Evaluating the role of dental behaviour in oral health inequalities

The role of psychological distress in the relationship of financial strain with oral health and dental attendance in Dutch adults: A mediation analysis based on cross-sectional data

OBJECTIVES

The study aimed to assess whether psychological distress mediates the association between financial strain and oral health and dental attendance in the Dutch adult population.

METHODS

The study followed a cross-sectional design based on 2812 participants from the 2014 wave of the Dutch population-based GLOBE study. Financial strain was considered the exposure, while psychological distress measured with the Mental Health Inventory-5 (MHI-5) was the mediator. The outcomes included self-reported number of teeth, self-rated oral health, and self-reported dental attendance. Generalized regression analyses were used for the mediation analysis adjusted for several covariables.

RESULTS

Greater financial strain was significantly associated with poorer self-rated oral health (total effect: 0.09, 95%CI: 0.05; 0.14) and restorative or no dental attendance (i.e. participants never visiting a dentist or only visiting a dentist for regular treatments or when they have complaints with their mouth, teeth, or prosthesis) (total effect: 0.05, 95%CI: 0.02; 0.09). Greater financial strain was not significantly associated with self-reported number of teeth (total effect: -0.14, 95%CI: -0.91; 0.64). Psychological distress significantly mediated the association of financial strain with self-rated oral health (average causal mediation effect [ACME]: 0.02, 95%CI: 0.01; 0.03) and self-reported dental attendance (ACME: 0.01, 95%CI: 0.00; 0.02), respectively. However, it did not significantly mediate the association of financial strain with self-reported number of teeth (ACME: -0.11, 95%CI: -0.25; 0.02). The estimated proportion of the total effect of financial strain on self-rated oral health and self-reported dental attendance that could be explained by psychological distress was respectively 24% (95%CI: 14%; 48%) and 19% (95%CI: 6%; 62%).

CONCLUSIONS

Psychological distress partly explains the association of financial strain with self-rated oral health and dental attendance, but not with self-reported number of teeth. Future studies using longitudinal data are necessary to confirm the results.

Evaluating the harmonization potential of oral health-related questionnaires in national longitudinal birth and child cohort surveys

BACKGROUND/OBJECTIVES

Effective use of longitudinal study data is challenging because of divergences in the construct definitions and measurement approaches over time, between studies and across disciplines. One approach to overcome these challenges is data harmonization. Data harmonization is a practice used to improve variable comparability and reduce heterogeneity across studies. This study describes the process used to evaluate the harmonization potential of oral health-related variables across each survey wave.

METHODS

National child cohort surveys with similar themes/objectives conducted in the last two decades were selected. The Maelstrom Research Guidelines were followed for harmonization potential evaluation.

RESULTS

Seven nationally representative child cohort surveys were included and questionnaires examined from 50 survey waves. Questionnaires were classified into three domains and fifteen constructs and summarized by age groups. A DataSchema (a list of core variables representing the suitable version of the oral health outcomes and risk factors) was compiled comprising 42 variables. For each study wave, the potential (or not) to generate each DataSchema variable was evaluated. Of the 2100 harmonization status assessments, 543 (26%) were complete. Approximately 50% of the DataSchema variables can be generated across at least four cohort surveys while only 10% (n = 4) variables can be generated across all surveys. For each survey, the DataSchema variables that can be generated ranged between 26% and 76%.

CONCLUSION

Data harmonization can improve the comparability of variables both within and across surveys. For future cohort surveys, the authors advocate more consistency and standardization in survey questionnaires within and between surveys.

Toothbrushing and Access to Dental Services in Peruvian Children

Objective. The aim was to determine the association between access to dental services and toothbrushing in Peruvian children under 12 years old. Methods. This was a cross-sectional study with a population of 2021 database of the Demographic and Family Health Survey. Records of children under 12 years old who provided answers about their toothbrushing were included. Variables were evaluated descriptively and followed by a bivariate analysis; multivariate tests were performed using Poisson regression with a multilevel regression analysis. Results. General toothbrushing was 96.32% (n = 34 198), and daily toothbrushing was 88.05% (n = 28 444). Access to dental services was associated with general toothbrushing (aPR: 1.18; 95% CI: 1.14-1.22; P < .001), daily toothbrushing (aPR: 1.08; 95% CI: 1.04-1.12; P < .001) and minimum toothbrushing 2 times a day (aPR: 1.12; 95% CI: 1.07-1.17; P < .001). Conclusion. Access to dental services was associated with general toothbrushing, daily toothbrushing and toothbrushing at least twice a day.

The educational gradient in dental caries experience in Northern- Norway: a cross-sectional study from the seventh survey of the Tromsø study

BACKGROUND

Although, studies from Norway indicate a reduction in dental caries experience, in Northern-Norway this non-communicable oral condition is still prevalent. There is conflicting evidence of presence of social inequalities in dental caries in an adult population. Therefore, the aim of this study was to assess an association between educational level and dental caries experience in adults in urban Tromsø municipality, Northern-Norway, using The World Health Organization (WHO) Commission on Social Determinants of Health (CSDH) framework of health determinants.

METHODS

Data from 3752 participants having recorded dental caries status and educational level in the seventh survey of the Tromsø Study: Tromsø7 were included. Dental status was examined clinically as decayed-, missing-, filled-teeth (DMFT score). For statistical analyses DMFT score was grouped into lower (DMFT < 19) and higher (DMFT ≥ 20). Educational level was obtained from a questionnaire and categorized as primary/partly secondary education, upper secondary education, tertiary education, short and tertiary education, long. Data on social and intermediary determinants was also self-reported. Univariable and multivariable binary logistic regression analyses were applied.

RESULT

This study included 1939 (52%) women and the mean age of the participants was 57.11. The mean DMFT score was 18.03. The odds of having higher DMFT score followed a gradient based on educational level. Participants who reported lower than secondary education had 2.06 -fold increased odds of having higher DMFT score than those with tertiary education, long (OR: 2.06, 95% CI: 1.50-2.83). Those with upper secondary education had 60% higher odds of having higher DMFT score (OR: 1.60, 95% CI: 1.21-2.11), and those with tertiary education, short had 66% higher odds of having higher DMFT score (OR: 1.66, 95% CI: 1.24-2.22).

CONCLUSION

The current cross-sectional study suggested an educational gradient in dental caries experience in an adult population of Northern- Norway. Further studies validating our results and investigating mechanisms of educational inequalities in oral health are warranted.

Oral healthcare seeking behavior of Malaysian adults in urban and rural areas: findings from the National Health and Morbidity Survey 2019

BACKGROUND

The development and implementation of appropriate strategies to enhance oral health in the community can be aided by an understanding of oral healthcare seeking behavior among urban and rural populations. The purpose of this study was to identify the factors associated with oral healthcare seeking behavior of the Malaysians in urban and rural locations who self-reported dental problems.

METHODS

The National Health and Morbidity Survey 2019, a cross-sectional nationwide household survey that focused on non-institutionalised Malaysians, provided the data for this study on adults in Malaysia who were 18 years of age and older. A two-stage stratified random sampling technique was employed to ensure national representativeness. Data was collected using a multilingual (Malay and English), structured, and validated questionnaire via face-to-face interviews from July to October 2019. The dependent variable was oral healthcare seeking behavior (sought oral healthcare and self-medication). Independent variables were predisposing, enabling and health needs factor based on Andersen's Behavioral Model. Descriptive statistics were used to describe the characteristics and oral healthcare seeking behavior of the respondents. The relationship between the independent and dependent variables were investigated using multivariable logistic regression analysis.

RESULTS

The analysis comprised a total of 10,134 respondents, representing about 18.2 million Malaysian adults aged 18 and above. The overall prevalence of Malaysian adults who self-reported dental problems was low (5.5%) and was slightly higher in the rural than urban population. Almost half sought treatment from healthcare practitioners, and almost a quarter self-medicated. Ethnicity was associated with seeking healthcare and self-medication among urban dwellers. Among the rural population, income level was associated with seeking healthcare while education level was associated with self-medication.

CONCLUSION

Disparities in oral healthcare seeking behaviors exist between Malaysians living in urban and rural areas. Future policies should adopt focused strategies that concentrate on oral healthcare accessibility and health literacy of the vulnerable and rural populations to achieve the best oral healthcare for this population group.

Is Dichotomization into Regular versus Irregular Dental Attenders Valid? A Qualitative Analysis

AIMS

To discover whether dental visiting behavior can be understood as a dichotomy of planned versus problem based, or whether there were a range of different types of understanding and patient behavior, recognizable as patterns of dental visiting behavior.

METHODS

Secondary analysis drawing on 2 qualitative studies of patients' accounts of dental attendance and oral health, with 1) opportunistic interviews with people attending urgent dental care services (n = 43; including 19 with follow-up) and 2) home-based, in-depth interviews with people attending a dental practice with a mixture of improved or deteriorated/poor periodontal health (n = 25).

RESULTS

Four distinguishable patterns of dental visiting were identified in patients' accounts: Accepting and Active Monitoring, as well as Ambivalent and Active Problem-based dental visiting behavior. Individuals' patterns were relatively stable over time but could shift at turning points. Accepting Monitors were characterized as accepting dentists' recommendations and dental practice policies relating to oral health and visits, whereas Active Monitors were more independent in judging how often to attend for preventive appointments, while still valuing anticipatory care. Ambivalent Problem-based visitors placed a relatively low value on anticipatory care for oral health maintenance and drifted into lapsed attendance, in part because of service-related factors. This contrasted with Active Problem-based visitors, for whom using services only in an emergency was a conscious decision, with low value placed on anticipatory care.

CONCLUSION

This article demonstrates the dynamic nature of patterns of dental visiting where the dental system itself is partly instrumental in shaping patterns of utilization in an ecological way. Thus, service-related factors tend to combine with patients' behavior in expanding inequalities. This illuminates the reasons why risk-based recalls are challenging to implement as a dental policy.

KNOWLEDGE TRANSFER STATEMENT

The results of this analysis can be used by clinicians and policymakers to inform policy around supporting uptake of preventive health care visits, contributing in particular to understanding how risk-based preventive visiting policies may be better adapted to patients' understanding of the purpose of visits, taking into account that this is in part shaped by service-related factors in an ecological way, arising from patients' and dental teams' expectations.

A Systematic Review of Parents' Knowledge of Children's Oral Health

Young children's oral health is maintained mainly by adults' knowledge and attitude. This study evaluated parents' attitudes, actions, and knowledge regarding their children's dental health. We searched the electronic MEDLINE, Embase, Cochrane, and PubMed databases. Additionally, each relevant article's and book's bibliography was thoroughly searched. Included were the phrases "Knowledge" [MeSH] ", Attitude" [MeSH] ", Parents" [MeSH] ", Children" [MeSH] "And Oral Health" [MeSH]. This review emphasizes the growing global interest in parents' contributions to children's dental health. It is necessary to raise awareness about the knowledge and significance of deciduous teeth, frequent dental appointments throughout society, and implement parental oral health education programs because parents need more awareness.

Social Justice Education in Dentistry: A Qualitative Analysis and Conceptual Framework

BACKGROUND

Social justice, empathy, and social responsibility are emerging themes in dentistry. Many dental faculties have started incorporating these concepts into their curriculum, but our knowledge of the effectiveness of these initiatives remains limited.

PURPOSE

The objective of this study was to understand how students and educators perceive the role of social justice education, if any, in the undergraduate dentistry program.

METHODS

This qualitative study was performed by using semistructured interviews with students, professors, and clinical faculty at the Université de Montréal dental school from January to May 2020. Eighteen participants were recruited through purposeful sampling until saturation. The interviews were recorded and transcribed integrally. They were coded with QDA Miner 5.0 (Provalis). Thematic analysis was undertaken to elucidate emerging themes via qualitative methodology.

RESULTS

Five themes emerged from the results. Certain students were more inclined to be interested in social justice and participate in voluntary community-based activities. There were gaps in current teaching methods, including a lack of exposure to alternative treatment plans (e.g., extractions vs. endodontic treatments) better suited to patients' financial or social situations. Some barriers to teaching were identified, the most important being a lack of time. Desired teaching of social justice would include increased awareness and active student participation and taking responsibility to motivate action to produce social change. The application of social justice in dentistry involves care that is accessible and adapted to a patient's individual needs.

CONCLUSION

The results of this study provide valuable insight for the development of a social justice education curriculum in dentistry that can be evaluated and validated to train socially competent dentists who can provide patient-centered care to the community.

KNOWLEDGE TRANSFER STATEMENT

The results of this study can be used by dental educators and administrators who are looking to incorporate social justice education into their dental school undergraduate curriculum. The findings serve as a starting point to foster discussions and inspire change to reduce inequalities within the dental health care system.

Measuring oral health-How can the International Classification of Functioning help?

There is a need for a theoretically informed, contextualized approach to measuring oral health from a multidisciplinary perspective that goes beyond the commonly used clinical indices and sociodental measures. This commentary aims to discuss the potential for the WHO's International Classification of Functioning, Disability and Health (ICF) to provide a model for the development of indicators for oral health. It is suggested that the ICF might provide both a theoretical model and an operational classification for indicators of oral health. The ICF model states that human experience of physical, cognitive and social functioning is universal and, thus, can be described and qualified. Human function is given social and environmental context within the model at both an individual and population level. The ICF can not only capture data regarding oral health and function at the physiological level (e.g. chewing) but also at the social level (e.g. sharing meals). It is able not only to capture aspects of preventive behaviour (e.g. caring for teeth) but also aspects of social facilitation (e.g. economic self-sufficiency) or ability to fulfil a social role (e.g. remunerative employment). It also includes aspects of social environment, such as healthcare services or political, economic and legal systems. Case studies are given as examples of the potential use of the ICF in the oral health domain. Examples are also given of the first steps that have been made towards operationalization of the ICF in data collection and oral health research. The challenges of encompassing such a comprehensive model into a practical oral health measure are discussed.

Oral health research funding in relation to disease burden in Australia

BACKGROUND

This study aims to investigate and compare the major Australian government research funding schemes for oral health science with other disciplines from the burden of disease perspective.

METHODS

Major government research funding scheme outcomes were identified. An innovative index of Fair Research Funding (FRF) was developed to examine the extent to which National Health and Medical Research Council funding is aligned with the disease burden. In addition to comparing different diseases, overall governmental research funding for different areas of oral health sciences was explored.

RESULTS

Oral disorders with $15 million NHMRC grant funds (2017-2021) and FRF of 10.7 has the lowest and most inequitable amount of Australian government support in relation to disease burden. The share of oral health science in the Australian Research Council and Medical Research Future Fund was very minimal, with $3.43 and $1.88 million respectively.

CONCLUSION

Governmental research funding for oral health sciences is inequitable according to the disease burden. More dedicated oral health sciences research funding schemes are essential. Funding for prevention-focused public oral health programmes is a vital requirement towards reducing the inequalities in population oral health.

Validity and Reliability of the Dental Neglect Scale among Romanian Adults

The Dental Neglect Scale (DNS) is a well-known measure for assessing behaviours and attitudes related to oral health. However, the factor inconsistency revealed by the literature involves further investigations. The study focuses on the validation of the DNS in the case of a sample of the adult population from Romania. In this regard, data were collected online from 872 adults (616 females and 256 males). DNS reliability was examined from the perspective of internal consistency. Convergent validity was performed by associating DNS with different scales from the oral health field. In order to examine and confirm the factorial structure, the sample was broken down into two subsamples which made the subject of the exploratory factorial analysis (EFA) and confirmatory factorial analysis (CFA), respectively. DNS-RO is positively associated with the scale which measures the values related to oral health (OHVS) and negatively with those that assess the impact of the oral health on life quality (OHIP-14), the distrust of the benefits of oral health services (R-DBS), and reduced need for oral care (DIS). The Cronbach’s α = 0.70, McDonald’s ω = 0.70 and CR = 0.77 are acceptable. Both EFA and CFA (χ²/df = 1.13; CFI = 0.99; RMSEA = 0.017; SRMR = 0.059) support the unifactorial structure of the scale. The gender differences show that females evince greater care for oral health than male subjects. The study shows that the DNS-RO can be used to assess the behaviours and attitudes towards oral health in the case of the Romanian adult population in epidemiological studies and health promotion programs through health education.

Behavioural intervention to promote the uptake of planned care in urgent dental care attenders: study protocol for the RETURN randomised controlled trial

BACKGROUND

People with disadvantaged backgrounds are less likely to visit the dentist for planned care, even though they have disproportionately poorer oral health. They are correspondingly more likely to experience dental problems and use urgent dental care, general practices and Accident and Emergency departments, which not only makes meeting their needs expensive, but, since these services often rely on prescriptions rather than addressing the clinical cause, can contribute to antimicrobial resistance.

METHODS

The RETURN intervention has been developed with substantial community co-production, to be delivered opportunistically in urgent dental care settings. This brief intervention is delivered by dental nurses and involves material relevant to the 'in-group' targeted. The material includes booklets relating to barriers to planned dental visiting with corresponding short video clips featuring local people and including a modelling element. Dental nurses are trained to have supportive and non-judgemental conversations, assisting patients to set personal goals and action plans, which are reinforced in a follow-up text within a few weeks. A randomised controlled trial will be undertaken in 3 types of sites: dental practices delivering urgent care (a) within working hours, (b) out of hours, and (c) in a Dental Hospital. The trial will recruit 1180 adult urgent dental care users over 12 months, who have not visited a dentist for a planned care appointment for 2 years or more and do not have a dentist who they visit for routine care. It aims to investigate the effectiveness and cost-effectiveness of the intervention and to explore whether the intervention has different effects across the socio-economic gradient. Participants will be followed up at 6, 12 and 18 months after randomisation. Co-primary outcomes are attendance at a dental practice for planned care within 12 months and self-reported oral health-related quality of life at 12 months.

DISCUSSION

This is a pragmatic trial, evaluating the effectiveness of the intervention under the usual condition in which it might be applied. Since dental practices work as independent contractors to the NHS, this brings implementation and fidelity challenges which will be explored and described in embedded qualitative work.

TRIAL REGISTRATION

ISRCTN registry identifier ISRCTN84666712. Registered 12/04/2021.

The impact of the COVID-19 pandemic on oral health inequalities and access to oral healthcare in England

While the impact of the coronavirus disease (COVID-19) pandemic on health inequalities is documented, oral health has been absent from this discussion. This commentary highlights the potential impacts of the COVID-19 pandemic on oral health inequalities in England in February 2021. It includes a literature review, Public Health England and Kantar Worldpanel sales data on health behaviours and analysis of NHS dental services data. Purchasing data indicate, except for smoking, increases in health-compromising behaviours. Since the resumption of dental services, NHS general dental service use modestly recovered among adults but not children by October 2020. There are clear inequalities among children and older adults, with more deprived groups having lower uptake of dental service use than more affluent groups. Oral cancer referrals and hospital admissions for tooth extractions in children dramatically declined, with the latter primarily affecting children in more deprived areas. Many oral health programmes in schools and care homes were disrupted or suspended throughout this period. All these indicate that oral health inequalities have widened due to the COVID-19 pandemic. An oral health plan of action requires prioritising long-term investment in public health programmes and transforming commissioning pathways to support those with the greatest needs to access oral healthcare services.

People living in more deprived areas have fared worse than people living in less deprived areas, in terms of uptake of NHS primary dental care following the resumption of services in June 2020.

The cessation of oral health improvement programmes in the community and the dramatic decline of hospital dental services due to the COVID-19 pandemic have also primarily impacted the more socially disadvantaged groups, further widening inequalities.

Addressing the widened oral health inequalities requires long-term investment in oral health, prioritising public health programmes and supporting access to services.

Factors Associated With Self-Perception in Oral Health of Pregnant Women

Background

Health perception is a subjective predictor of long-term morbidity and mortality. Few studies address the perception that pregnant women have of their oral health.

Objective

The objective of this study was to explore the relationship between socioeconomic factors and self-assessment of oral health in pregnant women from Cali, Colombia.

Method

A cross-sectional study was carried out with a sample of 998 pregnant women, calculated using the formula to estimate a proportion in finite populations, with a confidence level of 95%. A questionnaire was applied for sociodemographic characterization, as well as to enquire about oral health perception, knowledge, and practices of oral health.

Results

The mean age of the surveyed mothers was 24.7, with a standard deviation of 6.1, of which 23.6% were adolescents. The perception they had about their oral health status was considered good by 60.8%. Of the 82.9% who reported having attended dentistry, more than half perceived good oral health. Pregnant women with no history of oral problems, with a perception of medium or high income, and with good oral hygiene practices tend to have a good perception of their oral health.

Conclusion

Pregnant women with no history of oral problems, with a perception of medium or high income, and with good oral hygiene practices tend to have a good perception of their oral health.

Neighbourhoods and oral health: Agent-based modelling of tooth decay

This research used proof of concept agent-based models to test various theoretical mechanisms by which neighbourhoods may influence tooth decay in adults. Theoretical pathways were constructed using existing literature and tested in two study areas in Sheffield, UK. The models found a pathway between shops and sugar consumption had the most influence on adult tooth decay scores, revealing that similar mechanisms influence this outcome in different populations. This highlighted the importance of the interactions between neighbourhood features and individual level variables in influencing outcomes in tooth decay. Further work is required to improve the accuracy and reliability of the models.

Association of Dental Neglect Scale and Severity of Dental Caries among Nursing Students: A Cross-Sectional Study

Aims:

The aim of this study is to assess the utilization of available dental services and home dental care practices in a sample of nursing students and to seek out the correlation if any, between the Dental Neglect Scale (DNS) scores and severity of dental caries.

Subjects and Methods:

The study was conducted among 630 nursing students aged 18–21 years from the area of South Bangalore. The study was cross-sectional in design and a convenience sampling method was adopted to get the desired sample size. A prestructured questionnaire was administered to the students in their classrooms. Following this, a brief oral examination was conducted using mouth mirror and light for the detection of any visible carious lesions.

Results:

The dental attendance variable was found to be significantly associated with the DNS scores (P < 0.001). The DNS scores were significantly higher (P < 0.001) among those who had visible caries than those who do not. A very good correlation was obtained between scores of DNS and the caries severity (P < 0.001, r = 0.773).

Conclusions:

The DNS can be a very good predictor of the dental attendance pattern as well as clinically assessed severity of carious lesions.

Influence of cognitive impairment and dementia on oral health and the utilization of dental services : Findings of the Oral Health, Bite force and Dementia Study (OrBiD)

BACKGROUND

The aim of this study was to show the influence of cognitive impairment and dementia on oral health and on the utilization of dental services.

METHODS

A cross-sectional analyzation of data of the OrBiD (Oral Health, Bite Force and Dementia) pilot study was conducted. 137 subjects were stratified into five dementia groups on the basis of the Mini Mental State Examination (MMSE) (1-no dementia (MMSE 28-30), 2-mild cognitive impairment (MMSE 25-27), 3-mild dementia (MMSE 18-24), 4-moderate dementia (MMSE 10-17), and 5-severe dementia (MMSE < 10)). Information on the utilization of dental services and oral health parameters (DMFT index, degree of restoration, Periodontal Screening Index, Bleeding on Probing, Oral Hygiene Index, Denture Hygiene Index) were collected.

RESULTS

An increase in dementia resulted in significant reduction in utilization. Moreover, with increasing cognitive impairment/dementia there was a significant difference in the number of teeth that were decayed, but not in the number of filled or missing teeth or the DMF/T index itself. With increasing dementia, the degree of restoration decreased and oral/denture hygiene deteriorated significantly. Nevertheless, periodontal therapy was required for all subjects independent of their degree of dementia while bleeding on probing was increasing with increasing dementia.

CONCLUSIONS

An influence of cognitive impairment and dementia on oral health and on the utilization of dental services was shown. However, no conclusions about the influence of the utilization behavior of people with dementia on oral health parameters can be drawn. Further longitudinal studies are needed. Trial registration ClinicalTrials.gov NCT03775772. Registered 14th December 2018, https://clinicaltrials.gov/ct2/show/NCT03775772 .

Inequalities in utilization and provision of dental services: a scoping review

BACKGROUND

There are many determinants that can affect inequality in oral and dental health. This study is aimed to explore the main determinants of inequality in both utilization and provision of dental services in Organization for Economic Co-operation and Development (OECD) countries.

METHODS

Four databases including PubMed, ISI WOS, Scopus, and ProQuest were searched up to 8 Aug 2020, applying the relevant keywords. Thematic analysis was used for synthesizing and extracting data. Trend analysis was applied to determine the trends of the inequality determinants.

RESULTS

Thematic analysis led to 6 main themes, 13 sub-themes, and 53 sub-sub-themes. The main themes represent the main inequality determinants for both utilization and provision of dental services. The streamgraph illustrated that fewer studies have been conducted on social and cultural determinants, and for almost all determinants the trend of published articles has been increasing since 2007, with the exception of health policies.

CONCLUSIONS

Inequality in the utilization and provision of dental services is addressed by various factors including individual, social, cultural and economic determinants, health policies, and availability of services. The first four determinants are related to utilization and the last two are related to the provision of services. All these aspects must be considered to reduce inequality in dental services.

Effects of Lingual and Palatal Site Toothbrushing on Periodontal Disease in the Elderly: A Cross-Sectional Study

(1) Background: To analyze the association between periodontal health status and daily oral health activities including lingual and palatal site toothbrushing. (2) Methods: One hundred and fifty Korean elderly people aged >65 years participated in the study. Clinical examination regarding oral health status, including periodontal health status, was evaluated, and data on the oral health activities, socio-demographic factors, and systemic health-related factors were obtained using a questionnaire. Statistical analyses assessed the differences of periodontal health status according to daily oral health activities, including lingual and palatal site toothbrushing. (3) Results: Oral health activities including lingual and palatal site toothbrushing, frequency of toothbrushing, use of an interdental toothbrush, dietary patterns, and activity dependence correlated with bleeding on probing (BOP) and periodontitis. After adjusting for covariates, the prevalence of periodontitis was lower in the group where the inner surfaces of the teeth were partially or wholly cleaned than in the group without such cleaning. High BOP was significantly associated with the brushing of the inner surfaces of teeth. (4) Conclusions: Lingual and palatal site toothbrushing was associated with good periodontal health status in the elderly; the importance of brushing the inner surfaces of teeth should be emphasized for them and their caregivers.

Dental attendance and behavioural pathways to adult oral health inequalities

BACKGROUND

While inequalities in oral health are documented, little is known about the extent to which they are attributable to potentially modifiable factors. We examined the role of behavioural and dental attendance pathways in explaining oral health inequalities among adults in England, Wales and Northern Ireland.

METHODS

Using nationally representative data, we analysed inequalities in self-rated oral health and number of natural teeth. Highest educational attainment, equivalised household income and occupational social class were used to derive a latent socioeconomic position (SEP) variable. Pathways were dental attendance and behaviours (smoking and oral hygiene). We used structural equation modelling to test the hypothesis that SEP influences oral health directly and also indirectly via dental attendance and behavioural pathways.

RESULTS

Lower SEP was directly associated with fewer natural teeth and worse self-rated oral health (standardised path coefficients, -0.21 (SE=0.01) and -0.10 (SE=0.01), respectively). We also found significant indirect effects via behavioural factors for both outcomes and via dental attendance primarily for self-rated oral health. While the standardised parameters of total effects were similar between the two outcomes, for number of teeth, the estimated effect of SEP was mostly direct while for self-rated oral health, it was almost equally split between direct and indirect effects.

CONCLUSION

Reducing inequalities in dental attendance and health behaviours is necessary but not sufficient to tackle socioeconomic inequalities in oral health.

Experiencing Financial Strain and Clinically Assessed Caries Experience in Dentate Adults Aged 25-44 Years: An Exploration of Potential Pathways

Large socioeconomic inequalities still exist in oral health. It is already known that oral health-related behaviour may contribute to these inequalities, but why people with a lower socioeconomic position behave less healthily is not easily understood. A possible explanation that integrates insights on health behaviour, stress, and financial resources is the pathway of behavioural responses to financial strain. The aim of this study was to assess to what extent financial strain is associated with clinically assessed caries experience in a population-based study of dentate adults, independently of other socioeconomic indicators. Furthermore, the potential mediating pathways of oral health-related behaviours (oral hygiene, dietary habits, preventive dental visits) were explored. Dentate participants, aged 25-44 years, taking part in a survey on oral health and preventive behaviour in the Netherlands in 2013 were clinically examined on - among others - caries experience (DMFS index) and level of oral hygiene (OHI-s index). Financial strain, frequency of tooth brushing, dietary habits, attendance of (preventive) dental visits in the past year, and demographic variables were assessed via questionnaires. Negative binomial hurdle models were used to study the association between financial strain and DMFS and between oral health behavioural indicators and DMFS. Although it was observed that experiencing financial strain did not seem to affect whether there is any caries experience or not, among those having any caries (DMFS >0) suffering from financial strain was associated with a higher caries prevalence, independent of educational level and income. None of the studied potential mediators could explain this association.

Does dental appearance impact on employability in adults? A scoping review of quantitative and qualitative evidence

Background The importance of physical appearance in social and professional situations has been well studied. It has been suggested that improving dental appearance may increase employment prospects. This scoping review aims to map the current literature regarding the impact of dental appearance on employability.Methods A scoping review was carried out in accordance with guidance from the Joanna Briggs Institute. Inclusion and exclusion criteria were developed iteratively, databases were searched and decisions on inclusion made in duplicate. Data were charted in Excel and synthesised using a visual map, study summary table and narrative description.Results We identified 16 relevant articles: ten experimental simulation studies, two qualitative studies, one cross-sectional survey, one pre-/post-dental treatment survey, one retrospective cohort study and one narrative systematic review. Experimental simulations support the notion that visible dental conditions can negatively impact appraisals of employment-related personal characteristics. Negative impacts on job-seeking self-efficacy and willingness to apply for jobs have also been documented.Conclusions The applicability of this evidence base to the UK health system context is uncertain and demonstration of real-life impact on employment is lacking. Further research is needed before programmes to improve dental appearance could be justified on the basis of improving employment outcomes.

Socioeconomic inequality in dental caries experience expressed by the significant caries index: cross-sectional results from the RaNCD Cohort Study

INTRODUCTION

Socioeconomic inequality in dental caries among Iranian middle-aged adults remains largely unstudied. This study aimed to measure socioeconomic inequality in dental caries experience and to identify determinants of this inequality.

MATERIALS AND METHODS

Data were obtained from the Ravansar Non-Communicable Diseases (RaNCD) Cohort Study. This cross-sectional analysis included 10,002 adults aged 35-65 years. Caries experience was dichotomised based on the decayed, missing and filled teeth (DMFT) of one-third of the population with the highest caries scores (i.e. significant caries index). Socioeconomic status (SES) was calculated using the principal component analysis. The concentration index (CI) was used to quantify the extent of socioeconomic inequality in dental caries experience. Decomposition analysis was conducted to quantify the contribution of each determinant to the observed inequality.

RESULTS

The mean DMFT for all individuals was 16.1(SD 9.1). The CI of having significant dental caries was -0.236 (95% CI: -0.0259, -0.213), indicating that having significant dental caries was more concentrated among low-SES individuals. SES (65.6%), age group (24.7%) and female gender (3.7%) were found to have the largest percentage of contributions to the observed inequality in dental caries.

CONCLUSION

This study indicates pro-rich inequalities in dental caries experience among middle-aged adults in Iran. The findings highlight the importance of early prevention of dental caries experience before it happens. To mitigate inequalities in dental caries experience, policy interventions should focus on females, older age groups, and low-SES individuals.

Narrative review of affinities and differences between the social determinants of oral and general health in Canada: establishing a common agenda

BACKGROUND

This article overviews Canadian work on the social determinants of oral and general health noting their affinities and differences.

METHODS

A literature search identified Canadian journal articles addressing the social determinants of oral health and/or oral health inequalities. Analysis identified affinities and differences with six themes in the general social determinants of health literature.

RESULTS

While most Canadian social determinants activity focuses on physical and mental health there is a growing literature on oral health-literature reviews, empirical studies and policy analyses-with many affinities to the broader literature. In addition, since Canada provides physical and mental health services on a universal basis, but does not do so for dental care, there is a special concern with the reasons behind, and the health effects-oral, physical and mental-of the absence of publicly financed dental care.

CONCLUSIONS

The affinities between the social determinants of oral health and the broader social determinants of health literature suggests the value of establishing a common research and action agenda. This would involve collaborative research into common social determinants of oral and general health and combined policy advocacy efforts to improve Canadians' living and working conditions as means of achieving health for all.

Oral hygiene behaviours among Australian adults in the National Study of Adult Oral Health (NSAOH) 2017-18

BACKGROUND

This paper examines oral hygiene behaviours (tooth brushing, mouthwash use and dental floss) by a range of explanatory variables.

METHODS

Explanatory variables included age, sex, region, income, area-based SES, dental insurance and visiting pattern. The data reported were collected in the interview survey in NSAOH 2017-18.

RESULTS

A higher percentage of females brushed with toothpaste at least daily (98.0%) and used floss in the last week (62.6%) than males (94.6% and 48.5% respectively). There was an income gradient in tooth brushing. Higher percentages brushed in the high income (96.8%) than middle (96.2%) and low-income tertiles (93.6%). A higher percentage of the high-income tertile (58.2%) flossed than the lower tertile (53.3%). Those with unfavourable visit patterns had lower percentages who brushed daily (92.7%) than the intermediate (96.7%) or favourable (98.2%) groups. There was a gradient in flossing by visiting, with a lower percentage flossing for the unfavourable visiting group (38.5%) than for the intermediate (52.8%) or favourable groups (67.6%).

CONCLUSIONS

Oral hygiene behaviours were associated with gender, socioeconomic status and dental visiting. A higher percentage of women brushed and flossed than men. Lower socioeconomic status and those with unfavourable visiting patterns had lower frequencies of brushing and flossing.

Periodontitis and Hypertension: Is the Association Causal?

High blood pressure (BP) and periodontitis are two highly prevalent conditions worldwide with a significant impact on cardiovascular disease (CVD) complications. Poor periodontal health is associated with increased prevalence of hypertension and may have an influence on BP control. Risk factors such as older age, male gender, non-Caucasian ethnicity, smoking, overweight/obesity, diabetes, low socioeconomic status, and poor education have been considered the common denominators underpinning this relationship. However, recent evidence indicates that the association between periodontitis and hypertension is independent of common risk factors and may in fact be causal in nature. Low-grade systemic inflammation and redox imbalance, in particular, represent the major underlying mechanisms in this relationship. Neutrophil dysfunction, imbalance in T cell subtypes, oral-gut dysbiosis, hyperexpression of proinflammatory genes, and increased sympathetic outflow are some of the pathogenetic events involved. In addition, novel findings indicate that common genetic bases might shape the immune profile towards this clinical phenotype, offering a rationale for potential therapeutic and prevention strategies of public health interest. This review summarizes recent advances, knowledge gaps and possible future directions in the field.

Socioeconomic-Related Inequalities in Dental Care Utilization in Northwestern Iran

INTRODUCTION

There have been multiple studies on socioeconomic-related inequalities in the use of dental services in Iran, but the evidence is still limited. This study measured inequality in dental care utilization by socioeconomic status and examined factors explaining this inequality among households in Ardabil, Iran in 2019.

METHODS

A total of 436 household heads participated in this cross-sectional study. Using a validated questionnaire, face-to-face interviews were conducted to collect data on dental care utilization, unmet needs, sociodemographic characteristics, economic status, health insurance, and oral health status of the participants. We used the concentration curve and relative concentration index (RCI) to visualize and quantify the level of inequality in dental care utilization by income. Regression-based decomposition was also applied to understand the causes of inequality.

RESULTS

About 59.2% (95% CI 54.4%-63.7%) and 14.7% (95% CI 11.6%-18.4%) of participants had visited a dentist for dental treatment in the previous 12 months and for 6-month dental checkups, respectively. The RCI for the probability of visiting a dentist in the last 12 months was 0.243 (95% CI 0.140-0.346). This suggests that dental care utilization was more concentrated among the rich. The RCI for unmet dental care needs was negative, which indicates more prevalence among the poor. Monthly household income (20.9%), self-rated oral health (6.9%), regular brushing (3.2%), and dental health insurance (2.5%) were the main factors in socioeconomic inequality in dental care utilization.

CONCLUSION

This study reveals that dental care-service utilization did not match the need for dental care, due to differences in socioeconomic status in Ardabil, Iran. Policies could be implemented to increase the coverage of dental care services among socioeconomically disadvantaged groups to tackle socioeconomic-related inequality in dental care utilization.

Use of medicines associated with dry mouth and dental visits in an Australian cohort

BACKGROUND

Poor recognition of medicine-induced dry mouth can have a number of adverse effects, including difficulties with speech, chewing and swallowing dry foods, gum disease, dental caries and oral candidosis. This study examined the prevalence of use of medicines that cause dry mouth and claims for dental services funded by the Department of Veterans' Affairs (DVA) in an Australian cohort.

METHODS

We used the DVA administrative health claims data to identify persons using medicines that can cause dry mouth at 1st of September 2016 and determine their DVA dental claims in the subsequent year. Results were stratified by gender, residence in community or residential aged cared facility and number of medicines.

RESULTS

We identified 50 679 persons using medicines known to cause dry mouth. Of these, 72.6% were taking only one medicine that may cause dry mouth, and 21.6% were taking two. Less than half (46.2%) of all people taking at least one of these medicines had a dental claim in the following year. A smaller proportion of women (35.9%) made claims than men (56.9%), χ²  = 2248.77, P < 0.0001.

CONCLUSIONS

Targeted interventions raising awareness of the relationship between some medicines and dry mouth, and the importance of dental visits are warranted.

Does the national dental scaling policy reduce inequalities in dental scaling usage? A population-based quasi-experimental study

BACKGROUND

In 2013, the national dental scaling insurance policy was introduced in South Korea. The purpose of this study is to determine the impact of the policy on inequalities in dental scaling usage.

METHODS

Data of a nationally representative sample of 1,517,097 people over the age of 20 were obtained from the 2010-2016 Community Health Survey. Respondents who reported that they had not received dental scaling in the past year were defined as dental scaling non-users. The excess prevalence and relative prevalence ratio of dental scaling non-users were calculated for the pre-policy (2010-2012) and post-policy periods (2014-2016) using monthly household income levels. Additionally, trends of dental scaling inequalities were shown as concentration indexes.

RESULTS

The prevalence of dental scaling non-users declined from 58.0 to 48.7% in the highest income group and from 86.3 to 78.8% in the lowest income group. However, the adjusted excess prevalence for the lowest income group compared with the highest had increased from 11.9 (95% CI: 11.9-11.9) to 15.5 (95% CI: 15.5-15.5)%, and the adjusted prevalence ratio increased from 1.19 (95% CI: 1.19-1.20) to 1.29 (95% CI: 1.29-1.30). Absolute and relative concentration indexes of dental scaling non-users increased after policy implementation.

CONCLUSIONS

The national dental scaling insurance policy has increased socioeconomic inequalities in dental scaling usage. Because dental care access generally requires high individual agency, expanded dental coverage may have had limited effects in attenuating inequalities and inadvertently widened the gap. To reduce dental care inequalities, universal access with universal dental coverage should be considered.

Is there socioeconomic inequality in periodontal disease among adults with optimal behaviours

OBJECTIVE

To examine if socioeconomic inequalities exist in periodontal disease among adult with optimal oral health behaviours.

MATERIALS AND METHODS

Data were from the Adult Dental Health Survey 2009, a national survey of England, Wales and Northern Ireland. Overall, 4738 participants aged 35 years and older were included in the analysis. Periodontal disease indicated by pocket depth or loss of attachment ≥4 mm, and gingival bleeding were used as periodontal outcomes. Education and deprivation indicated socioeconomic position. Behavioural factors were dental visits, toothbrushing and smoking. The subset of adults with and without optimal health related behaviours included 2916 and 1822 participants, respectively. The associations between periodontal disease and socioeconomic position were tested adjusting for demographic and behavioural factors. Additional models stratifying the sample to those with and without optimal behaviour subgroup were constructed.

RESULTS

Education and deprivation were significantly associated with periodontal disease in the partially adjusted models. In the analysis of those with optimal behaviours, only deprivation and highest level of education showed significant association with periodontitis (PD), but not with gingival bleeding. Among those without optimal behaviours, all socioeconomic factors were associated with all outcomes except deprivation and PD.

CONCLUSIONS

Oral health behaviours marginally contributed to inequalities in gingival bleeding and periodontal disease. Socioeconomic inequalities were attenuated among those with optimal behaviours and persisted among those without optimal behaviours. Behaviours appeared to be an effect modifier for the relationship between periodontal outcomes and socioeconomic factors.

Material, behavioural, cultural and psychosocial factors in the explanation of socioeconomic inequalities in oral health

Background

This study aimed to assess the contribution of material, behavioural, cultural and psychosocial factors in the explanation of socioeconomic inequalities (education and income) in oral health of Dutch adults.

Methods

Cross-sectional data from participants (25-75 years of age) of the fifth wave of the GLOBE cohort were used (n = 2812). Questionnaires were used to obtain data on material factors (e.g. financial difficulties), behavioural factors (e.g. smoking), cultural factors (e.g. cultural activities) and psychosocial factors (e.g. psychological distress). Oral health outcomes were self-reported number of teeth and self-rated oral health (SROH). Mediation analysis, using multivariable negative binomial regression and logistic regression, was performed.

Results

Education level and income showed a graded positive relationship with both oral health outcomes. Adding material, behavioural, cultural and psychosocial factors substantially reduced the rate ratio for the number of teeth of the lowest education group from 0.79 (95% confidence interval (CI): 0.75-0.83) to 0.92 (95% CI: 0.87-0.97) and of the lowest income group from 0.80 (95% CI: 0.73-0.88) to 1.04 (95% CI: 0.96-1.14). Inclusion of all factors also substantially reduced the odds ratio for poor SROH of the lowest education group from 1.61 (95% CI: 1.28-2.03) to 1.12 (95% CI: 0.85-1.48) and of the lowest income groups from 3.18 (95% CI: 2.13-4.74) to 1.48 (95% CI: 0.90-2.45).

Conclusion

In general, behavioural factors contributed most to the explanation of socioeconomic inequalities in adult oral health, followed by material factors. The contribution of cultural and psychosocial factors was relatively moderate.

A public health perspective on personalized periodontics

In this paper, we consider personalized periodontics from a public health perspective. Periodontitis is an under-acknowledged and important public health problem, and there has long been interest in identifying and treating those who are at high risk of developing this disease. Although susceptibility/risk-assessment tools in periodontology are currently in their early stages of development, personalized periodontics is increasingly becoming a realistic approach. At the population level, however, personalized periodontics is not an effective way of improving periodontal health because it would target only those who seek help or are able to access care. The occurrence of periodontitis in populations is socially patterned, with those of lower socio-economic position having poorer periodontal health and being far less likely to seek care. There is the potential for social inequalities actually to worsen as a result of personalized periodontics. In most health systems, personalized periodontics is likely to be accessible only to the social strata for whom it is affordable, and those with the greatest need for such an intervention will remain the least likely to be able to get it. Thus, personalized periodontics is likely to be a niche service for a small proportion of the adult population. This is at odds with the public health approach.

A scoping review of caries risk management protocols in Australia and New Zealand

To identify and map the caries risk management protocols with multiple strategies, which were used in Australia and New Zealand and reported in the existing literature, a scoping review was carried out by electronically searching PubMed, Web of Science, Scopus, Embase and Dentistry and Oral Science. Studies on caries risk management protocols, written in English, limited to Australia and New Zealand and published up to March 2018 were included in the review. There was no restriction on participants' age. Of 257 studies identified, seven were included in the review. These seven studies were reported in Australia and all but six were based on the caries management system (CMS). There were two descriptive studies, one 3-year multicentre cluster randomized controlled trial (RCT), one 2 to 4-year post-RCT follow-up and two cost-effective evaluations based on Markov decision analytic models. While concentrating on assessing individual behavioural risk factors for dental caries, studies indicated that the CMS would be more cost-effective if its protocol was properly adhered to. Future studies on caries risk management protocols are suggested to consider both the individual characteristics and the social context of different population groups in view of enhancing the effectiveness of oral care.

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.

Investigating societal determinants of oral health-Opportunities and challenges in multilevel studies

The high prevalence of oral diseases and the persistent nature of socioeconomic inequalities in oral health outcomes across societies presents a significant challenge for public health globally. A debate exists in epidemiology on the merits of investigating population variations in health and its determinants over studying individual health and its individual risk factors. The choice of analytical unit for health outcomes at the population level has policy implications and consequences for the causal understanding of population-level variations in health/disease. There is a lack of discussion in oral epidemiology on the relevance of studying population variations in oral health. Evidence on the role of societal factors in shaping variations in oral health at both the individual level and the population level is also mounting. Multilevel studies are increasingly applied in social epidemiology to address hypotheses generated at different levels of social organization, but the opportunities offered by multilevel approaches are less applied for studying determinants of oral health at the societal level. Multilevel studies are complex as they aim to examine hypotheses generated at multiple levels of social organization and require attention to a range of theoretical and methodological aspects from the stage of design to analysis and interpretation. This discussion study aimed to highlight the value in studying population variations in oral health. It discusses the opportunities provided by multilevel approaches to study societal determinants of oral health. Finally, it reviews the key methodological aspects related to operationalizing multilevel studies of societal determinants of oral health.

Investigating social inequalities in older adults' dentition and the role of dental service use in 14 European countries

BACKGROUND

Oral disease, despite being largely preventable, remains the most common chronic disease worldwide and has a significant negative impact on quality of life, particularly among older adults.

OBJECTIVE

This study is the first to comprehensively and at a large scale (14 European countries) measure the social inequalities in the number of natural teeth (an informative oral health marker) in the over 50-year-old population and to investigate the extent to which such inequalities are attributable to dental service use.

METHODS

Using Wave 5 of the Survey of Health, Ageing and Retirement in Europe, which included internationally harmonized information on over 50,000 individuals across 14 European countries, we calculated Gini and Concentration indices (CI) as well as the decompositions of CIs by socioeconomic factors.

RESULTS

Sweden consistently performed the best with the lowest inequalities as measured by Gini (0.1078), CI by income (0.0392), CI by education (0.0407), and CI by wealth (0.0296). No country performed the worst in all inequality measures. However, unexpectedly, some wealthier countries (e.g., the Netherlands and Denmark) had higher degrees of inequalities than less-wealthy countries (e.g., Estonia and Slovenia). Decomposition analysis showed that income, education, and wealth contributed substantially to the inequalities, and dental service use was an important contributor even after controlling for income and wealth.

CONCLUSIONS

The study highlighted the importance of comprehensively investigating oral health inequalities. The results are informative to policymakers to derive country-specific health policy recommendations to reduce oral health inequalities in the older population and also have implications for oral health improvement of the future generations.

Socioeconomic Inequalities in Oral Health among Middle-Aged and Elderly Japanese: NIPPON DATA2010

BACKGROUND

Most studies on socioeconomic inequalities in oral health have not considered the effects of behavioral and biological factors and age differences. Furthermore, the nationwide status of inequalities remains unclear in Japan.

METHODS

We analyzed data from 2,089 residents aged ≥40 years throughout Japan. The lowest quartile of the number of remaining teeth for each 10-year age category was defined as poor oral health. Behavioral and biological factors included smoking status, obesity, diabetes mellitus, high-sensitivity C-reactive protein, and the use of dental devices. Multiple logistic regression analyses were conducted to examine the associations of educational attainment and equivalent household expenditure (EHE) with oral health, and stratified analyses by age category were also conducted (40-64 years and ≥65 years).

RESULTS

Lower education and lower EHE were significantly associated with an increased risk of poor oral health after adjusting for age, sex, employment status, marital and living statuses, and EHE/education; the odds ratio for junior high school education compared with ≥college education was 1.84 (95% confidence interval [CI], 1.36-2.49), and the odds ratio of the lowest compared with the highest EHE quartile was 1.91 (95% CI, 1.43-2.56). Further adjustments for behavioral and biological factors attenuated but did not eliminate these associations. EHE was significantly associated with oral health among elderly adults only, with a significant interaction by age category.

CONCLUSIONS

Those with a lower education and those with lower EHE had a significantly higher risk of poor oral health, even after adjustments for behavioral and biological factors.

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.

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.

Brazilian Dental Students' Attitudes About Provision of Care for Patients Living in Poverty

The aims of this study were to investigate dental students' attitudes toward people living in poverty and the extent to which their perceptions were associated with their willingness to treat those patients in their future practice. All 910 dental students enrolled in three Brazilian public universities in 2010 were invited to take part in a cross-sectional survey. A total of 766 students (83.7% response rate) completed the self-administered questionnaire on their perceptions of and attitudes about poverty and their intention to provide dental care to poor people. The responding students showed slightly positive attitudes about people living in poverty; however, a high percentage (35%) reported thinking they were different from the rest of the population. Nevertheless, most of these students expressed willingness to provide care to underserved populations in their future practice; this willingness was found to be associated with their beliefs about poverty (OR 1.65; 95% CI=1.41-1.94). Overall, the study found that these dental students had altruistic views toward people living in poverty. However, they seemed to lack a deep understanding of poverty that may prevent them from acting on their good intentions.

Inequalities in oral health: Understanding the contributions of education and income

OBJECTIVE

To quantify the extent to which income and education explain gradients in oral health outcomes.

METHODS

Using data from the Canadian Community Health Survey (CCHS 2003), binary logistic regression models were constructed to examine the relationship between income and education on self-reported oral health (SROH) and chewing difficulties (CD) while controlling for age, sex, ethnicity, employment status and dental insurance coverage. The relative index of inequality (RII) was utilized to quantify the extent to which income and education explain gradients in poor SROH and CD.

RESULTS

Income and education gradients were present for SROH and CD. From fully adjusted models, income inequalities were greater for CD (RIIinc = 2.85) than for SROH (RIIinc = 2.75), with no substantial difference in education inequalities between the two. Income explained 37.4% and 42.4% of the education gradient in SROH and CD respectively, whereas education explained 45.2% and 6.1% of income gradients in SROH and CD respectively. Education appears to play a larger role than income when explaining inequalities in SROH; however, it is the opposite for CD.

CONCLUSION

In this sample of the Canadian adult population, income explained over one third of the education gradient in SROH and CDs, whereas the contribution of education to income gradients varied by choice of self-reported outcome. Results call for stakeholders to improve affordability of dental care in order to reduce inequalities in the Canadian population.

Socioeconomic inequality in clusters of health-related behaviours in Europe: latent class analysis of a cross-sectional European survey

Background

Modifiable health-related behaviours tend to cluster among most vulnerable sectors of the population, particularly those at the bottom of the social hierarchy. This study aimed to identify the clusters of health-related behaviours in 27 European countries and to examine the socioeconomic inequalities in these clusters.

Methods

Data were from Eurobarometer 72.3–2009, a cross-sectional survey of 27 European countries. The analyses were conducted in 2016. The main sections of the survey included questions pertaining to sociodemographic factors, health-related behaviours, and use of services. In this study, those aged 18 years and older were included. We selected five health-related behaviours, namely smoking, excessive alcohol consumption, frequent fresh fruit consumption, physical activity and dental check-ups. Socioeconomic position was indicated by education, subjective social status and difficulty in paying bills. Latent class analysis was conducted to explore the clusters of these five behaviours. Multinomial logistic regression model was used to examine the relationships between the clusters and socioeconomic positions adjusting for age, gender, marital status and urbanisation.

Results

The eligible total population was 23,842. Latent class analysis identified three clusters; healthy, moderate and risky clusters in this European population. Individuals with the lowest socioeconomic position were more likely to have risky and moderate clusters than healthy cluster compared to those with the highest socioeconomic position.

Conclusions

There were clear socioeconomic gradients in clusters of health-related behaviours. The findings highlight the importance of adopting interventions that address multiple health risk behaviours and policies that tackle the social determinants of health-related behaviours.

Does a social/behavioural gradient in dental health exist among adults? A cross-sectional study

Objective

To explore the potential presence of a social/behavioural gradient in dental health among Italian adults using a cross-sectional study.

Methods

Caries indices were recorded among 480 subjects (52.9% men, 47.1% women) who also completed a structured self-administered social and behavioural questionnaire. A social/behavioural gradient was generated as the sum of the worst circumstances recorded on the questionnaire (cariogenic diet, smoking, lowest occupational profile, brushing teeth < twice daily, lowest educational level, uneven dental examination attendance).

Results

Caries figures (DMFT) and the number of filled sound teeth (FS-T) were statistically significantly linked to the social/behavioural gradient (DMFT: χ²₍₉₎ = 20.17 p = 0.02, Z = 0.02 p = 0.99; FS-T: χ²₍₉₎ = 25.68 p < 0.01, Z = −4.31 p < 0.01). DMFT was statistically significantly associated with gender and with social and behavioural variables. FS-T was higher in women (p = 0.03) and was linked to smoking (p < 0.01).

Conclusions

The proposed social/behavioural gradient demonstrated how subjects reporting the worst circumstances on the questionnaire exhibited the worst dental health. The use of the gradient demonstrates that health promotion and prevention cannot be compartmentalized.

Socioeconomic inequalities in dental health among middle-aged adults and the role of behavioral and psychosocial factors: evidence from the Spanish National Health Survey

BACKGROUND

The goal of this analysis was to describe socioeconomic inequalities in dental health among Spanish middle-aged adults, and the role of behavioral and psychosocial factors in explaining these inequalities.

METHODS

This cross-sectional study used survey data from the 2006 Spanish National Health Survey and focused on adults ages 30 - 64. The outcome was dental health status based on the presence of self-reported dental problems. We used education, income, and occupational class as indicators of socioeconomic position and applied logistic regression analysis to estimate associations. We included behavioral and psychosocial variables in the models and compared non-adjusted to adjusted estimates to assess their potential role in explaining socioeconomic gradients.

RESULTS

Results showed clear socioeconomic gradients in dental health among middle-aged adults. The percentage of people who reported more dental problems increased among those with lower levels of education, income, and occupation. These gradients were statistically significant (p < .001). Logistic regression showed that groups with lower education, income, and occupation had higher odds of reporting the outcome (p < .001). Associations were stronger when considering education as the indicator of socioeconomic position. Substantial unexplained associations remained significant after adjusting the model by behavioral and psychosocial variables.

CONCLUSIONS

This study shows significant socioeconomic gradients in dental health among middle-aged adults in Spain. Behavioral and psychosocial variables were insufficient to explain the inequalities described, suggesting the intervention of other factors. Further research should incorporate additional explanations to better understand and comprehensively address socioeconomic inequalities in dental health.