Barriers and enablers to accessing dental services for people experiencing homelessness: A systematic review

A stakeholder co-design approach to designing a dental service for adults experiencing homelessness

Introduction

The homeless population faces a "cliff edge of inequality" when trying to access essential dental services. There are several additional barriers to accessing dental care in comparison to the general population and the heterogeneous nature of patients presents a significant challenge when designing dental services to meet their needs. Following the Smile4Life report in 2009, there is limited up-to-date and population-specific evidence available for the optimal model of service delivery.

Aim

This study aimed to co-design principles for a prospective dental service for adults experiencing homelessness.

Methods

A qualitative methodology was used to incorporate experts-by-experience into elements of co-designing a dental service for adults experiencing homelessness. The study combined elements of an experienced-based co-design framework for healthcare innovation with community-based participatory research. Focus groups with people experiencing homelessness and healthcare practitioners were conducted to identify principles for any prospective dental service, as well as several barriers and enablers to establishing a homeless dental service. The findings were transcribed and analysed using thematic analysis on Nvivo software.

Results

From the qualitative analysis five key themes emerged: (1) Impact and expectations of oral health while experiencing homelessness, (2) Barriers to accessing dental care; (3) Practitioner's views about homelessness and access to care; (4) Barriers to designing a homeless service and (5) Enablers for co-designing a new model of dental care delivery for the homeless population.Five key principles for a new model of homeless dental service were identified: (i) Services designed to address the needs of patients; (ii) Services delivered in a safe and welcoming environment (iii) Training and consistency of staff; (iv) Focus on dental education (v) Developing peer mentoring and peer support.

Conclusion

While the barriers to accessing dental care while homeless are well established and understood by healthcare practitioners, more work is required to gain consensus on the most effective way to deliver an innovative a sustainable dental service for patients experiencing homelessness. Previous negative experiences, lack of readily available information on services and barriers to access in the current system could be addressed by developing peer mentors within the homeless community, empowering individuals to share their knowledge and skills to support others in improving their oral health.

Improving oral health and related health behaviours (substance use, smoking, diet) in people with severe and multiple disadvantage: A systematic review of effectiveness and cost-effectiveness of interventions

BACKGROUND

People experiencing homelessness co-occurring with substance use or offending ('severe and multiple disadvantage' SMD) often have high levels of poor oral health and related health behaviours (particularly, substance use, smoking, poor diet). This systematic review aimed to assess the effectiveness and cost-effectiveness of interventions in adults experiencing SMD to improve oral health and related health behaviours.

METHODS AND FINDINGS

From inception to February 2023, five bibliographic databases (MEDLINE, EMBASE, PsycINFO, CINAHL, and Scopus) and grey literature were searched. Two researchers independently screened the search results. Randomized controlled trials (RCTs), comparative studies and economic evaluations were included that reported outcomes on oral health and the related health behaviours. Risk of bias was assessed and results narratively synthesized. Meta-analyses were performed where appropriate. This review was registered with PROSPERO (reg. no: CRD42020202416). Thirty-eight studies were included (published between 1991 and 2023) with 34 studies reporting about effectiveness. Most studies reported on substance use (n = 30). Interventions with a combination of housing support with substance use and mental health support such as contingent work therapy appeared to show some reduction in substance use in SMD groups. However, meta-analyses showed no statistically significant results. Most studies had short periods of follow-up and high attrition rates. Only one study reported on oral health; none reported on diet. Three RCTs reported on smoking, of which one comprising nicotine replacement with contingency management showed improved smoking abstinence at 4 weeks compared to control. Five studies with economic evaluations provided some evidence that interventions such as Housing First and enhanced support could be cost-effective in reducing substance use.

CONCLUSION

This review found that services such as housing combined with other healthcare services could be effective in improving health behaviours, particularly substance use, among SMD groups. Gaps in evidence also remain on oral health improvement, smoking, and diet. High quality studies on effectiveness with adequate power and retention are needed to address these significant health challenges in SMD populations.

A cross-sectional study on oral health-care habits and oral-health-related quality-of-life in marginalized persons in Copenhagen

OBJECTIVE

The aim of this cross-sectional study was to investigate the oral-health-related quality-of-life (OHRQoL) and oral health-care habits in a population of marginalized persons in Copenhagen.

MATERIALS AND METHODS

Patients attending a dental clinic for marginalized persons filled in the 14-item version of the oral-health-impact profile (OHIP-14) regarding their OHRQoLand a questionnaire on their oral health-care habits. Age, gender, smoking habits, need for general and oral health-care, and living conditions were further registered.

RESULTS

Of the 212 participants, 72% had not visited a dental clinic within the past two years and in 68% of the cases, the last dental visit was related to dental treatment. Tooth brushing at least once a day was reported by 93%. The mean OHIP-14 score in the participants was 24.9 (SD: 13.6). The most frequent problems were pain, chewing difficulties, being self-conscious, tense, and embarrassed as well as affected life. The mean OHIP-14 score was significantly higher in participants in need of general health-care (29.5, SD: 12.2) than in participants not in need of general health-care (22.8, SD: 13.9). The same applied to participants referred for dental treatment (26.1, SD: 12.7) compared to participants not being referred (20.2, SD: 15.9).

CONCLUSIONS

The OHRQoLis poor in the population with pain, chewing difficulties and aesthetic issues as the most prominent problems. The participants had low and treatment-oriented use of the dental care system. This indicates a high need for dental care in the population with a focus on including them in the dental care system.

A Scoping Review of the Oral Health Status, Oral Health Behaviours and Interventions to Improve the Oral Health of Children and Young People in Care and Care Leavers

BACKGROUND

Children and young people (CYP) in care experience poorer physical health and overall wellbeing in comparison to their peers. Despite this, relatively little is known about what their oral health needs and behaviours are. The aim of this scoping review was to provide a global perspective on the oral health status and behaviours of CYP in care and care leavers. It also aimed to synthesise interventions that have been trialled in this population to improve oral health.

METHODS

Five databases were searched, Ovid Embase, Ovid MEDLINE, CINAHL (EBSCOhost), SocINDEX (EBSCOhost) and Dentistry and Oral Sciences Source (EBSCOhost), alongside grey literature sources up to January 2023. Eligibility criteria were studies that (i) reported on children and adolescents aged 25 years or younger who are currently in formal/informal foster or residential care and care leavers, (ii) pertained to oral health profile, behaviours or oral health promotion interventions (iii) and were published in the English language. Thematic analysis was used to develop the domains for oral health behaviours and interventions.

RESULTS

Seventy-one papers were included. Most papers were published from very high or medium Human Development Index countries. CYP in care were found to experience high levels of decay, dental trauma, periodontal disease and poorer oral health-related quality of life. Oral health behaviours included limited oral health self-care behaviours and a lack of oral health-based knowledge. The trialled interventions involved oral health education, supervised brushing and treatment or preventative dental care.

CONCLUSIONS

This scoping review reveals that CYP in care experience poorer oral health in comparison to their peers. They are also less likely to carry out oral health self-care behaviours. This review highlights a scarcity of interventions to improve the oral health of this population and a paucity of evidence surrounding the oral health needs of care leavers.

Factors influencing implementation and sustainability of interventions to improve oral health and related health behaviours in adults experiencing severe and multiple disadvantage: a mixed-methods systematic review

OBJECTIVES

Among people experiencing severe and multiple disadvantage (SMD), poor oral health is common and linked to smoking, substance use and high sugar intake. Studies have explored interventions addressing oral health and related behaviours; however, factors related to the implementation of these interventions remain unclear. This mixed-methods systematic review aimed to synthesise evidence on the implementation and sustainability of interventions to improve oral health and related health behaviours among adults experiencing SMD.

METHODS

Bibliographic databases (MEDLINE, EMBASE, PsycINFO, CINAHL, EBSCO, Scopus) and grey literature were searched from inception to February 2023. Studies meeting the inclusion criteria were screened and extracted independently by two researchers. Quality appraisal was undertaken, and results were synthesised using narrative and thematic analyses.

RESULTS

Seventeen papers were included (published between 1995 and 2022). Studies were mostly of moderate quality and included views from SMD groups and service providers. From the qualitative synthesis, most findings were related to aspects such as trust, resources and motivation levels of SMD groups and service providers. None of the studies reported on diet and none included repeated offending (one of the aspects of SMD). From the quantitative synthesis, no difference was observed in programme attendance between the interventions and usual care, although there was some indication of sustained improvements in participation in the intervention group.

CONCLUSION

This review provides some evidence that trust, adequate resources and motivation levels are potentially important in implementing interventions to improve oral health and substance use among SMD groups. Further research is needed from high quality studies and focusing on diet in this population.

PROSPERO REGISTRATION NUMBER

CRD42020202416.

Interventions to promote the health and well-being of children under 5s experiencing homelessness in high-income countries: a scoping review

OBJECTIVES

Homelessness among families with children under 5 residing in temporary accommodation is a growing global concern, especially in high-income countries (HICs). Despite significant impacts on health and development, these 'invisible' children often fall through the gaps in policy and services. The study's primary objective is to map the content and delivery methods of culturally sensitive interventions for children under 5 experiencing homelessness in HICs.

DESIGN

A scoping review guided by the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews checklist.

DATA SOURCES

Databases include PubMed, Medline, SCOPUS, The Cochrane Library and Google Scholar were searched up to 24 March 2022.

ELIGIBILITY CRITERIA

This scoping review includes studies that describe, measure or evaluate intervention strategies aimed at improving child health programmes, specifically those yielding positive outcomes in key areas like feeding, nutrition, care practices and parenting.

DATA EXTRACTION AND SYNTHESIS

Articles were selected and evaluated by two independent reviewers, with a dispute resolution system involving a third reviewer for contested selections. The methodological quality of the studies was assessed using various tools including the Risk of Bias (RoB) tool, Cochrane RoB V.2.0, the Risk of Bias Assessment Tool for Non-randomized Studies (RoBANS) and the Grading of Recommendations Assessment, Development, and Evaluation (GRADE), each selected according to the type of article.

RESULTS

The database search yielded 951 results. After deduplication, abstract screening and full review, 13 articles met the inclusion criteria. Two predominant categories of intervention delivery methods were identified in this research: group-based interventions (educational sessions) and individual-based interventions (home visits).

CONCLUSION

This review highlights effective interventions for promoting the health and well-being of children under 5 experiencing homelessness, including educational sessions and home visits. Research has supported the importance of home visiting to be instrumental in breaking down language, cultural and health literacy barriers.

Best practice models for dental care delivery for people experiencing homelessness

People experiencing homelessness have been encountering significant barriers in accessing healthcare services, including dental care services. There are several definitions for homelessness: it includes people sleeping rough but also people living in temporary accommodation. These categories are dynamic and individuals often find themselves on a continuum oscillating between sleeping rough and living in temporary accommodation. Their health-seeking behaviours are shaped by their living arrangements; therefore, one single model of dental care service delivery might not capture the needs of all those experiencing homelessness within an area. The service models presented in this paper are based on primary care delivery, mobile dental units and community clinics. Each of these models presents advantages and disadvantages and consideration should be given to delivering these on a complementary basis to maximise access to dental care, regardless of where patients are on the continuum between sleeping rough and living in temporary accommodation.

Oral health-related stigma: Describing and defining a ubiquitous phenomenon

This paper is the fourth of a series of narrative reviews to critically rethink underexplored concepts in oral health research. The series commenced with an initial commissioned framework of Inclusion Oral Health, which spawned further exploration into the social forces that undergird social exclusion and othering. The second review challenged unidimensional interpretations of the causes of inequality by bringing intersectionality theory to oral health. The third exposed how language, specifically labels, can perpetuate and (re)produce vulnerability by eclipsing the agency and power of vulnerabilised populations. In this fourth review, we revisit othering, depicted in the concept of stigma. We specifically define and conceptualize oral health-related stigma, bringing together prior work on stigma to advance the robustness and utility of this theory for oral health research.

Oral health of people experiencing homelessness in London: a mixed methods study

BACKGROUND

Those experiencing homelessness have significant health and oral health needs and are at the extreme of health inequalities. The aim of the study was to conduct an oral health needs assessment for those experiencing homeless in London and impacts on their oral health-related quality of life.

METHODS

The oral health needs assessment consisted of quantitative and qualitative methods. This included a survey questionnaire to assess perceived oral health needs, and oral health related quality of life. In addition, a focus group was conducted with 13 peer advocates.

RESULTS

Findings from the focus group revealed numerous challenges for homeless populations to maintain good oral health and access to dental care including mental ill-health, stigma, costs, and chaotic lifestyles. A response rate of 79% (n = 315) was achieved for the questionnaire survey. Results showed high levels of unmet dental needs and risky health behaviours including 60% reporting being smokers, 39% consuming high amounts of sugar and 52.4% brushing their teeth less than twice a day. More than a third (32.1%) had experienced toothache. The majority of respondents 80% (n = 224) were very or fairly concerned about their dental health. There were significant associations between perceived oral health status and oral health-related quality of life.

CONCLUSION

Those experiencing homelessness in London were found to have high levels of unmet oral health needs, which significantly impacted on their oral health-related quality of life. Focusing on changing behaviours alone is insufficient and therefore addressing the structural determinants of homelessness is vital in improving oral and health outcomes of this vulnerable population.

'What does good look like'-exploring access to healthcare for the homeless population in Gateshead, England

BACKGROUND

individuals who are homeless encounter extreme health inequalities and as a result often suffer poor health. This study aims to explore ways in which access to healthcare could be improved for individuals who are homeless in Gateshead, UK.

METHODS

twelve semi-structured interviews were conducted with people working with the homeless community in a non-clinical setting. Transcripts were analysed using thematic analysis.

RESULTS

six themes were identified under the broad category of 'what does good look like', in terms of improving access to healthcare. These were: facilitating GP registration; training to reduce stigma and to provide more holistic care; joined-up working in which existing services communicate rather than work in isolation; utilising the voluntary sector as support workers could actively support access to healthcare and provide advocacy; specialised roles such as specialised clinicians, mental health workers or link workers; and specialised bespoke services for the homeless community.

CONCLUSIONS

the study revealed issues locally for the homeless community accessing healthcare. Many of the proposed actions to facilitate access to healthcare involved building upon good practice and enhancing existing services. The feasibility and cost-effectiveness of interventions suggested requires further assessment.

Cancer risk factors and access to cancer prevention services for people experiencing homelessness: a scoping review protocol

INTRODUCTION

Homelessness is a complex social issue that significantly impairs the health of those affected. People experiencing homelessness (PEH) have a higher prevalence of adverse health outcomes, including premature mortality, compared with the general population, with cancer being the second-leading cause of death. The objective of this scoping review is to map the evidence to assess the exposure of PEH to known cancer risk factors and identify barriers and facilitators PEH experience in accessing cancer prevention services.

METHODS AND ANALYSIS

This scoping review will be conducted in line with the Joanna Briggs Institute guidelines for scoping reviews. For a time window from the date of database establishment until 20 February 2023, the research team will create a detailed search strategy and apply it to the following databases: CINAHL, Embase, Global Index Medicus, PubMed, Scopus and Web of Science. In addition, we will search OpenGrey and Google for grey literature and contact non-governmental organisations to request relevant reports. In the first stage, eligibility criteria will be assessed through a blinded title/abstract assessment, and following this assessment, a full-text screening will be performed. Subsequently, the research team will perform the data extraction and synthesise all relevant information in relation to the scoping review question.

ETHICS AND DISSEMINATION

As this protocol does not involve gathering primary data, ethical approval is not necessary. The results of this review will be published in a peer-reviewed journal and on institutional websites.

Models of dental care for people experiencing homelessness in the UK: a scoping review of the literature

Background People who experience homelessness have poor oral health and face barriers to accessing care. Recommendations have been outlined for health services to address their needs, termed 'inclusion health'. The Smile4Life report recommended three 'tiers' of dental service: emergency, ad hoc and routine care. Other medical services have developed into different models of care, for example mainstream practices with enhanced services for people who experience homelessness. There is little understanding of how inclusion health recommendations have been implemented across dental settings.Aims To describe and compare dental services that exist for people who experience homelessness in the UK.Methods Two Medline searches were performed in October 2020 to assess the models of dental care for people who experience homelessness in the UK.Results Nine dental services in the UK were identified who treated people who experience homelessness. Most did not explore definitions of homelessness. There were a mixture of models, including using blended approaches, such as different sites and appointment types, to flex to the needs of their population.Conclusion Many services that are dedicated to treat this population are based in the community dental services which allows for flexible models of care due to sporadic patient attendance, high treatment requirements and complex needs. More research is required to determine how other settings can accommodate these patients, as well as understanding how more rural populations access dental care.

Evaluation of Mobile and Community Dental Service Use among People Experiencing Homelessness

The aim of the study was to evaluate the patterns of mobile and community dental service use among people experiencing homelessness in Bratislava, Slovakia. Data from medical records of homeless people who visited the mobile and community dental clinic from November 2012 to July 2018 have been retrospectively reviewed. The experience of providing dental services has been reported from the perspective of the dental care provider. Descriptive statistics were used for data analysis. In total, 319 patients (75.5% men) attended the clinic. Extraction of a tooth was the main dental treatment indicated in more than 80% (n = 276) of patients. A total of 363 teeth were extracted with an average number of 1.6 extracted teeth per patient. The main indications for extraction were dental caries and its sequelae (83.7%) and periodontal disease (15.2%). The patients with the need for prosthetic and conservative treatment were referred to the clinics at University Hospital; however, only 19 patients received the treatment. The barriers to accessing dental care were cost, logistic problems and individual psychological factors. We found that people experiencing homelessness in Slovakia have high needs and demands of emergency dental care and many systemic and individual barriers prevent them from accessing care. Community-based dental services are important for improving access to dental care and reducing oral health inequities.

Community-centred oral healthcare for adults experiencing homelessness in Australia: Perceptions and experiences of key stakeholders

The objective of the study was to identify whether creating a responsive, respectful and trustworthy environment that provides free dental care for clients who are homeless using volunteer dental professionals was effective in meeting their oral health needs in Fremantle, Western Australia. Qualitative research conducted between October 2018 and August 2019 was guided by a social constructivist paradigm to gather and analyse data. Semi-structured interviews were conducted with adults experiencing homelessness accessing a community dental clinic and health providers and other stakeholders involved in its establishment, management and service delivery. An inductive approach to analysis was used to organise themes under the categories of 'establishing the oral health clinic' (OHC) and 'responses to the implementation of the clinic' Thirty-nine semi-structured interviews were conducted across eight participant groups: clients, executive management, the oral health clinical reference group, volunteer dentists, employed staff, nursing students, volunteer staff and other stakeholders. Key findings across all groups included positive responses to the establishment and implementation of the OHC, the quality of care and the safe and respectful environment in which services were delivered. Challenges related to sustainability include uncertainty around ongoing funding and recruitment of dental professionals. Whilst volunteer dental services fill a gap in meeting the complex needs of this population group, mainstream services must consider and address issues of equity in this context. Findings can be used to guide this process that includes creating environments of respect and trust where adults who are homeless or at risk of homelessness feel safe, welcomed and more likely to return to the service.

Access to healthcare for people experiencing homelessness in the UK and Ireland: a scoping review

Background

People experiencing homelessness (PEH) have poorer physical and mental health than the general population. They are also more likely to have less access to healthcare. These processes of access can be better understood using Levesque’s access framework which addresses both supply (service provision) and demand (user abilities).

Methods

Following the Joanna Briggs Institute (JBI) guidelines, electronic peer-reviewed databases were searched in February 2022 for studies published since 2000 related to access to healthcare for PEH ages 16 and older in the United Kingdom (UK) and Ireland. Retrieved articles were screened and those eligible were selected for data extraction. Qualitative and quantitative studies were included.

Results

Fifty-six papers out of 538 identified were selected and aliased. Six main themes were identified: staff education, flexibility of systems, service coordination, patient preparedness, complex health needs and holistic care. These relate to the Levesque access framework.

Conclusions

Improving access to healthcare for PEH requires changes to how services are provided and how service-user abilities are supported.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-022-08265-y.

Unmet dental care needs of homeless adults in South Korea: Findings from a national survey

This study identifies the key factors underlying the unmet dental care needs of South Korean homeless adults that obstructed their dental service access. We analysed data from 551 Korea Homeless Survey respondents (17 years and older) who reported having an oral disease in the previous 12 months. We conducted multiple logistic regression analyses to examine the factors associated with homeless individuals' unmet dental care needs, using weights to make the data nationally representative. Approximately 43% of the homeless people reported having unmet dental care needs. Housing type (living in the street) was significantly associated with an increased odds ratio of unmet dental care needs. However, when social protection programs (housing benefits and Medical Aid [MA]) were included in the model, the statistical significance of the housing type disappeared. Homeless MA recipients were less likely to have unmet needs than those not covered by MA. On the other hand, homeless people who received housing benefits were more likely to receive dental care than people who do not receive these benefits. Consequently, policy makers should develop social protection programs influencing homeless individuals' access to dental care and ensure the sustainable implementation of integrated community-based dental services for homeless adults.

A survey of dental services in England providing targeted care for people experiencing social exclusion: mapping and dimensions of access

Introduction Poor oral health and barriers to accessing dental services are common among people experiencing social exclusion. This population experience a disproportionate and inequitable burden of oral disease. A small number of dental services have published models of care that target this population, but no national surveys have been conducted.Aims This study aims to identify what types of services are providing dental and oral healthcare for people experiencing social exclusion in England and the models of delivery adopted by these services.Methods A snowballing sampling strategy was used to identify services that provide targeted for adults experiencing social exclusion. The study used a survey to collect data about the location, service models and barriers and enablers of these services.Results In total, 74 responses from different services met the inclusion criteria for the study. Seventy one were included in the mapping exercise and 53 provided free-text comments that contributed to an understanding of barriers and enablers of services.Discussion Most services operated to meet the needs of the mainstream population and described inflexibilities in their service design models as barriers to providing care for socially excluded groups.Conclusion Limitations of current models of service delivery create frustrations for providers and people experiencing social exclusion. Creative commissioning and organisational flexibility are key to facilitating adaptable services.

Factors affecting oral health care for asylum seekers and refugees in England: a qualitative study of key stakeholders' perspectives and experiences

Aims To investigate factors influencing oral health behaviours and access to dental services for asylum seekers and refugees (ASRs).Methods A qualitative research study using purposeful sampling was undertaken in South West England. Online semi-structured interviews with stakeholders working with or supporting ASRs were analysed through reflexive thematic analysis.Results Twelve participants providing support to ASRs in various capacities participated. Two interviewees had lived experience of forced displacement and the UK asylum process. Key themes into what hinders ASRs' oral health care were: prioritising safety and survival; variations in cultural norms and practice; lack of knowledge about dental care; financial hardship and affordability of care; a gulf of understanding of what dental care would be like and experiences of it; and structures of dental services that leave vulnerable groups behind. Opportunities for improving oral health care were: accessible oral health education; partnership working and creating supportive environments; translation; providing culturally sensitive and person-centred care; and incorporating ASRs' views into service design.Conclusions Several factors affect to what extent ASRs can and are willing to engage with oral health care. Co-developing accessible and relevant prevention programmes and ensuring equitable access to dental services for ASRs is important. Future research should explore ASRs' views and experiences of dental care and explore informed suggestions on how to optimise oral health promotion and provision of care.

Developing a voluntary initiative for homeless populations in general dental practice

The number of people experiencing homelessness is increasing in the UK and their access to general dental services is particularly challenging. This is often due to the numerous barriers that homeless populations face in accessing dental services. In this article, we provide information about a voluntary dental initiative that was set up in 2020 to cater to the needs of homeless populations. We give details of how this initiative started, reasons for attendance and services provided, collaborations, financial considerations and ways in which additional support is provided to patients. We end this article by outlining our key learning points, positive impacts of the initiative and a conclusion/summary of future plans.

Describes the model of a voluntary initiative set up in a West London general dental practice to cater to the needs of homeless populations.

Provides information and details about the day-to-day running and management of this project that may be helpful to members of the dental team.

Outlines key learning points and positive impacts from the project.

Authors are happy to be a port of call for further information or potential collaborations.

Development and Initial Evaluation of a Nurse-Led Healthcare Clinic for Homeless and At-Risk Populations in Tasmania, Australia: A Collaborative Initiative

People who are homeless experience significantly poorer health than the general population and often face multifaceted challenges engaging with public healthcare services. Mission Health Nurse-led Clinic (MHNC) was established in 2019 to meet the healthcare needs of this marginalised population in Launceston, Tasmania. This study examines barriers to healthcare access amongst individuals who experience homelessness, client and staff perceptions of the MHNC services and explored opportunities for service expansion. Descriptive statistics were drawn from administrative data, and all interviews were thematically analysed. A total of 426 presentations were reported for 174 individuals experiencing homelessness over 26 months. The median client age was 42 years and 60.9% were male; A total of 38.5% were homeless or lived in a supported accommodation. The predominant reasons for clinic visits included prescription requests (25.3%) and immunisations (20.1%). A total of 10 clients and 5 City Mission staff were interviewed with three themes emerging from the findings: personal vulnerability, disconnectedness and acceptability of the MHNC. The MHNC services were reported to be highly appreciated by all clients. Mental health and allied health, extra operating hours and maintaining the flexibility of walk-in appointments were suggested as expansion areas for the service and were highlighted as ways to increase engagement for improved health outcomes. Continued partnerships with interprofessional primary healthcare providers would contribute to addressing unmet healthcare needs in this vulnerable population.

Exploring Interventions to Improve the Oral Health and Related Health Behaviours of Adults Experiencing Severe and Multiple Disadvantage: Protocol for a Qualitative Study with Stakeholders

The number of individuals in England experiencing homelessness, substance use, and involvement with the criminal justice system is increasing. These issues, referred to as severe and multiple disadvantage (SMD), are often interlinked and co-occur. Health inequalities, particularly poor oral health, persist for those facing these inter-related issues and are closely linked with high levels of substance use, smoking, and poor diet. However, evidence for interventions that can improve these health outcomes for those experiencing these issues is limited. This paper outlines the design of a qualitative study which aims to explore the perspectives of stakeholders to understand what interventions can help to support SMD groups with their oral health and related health behaviours (i.e., substance use, smoking, diet). Interviews and focus groups will be undertaken with stakeholders comprising two groups: (1) individuals with experience of SMD, and (2) service providers (staff and volunteers), policy makers, and commissioners who support such individuals. Public involvement and engagement is central to the project. For example, stakeholders and research partners in policy and practice and people with lived experience of SMD will provide input at all stages of this study. Findings from the study will inform an ‘evidence for practice’ briefing outlining recommendations for policy. Dissemination will occur through presentations to a range of practice, policy and academic beneficiaries, and through peer-reviewed publications.

Investigating the Effectiveness and Acceptability of Oral Health and Related Health Behaviour Interventions in Adults with Severe and Multiple Disadvantage: Protocol for a Mixed-Methods Systematic Review

Increasing numbers of people in England experience homelessness, substance use, and repeated offending (known as 'severe and multiple disadvantage'; SMD). Populations experiencing SMD often have extremely poor oral health, which is closely inter-linked with high levels of substance use, smoking, and poor diet. This study aims to undertake an evidence synthesis to identify the effectiveness, resource requirements, and factors influencing the implementation and acceptability of oral health and related health behaviour interventions in adults experiencing SMD. Two systematic reviews will be conducted using mixed-methods. Review 1 will investigate the effectiveness and resource implications of oral health and related health behaviours (substance use, smoking, diet) interventions; Review 2 will investigate factors influencing the implementation of such interventions. The population includes adults (≥18 years) experiencing SMD. Standard review methods in terms of searches, screening, data extraction, and quality appraisal will be conducted. Narrative syntheses will be conducted. If feasible, a meta-analysis will be conducted for Review 1 and a thematic synthesis for Review 2. Evidence from the two reviews will then be synthesised together. Input from people with experience of SMD will be sought throughout to inform the reviews. An initial logic model will be iteratively refined during the review.

Improving access of young adults with experience of homelessness to primary care dental services in the UK: A realist synthesis

OBJECTIVE

To understand why, how and under what circumstances interventions lead to improved access of young adults with experience of homelessness (YAEH) to primary care dental services in the UK.

METHODS

We followed a realist, theory-driven methodology. It involved locating existing theories, searching for evidence, document selection, data extraction/appraisal and evidence synthesis. We searched scientific databases and grey literature sources. We used these data and relevant substantive theories to develop explanations of how, why and under what circumstances interventions lead to desired outcomes. We presented these explanations in the form of context-mechanism-outcome configurations (CMOCs). The CMOCs were incorporated in an overarching programme theory, which was iteratively developed and refined throughout the realist synthesis.

RESULTS

We used 106 scientific and 18 grey literature records to synthesize 61 CMOCs. Our revised programme theory highlights the importance of four main considerations: 'preparing a service', 'producing and disseminating information', 'outreach activities' and 'facilitating interactions'. When designing dental programmes for YAEH, we recommend considering the importance of prior service planning (including resourcing of emergency dental care, training staff and incorporating safety measures), creating positive experiences, flexibility, patient-centeredness, being informative and reassuring, creating an enabling environment (including strong communication, building rapport and avoiding negative judgements), having realistic expectations and designing services that empower patients.

CONCLUSIONS

Improving dental access of YAEH requires attention to multiple levels. Services can achieve positive outcomes by understanding the complexity of YAEH lives, and creating contextual circumstances that encourage their attendance.

Substance use disorder and homelessness among American Indians and Alaska Natives in California

American Indian and Alaska Native (AIAN) communities have higher rates of substance use than other racial and ethnic groups. Substance use disorder (SUD) is tied to the increased risk of experiencing homelessness. National policies have also led to the disproportionate rates of homelessness among AIAN communities. However, specific experiences related to the occurrence of SUD and homelessness among AIAN in California, as well as seeking and accessing SUD treatment, are not well understood. This study explored potential SUD risk and resilience factors for AIANs experiencing homelessness and their experiences when seeking services for SUD. Nineteen interviews were conducted in northern, central, and southern California. Thematic analysis was used for these data. The five primary codes were: (1) risk factors for SUD, (2) resilience related to SUD service seeking, (3) services available, (4) barriers accessing services, and (5) services needed. Based on the results, themes for risk were trauma, mental health, and community conditions. Themes for resilience were identified at individual and community levels and included personal motivation and community support and inclusiveness. Themes for services available were limited knowledge about service types and services' location. The themes for barriers accessing services were identified at internal and external levels, and included lack of readiness and transportation challenges, respectively. Themes for services needed included continuum of care, integrated care, and culturally sensitive services. Findings highlight the importance of addressing the potential risk factors and service needs of AIANs experiencing homelessness to provide comprehensive and culturally sensitive services to reduce substance use.

What factors affect patients' ability to access healthcare? An overview of systematic reviews

OBJECTIVES

This overview aims to synthesise global evidence on factors affecting healthcare access, and variations across low- and middle-income countries (LMICs) vs. high-income countries (HICs); to develop understanding of where barriers to healthcare access lie, and in what context, to inform tailored policies aimed at improving access to healthcare for all who need it.

METHODS

An overview of systematic reviews guided by a published protocol was conducted. Medline, Embase, Global Health and Cochrane Systematic Reviews databases were searched for published articles. Additional searches were conducted on the Gates Foundation, WHO and World Bank websites. Study characteristics and findings (barriers and facilitators to healthcare access) were documented and summarised. The methodological quality of included studies was assessed using an adapted version of the AMSTAR 2 tool.

RESULTS

Fifty-eight articles were included, 23 presenting findings from LMICs and 35 presenting findings from HICs. While many barriers to healthcare access occur in HICs as well as LMICs, the way they are experienced is quite different. In HICs, there is a much greater emphasis on patient experience; as compared to the physical absence of care in LMICs.

CONCLUSIONS

As countries move towards universal healthcare access, evaluation methods that account for health system and wider cultural factors that impact capacity to provide care, healthcare finance systems and the socio-cultural environment of the setting are required. Consequently, methods employed in HICs may not be appropriate in LMICs due to the stark differences in these areas.

Theoretical evidence explaining the relationship between socio-demographic and psychosocial barriers on access to oral health care among adults: A scoping review

OBJECTIVES

Current global models for oral health care are outdated. Out of pocket payments and exclusion from most national health systems has created a gap for access of services by socio-economically vulnerable adults. Our objective is to understand barriers to access and the causal associations between barriers to care.

DATA

All study designs with a theoretical/conceptual framework to explain access and barriers among adults were included.

SOURCES

6 electronic databases (PubMed, Medline (EBSCO), CINAHL, Embase, Web of Science) including grey literature searches (ProQuest) and expert consultation. The identified studies were then analysed using narrative synthesis and NVivo.

STUDY SELECTION/RESULTS

40 studies using a theoretical framework to explain access among adults were identified. Andersen's behavioural model was most used. Cost was the primary causal factor that perpetuated the effect of other barriers. Associations were found between age and education level, cost and need, cost and dental anxiety. Study design and analysis used to identify these associations had limitations in determining causality.

CONCLUSION

Oral health access research is based in theory, leading to the identification of socio-demographic and psychosocial barriers and their relationships. However, a lack of explanation of causal associations persists. This review recognises the importance of understanding the cause of barriers in addition to their nature. Appropriate study designs and analysis considering the impact of time varying factors on access is required. Empirical analysis needs to focus on the role of confounders and mediators to determine causality successfully. To achieve this a theory driven causal model has been proposed.

Dental Pain in Homeless Adults in Porto Alegre, Brazil

Objective

To evaluate the association of dental pain with time living on the street in a sample of homeless people in the city of Porto Alegre, Brazil.

Methods

A cross-sectional study was carried out with homeless people who accessed social services in 2017. A questionnaire was administered covering socioeconomic variables and including questions about general health, use of tobacco/alcohol/drugs, use of dental services and history of dental pain. The decayed, missing, and filled teeth (DMFT) index was calculated in an oral examination. The association between socioeconomic characteristics, health status, time of homelessness and dental pain was evaluated using chi-square, t-, and Mann-Whitney tests.

Results

A total sample of 214 homeless people was surveyed. Most were male (76.2%), had a low level of education (67.6%) and experienced many episodes of dental pain during life (91.0%). The last episode of pain was moderate or intense (79.7%) and do-it-yourself measures for pain relief were preferred (62.3%). Individuals who were homeless for longer than 1 year had more dental pain in the past (P < 0.001), more frequency of a recent episode of dental pain (P = 0.03), and sought a dentist or healthcare service to relieve pain less frequently (P = 0.03).

Conclusions

Dental pain is frequent in the context of homelessness and does not necessarily result in seeking dental services, even where there is universal oral health care.

Oral health perceptions and client satisfaction among homeless adults attending a community-centred dental clinic

BACKGROUND

The homeless face significant barriers accessing dental care. Community-centred dental clinics might provide more accessible care to this group. This descriptive epidemiological study aimed to measure oral health perceptions and client satisfaction among homeless and similarly disadvantaged adults receiving community-centred dental care.

METHODS

A sample of 79 clients attending St Patrick's Oral Health Clinic completed Locker's Global Oral Health Item, the Oral Health Impact Profile 14 and the Client Satisfaction Questionnaire 4.

RESULTS

High levels of satisfaction with St Patrick's Oral Health Clinic were based on positive staff attitudes, low cost, time effectiveness and staff sensitivity to anxiety. Ideas for improvement included shorter treatment waiting lists, offering additional treatment types and better communication and advertisement of the service. Compared to the general Australian population, participants reported a relatively poor self-perception of oral health and a high prevalence and severity of oral health impacts.

CONCLUSIONS

Participants experienced significant personal and social impacts due to their oral conditions. High levels of client satisfaction reflect the value of community-centred dental care for this group. An understanding of factors influencing satisfaction might be useful for similar services providing oral care to homeless and similarly disadvantaged groups.

Barriers and facilitators to dental care access among asylum seekers and refugees in highly developed countries: a systematic review

Background

Dental diseases are prevalent among asylum seekers and refugees (ASRs). Despite significant treatment needs, access to dental care in host countries is often limited. The aim of this systematic review was to identify the barriers and enablers to dental care access for ASRs in host countries of very high development.

Methods

Five health and social care databases and eight grey literature sources of information were searched. The Critical Appraisal Skills Programme tool was used to critically appraise included studies. Thematic analysis was undertaken to identify common themes. These were then deductively organised according to Penchansky and Thomas’s modified access model. All review stages were conducted by two independent reviewers.

Results

Nine papers were included in the review. ASRs encounter significant challenges to accessing dental care in their host countries. These include affordability, communication difficulties, insufficient interpretation, limited knowledge of the healthcare systems and healthcare rights, and negative encounters with healthcare teams. The views and experiences of dental care teams providing care to ASRs were explored in only one study.

Conclusions

Both population and healthcare characteristics influence access to dental care for ASRs. Affordability, awareness and accommodation are most frequently described as barriers to dental access for this population. The diverse needs of this population need to be recognised by policy makers, commissioners and practitioners alike. Cultural competence needs to be incorporated into dental services and any interventions to improve access to dental care for this population.

Registration

PROSPERO- International prospective register of systematic reviews (CRD42019145570).

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.

Barriers and facilitators perceived by women while homeless and pregnant in accessing antenatal and or postnatal healthcare: A qualitative evidence synthesis

Evidence indicates that homelessness is increasing within Europe and the United States (US), particularly for women. Pregnancy rates among homeless women are exceptionally high compared to their housed counterparts and homeless women engage poorly with antenatal care. The aim of this review is to explore the barriers and facilitators perceived by homeless women, while pregnant, or within six weeks postpartum in accessing antenatal and/or postnatal healthcare. A qualitative systematic review and synthesis was conducted. Key words and search terms were derived using the SPIDER (Sample, Phenomenon of Interest, Design, Evaluation, Research type) framework. Titles and abstracts were screened in accordance with inclusion and exclusion criteria. The methodological quality of included papers was assessed using criteria described by the Critical Appraisal Skills Programme (CASP) with data analysis using thematic synthesis. Two primary linked themes were generated: (a) lack of person-centred care; (b) complexity of survival. At an organisational level, a fragmented health service and accessibility to the health system were barriers, and resulted in poor person-centred care. At a clinical level, attitude & treatment from healthcare providers together with health knowledge all combined to illustrate poor person-centred care as barriers to homeless women accessing antenatal/postnatal healthcare. Sub-themes associated with complexity of survival included: disillusion with life, distrust of services, competing lifestyle demands and support and relationships. The findings of this review highlight that poor engagement may be partly explained by the complex interplay between both the healthcare system (person-centred care) and the individual (complexity of survival). Future services should be delivered in a way that recognises homeless people's complex and diverse needs, and should be reconfigured in order to try to meet them, through decreasing fragmentation of health services and staff training.

Strategies to improve oral health behaviours and dental access for people experiencing homelessness: a qualitative study

Objectives The present study aimed to identify strategies to improve oral health behaviours as well as access to and provision of dental care for people experiencing homelessness.Method We conducted focus groups with people living in a residential homeless centre and semi-structured interviews with other stakeholders working with or supporting people experiencing homelessness. Following an inductive approach, thematic analysis was used to synthesise the findings on NVivo software.Results Participants included 11 British males experiencing homelessness and 12 other stakeholders from various professional backgrounds. Themes identified included: awareness and empowerment; supportive environment and dental health system; flexible and holistic care; outreach and community engagement; collaboration with other health and social services; and effective communication.Conclusions Efforts to improve oral health among people experiencing homelessness via improved oral health habits and engagement with services need to be directed at both the recipients of care and the healthcare teams. Well-powered empirical studies are needed to evaluate whether the strategies identified can improve engagement and care provision for this population.

Evaluation of a community dental clinic providing care to people experiencing homelessness: A mixed methods approach

Background

People who experience homelessness have higher dental treatment needs compared to the general population. However, their utilization of dental services and levels of treatment completion are low. Peninsula Dental Social Enterprise, a not‐for‐profit organization in the United Kingdom, established a community dental clinic to improve access to dental care for this population.

Objectives

To evaluate the impact and acceptability of the community dental service for patients and examine the barriers and enablers to using and providing the service.

Methods

The evaluation included a retrospective assessment of anonymous patient data and thematic analysis of semi‐structured interviews with patients, support staff and service providers. The interviews were thematically analysed. A cost analysis of the dental service was also conducted.

Results

By 18 February 2020, 89 patients had attended the clinic. These included 62 males (70%) and 27 females (30%), aged 38.43 years on average (SD ± 11.07). Of these, 42 (47%) patients have completed their treatment, 23 (26%) are in active treatment and 24 (27%) left treatment. In total, 684 appointments (541.5 hours clinical time) were given. Of these, 82% (562) of appointments were attended (452.5 hours clinical time). The 22 interviews that were conducted identified flexibility, close collaboration with support services and health‐care team attitudes as key factors influencing service utilization and continuity of care.

Conclusions

This study provides details of a highly acceptable and accessible dental care model for people experiencing homelessness, with recommendations at research, practice and commissioning levels.

Differences in Utilization of Medical and Dental Services among Homeless People in South Korea

(1) Background: Homelessness contributes to both needs for care and barriers to access. This study aimed to explore the utilization of medical or dental services using Andersen's model for a vulnerable population of homeless in South Korea. (2) Methods: The data were applied from the first national survey for homeless people in South Korea, 2016. Totally 2032 persons participated in the interview survey. This study team requested the raw data through the public portal and analyzed them. (3) Results: The participants who were homeless for more than ten years, staying in small rooming house or shelter, non-employed, earning less than 500,000 won per month, and having a medical condition showed a significantly higher chance of using Medicaid. The use of outreach programs had a significant relationship with gender, duration of homelessness, and monthly income. Among dental patients, the homeless who did not consume alcohol, stayed in a shelter, and were employed had higher chances of using dental service. (4) Conclusions: Medicaid service was strongly related to enabling factors but outreach programs with predisposing factors. Dental service showed strong relationships with the enabling domain, but the pattern was opposite: the jobless had less chance to avail it. The policymakers need to consider these domains of service utilization to provide equitable access to healthcare services.