio increased by 9.9% over the 2 years, while the private sector lost 4.6% of its dental care professionals and increased its prices by 4.0% [3.5, 4.5].

CONCLUSIONS

The policy changes had tangible effects on both the private and public sectors of the Finnish dental care market. By reducing subsidies, the private sector became more expensive for patients, causing many to transition to the public sector for their dental needs. While the public sector increased its capacity to accommodate the rise in patients, the demand still outpaced the growth in professionals, hinting at capacity or resource constraints in the public sector. The results also show initial evidence that contrary to the objectives, the policy changes increased the cost to the public sector as subsidized patient cared for in the private sector costs less to the government than treating that same patient in the public sector.

Does subsidizing the cost of care impact on dental attendance patterns among older adults?

OBJECTIVES

To assess whether eligibility for an age-related universal (pioneer generation [PG]) subsidy incentivises dental attendance by older Singaporeans.

METHODS

Data were collected between 2018 and 2021 from in-person interviews of Singaporean adults aged 60-90 years using a questionnaire and a clinical examination. The questionnaire included details of age, gender, ethnicity, education, residential status, socio-economic status, marital status, eligibility for subsidy (community health assistance/CHAS, PG or both) and frequency of dental attendance. The clinical examination recorded number of teeth (categorized as edentulous, 1-9 teeth;10-19 teeth; ≥20 teeth). To estimate the effect of the PG subsidy on dental attendance pattern, a regression discontinuity (RD) analysis was applied using age as the assignment variable.

RESULTS

A total of 1172 participants aged 60-90 years (64.2% female) were recruited, with 498 (43%) being eligible for the PG subsidy. For those eligible for PG subsidy, there was a higher proportion of regular attenders than irregular attenders (53.6% vs. 46.4%). In age adjusted RD analysis, those eligible for the PG subsidy were 1.6 (95% CI: 1.0, 2.7) times more likely to report regular attendance than their PG non-eligible counterparts. The association remained strong (OR 2.1; 95% CI: 1.1-3.7) even after further controlling for demographics, socioeconomic factors, number of teeth and eligibility for the CHAS subsidy.

CONCLUSIONS

Being eligible for the PG subsidy substantially increased the odds of regular dental attendance.

Trend in basic oral treatment needs in relation to taxation of sweets, ice cream, and sugar-sweetened beverages in Finland: a registry-based study

OBJECTIVE

The aims were to explore the trend in basic oral treatment needs and total operating cost of public dental services (PDS) in relation to total excise tax revenue generated from sugary products during 2011-2020 and to evaluate the impact of tax policy in excise tax revenue of sugary products and average sugar consumption.

METHODS

The study comprised longitudinal data retrieved from Finnish registries during the years 2011-2020. Basic oral treatment needs, and total operating cost of PDS, total excise tax revenue generated from sugary products and average sugar consumed (kg per capita) during the years 2011-2020 were obtained. Simplified panel analyses and sensitivity analyses were used to evaluate the effects of explanatory variables on outcomes.  Results: An approximate one EUR 1,000,000 increase in total excise tax revenue generated from sugary products corresponds to a 0.4% increase in total operating cost of PDS. There was a significant positive trend in total operating cost of PDS in Finland over the study period. Similarly, an approximate one EUR 1,000,000 rise in total excise tax revenue corresponds to a 0.2% increase in basic oral treatment needs. Additionally, there was a statistically significant difference in the average excise tax revenue for sugary products between the periods before and after 2017.

CONCLUSION

No change in average sugar consumption was observed despite implementing the new sugar policy. Therefore, it may be worthwhile to reconsider the excise tax on sweets and ice cream as it will significantly increase the total national revenues.