Evaluation of a Pilot Bridging Program to Enable Australian Dental Therapists to Treat Adult Patients

A comparison of dental therapy and dental students' clinical performance

The aim of the study was to determine if there is a difference between dental therapy students' clinical performance as compared to dental students at the University of Minnesota. An ex post facto research design was used to compare dental therapy students' and dental students' performance on selected clinical procedures. Dental students and dental therapy students from the graduating classes of 2016, 2017, and 2019 at the University of Minnesota comprised the study sample. Fisher's exact test was used to compare pass rates, and Wilcox rank sum test was used to compare performance scores. Dental therapy students' clinical performance on competency examinations and scores on daily clinical procedures showed no statistically significant difference when compared to dental student performance. There was no overall statistical difference in clinical performance between the three student cohorts. Dental therapy students performed equally as well as the dental students.

Dental therapists compared with general dental practitioners for undertaking check-ups in low-risk patients: pilot RCT with realist evaluation

Background

Many dental ‘check-ups’ in the NHS result in no further treatment. The patient is examined by a dentist and returned to the recall list for a further check-up, commonly in 6 or 12 months’ time. As the oral health of regular dental attenders continues to improve, it is likely that an increasing number of these patients will be low risk and will require only a simple check-up in the future, with no further treatment. This care could be delivered by dental therapists. In 2013, the body responsible for regulating the dental profession, the General Dental Council, ruled that dental therapists could see patients directly and undertake check-ups and routine dental treatments (e.g. fillings). Using dental therapists to undertake check-ups on low-risk patients could help free resources to meet the future challenges for NHS dentistry.

Objectives

The objectives were to determine the most appropriate design for a definitive study, the most appropriate primary outcome measure and recruitment and retention rates, and the non-inferiority margin. We also undertook a realist-informed process evaluation and rehearsed the health economic data collection tool and analysis.

Design

A pilot randomised controlled trial over a 15-month period, with a realist-informed process evaluation. In parallel, we rehearsed the health economic evaluation and explored patients’ preferences to inform a preference elicitation exercise for a definitive study.

Setting

The setting was NHS dental practices in North West England.

Participants

A total of 217 low-risk patients in eight high-street dental practices participated.

Interventions

The current practice of using dentists to provide NHS dental check-ups (treatment as usual; the control arm) was compared with using dental therapists to provide NHS dental check-ups (the intervention arm).

Main outcome measure

The main outcome measure was difference in the proportion of sites with bleeding on probing among low-risk patients. We also recorded the number of ‘cross-over’ referrals between dentists and dental therapists.

Results

No differences were found in the health status of patients over the 15 months of the pilot trial, suggesting that non-inferiority is the most appropriate design. However, bleeding on probing suffered from ‘floor effects’ among low-risk patients, and recruitment rates were moderately low (39.7%), which suggests that an experimental design might not be the most appropriate. The theory areas that emerged from the realist-informed process evaluation were contractual, regulatory, institutional logistics, patients’ experience and logistics. The economic evaluation was rehearsed and estimates of cost-effectiveness made; potential attributes and levels that can form the basis of preference elicitation work in a definitive study were determined.

Limitations

The pilot was conducted over a 15-month period only, and bleeding on probing appeared to have floor effects. The number of participating dental practices was a limitation and the recruitment rate was moderate.

Conclusions

Non-inferiority, floor effects and moderate recruitment rates suggest that a randomised controlled trial might not be the best evaluative design for a definitive study in this population. The process evaluation identified multiple barriers to the use of dental therapists in ‘high-street’ practices and added real value.

Future work

Quasi-experimental designs may offer more promise for a definitive study alongside further realist evaluation.

Trial registration

Current Controlled Trials ISRCTN70032696.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 9, No. 3. See the NIHR Journals Library website for further project information.

The dental workforce in Malaysia: drivers for change from the perspectives of key stakeholders

OBJECTIVE

The dental workforce is facing unprecedented change globally as a result of multiple influences. There is a need for research informed action to map possible drivers for change at the national level and examine their potential implications in order to shape the dental workforce to serve population needs. The objective of this study was to explore key stakeholders' views on the drivers for change for the Malaysian dental workforce and their potential implications.

METHOD

Stakeholders from key dental organisations/professions in Malaysia were purposively sampled and invited to participate in a semi-structured interview (n = 20) using a pre-tested topic guide. Interviews were recorded, transcribed verbatim and analysed using Framework Analysis.

RESULTS

Drivers for workforce were identified across four main domains: policy-politics; trends in demography; social and economic; and, technology-scientific development. The pace of change and possible interplay between drivers, most notably government policy, liberalisation of education and health services and challenges of workforce governance, followed by Malaysian demography and health trends. Implications for the future, including possible uncertainties, particularly in relation to specialisation and privatisation were identified, together in balancing and meeting public health needs/demands with professional career expectations.

CONCLUSION

Stakeholders' views on the high-level drivers for change broadly mirror those of high-income countries; however, specific challenges for Malaysia relate to rapid expansion of dental education and a young workforce with significant career aspirations, together with imbalances in the health care system. The impact of these drivers was perceived as leading to greatest uncertainty around specialisation and privatisation of the future workforce.

Perceptions and practices of general practitioners on providing oral health care to people with diabetes - a qualitative study

Background

Poorly controlled diabetes leads to multiple complications including oral health problems. General practitioners (GPs) are at the forefront of management of chronic diseases in primary health care. Diabetes guidelines encourage a proactive role for GPs in oral health complications management in people with diabetes, yet little is known about this area of care. This study aimed to explore current practices, perceptions and barriers of GPs towards oral health care for people with diabetes.

Methods

We employed a qualitative research method utilising telephone interviews. Purposive and snowball sampling were used to recruit 12 GPs from Greater Sydney region. A thematic analysis involving an inductive approach was used to identify and analyse contextual patterns and themes.

Results

A majority of participants were males (n = 10), working in group practices (n = 11) with a mean ± SD age of 55 ± 11.4 years and 25 ± 13.6 years work experience. Three major themes emerged: oral health care practices in general practice settings; barriers and enablers to oral health care; and role of diabetes care providers in promoting oral health.

Most GPs acknowledged the importance of oral health care for people with diabetes, identifying their compromised immune capacity and greater risks of infections as risk factors. GPs reported 20–30% of their patients having oral health problems, however their current oral health care practices relating to education, risk assessment and referrals were reported as very limited.

GPs identified several barriers including time constraints, absence of referral pathways, and limited knowledge and training in promoting oral health care. They also reported patient barriers including oral health care costs and lower oral health awareness. GPs perceived that resources such as education/training, a standardised assessment tool and patient education materials could support them in promoting oral health care. GPs also perceived that other diabetes care providers such as diabetes educators could play an important role in promoting oral health.

Conclusions

Despite current recommendations, GPs’ current oral health care practices among people with diabetes are limited. Further strategies including capacity building GPs by developing appropriate oral health training programs and simple risk assessment tools along with accessible referral pathways are needed to address the current barriers.

Variations in Australian dental therapy practice by practitioner and workplace characteristics

INTRODUCTION

Understanding dental therapy practice across clinical settings is useful for education and service planning. This study assessed if dental therapy service provision varied according to practitioner and workplace characteristics.

METHODS

Members of professional associations representing dental therapists (DT) and oral health therapists (OHT) were posted a self-complete survey collecting practitioner and workplace characteristics, together with clinical activity on a self-selected typical day of practice. Differences in service provision according to characteristics were assessed by comparing mean services per patient visit. Negative binomial regression models estimated adjusted ratios (R) of mean services per patient.

RESULTS

The response rate was 60.6%. Of practitioners registered as an OHT or a DT, 80.0% (n = 500) were employed in general clinical practice. Nearly one-third of OHT and nearly two-thirds of DT worked in public sector dental services. Patterns of service provision varied significantly according to practice sector and other characteristics. After adjusting for characteristics, relative to private sector, public sector practitioners had higher provision rates of fissure sealants (R = 3.79, 95% confidence interval [95% CI]: 2.84-5.06), restorations (R = 3.78, 95% CI: 2.94-4.86) and deciduous tooth extractions (R = 3.58, 95% CI: 2.60-4.93) per patient visit, and lower provision rates of oral health instruction (R = 0.86, 95% CI: 0.76-0.98), fluoride applications (R = 0.43, 95% CI: 0.33-0.56), scale and cleans (R = 0.39, 95% CI: 0.34-0.45) and periodontal services (R = 0.20, 95% CI: 0.14-0.28) per patient visit.

CONCLUSION

Differences in service provision according to sector indicate that OHT and DT adapt to differing patient groups and models of care. Variations may also indicate that barriers to utilising the full scope of practice exist in some settings.

Evaluation of a changed model of care delivery in a Canadian province using outcome mapping

BACKGROUND

Collaboration between the Nova Scotia Department of Health and Wellness, the province's District Health Authorities (DHAs) and the Izaak Walton Killam (IWK) Health Center led to the development and implementation of a new collaborative model of patient-centered care delivery in the province.

OBJECTIVE

The objective was to determine the effectiveness of the initiative in arriving at the envisioned care model by investigating its impacts (if any) on patient, system, and providers outcomes.

METHODS

A repeated surveys study design with mixed methods in an outcome mapping framework was used to measure process and outcome indicators for patients and families, providers, and the system.

RESULTS

Almost all outcomes at the patient and family, provider, and system level improved following the implementation of the model, and these effects were stronger on units where the model was more fully implemented.

CONCLUSIONS

The efforts of the province, DHAs and IWK to improve patient care through the new care model have been successful. This evaluation is unique in the broad range of indicators it incorporates. Comprehensive monitoring and evaluation of health system changes is critical to system effectiveness.