Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial

Trial Overview

Traditionally dentists encourage the practice of recommending 6 monthly dental check-ups. There is, however, little information to either support or refute this practice, or to advise either patients or dentists of the best dental recall interval for the maintenance of oral health for adults. The NIHR HTA funded INTERVAL Trial is being led by the University of Dundee and aims to add to the existing evidence base. The Trial is run in collaboration with other universities including the Universities of Aberdeen, St Andrews, Glasgow, Edinburgh, Birmingham, Cardiff, Manchester, Leeds, King’s College, UCL Eastman Dental Institute and NHS Education Scotland.

The Trial is also supported by other organisations involved in primary care research and local research networks all over the UK.

The results of this Trial will provide much needed evidence on the best time interval between dental check-ups in order to improve and maintain adult oral health in the most cost effective way.

Aims and Objectives

The aim of this study is to evaluate the effectiveness and cost effectiveness of three dental recall strategies by assessing their impact on maintaining adult oral health. The comparisons are:-

  • 6 month recall interval
  • Risk based recall interval based on the patient's risk of dental disease
  • 24 month recall interval

Trial Design

The research will be carried out in 53 general dental practices across the UK operating in a wide range of different circumstances and in fluoridated or non-fluoridated areas. A total of 2288 participants will be recruited to the Trial and randomised to one of the three comparison arms. The 24 month recall arm has been included and participants are potentially randomised to this arm only when considered suitable by their dentist. This has resulted in the use of two strata as shown in the diagram below.

Outcome Measures

The primary outcome is measurement of disease (periodontal and caries) assessed at four years by blinded assessors.

Secondary outcomes - patient quality of life, attitudes, knowledge and behaviour; service provider attitudes and costs are measured using questionnaires at baseline and annually during the four years of follow up.

Recruitment

The map identifies the areas where participant recruitment is taking place in dental practices across the UK.

Dissemination

The results of the Trial will be published as widely as possible in academic and professional dental journals as well as the popular press as an aide to decision making by policy makers, dental practitioners and patients.  

Presentations

Date: 26 June 2013
Presenter Name: Professor Nigel Pitts
Presentation Title: ‘INTERVAL Dental Recalls Trial'
Meeting Presentation Delivered at: BDA Headquarters, London
Meeting Title:  ‘Improve Your Practice by Doing Research’
Talk/Poster/Course/Other:  Talk
Audience – Open meeting/specific group/by invitation:  General Dental Practitioners

Date:  16.05.2012
Presenters:  Professor Jan Clarkson and Dr Kulsam Ali
Title:  Dental Clinical Trials Event:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Glasgow Dentists
Venue:  IET Glasgow Teacher Building

 

Date:  28.03.2012
Presenters:  Professor Jan Clarkson and Dr Kulsam Ali
Title:  Dental Clinical Trials Event:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Edinburgh Dentists
Venue:  British Medical Association, Edinburgh

 

Date:  06.03.2012
Presenters:  Professor Jan Clarkson and Dr Kulsam Ali
Title:  Dental Clinical Trials Event:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Edinburgh Dentists
Venue:  IET Glasgow Teacher Building, Glasgow

 

Date:  22.02.2012
Presenters:  Professor Jan Clarkson and Dr Kulsam Ali
Title:  Dental Clinical Trials Event:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Dundee Dentists
Venue:  Dundee Dental Education Centre

 

Date:  21.02.2012
Presenters:  Professor Jan Clarkson and Dr Kulsam Ali
Title:  Dental Clinical Trials Event:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Aberdeen Dentists
Venue:  Aberdeen Dental Education Centre

 

Date:  15.11.2011
Presenter:  Dr Kulsam Ali
Title:  NIHR HTA INTERVAL: Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial
Meeting:  Primary Care Research Network Meeting Study Showcase Meeting
Venue:  Manchester

 

Date:  09.11.2011
Presenter:  Professor Jan Clarkson
Title:  NIHR HTA INTERVAL: Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial
Meeting:  Scottish Dental Practice Based Research Network Conference
Venue:  West Park Conference Centre, Dundee

 

Date:  04.08.2011
Presenter:  Dr Fergus Daly
Title:  NIHR HTA INTERVAL
Meeting:  Briefing to UK Research Network Staff
Venue:  Mackenzie Building, Dundee

 

Date:  15.06.2010
Presenter:  Dr Fergus Daly
Title:  INTERVAL Trial Manager’s Report
INTERVAL Trial Management Committee Meeting
Venue:  Edinburgh Postgraduate Dental Institute

 

Date:  15.06.2010Presenters:  Professors Nigel Pitts and Jan Clarkson
Title:  INTERVAL Trial PIs’ Review of the Year
Meeting:  INTERVAL Trial Management Committee Meeting
Venue:  Edinburgh Postgraduate Dental Institute

 

Date:  10.05.2010
Presenter:  Professor Jan Clarkson and Dr Fergus Daly
Title:  INTERVAL Dental Recalls Trial:  Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial
Meeting:  Introductory Briefing to Birmingham Dentists
Venue:  Birmingham Dental School

 

Date:  24.03.2010
Presenters:  Professor Jan Clarkson and Dr Fergus Daly
Title:  INTERVAL Dental Recalls Trial
Meeting:  Introductory Briefing to Cardiff Dentists
Venue:  Edinburgh Postgraduate Dental Institute

 

Date:  25.11.2009
Presenters:  Professor Jan Clarkson and Dr Fergus Daly
Title:  INTERVAL Dental Recalls Trial:  Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial
Meeting:  Lunchtime Research Seminar
Venue:  Mackenzie Building, Dundee

 

Date:  16.11.2009
Presenters:  Professors Nigel Pitts and Jan Clarkson
Title:  INTERVAL Dental Recalls Trial:  Investigation of NICE Technologies for Enabling Risk-Variable-Adjusted-Length Dental Recalls Trial
Meeting:  Lunchtime Research Seminar
Venue:  Health Services Research Unit, Aberdeen

 

Date:  08.06.2009
Presenters:  Professors Nigel Pitts and Jan Clarkson
Title:  INTERVAL Dental Recalls Trial
Meeting:  INTERVAL Trial Management Committee Meeting
Venue:  Edinburgh Postgraduate Dental Institute

 

Date:  29.04.2009
Presenters:  Professor Nigel Pitts
Title:  INTERVAL Dental Recalls Trial
Meeting:  HTA Monitoring Committee Meeting
Venue:  Southampton

 

Other Information Sources

Further information about this Trial is available at https://w3.abdn.ac.uk/hsru/interval/

Joint Chief Investigators

NIHR Disclaimer

This project was funded by the National Institute for Health Research Health Technology Assessment (NIHR HTA) Programme (project number 06/35/99) and will be published in full in Health Technology Assessment.  The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the HTA programme, NIHR, NHS or the Department of Health.

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Collaborators and Partners