Countries With Public Dental Care Coverage Have Lower Social Inequalities in the Use of Dental Services Than Countries Without Such Coverage

Indicators of integrating oral health care within universal health coverage and general health care in low-, middle-, and high-income countries: a scoping review

BACKGROUND

The World Health Organization (WHO) has recently devoted special attention to oral health and oral health care recommending the latter becoming part of universal health coverage (UHC) so as to reduce oral health inequalities across the globe. In this context, as countries consider acting on this recommendation, it is essential to develop a monitoring framework to measure the progress of integrating oral health/health care into UHC. This study aimed to identify existing measures in the literature that could be used to indicate oral health/health care integration within UHC across a range of low-, middle- and high-income countries.

METHODS

A scoping review was conducted by searching MEDLINE via Ovid, CINAHL, and Ovid Global Health databases. There were no quality or publication date restrictions in the search strategy. An initial search by an academic librarian was followed by the independent reviewing of all identified articles by two authors for inclusion or exclusion based on the relevance of the work in the articles to the review topic. The included articles were all published in English. Articles concerning which the reviewers disagreed on inclusion or exclusion were reviewed by a third author, and subsequent discussion resulted in agreement on which articles were to be included and excluded. The included articles were reviewed to identify relevant indicators and the results were descriptively mapped using a simple frequency count of the indicators.

RESULTS

The 83 included articles included work from a wide range of 32 countries and were published between 1995 and 2021. The review identified 54 indicators divided into 15 categories. The most frequently reported indicators were in the following categories: dental service utilization, oral health status, cost/service/population coverage, finances, health facility access, and workforce and human resources. This study was limited by the databases searched and the use of English-language publications only.

CONCLUSIONS

This scoping review identified 54 indicators in a wide range of 15 categories of indicators that have the potential to be used to evaluate the integration of oral health/health care into UHC across a wide range of countries.

'Caries disease among an elderly population-A 10-year longitudinal study'

OBJECTIVES

To investigate the prevalence of dental caries and to identify risk factors for dental caries in an elderly population between 2008 and 2018.

METHODS

This longitudinal study used data from a questionnaire survey and a clinical examination administered on two occasions 10 years apart to 273 individuals who were 65 and 75 years of age in 2008. The variables included were prevalence of dental caries as well as socioeconomic and socio-behavioural factors.

RESULTS

The number of teeth decreased in both age groups by a mean of 2 over the 10-year study period, but the prevalence of dental caries remained stable. Approximately, a quarter of the participants had caries lesions. Toothbrushing once a day or less was the factor most strongly correlated with dental caries lesions (OR: 3.82, 95% CI: 1.68-8.66, p = 0.001), followed by need for homecare (OR: 3.50, 95% CI: 1.55-7.93, p = 0.003) and interproximal cleaning less than once a day (OR: 2.65, 95% CI: 1.36-5.19, p = 0.004).

CONCLUSIONS

This longitudinal study revealed no increase in the prevalence of dental caries lesions, indicating that good oral health can be preserved among elderly people. The highest risk for dental caries lesions was among participants with inadequate oral hygiene routines (toothbrushing once a day or less and seldom using interproximal devices) and in need of help in daily living, emphasizing the importance of oral hygiene and collaboration between dental services and community-based health care.

Socioeconomic inequality in dental care utilization in Iran: a decomposition approach

PURPOSE

Socioeconomic inequalities in dental care utilization in Iran are rarely documented. This study aimed to provide insight into socioeconomic inequalities in dental care utilization and its main contributing factors among Iranian households.

DESIGN/METHODOLOGY/APPROACH

A total of 37,860 households from the 2017 Household Income and Expenditure Survey (HIES) were included in the study. Data on dental care utilization, age, gender and education attainment of the head of household, socioeconomic status of households, health insurance coverage, living areas and provinces were obtained for the survey. The concentration curve and the normalized concentration index (C_n) was used to illustrate and quantify socioeconomic inequalities in dental care utilization among Iranian households. The C_n was decomposed to identify the main determinants of the observed socioeconomic inequality in dental care utilization in Iran.

FINDINGS

The study indicated that the prevalence of dental care utilization among Iranian's households was 4.67% (95% confidence interval [CI]: 4.46 to 4.88%). The results suggested a higher concentration of dental care utilization among socioeconomically advantaged households (C_n = 0.2522; 95% CI: 0.2258 to 0.2791) in Iran. Pro-rich inequality in dental care utilization also found in rural (C_n = 0.2659; 95%CI: 0.2221 to 0.3098) and urban (C_n = 0.0.2504; 95% CI: 0.0.2159 to 0.2841) areas. The results revealed socioeconomic status of households, age and education status of head of households and residing provinces as the main contributing factors to the concentration of dental care utilization among the wealthy households.

ORIGINALITY/VALUE

This study revealed pro-rich inequalities in dental care utilization among households in Iran and its provinces. Thus, health policymakers should focus on designing effective evidence-based interventions to improve healthcare utilization among household with the older head of households, lower education status, and living in relatively poor provinces to reduce socioeconomic inequality in dental care utilization in Iran.

Dental care use by immigrant Canadians in Ontario: a cross-sectional analysis of the 2014 Canadian Community Health Survey (CCHS)

BACKGROUND

Ontario is home to the largest number of immigrants in Canada. However, very little is known about their dental care utilization patterns. The purpose of this study is to determine the prevalence of poor dental health care use among the immigrant population of Ontario and how various socio-demographic, socio-economic and health-related factors are associated with it.

METHODS

Analysis was performed on a total of 4208 Ontarian immigrants who participated in the dental care module of the 2014 cycle of the Canadian Community Health Survey. Poor dental care use was defined by the two variables: not visiting the dentist in the past year and/or visiting the dentist only for emergency purposes. Multivariable logistic regression was performed to assess the associations between the two outcomes and the socio-demographic, socio-economic and health-related factors.

RESULTS

Thirty three percent of immigrants reported not visiting the dentist in the past year and 25% reported visiting only for emergencies. The leading components associated with poor dental care utilization were being a new immigrant, of male gender, having low educational attainment, low household income and lacking dental insurance.

CONCLUSIONS

This study is the first to highlight oral health care use patterns amongst immigrants in Ontario. Given that a large proportion of the immigrant population in Ontario have poor dental care use, education and outreach programs informing incoming immigrants of preventative dental care may improve overall dental health.

Assessment of public oral healthcare services in Curitiba, Brazil: a cross-sectional study using the Primary Care Assessment Tool (PCATool)

OBJECTIVES

To compare two different models of public oral health in primary care services, a so-called family health strategy (FHS), as opposed to non-FHS services designated as 'conventional' healthcare (CHC), regarding the presence and extent of the attributes of 'good' primary healthcare (PHC). The null hypothesis of this study is that the attributes do not differ between the FHS and CHC.

DESIGN

Cross-sectional.

SETTING

Public PHC services in Curitiba, the state capital of Paraná.

PARTICIPANTS

PHC users of the public oral health network (n=900) and dentists active in this municipal network (n=203).

PRIMARY AND SECONDARY OUTCOME MEASURES

The Primary Care Assessment Tool (PCATool)-Dentists and PCATool-Users were used to analyse the primary outcomes ('essential' attributes) and secondary outcomes ('derived' attributes) in the PHC.

RESULTS

Overall, the primary care services in oral health were well evaluated, both by users and by dentists, with mean scores ascribed to PHC attributes mostly above the cut-off point (6.6). The exception for users were affiliation (6.36; 95% CI 6.11 to 6.60) and accessibility (5.83; 95% CI 5.78 to 5.89); and for dentists the accessibility (5.80; 95% CI 5.63 to 5.96). When comparing FHS and CHC, there was a superiority of the FHS model, which reached a general mean score of 7.53 (95% CI 7.48 to 7.58) among users and 7.56 (95% CI 7.45 to 7.67) among dentists; on the other hand, the CHC general mean score was of 6.61 (95% CI 6.49 to 6.73) and 6.68 (95% CI 6.56 to 6.80) respectively for users and dentists.

CONCLUSIONS

The results reveal a reasonable level of attainment of PHC attributes in the services investigated. Nevertheless, public health managers should make efforts to reduce the difficulties faced by users in accessing dental care. The more positive results achieved by FHS services indicate that the provision of oral healthcare under this strategy should be expanded.

The impact of demographic, health-related and social factors on dental services utilization: Systematic review and meta-analysis

OBJECTIVES

Regular and/or preventive dental services utilization is an indicator of healthcare access and associated with improved health outcomes. We assessed the proportion of individuals regularly/preventively utilizing dental services, and how this was affected by demographic, health-related and social factors.

SOURCES

Three electronic databases (Medline, Embase, Central) were searched (2005-2017).

STUDY SELECTION

We included observational studies investigating the association between preventive/regular dental service utilization and age, oral and general health, edentulism, family structure and health literacy.

DATA

The proportion of individuals with regular/preventive utilization overall and in different sub-groups were extracted. Random-effects meta-analyses, with subgroup analyses by region, were performed. Meta-regression was used to assess whether and how associations changed with time and countries' human developmental status (HDI). 103 studies on 7,395,697 participants from 28 countries were included. The global mean (95% CI) proportion of individuals regularly/preventively utilizing dental services was 54% (50-59%). In countries with higher HDI, more individuals regularly/preventively utilized services (p < 0.001). Age did not have a significant impact on utilization in adults (OR = 1.00; 0.89-1.12). Utilization was significantly lower in younger than older children (OR = 0.52; 0.46-0.59), individuals with poorer general health (OR = 0.73; 0.65-0.80) and poorer oral health (OR = 0.64; 0.52-0.75), edentulous individuals (OR = 0.32; 0.23-0.41), and individuals with less supportive family structures (OR = 0.81; 0.73-0.89) or poor health literacy (OR = 0.41; 0.01-0.81). The observed differences within populations did not significantly change with time and were universally present.

CONCLUSIONS

Regular/preventive utilization varied widely between and within countries. Understanding and tackling the reasons underlying this may help to consistently improve utilization.

CLINICAL SIGNIFICANCE

Higher developmental status of countries is reflected in greater regular/preventive utilization of dental services. However, large demographic, health-related and social differences in utilization remain. These may contribute to dental health inequalities.

What should we expect from Switzerland's compulsory dental insurance reform?

BACKGROUND

A vast and heated debate is arising in Switzerland as a result of some recent citizens' initiatives aimed at introducing compulsory dental health care insurance. The Grand Conseils of the Vaud, Geneva, and Neuchâtel cantons recently approved three public initiatives and their citizens are expected to vote on the proposal in 2018. The process of collecting signatures has begun in several other cantons and the discussion has now moved to a national level.

DISCUSSION

At present, there is no scientific research that can help policy-makers and citizens to understand the main economic implications of such reform. We attempt to fill this gap by analysing three critical issues: the level and determinants of unmet needs for dental care in Switzerland; the protection of vulnerable individuals; and the economic sustainability of reform.

RESULTS AND SHORT CONCLUSIONS

The results show that income is not a unique determinant of barriers to access to dental care but rather, cultural and socio-demographic factors impact the perceived level of unmet dental care needs. The reform might only partially, if at all, improve the equity of the current system. In addition, the results show that the 1% wage-based contribution that the reform promoters suggest should finance the insurance is inadequate to provide full and free dental care to Swiss residents, but is merely sufficient to guarantee basic preventive care, whereas this could be provided by dental hygienists for less.

Inequality in Utilization of Dental Services: A Systematic Review and Meta-analysis

BACKGROUND

Dental diseases are among the most prevalent conditions worldwide, with universal access to dental care being one key to tackling them. Systematic quantification of inequalities in dental service utilization is needed to identify where these are most pronounced, assess factors underlying the inequalities, and evaluate changes in inequalities with time.

OBJECTIVES

To evaluate the presence and extent of inequalities in dental services utilization.

SEARCH METHODS

We performed a systematic review and meta-analysis by searching 3 electronic databases (MEDLINE, Embase, Cochrane Central Database), covering the period from January 2005 to April 2017.

SELECTION CRITERIA

We included observational studies investigating the association between regular dental service utilization and sex, ethnicity, place of living, educational or income or occupational position, or insurance coverage status. Two reviewers undertook independent screening of studies and made decisions by consensus.

DATA COLLECTION AND ANALYSIS

Our primary outcome was the presence and extent of inequalities in dental service utilization, measured as relative estimates (usually odds ratios [ORs]) comparing different (high and low utilization) groups. We performed random effects meta-analysis and subgroup analyses by region, and we used meta-regression to assess whether and how associations changed with time.

MAIN RESULTS

A total of 117 studies met the inclusion criteria. On the basis of 7 830 810 participants, dental services utilization was lower in male than female participants (OR = 0.85; 95% confidence interval [CI] = 0.74, 0.95; P < .001); ethnic minorities or immigrants than ethnic majorities or natives (OR = 0.71; 95% CI = 0.59, 0.82; P < .001); those living in rural than those living in urban places (OR = 0.87; 95% CI = 0.76, 0.97; P = .011); those with lower than higher educational position (OR = 0.61; 95% CI = 0.55, 0.68; P < .001) or income (OR = 0.66; 95% CI = 0.54, 0.79; P < .001); and among those without insurance coverage status than those with such status (OR = 0.58; 95% CI = 0.49, 0.68; P < .001). Occupational status (OR = 0.95; 95% CI = 0.81, 1.09; P = .356) had no significant impact on utilization. The observed inequalities did not significantly change over the assessed 12-year period and were universally present.

AUTHORS' CONCLUSIONS

Inequalities in dental service utilization are both considerable and globally consistent. Public Health Implications. The observed inequalities in dental services utilization can be assumed to significantly cause or aggravate existing dental health inequalities. Policymakers should address the physical, socioeconomic, or psychological causes underlying the inequalities in utilization.

Use of oral health care services in Finnish adults - results from the cross-sectional Health 2000 and 2011 Surveys

Background

During the 2000s, two major legislative reforms concerning oral health care have been implemented in Finland. One entitled the whole population to subsidized care and the other regulated the timeframes of access to care. Our aim was, in a cross-sectional setting, to assess changes in and determinants of use of oral health care services before the first reform in 2000 and after both reforms in 2011.

Methods

The data were part of the nationally representative Health 2000 and 2011 Surveys of adults aged ≥ 30 years and were gathered by interviews and questionnaires. The outcome was the use of oral health care services during the previous year. Determinants of use among the dentate were grouped according to Andersen’s model: predisposing (sex, age group), enabling (education, recall, dental fear, habitual use of services, household income, barriers of access to care), and need (perceived need, self-rated oral health, denture status). Chi square tests and logistic regression analyses were used for statistical evaluation.

Results

No major changes or only a minor increase in overall use of oral health care services was seen between the study years. An exception were those belonging to oldest age group who clearly increased their use of services. Also, a significant increase in visiting a public sector dentist was observed, particularly in the age groups that became entitled to subsidized care in 2000. In the private sector, use of services decreased in younger age groups. Determinants for visiting a dentist, regardless of the service sector, remained relatively stable. Being a regular dental visitor was the most significant determinant for having visited a dentist during the previous year. Enabling factors, both organizational and individual, were emphasized. They seemed to enable service utilization particularly in the private sector.

Conclusions

Overall changes in the use of oral health care services were relatively small, but in line with the goals set for the reform. Older persons increased use of services in both sectors, implying growing need. Differences between public and private sectors persisted, and recall, costs of care and socioeconomic factors steered choices between the sectors, sustaining inequity in access to care.

Towards an understanding of the structural determinants of oral health inequalities: A comparative analysis between Canada and the United States

Objective

To compare the magnitude of, and contributors to, income-related inequalities in oral health outcomes within and between Canada and the United States over time.

Methods

The concentration index was used to estimate income-related inequalities in three oral health outcomes from the Nutrition Canada National Survey 1970–1972, Canadian Health Measures Survey 2007–2009, Health and Nutrition Examination Survey I 1971–1974, and National Health and Nutrition Examination Survey 2007–2008. Concentration indices were decomposed to determine the contribution of demographic and socioeconomic factors to oral health inequalities.

Results

Our estimates show that over time in both countries, inequalities in decayed teeth and edentulism were concentrated among the poor and inequalities in filled teeth were concentrated among the rich. Over time, inequalities in decayed teeth increased and decreased for measures of filled teeth and edentulism in both countries. Inequalities were higher in the United States compared to Canada for filled and decayed teeth outcomes. Socioeconomic characteristics (education, income) contributed greater to inequalities than demographic characteristics (age, sex). As well, income contributed more to inequalities in recent surveys in both Canada and the United States.

Conclusions

Inequalities in oral health have persisted over the past 35 years in Canada and the United States, and are associated with age, sex, education, and income and have varied over time.

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Highlights changes and contributors to oral health inequalities in Canada and the U.S. since 1970.

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Provides a comparative framework for analysing income-related oral health inequalities.

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Hypotheses-generating findings on contributors to income-related oral health inequalities.