INTERVAL (investigation of NICE technologies for enabling risk-variable-adjusted-length) dental recalls trial: a multicentre randomised controlled trial investigating the best dental recall interval for optimum, cost-effective maintenance of oral health in dentate adults attending dental primary care

Abstract

* Study protocol * Open Access * Open Peer Review INTERVAL (investigation of NICE technologies for enabling risk-variable-adjusted-length) dental recalls trial: a multicentre randomised controlled trial investigating the best dental recall interval for optimum, cost-effective maintenance of oral health in dentate adults attending dental primary care * Jan E. Clarkson1, * Nigel B. Pitts2, * Debbie Bonetti1, * Dwayne Boyers3, * Hazel Braid1, * Robert Elford4, * Patrick A. Fee1Email authorView ORCID ID profile, * Ruth Floate1, * Beatriz Goulão5, * Gerry Humphris6, * Ian Needleman7, * John D. T. Norrie8, * Fiona Ord1, * Marjon van der Pol3, * Craig R. Ramsay5, * David N. J. Ricketts1, * Helen V. Worthington9, * Linda Young1 and * INTERVAL Trial Collaboration BMC Oral Health2018 18:135 https://doi.org/10.1186/s12903-018-0587-2 © The Author(s). Inclusion criteria Adult patients (≥ 18 years of age) who: * Are dentate * Have visited their dentist in the previous two years * Receive their dental care as an NHS patient Exclusion criteria * Patients who have a medical condition indicating increased risk of bleeding * Immuno-compromised patients Outcome measures Primary outcomes Clinical * Gingival inflammation/bleeding on probing at the gingival margin Patient centred * Oral health-related quality of life (OHRQoL) Secondary outcomes Clinical * Dental caries * Periodontal pocket depth * Calculus * Preventive and interventive care Patient centred * Dental anxiety * Oral health related knowledge, attitudes, and behaviours * Use of and reason for use of dental services * Satisfaction with care Service-providers * Dentist attitude towards dental recall strategies Economic outcomes * NHS costs * Patient incurred costs * General population preferences, willingness to pay * Net benefits (Benefits – costs) * Generic Quality of Life, measured using the EQ-5D-3 L * Quality adjusted life years (QALYs) * Incremental cost per QALY gained There are two primary outcomes: the primary clinical outcome is periodontal disease as measured by gingival bleeding, and the primary patient centred outcome is oral health-related quality of life as measured by the Oral Health Impact Profile-14 (OHIP-14). [...]molar teeth will be excluded from clinical examination, except where a second molar tooth is absent and the third molar tooth has drifted mesially to occupy the position of the second molar. [...]molar teeth will be excluded from clinical examination, except where a second molar tooth is absent and the third molar tooth has drifted mesially to occupy the position of the second molar. Authors’ Affiliations (1) University of Dundee School of Dentistry, Dundee, UK (2) Dental Innovation and Translation Centre, King’s College London Dental Institute, London, UK (3) Health Economics Research Unit, University of Aberdeen, Aberdeen, UK (4) Patient Representative; Faculty of General Dental Practitioners, London, UK (5) Health Services Research Unit, University of Aberdeen, Aberdeen, UK (6) School of Medicine, University of St Andrews, St Andrews, UK (7) International Centre for Evidence-Based Oral Health, Unit of Periodontology, UCL Eastman Dental Institute, London, UK (8) University of Edinburgh, Edinburgh, UK (9) Division of Dentistry, School of Medical Sciences, University of Manchester, Manchester, UK Sheiham A. Is there a scientific basis for six-monthly dental examinations?