Assessing the role of dental insurance in oral health care disparities in Canadian adults

Background

This study examines the association of dental insurance with oral health care access and utilization in Canada while accounting for income and sociodemographic factors. It contributes to a baseline of oral health care disparities before the implementation of the Canadian Dental Care Plan (CDCP).

Data and methods

This retrospective study of Canadians aged 18 to 64 years is based on data from the 2022 Canadian Community Health Survey. Multivariable logistic regression was employed to evaluate the association of dental insurance with the recency and frequency of dental visits, as well as avoidance of dental care because of cost.

Results

Overall, 65.7% of Canadians reported visiting a dental professional in the previous year: 74.6% of those with private insurance, 62.8% with public insurance, and 49.8% uninsured. Cost-related avoidance of dental care was 16.0%, 20.9%, and 47.4% for the privately insured, publicly insured, and uninsured, respectively. After adjustment, adults with private (odds ratio [OR]=2.54; 95% confidence interval [CI]: 2.32 to 2.78) and public (OR=2.17; 95% CI: 1.75 to 2.68) insurance were more likely to have visited a dental professional in the last year compared with those without insurance. Similarly, both private (OR=0.22; 95% CI: 0.20 to 0.25) and public (OR=0.22; 95% CI: 0.17 to 0.29) insurance holders showed a significantly lower likelihood of avoiding dental visits because of cost when compared with uninsured individuals.

Interpretation

This study showed the significant association of dental insurance with access to oral health care in Canada, contributing to setting a critical benchmark for assessments of the CDCP's effectiveness in addressing oral health disparities.

Utilization of dental care and dentate status in diabetic and nondiabetic patients across US states: An analysis using the 2020 Behavioral Risk Factor Surveillance System

OBJECTIVE

This study examines the differences, by state, in dental care utilization and tooth retention between adults with and without diabetes mellitus (DM).

METHODS

We conducted a secondary analysis of data from the 2020 Behavioral Risk Factor Surveillance System, an annual, state-based, random telephone survey of noninstitutionalized US civilian adults. The predictor variable was DM status. The outcome variables were time since the last dental appointment and tooth loss. We utilized multiple multinomial logistic regression models followed by postestimation procedures to determine state-level adjusted proportions for dental visits within the last year and complete teeth retention among DM and non-DM adults.

RESULTS

Among adults with DM, 60.0% reported dentist visits within a year of survey participation, while 53.6% had complete tooth retention. As education and income levels increased, dental attendance and tooth retention increased among adults with DM. Most Southern states had a higher prevalence of DM, a lower proportion of dentist visits, and worse tooth retention among DM adults. Nationally, DM individuals were 4.3 percentage points less likely to visit a dentist and were 7 percent less likely to have complete teeth retention than non-DM adults. Compared with the national average, 25/50 states had greater disparities in dental visits between DM and non-DM adults, and 27/50 states had greater disparities in tooth loss between DM and non-DM adults.

CONCLUSION

State-level variations indicate geographical and dental coverage influences on DM and dental outcomes. There is a need for state-specific interventions to improve dental access and outcomes for adults with DM.

Influence of disabilities on state-level disparity in dental care utilization and tooth loss: Findings from the 2020 Behavioral Risk Factor Surveillance System

INTRODUCTION

The aim of this study is to describe the prevalence of disparity in access to dental care and tooth loss between US adults with and without disabilities at the state level.

METHODS

This secondary analysis included data from the 2020 Behavioral Risk Factor Surveillance System (BRFSS), a cross-sectional state-run annual telephone survey of noninstitutionalized US adults aged 18 years or older. The primary predictor, having any disability, was defined as reported difficulty in hearing, vision, cognition, mobility, self-care, or independent living. The two dental outcomes used were reported time since last dental visit and missing teeth status. We conducted descriptive analysis and multinomial regression models on weighted data to report the prevalence and state-level disparity in dental outcomes between individuals with and without disability.

RESULTS

Nationally, one in four adults reported a disability, with a disproportionately higher prevalence among females, Native Americans and lower education and income groups. The highest utilization of dental services within a year among individuals with disabilities was found in the Northwestern and Midwestern states. Western states had the highest proportion of individuals with disability to have had a recent dental visit and a complete dentition, while the Southern states had the lowest proportions. After adjusting for sociodemographic factors, 59.1% of individuals with disabilities had dental visits within a year, which is 8.0% points less than those without disabilities. Similarly, only 50.8% of individuals with a disability had complete tooth retention, which is 10.1% points less than individuals without disability. Regardless of the type of disability, adults with a disability were less likely to have visited the dentist in the past year or to have retained all of their teeth. Those with self-care disabilities had the lowest rates of both.

CONCLUSION

There were clear disparities in the utilization of dental care and dentate status among adults with disabilities at the state level. The findings from this study highlighted the necessity of finding local solutions to address the gap in dental care utilization and tooth loss between those with and without disability among the US population.

Adverse Childhood Experiences and Dental Care Utilization During Pregnancy: Findings from the North and South Dakota PRAMS, 2017-2021

Background

Research demonstrates adverse childhood experiences (ACEs)-i.e., experiences of abuse, neglect, and household dysfunction-adversely impact healthcare utilization over the life course. Several studies demonstrate that ACEs are related to lower dental care utilization in childhood and adolescence. However, limited research has explored the connection between ACEs and dental care utilization in adulthood, and no research has examined this relationship during pregnancy. The current study extends existing research by investigating the relationship between ACEs and dental care utilization during pregnancy.

Data

Data are from the 2017-2021 Pregnancy Risk Assessment Monitoring System (PRAMS) North Dakota and South Dakota (n = 7,391). Multiple logistic regression is used to examine the relationship between the number of ACEs and dental care utilization.

Findings

Relative to respondents with 0 ACEs, those with 4 or more ACEs were significantly less likely to report having dental care during pregnancy (OR = 0.745, 95% CI = .628, .883). By racial and ethnic background, the results showed that the significant associations are concentrated among White and Native American respondents.

Conclusions

The results suggest that exposure to 4 or more ACEs is associated with a significantly lower likelihood of dental care utilization in adulthood, and this relationship is concentrated among White and Native American respondents. Further investigations are necessary to understand the mechanisms underlying the relationship between ACEs and dental care utilization and replicate the findings in other geographic contexts.

Food deserts and dental care utilization in the United States

OBJECTIVES

Although food deserts are known to impact health and healthcare utilization, no research has investigated the relationship between food deserts and dental care utilization. This study aimed to fill this gap by assessing the relationship between living in a food desert and self-reported dental care utilization in the past year.

METHODS

Data are from the National Longitudinal Study of Adolescent to Adult Health (N = 10,495). The association between food deserts and dental care utilization was assessed using covariate-adjusted multiple logistic regression.

RESULTS

Living in a food desert was associated with higher odds of not utilizing dental care in the past year. This association was concentrated among high-poverty areas (≥20% poverty rate).

CONCLUSIONS

The current study is the first to assess the relationship between living in a food desert and dental care utilization. The findings demonstrate that individuals living in low-income urban food deserts may be at increased risk for not utilizing dental care.

Dental care utilization among developmentally disabled adolescents experiencing difficulty with decayed teeth: A population-level study

AIMS

To determine if adolescents with developmental disabilities (DDs) who experienced difficulty with dental caries differed by dental visits in the past 12 months and receipt of preventive services (fluoride treatment and dental sealants) during those visits compared to adolescents with no DDs or difficulty with dental caries.

METHODS AND RESULTS

A cross-sectional study was conducted using data of 91 196 adolescents aged 10-17 years from the 2016-2020 National Survey of Children's Health. Descriptive and bivariate statistics and multivariable regression models were conducted. We derived the odds ratio for visiting a dental office (OR: 0.76, 95% CI: 0.57-1.03, p = .07), receiving fluoride treatments (OR: 1.20, 95% CI: 1.01-1.43, p = .04), and dental sealants (OR: 1.44, 95% CI: 1.19-1.75, p < .001) for DD adolescents who experienced difficulty with dental caries compared to adolescents with no DDs or difficulty with dental caries.

CONCLUSIONS

DD adolescents who experienced difficulty with dental caries were more likely to receive fluoride treatments and sealants during dental visits but were equally likely to have a dental visit in the past 12 months than adolescents with no DDs or difficulty with dental caries.

Stressful life events, oral health, and barriers to dental care during pregnancy

OBJECTIVES

Poor oral health during pregnancy poses risks to maternal and infant well-being. However, limited research has documented how proximate stressful life events (SLEs) during the prenatal period are associated with oral health and patterns of dental care utilization.

METHODS

Data come from 13 states that included questions on SLEs, oral health, and dental care utilization in the Pregnancy Risk Assessment Monitoring System for the years 2016-2020 (n = 48,658). Multiple logistic regression analyses were used to assess the association between levels of SLE (0, 1-2, 3-5, or 6+) and a range of (1) oral health experiences and (2) barriers to dental care during pregnancy while controlling for socio-demographic and pregnancy-related characteristics.

RESULTS

Women with more SLEs in the 12 months before birth-especially six or more-reported worse oral health experiences, including not having dental insurance, not having a dental cleaning, not knowing the importance of caring for teeth and gums, needing to see a dentist for a problem, going to see a dentist for a problem, and unmet dental care needs. Higher levels of SLEs were also associated with elevated odds of reporting barriers to dental care.

CONCLUSIONS

SLEs are an essential but often understudied risk factor for poor oral health, unmet dental care needs, and barriers to dental care services. Future research is needed to understand better the mechanisms linking SLEs and oral health.

Oral Health Factors Related to Rapid Oral Health Deterioration among Older Adults: A Narrative Review

Older adults who face systemic health issues and lack adequate social support are at risk for oral health deterioration. How rapidly such changes take place depends on the severity of their medical condition and their ability to access oral health services in a timely manner. The management of dental caries and periodontal disease in this cohort is made complex by the interaction of local and host factors such as the presence of dry mouth, involvement of root surfaces, and altered wound healing. in addition to enhanced maintenance needs to avoid recurrence or progression. Tooth replacement can be beneficial in restoring oral function, allowing patients to enjoy a healthy and nutritious diet but requires careful consideration to avoid further damage to remaining dental units. Establishing a dental home for the older adult can facilitate routine surveillance, disease prevention, and patient/caregiver education to achieve oral health goals commensurate with overall health. This narrative review details oral health factors that are related to rapid oral health deterioration among older adults.

Adolescents and oral health service utilization in Canterbury, New Zealand: A geospatial cross-sectional study

OBJECTIVE

Non-utilization of dental care during adolescence can result in poorer oral health and subsequently higher expenditures on dental services. This study examined the geospatial and epidemiological factors associated with utilization of the publicly funded Adolescent Oral Health Services (AOHS) in Canterbury, Aotearoa New Zealand (NZ).

METHODS

A secondary analysis of prospectively collected routine data from AOHS visits of adolescents in school Year 9 (13-14 years) for the financial year 2019-2020. Geographic information systems examined distance from home to dental practices. Multilevel mixed-effects Poisson regression models investigated associations between geospatial, demographic and clinical factors and non-utilization of dental services. Models were adjusted for sex, ethnicity, area-level deprivation, rural/urban classification, previous caries experience and the distance from home address to dental practice referred.

RESULTS

Dental practices were concentrated in large urban areas and in the least deprived neighbourhoods, with several service area gaps identified. Rural areas and the most deprived areas of Christchurch City had the highest non-utilization rates. After adjustment, adolescents residing in the most deprived areas had a higher risk of non-utilization (adjusted risk ratio [aRR] = 1.38; 95% CI 1.26-1.51) compared to adolescents in the least deprived areas. Adolescents in remote areas also had an increased risk of non-utilization (aRR = 1.36; 95% CI 1.20-1.54) compared to adolescents in urban core areas. Finally, Māori (aRR = 1.37; 95% CI 1.29-1.46) and Pasifika (aRR = 1.46; 95% CI 1.35-1.59) adolescents had significantly higher risks of non-utilization compared to their NZ European counterparts.

CONCLUSION

Inequitable utilization of dental services exists among adolescents in Canterbury, NZ, and is associated with Māori, Pasifika and those living in rural and most deprived areas. Adolescents at the greatest oral health risk are geographically underserved by current oral health services. The current health system should also explore the possibility of partnering with Māori and Pasifika communities to provide services within culturally appropriate settings.

Racial and oral health disparity associated with perinatal oral health care utilization among underserved US pregnant women

OBJECTIVE

The study aims to identify specific determinants of dental care utilization during the perinatal period (prenatal and 1-year postnatal) among underserved US women residing in Upstate New York.

METHOD AND MATERIALS

The prospective cohort study included 186 low-income US pregnant women. Demographic-socioeconomic parameters and medical-dental conditions were obtained from questionnaires, electronic medical-dental records, and dental examinations. Multivariate regression analyses were used to assess factors associated with perinatal dental care utilization. As an exploratory effort, a separate logistic model assessed factors associated with adverse birth outcomes.

RESULTS

The results demonstrated unmet oral health needs among the underserved US pregnant women residing in Upstate New York. Despite an average of 2.7 ± 3.6 untreated decayed teeth per person during pregnancy, only 39.3% and 19.9% utilized prenatal and 1-year postnatal dental care, respectively. Previous dental care utilization was a notable factor contributing to a higher uptake of perinatal dental care at a subsequent period. Prenatal dental care utilization was significantly lower among African American women (odds ratio 0.43 [95% CI 0.19, 0.98], P = .04) and positively associated with dental caries severity (OR 2.40 [1.09, 5.12], P = .03). Postnatal utilization was associated with caries severity (OR 4.70 [1.73, 12.74], P = .002) and prevalent medical conditions (hypertension, diabetes mellitus, and emotional conditions). Pregnant women who achieved prenatal caries-free status had a lower odds of experiencing adverse birth outcomes; however, this was an insignificant finding due to limited adverse birth cases.

CONCLUSION

Racial and oral health disparity is associated with perinatal oral health care utilization among underserved US pregnant women in New York. While both prenatal and postnatal dental care utilization was positively associated with oral health status, specifically, postnatal utilization was driven by existing medical conditions such as emotional condition, hypertension, and diabetes mellitus. The results add to existing information on inherent barriers and postulated needs to improve access to perinatal oral care, thereby informing statewide recommendations to maximize utilization. Considering this is a geographically restricted population, the findings are particularly true to this cohort of underserved pregnant women. However, future more robust studies are warranted to assess effective strategies to further improve perinatal dental care utilization among underserved pregnant women.

Socioeconomic-related inequality in dental care utilization among preschool children in China

OBJECTIVES

This study aimed to investigate socioeconomic-related inequality in dental care service utilization in the past 12 months among Chinese preschool children and to explore the contribution of various factors to this inequality.

METHOD

A total of 40 305 children aged 3-5 years from 372 kindergartens who participated in the Fourth National Oral Health Survey in China were included in the final analysis. The method of data weighting in complex sampling was adopted to make the samples more representative. Erreygers-corrected concentration index (EI) was used to measure socioeconomic-related inequality in dental care service utilization. The horizontal inequality index (HI) was employed to analyse horizontal inequality. Decomposition analyses were conducted to explore the contributions of income level, need variables (dmft, caregiver-evaluated oral health status and toothache experience) and nonneed variables (caregiver education level, residential location, age, and sex) to the inequality of health service utilization.

RESULT

The utilization of oral health services within the past 12 months among the high-, middle- and low-income groups was 17.4% (95% CI: 15.6-19.3), 13.6% (95% CI: 12.2-15.1) and 9.4% (95% CI: 8.1-11.0) respectively. The concentration curve was below the line of equality, and the EI and HI were 0.072 and 0.078, respectively, indicating that dental care utilization in children aged 3-5 years was concentrated in those who were better off. The contribution of the need variables to socioeconomic-related inequality in dental services was minimal, and most dental care utilization inequality could be explained by household income, caregiver education attainment and urban-rural disparities, accounting for 32.0%, 49.4% and 20.4% respectively.

CONCLUSION

This study reveals the existence of pro-rich inequality in dental care utilization among preschool children in China. The decomposition analysis suggests that income, caregiver education background and urban-rural disparities are the main factors contributing to this outcome. Equity-oriented policies and programmes are needed to achieve equitable dental care utilization.

Regional Inequality in Dental Care Utilization in Japan: An Ecological Study Using the National Database of Health Insurance Claims

BACKGROUND

This study examined regional inequalities in dental care utilization in Japan and the association of dental care utilization with socioeconomic factors.

METHODS

Using the Fourth National Database of Health Insurance Claims and Specific Health Checkups of Japan Open data, this ecological study analyzed 216 million pieces of aggregated data from April 2017 to March 2018. Nine indicators of dental care utilization were used: outpatient visits, outreach services, cavity fillings, pulpectomies, dental calculus removals, periodontal surgeries, tooth extractions, dental bridges, and dentures. Standardized claim ratios (SCRs) for these indicators were calculated for Japan's 47 prefectures, which were divided into three groups based on the number of dental clinics per population, average income per capita, and the proportion of university enrollments. Associations of the dental care utilization with dental supply and regional socioeconomic factors were examined.

FINDINGS

The ratios of maximum to minimum of SCRs were 1·4 for outpatient visits, 19·3 for outreach services, and 17·6 for periodontal surgeries. Dental supply was positively associated with outpatient visits, outreach services, dental calculus removal, and periodontal surgeries. Regional average income and educational level were positively associated with dental calculus removals, and negatively associated with pulpectomies, tooth extractions, dental bridges, and dentures.

INTERPRETATION

In Japan, regional inequalities in dental care utilization exist for periodontal care and outreach services but are smaller for urgent and substantial dental care. Regional income and educational levels appear to have influence on dental care utilization.

FUNDING

Ministry of Health, Labour and Welfare of Japan (H31-19FA1001).

Factors Associated with Dental Service Use Based on the Andersen Model: A Systematic Review

Background: A systematic review synthesizing studies examining the determinants of dental service use drawing on the (extended) Andersen model is lacking. Hence, our purpose was to fill this knowledge gap; Methods: Three established electronic databases (PubMed, PsycInfo, as well as CINAHL) were searched. Observational studies focusing on the determinants of dental service use drawing on the Andersen model were included; Results: In sum, 41 studies have been included (ten studies investigating children/adolescents and 31 studies investigating adults). Among children, particularly higher age (predisposing characteristic), higher income (enabling resource) and more oral health problems (need factor) were associated with increased dental service use. Among adults, findings are, in general, less consistent. However, it should be noted that one half of the studies found an association between increased education (predisposing characteristic) and increased dental service. In general, study quality was rather high. However, it should be noted that most studies did not report how they dealt with missing data; Conclusions: Our systematic review revealed that all components (i.e., predisposing characteristics, enabling resources and need factors) of the Andersen model tend to be associated with dental service use among children, whereas the findings are more mixed among adults. In conclusion, beyond need factors, dental service use also tend to be driven by other factors. This may indicate over—or, more likely—underuse of dental services and could enrich the inequality discussion in dental services research.

Determinants of Dental Service Use Based on the Andersen Model: A Study Protocol for a Systematic Review

Introduction: Drawing on the Andersen model, there is a large body of evidence examining the determinants of health care use, such as doctor visits or hospitalization. However, far less is known about the determinants of dental service use, explicitly using the Andersen model. Consequently, the aim of this systematic review is to summarize and critically analyze evidence from observational studies that examine the determinants of dental service use based on the Andersen model. Methods and analysis: The following electronic databases will be searched: PubMed, PsycInfo, and CINAHL. Our main inclusion criterion is: observational studies (cross-sectional and longitudinal) investigating the determinants of dental service use based on the Andersen model. Disease-specific samples will be excluded. Data extraction will concentrate on methods (such as measurement of dental service use), sample characteristics (such as age and gender) and key results. The study quality will be assessed using an appropriate tool. Three steps (selecting the studies, extracting the data and assessment of study conducted) will be performed by two reviewers. The findings will be displayed using figures, summary tables, narrative summaries and meta-analysis (if studies are deemed similar enough and of appropriate quality).

The Impact of Expanded National Health Insurance Coverage of Dentures and Dental Implants on Dental Care Utilization among Older Adults in South Korea: A Study Based on the Korean Health Panel Survey

In South Korea, the National Health Insurance Service (NHIS) began its coverage of dentures and dental implants for older people in 2012 and 2014, respectively. This study aimed to investigate the impact of these policies on dental care utilization among people aged 65 years or older according to their sociodemographic characteristics. Data were collected from the Korea Health Panel Survey (KHP; years 2012 and 2015). The statistical significance of the relationships between sociodemographic characteristics and the use of outpatient dental care, denture, and dental implant were analyzed. Results showed an increase of 5.7%, 1.4%, and 2.8% in the use of outpatient dental care, denture, and dental implant, respectively, over the course of three years. Including dentures increased its use by 2.5–3.7 times among people aged 70 years or older. Including dental implants alleviated the disparities among older adults based on age groups and duration of education, except those among uneducated people; however, it caused inequity according to household income. Some Korean older adults remain neglected from the benefits of the expanded NHIS. Therefore, older adults’ access to dental care should be enhanced by the implementation of policies to promote oral health care utilization, dental prosthetic services, and older adults’ insurance coverage.

Self-Reported Oral Health, Oral Hygiene and Associated Factors in Lithuanian Adult Population, 1994-2014

This study aimed to examine 20-year trends (1994-2014) in self-reported oral health and oral hygiene and to assess the associated factors in a Lithuanian population aged 20-64 years. Nationally representative cross-sectional data on 8612 men and 11,719 women were obtained from 11 biennial postal surveys of Lithuanian health behavior monitoring. Dentate status was assessed by asking about the number of missing teeth. Over the study period, the proportion of men with all teeth increased from 17.5% to 23.0% and the same proportion increased in women-from 12.5% to 19.6%. The prevalence of edentulousness was 2.8% in 2014. The proportion of individuals brushing teeth at least twice a day increased from 14.6% to 31.9% in men and from 33.0% to 58.8% in women. Multivariate logistic regression analysis revealed that older age, lower education, living in rural areas, daily smoking, confectionary consumption (only in women), obesity, no visits to a dentist during the past year, toothache and brushing teeth less than twice a day increased the odds of missing six or more teeth. Efforts should be made to promote good oral hygiene habits, prevent and control behavioral risk factors and increase access to dental care among risk groups.

Association between Subjective Well-Being and Frequent Dental Visits in the German Ageing Survey

The relationship between subjective well-being (SWB) and frequent attendance is understudied. This study used data from a large German sample of non-institutionalized individuals aged 40+ in 2014 (n = 7264). SWB was measured using the Satisfaction with Life Scale (SWLS) and the Positive and Negative Affect Schedule (PANAS). Number of self-reported dental visits in the past twelve months was used to measure the utilization frequency of dental services. Individuals with at least four dental visits in the preceding year (highest decile) were defined as frequent dental visits. Robustness checks were performed using alternative cut-offs to define frequent dental visits. Multiple logistic regressions showed that frequent dental visits (highest decile) were associated with less satisfaction with life [OR: 0.89, 95%-CI: 0.80–0.99] and higher negative affect [OR: 1.41, 95%-CI: 1.22–1.64], whereas it was not significantly associated with positive affect. Both associations depended on the cut-off chosen to define frequent dental visits. The present study highlights the association between SWB (particularly negative affect and low life satisfaction) and frequent dental visits. Further studies evaluating patients’ motivation for high dental service use are necessary to check the robustness of our findings.

Measuring Oral Health Literacy of Refugees: Associations with Dental Care Utilization and Oral Health Self-Efficacy

Purpose: The purpose of this study was to analyze associations between the oral health literacy of refugees and two oral health outcomes: dental care utilization and oral health self-efficacy.Methods: A convenience sample of refugees in the greater Los Angeles area attending English as a second language (ESL) classes sponsored by two refugee assistance organizations was used for this cross-sectional, correlational study. Participants responded to a questionnaire using items from the Health Literacy in Dentistry (HeLD) scale, in addition to items concerning dental care utilization and oral health self-efficacy. Descriptive statistics, chi-square and Fisher's Exact tests were used to analyze results.Results: Sixty-two refugees volunteered to participate (n=62). A majority of the respondents were female from Iraq or Syria, and selected the item "with little difficulty" for all oral health literacy tasks. In regards to dental care utilization, more than half of the respondents were considered high utilizers (63%, n=34) meaning they had visited a dental office within the last year; while a little more than one-third (37%, n=20), were low utilizers, indicating they had either never been to a dental office or it had been more than one year since they had dental treatment. Statistical analysis showed associations between oral health literacy and dental care utilization. However, few associations between oral health literacy and oral health self-efficacy were identified (p=0.0045).Conclusions: Results support the provision of easily obtainable and understandable oral health information to increase oral health literacy and dental care utilization among refugee populations. Future research is needed to examine the oral health literacy among refugees resettling in the United States.

[Dental care utilization of immigrants in Chengdu, China]

OBJECTIVE

This study considered Chengdu, Sichuan, China as an example to investigate the dental service utilization by foreigners and its influencing factors. Results of the study can be referred by dental practitioners to explore international development of dental services and can be provided for health policy makers to formulate oral health policies for immigrants.

METHODS

A simple random sampling method with a questionnaire was designed based on Anderson's health utilization model and "Oral Health Questionnaire for Adults" by the World Health Organization. Oral health condition, consciousness, and demographic data were collected. Binary Logistic regression and stratified analysis with SPSS 20.0 were performed.

RESULTS

A total of 654 immigrants repre-senting 75 countries participated in the study. Among all participants, 102 (15.6%) experienced dental problems while in residence in China but paid no visit to dentists. Female immigrants, who spent considerable time living in Chengdu, experienced oral problems in a year, used dental floss, and reported family members in Chengdu, were more likely to visit Chinese dentists. Participants who lived in Chengdu for at least 10.5 months were the threshold distinguishing differences in dental visits in the country.

CONCLUSIONS

The policymakers in Chengdu should consider creating a convenient and conducive dental care environment for immigrants. Additional information related to urgent oral and routine care should be provided to short- and long-term living immigrants in China. Dental practitioners in China should also contemplate on collaborating with foreign dental insurance companies to ensure better dental care access for immigrant patients.

Disparities in dental healthcare utilization in China

OBJECTIVES

The goal of this study was to investigate inequality in dental service utilization in Chinese middle-aged and senior adults and changes in inequality over time and to determine the sources of inequality.

METHODS

The data included 17 648 individuals aged 45 years and older in 2013 and 15 450 individuals in 2015 who participated in the China Health and Retirement Longitudinal Study (CHARLS). The concentration index was used to quantify the degree of inequality. A decomposition method was employed to determine the sources of inequality, including need variables (demographic characteristics, self-reported health status, and presence of chronic diseases), living standard (measured by household consumption expenditure per capita), other non-need variables (education level, marital status, region of residence, urban-rural difference and type of health insurance plans).

RESULTS

The better-off not only had a higher likelihood of using dental care services than did the worse-off but also used them more often than the worse-off. The concentration index for probability of dental care utilization increased from 0.074 to 0.112 between 2013 and 2015, and the concentration index for total number of dental visits increased from 0.085 to 0.127. Living standard, education, health insurance plans and urban-rural disparities showed a pro-rich contribution to the inequality. The living standard contributed about 70% to the pro-rich inequality.

CONCLUSIONS

Dental care utilization in the Chinese middle-aged and older adults was concentrated in the better-off. Inequality in dental care utilization widened from 2013 to 2015. Achieving equity in dental care utilization remains a challenge for the healthcare system in China.

Exploring the association of dental care utilization with oral impacts on daily performances (OIDP) - a prospective study of ageing people in Norway and Sweden

OBJECTIVES

To explore the association of dental health care utilization with oral impacts on daily performances (OIDP) across time focusing ageing Norwegian and Swedish adults adjusting for predisposing, enabling, and need related-factors as defined by Andersen's model.

METHODS

Data were based on Norwegian and Swedish 1942 birth-cohorts conducted in 2007 (age 65) and 2012 (age 70). In Norway, the response rates ranged from 54% to 58%. Corresponding figures in Sweden were from 72% to 73%. Self-administered questionnaires assessed OIDP, dental care utilization and predisposing, enabling and need related factors. Logistic regression with robust variance estimation was used to adjust for clustering in repeated data.

RESULTS

Significant covariates of OIDP were satisfaction with dental services, dental care avoidance due to financial constraints, frightening experience with dental care during childhood and patient initiated dental visiting. Frequency and regularity of dental attendance were associated with OIDP in the Swedish cohort, only.

CONCLUSIONS

In spite of country differences in the public co-financing of dental care, dental care utilization indicators were associated with OIDP across time in both cohorts. Encouraging regular and dentist initiated visiting patterns and strengthening beliefs in keeping own teeth could be useful in attempts to reduce poor oral health related quality of life in ageing people.

Projecting the Demand for Dental Care in 2040

The purpose of this study was to provide a forward-thinking assessment of the underlying factors likely to impact trends in dental care demand and the need for dental providers in 2020, 2025, and beyond. Dental workforce trends and their likely impact on the need for dentists are a function of predicted dental care demand, which will in turn be determined by the size and characteristics of our population size, economic outlook, the state of public and private dental care insurance, trends in dental care delivery, professionally determined dental care need, and population health beliefs. Projecting rates of dental care utilization far into the future is difficult because projections must be made using historical data, and established trends may not persist if there is structural change in the future. Nonetheless, when structural change occurs, it does not typically affect all aspects of the economy, so there is value in describing the likely future impact of current trends. This article was written as part of the project "Advancing Dental Education in the 21^st Century."

The Impact of the Affordable Care Act's Dependent Coverage Mandate on Use of Dental Treatments and Preventive Services

BACKGROUND

Oral health problems are the leading chronic conditions among children and younger adults. Lack of dental coverage is thought to be an important barrier to care but little empirical evidence exists on the causal effect of private dental coverage on use of dental services. We explore the relationship between dental coverage and dental services utilization with an analysis of a natural experiment of increasing private dental coverage stemming from the Affordable Care Act's (ACA)-dependent coverage mandate.

OBJECTIVES

To evaluate whether increased private dental insurance due to the spillover effect of the ACA-dependent coverage health insurance mandate affected utilization of dental services among a group of affected young adults.

DATA

2006-2013 Medical Expenditure Panel Surveys.

STUDY DESIGN

We used a difference-in-difference regression approach comparing changes in dental care utilization for 25-year olds affected by the policy to unaffected 27-year olds. We evaluate effects on dental treatments and preventive services RESULTS:: Compared to 27-year olds, 25-year olds were 8 percentage points more likely to have private dental coverage in the 3 years following the mandate. We do not find compelling evidence that young adults increased their use of preventive dental services in response to gaining insurance. We do find a nearly 5 percentage point increase in the likelihood of dental treatments among 25-year olds following the mandate, an effect that appears concentrated among women.

CONCLUSIONS

Increases in private dental coverage due to the ACA's-dependent coverage mandate do not appear to be driving significant changes in overall preventive dental services utilization but there is evidence of an increase in restorative care.

Social and health-related factors associated with refraining from seeking dental care: A cross-sectional population study

BACKGROUND

Social inequities are considered to affect healthcare utilization, whereas less is known about the factors associated with refraining from seeking dental care. This study aimed to investigate whether people with no social support, long-term illness, caregiver burden and low socioeconomic status (SES) refrained from seeking dental care in higher proportion than the general Swedish population.

METHODS

This study used cross-sectional questionnaire data from repeated nationwide health surveys during 2004-2013 of a total of 90 845 people. The questionnaire included questions on demographic characteristics, social support, long-term illness, caregiving burden, SES and dental care-seeking behaviour. Descriptive statistics, chi-square tests, correlation analyses and logistic regressions were used to investigate associations between independent variables and dental care-seeking behaviour.

RESULTS

In the total sample, 15.1% of respondents reported refraining from seeking dental care. Having no emotional social support or having no instrumental social support was separately associated with reporting refraining from seeking dental care in adjusted multivariate models (odds ratio [OR] 1.26, 95% confidence interval [CI] 1.18-1.34 and OR: 1.89, 95% CI: 1.67-2.13, respectively). Having a long-term illness was associated with refraining from seeking dental care in adjusted models (adjusted OR: 1.43, 95% CI: 1.35-1.51). Furthermore, being an informal caregiver was associated with refraining from seeking dental care (adjusted OR: 1.15, 95% CI: 1.07-1.23). Low SES was associated with higher refraining from seeking dental care; the strongest association was with having financial problems (adjusted OR: 3.57, 95% CI: 3.19-4.00). Interaction effects were found between education level and SES, and between social support and long-term illness, and the outcome.

CONCLUSIONS

The findings in this study imply that having no social support, having long-term illness, being informal caregiver or having financial problems are factors associated with reporting refraining from seeking dental care, on a population basis.

Tweeting about pain: comparing self-reported toothache experiences with those of backaches, earaches and headaches

BACKGROUND

The authors conducted a study of tweets posted on Twitter to compare self-reported toothache experiences with those of backache, earache and headache in regard to pain intensity, action taken, perceived cause and effect of pain.

METHODS

From a total of 508,591 relevant tweets collected on seven nonconsecutive days, the authors randomly selected 1,204 tweets (301 per pain type) and conducted content analyses of each tweet.

RESULTS

Toothaches were described as having higher pain intensity than were earaches or headaches but pain intensity comparable with that of backaches. Despite people who experience toothache being more likely to seek health care than those experiencing backaches (odds ratio [OR], 3.91; 95 percent confidence interval [CI], 1.57-9.71) or headaches (OR, 6.11; 95 percent CI, 2.16-17.25), only one in 10 people with toothaches mentioned seeking health care for their pain. People with toothaches were less likely to report an effect on daily functioning compared with those with backaches (OR, 0.13; 95 percent CI, 0.03-0.56) or earaches (OR, 0.19; 95 percent CI, 0.05-0.77).

CONCLUSIONS

Using unsolicited self-reported data from Twitter, the authors found similarities and differences in the experiences of people with toothaches compared with those of people with other common pains. These findings offer insights into understanding dental pain and dental care utilization.

PRACTICAL IMPLICATIONS

The use of social media, such as Twitter, to discuss health issues provides opportunities for dental professionals to better understand dental care experiences from the patients' perspective. Furthermore, social media such as Twitter offer providers the opportunity to share information with the public and to facilitate provider-patient communication.

Factors affecting children's adherence to regular dental attendance: a systematic review

BACKGROUND

Parents' adherence to regular dental attendance for their young children plays an important role in improving and maintaining children's oral health. The authors conducted a systematic review to determine the factors that influence parental adherence to regular dental attendance for their children.

TYPE OF STUDIES REVIEWED

The authors searched nine electronic databases to May 2013. They included quantitative and qualitative studies in which researchers examined factors influencing dental attendance in children 12 years or younger. The authors considered all emergency and nonemergency visits. They appraised methodological quality through the Health Evidence Bulletins Wales methodological quality assessment tool.

RESULTS

The authors selected 14 studies for the systematic review. Researchers in these studies reported a variety of factors at the patient, provider and system levels that influenced dental attendance. Factors identified at the patient level included parents' education, socioeconomic status, behavioral beliefs, perceived power and subjective norms. At the provider level, the authors identified communication and professional skills. At the system level, the authors identified collaborations between communities and health care professionals, as well as a formal policy of referring patients from family physicians and pediatricians to dentists.

PRACTICAL IMPLICATIONS

Barriers to and facilitators of parents' adherence to regular dental attendance for their children should be identified and considered when formulating health promotion policies. Further research is needed to investigate psychosocial determinants of children's adherence to regular dental visits.

Concordance between patient satisfaction and the dentist's view: findings from The National Dental Practice-Based Research Network

OBJECTIVES

In this study, the authors examined the dentist's view of the patient's experience and concordance with the patient's rating of satisfaction.

METHODS

Practitioners from 197 practices in The National Dental Practice-Based Research Network recruited consecutively seen patients who had defective restorations that were replaced or repaired. At the end of the dental visit, the treating dentist and 5,315 patients completed and returned a survey that asked about the patient's satisfaction.

RESULTS

Most dentists viewed their patients as having been satisfied with the treatment experience (n = 4,719 [89 percent]) and as having perceived them as friendly (n = 5,136 [97 percent]). Dentists had less strong feelings about whether patients had a preference for the restorative material (n = 2,271 [43 percent]) or an interest in obtaining information about the procedure (n = 1,757 [33 percent]). Overall, patients were satisfied, and most of the time dentists correctly predicted this outcome. Among patients who were less than satisfied, there was a substantial subset of cases in which dentists were not aware of this dissatisfaction.

CONCLUSION

For improved patient-centered care, dentists should assess patients' desires, expectations and perceptions of the dental care experience and then manage or correct the expectations and perceptions as needed.

PRACTICAL IMPLICATIONS

By taking a patient-centered approach, dentists should seek to understand how patients evaluate and rate the services provided, thereby enabling them to focus on what each patient values most.

The impact of the Great Recession on untreated dental caries among kindergarten students in North Carolina

BACKGROUND

The authors conducted a study to determine the impact of the Great Recession on untreated dental caries in kindergarten-aged children in North Carolina (NC).

METHODS

During the seven school years from 2003-2004 through 2009-2010, the state dental public health program assessed 608,339 kindergarten students for untreated decayed primary teeth (dt) as part of the statewide public health surveillance system. The authors aggregated observations to the school level and matched 7,660 school-year observations for 1,215 schools to National School Lunch Program (NSLP) participation rates, their primary economic indicator of the Great Recession. The authors included additional county-level economic indicators and measures of dentist supply and Medicaid enrollment. They used ordinary least squares regression with school-and year-fixed effects to examine the association of variables with the proportion of children with more than one dt for all schools and for schools with a greater than 10 percent increase in NSLP participation after 2006.

RESULTS

The authors found a small but statistically significant association between the proportion of children in the schools participating in the NSLP and the proportion of kindergarten students who had more than one dt (β, 0.031; 95 percent confidence interval [CI], 0.001 to 0.0604). This association was greater in schools that had a greater than 10 percent increase in NSLP participation (β, 0.068; 95 percent CI, -0.007 to 0.143). Regression estimates indicate a 1.3- and 3.1-percentage point cumulative increase in the proportion of children with more than one dt during the period from 2008 through 2009 for all schools and high-risk schools, respectively.

CONCLUSION

Increased NSLP enrollment was associated with less treatment for dental caries in 5-year-old children.

PRACTICAL IMPLICATIONS

Fewer children are receiving needed dental treatment because of the Great Recession. Recent gains made in the treatment of dental caries in children in NC have slowed as a result.

A register-based study of variations in services received among dental care attenders

OBJECTIVES

To investigate whether receipt of dental services, among attenders, reflects variations in dental health or whether and to what degree it is associated with socioeconomic status, with irregular or regular dental attendance and with the availability of dentists in residential areas.

MATERIALS AND METHODS

This retrospective register-based study followed two Danish cohorts, aged 25 and 40, with a dental examination in 2009 (n = 32,351). The dental service data were registered during 2005-2009. The number of dental examinations, individual preventive services (IPS), tooth extractions, root fillings and composite fillings were analyzed in relation to socioeconomic status, irregular/regular dental attendance, inhabitant/dentist ratio and to DMFT at age 15 (DMFT15) and change in DMFT (ΔDMFT) from age 15 to age 25 and age 40, respectively. Poisson regression and negative binomial regression analyses were used.

RESULTS

The variations in number of services received in the study population were small (SD = 0.2-2.7). However, with a few exceptions, high levels of DMFT15 and ΔDMFT were associated with receipt of more dental services. Socioeconomically-privileged individuals received more dental examinations but fewer tooth extractions, root fillings and composite fillings compared to disadvantaged persons, when controlled for dental health levels. Irregular attenders received fewer IPS and composite fillings but had more extractions compared to regular attenders.

CONCLUSIONS

Variations in dental care services were found to reflect variations in dental health, but the variations were also related to individual socioeconomic status, residential area and dental attendance patterns.

Dental care utilization among older adults with cognitive impairment in the USA

AIM

We examined the relationship between cognitive impairment and dental care utilization among older adults in the USA.

METHODS

A total of 329 older adults aged 70 years and older in West Virginia, USA, were included in the present analyses. We carried out multivariate ordinal regression analyses.

RESULTS

Individuals with dementia were less likely to visit a dentist regularly, and more time had passed since their last dental visit compared with individuals with normal cognitive function. However, the pattern of dental care utilization for those with cognitive impairment, not dementia did not differ from individuals with normal cognition. A perceived greater social network and having dental insurance were associated with increased dental care utilization.

CONCLUSIONS

Less dental care utilization might contribute to the oral health problems often observed among individuals with dementia. Efforts to increase the use of dental care should include cost-effective options for dental insurance. In addition, educating formal and informal caregivers on the importance of dental care might be beneficial, as these individuals are in the best position to facilitate dental care for individuals with dementia.

Dental care utilization among caregivers who care for older adults

The goal of this study was to investigate individual and contextual factors associated with dental care utilization by U.S. informal caregivers. The sample included all 2010 Behavioral Risk Factor Surveillance System respondents who completed the caregiver module and reported providing care for 1 year or more to an individual aged ≥ 50 years or older (n = 1,196). Multiple logistic regressions were used to examine associations of caregiver and care characteristics and county-level contextual characteristics (from Area Resource File data) with two outcomes: dental visits and dental cleaning during previous year. Caregivers with health insurance coverage and higher education were more likely to use dental care; those who had lost more teeth and who were spouse caregivers were less likely to do so. Community characteristics were not correlated with caregivers' use of dental care. Our findings suggest that better access to dental care could improve dental care utilization by caregivers.

Racial and Ethnic Variations in Preventive Dental Care Utilization among Middle-Aged and Older Americans, 1999-2008

Objective: This study examined recent trends of preventive dental care utilization among Americans aged 50 and above, focusing on variations across racial and ethnic groups including Whites, Blacks, Hispanics, American Indians/Alaska Natives, and Asians.

Methods: Self-reported information on oral health behaviors was collected from 644,635 participants in the Behavioral Risk Factor Surveillance System between 1999 and 2008.

Results: Despite a significant upward trend of frequency of dental cleaning from 1999 to 2008 (OR = 1.02), in 2008 still only 56–77% of any ethnic or racial group reported having had a dental cleaning in the previous 12 months. Relative to Whites, Blacks (OR = 0.65) were less likely to have a dental cleaning in the previous 12 months. These variations persisted even when SES, health conditions, health behaviors, and number of permanent teeth were controlled. In contrast, Hispanics, Asians, and American Indians/Alaskan Natives did not differ from Whites in dental cleanings.

Discussion: This is the first study to provide national estimates of the frequency of dental cleaning and associated trends over time for five major ethnic groups aged 50 and above in the U.S. simultaneously. Our findings suggest that public health programs with an emphasis on educating middle-aged and older minority populations on the benefits of oral health could have a large impact, as there is much room for improvement. Given the importance of oral health and a population that is rapidly becoming older and more diverse, the need for improved dental care utilization is significant.

Racial/ethnic disparities in provision of dental procedures to children enrolled in Delta Dental insurance in Milwaukee, Wisconsin

OBJECTIVES

Most studies on the provision of dental procedures have focused on Medicaid enrollees known to have inadequate access to dental care. Little information on private insurance enrollees exists. This study documents the rates of preventive, restorative, endodontic, and surgical dental procedures provided to children enrolled in Delta Dental of Wisconsin (DDWI) in Milwaukee.

METHODS

We analyzed DDWI claims data for Milwaukee children aged 0-18 years between 2002 and 2008. We linked the ZIP codes of enrollees to the 2000 U.S. Census information to derive racial/ethnic estimates in the different ZIP codes. We estimated the rates of preventive, restorative, endodontic, and surgical procedures provided to children in different racial/ethnic groups based on the population estimates derived from the U.S. Census data. Descriptive and multivariable analysis was done using Poisson regression modeling on dental procedures per year.

RESULTS

In 7 years, a total of 266,380 enrollees were covered in 46 ZIP codes in the database. Approximately, 64 percent, 44 percent, and 49 percent of White, African American, and Hispanic children had at least one dental visit during the study period, respectively. The rates of preventive procedures increased up to the age of 9 years and decreased thereafter among children in all three racial groups included in the analysis. African American and Hispanic children received half as many preventive procedures as White children.

CONCLUSION

Our study shows that substantial racial disparities may exist in the types of dental procedures that were received by children.