Evaluation of personal dental services (PDS) first wave pilots: the alternative to general dental services (GDS) offered by the capitation-based pilots

The INCENTIVE study: a mixed-methods evaluation of an innovation in commissioning and delivery of primary dental care compared with traditional dental contracting

Background

Over the past decade, commissioning of primary care dentistry has seen contract currency evolving from payment for units of dental activity (UDAs) towards blended contracts that include key performance indicators such as access, quality and improved health outcome.

Objectives

The aim of this study was to evaluate a blended/incentive-driven model of dental service provision. To (1) explore stakeholder perspectives of the new service delivery model; (2) assess the effectiveness of the new service delivery model in reducing the risk of and amount of dental disease and enhancing oral health-related quality of life (OHQoL) in patients; and (3) assess cost-effectiveness of the new service delivery model.

Methods

Using a mixed-methods approach, the study included three dental practices working under the blended/incentive-driven (incentive) contract and three working under the UDAs (traditional) contract. All were based in West Yorkshire. The qualitative study reports on the meaning of key aspects of the model for three stakeholder groups [lay people (patients and individuals without a dentist), commissioners and the primary care dental teams], with framework analysis of focus group and semistructured interview data. A non-randomised study compared clinical effectiveness and cost-effectiveness of treatment under the two contracts. The primary outcome was gingivitis, measured using bleeding on probing. Secondary outcomes included OHQoL and cost-effectiveness.

Results

Participants in the qualitative study associated the incentive contract with more access, greater use of skill mix and improved health outcomes. In the quantitative analyses, of 550 participants recruited, 291 attended baseline and follow-up. Given missing data and following quality assurance, 188 were included in the bleeding on probing analysis, 187 in the caries assessment and 210 in the economic analysis. The results were mixed. The primary outcome favoured the incentive practices, whereas the assessment of caries favoured the traditional practices. Incentive practices attracted a higher cost for the service commissioner, but were financially attractive for the dental provider at the practice level. Differences in generic health-related quality of life were negligible. Positive changes over time in OHQoL in both groups were statistically significant.

Limitations

The results of the quantitative analysis should be treated with caution given small sample numbers, reservations about the validity of pooling, differential dropout results and data quality issues.

Conclusions

A large proportion of people in this study who had access to a dentist did not follow up on oral care. These individuals are more likely to be younger males and have poorer oral health. Although access to dental services was increased, this did not appear to facilitate continued use of services.

Future work

Further research is required to understand how best to promote and encourage appropriate dental service attendance, especially among those with a high level of need, to avoid increasing health inequalities, and to assess the financial impact of the contract. For dental practitioners, there are challenges around perceptions about preventative dentistry and use of the risk assessments and care pathways. Changes in skill mix pose further challenges.

Funding

The National Institute for Health Research Health Services and Delivery Research programme.

Design of an innovative paediatric capitation payment approach for public sector dentistry: an Australian experience

AIM

The aim of this study was to trial the methodology and administration processes of a public paediatric capitation programme provided in the period 1 July 2011 to 31 December 2011 through a Bachelor of Oral Health programme in rural New South Wales (NSW), Australia, where access to public dental services is limited.

BASIC RESEARCH DESIGN

The principal structure of the programme was the development of three diagnostic pathways: active caries and pain (Pathway A); active caries and no pain (Pathway B); and no active caries and no pain (Pathway C). In 2011, de-identified treatment data for NSW public dental services' patients under 18 years of age were analysed to identify the top 10 dental treatment items. These items were clustered according to the mean decayed and/or filled surface of patients under 18 years of age who had decayed, filled or missing teeth. Each treatment item was allocated 60% of the 2011 Australian Government Department of Veteran Affairs Schedule of Fees.

CLINICAL SETTING

The programme was trialled in Charles Sturt University dental facility in Wagga Wagga, NSW.

PARTICIPANTS

The programme targeted patients in the following age groups: 0-5 years; 6-11 years; and 12-17 years.

RESULT

The 6-month trial provided 361 patients with a capitation pathway, at a total cost of $47,567.90, averaging $131.76 per capitation pathway. The total number of items provided (n=2,070) equated to an average of 5.7 items per capitation diagnostic pathway.

CONCLUSION

This model offered an early entry point for paediatric patients to access dental care that addressed their needs, whilst being flexible enough to be fiscally attractive.

Managing resources in NHS dentistry: the views of decision-makers in primary care organisations

OBJECTIVE

To investigate priority setting and decision-making in primary care organisations and to determine how resources are managed in order to meet the oral health needs of local populations.

METHOD

This is a qualitative study. The purposive sample comprised twelve dental public health consultants and six senior finance representatives from contrasting care systems across the United Kingdom. Participants completed a written information sheet followed by a recorded semi-structured telephone interview. Conversations were professionally transcribed verbatim and analysed independently by two investigators using the constant comparative method.

RESULTS

The emergent themes focused upon: the role of participants in decision-making; professional relationships; managing change; information needs; and identifying and managing priorities. There was wide interpretation with respect to participants' roles and perceived information needs for decision-making and commissioning. A unifying factor was the importance placed by participants upon trust and the influence of individuals on the success of relationships forged between primary care organisations and general dental practitioners.

CONCLUSION

To facilitate decision-making in primary care organisations, commissioners and managers could engage further with practitioners and incorporate them into commissioning and resource allocation processes. Greater clarity is required regarding the role of dental public health consultants within primary care organisations and commissioning decisions.

A qualitative analysis of the planning, implementation and management of a PDS scheme: lessons for local commissioning of dental services

AIM

To identify the experiences of primary care trust employees, the dental teams and other key individuals of the planning, implementation and management of a Personal Dental Services scheme.

METHOD

A thematic analysis of a series of qualitative interviews with 29 individuals who were involved in the planning, implementation and management of a PDS scheme in South East London.

FINDINGS

Nine key themes were analysed from the data. For each theme perspectives could be identified for both the employees of the primary care trusts and the dental team. These perspectives differ in key respects.

CONCLUSIONS

Practitioners value the PDS scheme and consider it a positive experience. They suggest that it has led to an increase in quality of care, and a more professional management approach to the practice. The practice team felt that they have benefited from an enhanced working environment. The main concern expressed was that patient registrations were not being accurately assessed. Those involved in the management of the PDS scheme, while endorsing local commissioning arrangements, were concerned that it was not known whether PDS was meeting local needs. There was little quality benchmarking, which would have allowed robust measure of success. The contract model and outcomes should have been more sensitively designed. There was concern expressed that the small number of practices who participated in the pilot scheme prohibits the possibility of thoroughly analysing the impact of local commissioning. Future local commissioning should identify mechanisms for ensuring the effective planning, management and evaluation of the impact of the schemes. A core element of this will be the specification of appropriate goals for commissioning.

Evaluation of the personal dental services (wave 1) for Lambeth, Southwark and Lewisham primary care trusts--Part 2: Retrospective analyses of treatment and other dental record data

AIM/OBJECTIVE

The purpose of the study was to undertake analyses of treatment data for the Personal Dental Services (PDS) of Lambeth, Southwark and Lewisham Primary Care Trusts and relate the analyses to the PDS goals of supporting practitioners deliver appropriate quality dental care and ensuring that appropriate quality safety net services are available for all residents.

METHOD

Analyses of treatment data provided by the Dental Practice Board were undertaken for the post-PDS period (February 1999-March 2003, based on data availability). Analyses of the clinic notes for 1500 patients were also undertaken for the 1 year pre-PDS period (October 1997-September 1998) and post-introduction of the PDS (October 1998-June 2003). Two sets of analyses were undertaken to evaluate trends in treatment claims for the Dental Practice Board data, absolute numbers of each type of treatment claimed each month and change in numbers of types of treatments claimed over time. The clinic notes were used to undertake post-PDS, pre-PDS comparisons of the number of treatment items and grouped treatment item categories undertaken and the number of courses and percentages of private treatment items provided. The following sociodemographic characteristics of the patients were also analysed, age, gender, exemption status and attendance status.

RESULTS

Overall it was identified that the percentage reduction in the number of treatment items undertaken was 13% (95% CI -19%, -7%), post- as compared to the pre-PDS introduction period. On an annual basis it was identified that the percentage reduction in the number of treatment items undertaken per year per patient post-PDS was 4% (95% CI -6%, -2%). There were significant variations in the impact of the PDS on the number of treatment items undertaken for different types of patients. A limited number of treatment types changed significantly post- as compared to pre-PDS. The proportion of exempt patients treated did not increase post-PDS.

CONCLUSIONS

It is possible that a less invasive style of dental treatment was provided during the course of the PDS, however, there was only limited evidence to indicate that dentists practice style changed based on types of treatment categories provided. The PDS provided a limited safety net service for local residents. In setting program goals the nature of quality dental practice requires definition and evaluation should be undertaken on a prospective basis.

Are We Ready to Move from Operative to Non-Operative/Preventive Treatment of Dental Caries in Clinical Practice?

This review focuses on the clinical interactions between patients and the dental team, not on caries prevention at a public health level. Many dentists no longer take a narrow surgical view seeking to apply interventive treatment as a one-off event at a certain trigger point of disease severity and the evidence that caries is an initially reversible, chronic disease with a known multi-factorial aetiology is being appreciated more widely. The caries process should be managed over time in an individualized way for each patient. Very few individuals can be considered to be truly 'caries free' when initial lesions as well as more advanced dentine lesions are considered. It is now very clear that, by itself, restorative treatment of the disease does not 'cure' caries. The caries process needs to be managed, in partnership with patients, over the changing challenges of a lifetime. The answer to the question posed in the title should be, in many cases, that we are ready to move to non-operative/preventive care (if we have not done so already). However, this should be for appropriate stages of lesion extent and in patients who respond to advice on recall frequency and preventive behaviours.