Economic Evaluations of Preventive Interventions for Dental Caries and Periodontitis: A Systematic Review

Tan Minh Nguyen (), Utsana Tonmukayakul, Long Khanh-Dao Le, Hanny Calache and Cathrine Mihalopoulos
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Tan Minh Nguyen: Institute of Health Transformation, Deakin University
Utsana Tonmukayakul: Institute of Health Transformation, Deakin University
Long Khanh-Dao Le: Monash University
Hanny Calache: Institute of Health Transformation, Deakin University
Cathrine Mihalopoulos: Monash University

Applied Health Economics and Health Policy, 2023, vol. 21, issue 1, No 7, 53-70

Abstract: Abstract Objectives To critically examine the methods used for full economic evaluations of preventive interventions for dental caries and periodontitis. Methods Published literature post-2000 was searched to April 2021. Based on a developed intervention classification framework for dental caries and periodontitis, only universal, selective or indicated interventions were included in this review. The Drummond 10-point checklist was used for quality appraisal. Results Of 3,007 unique records screened for relevance, 73 studies were reviewed. Most model-based studies (61/73) used cost-effectiveness analysis (49%) or cost-benefit analysis (28%). Trial-based studies (16/73) commonly used cost-effectiveness analysis (59%). Four studies used both economic evaluation methods. Sixty-four papers (88%) were on dental caries, eight papers (11%) focused on periodontitis, and one paper (1%) included both oral diseases; 72% of model-based and 82% of trial-based studies were of good quality. The most frequently investigated dental caries preventive interventions were water fluoridation (universal intervention; cost-saving or cost-effective), fissure sealant and fluoride varnish (selective and indicated interventions; cost-effectiveness outcomes were inconsistent). Supportive periodontal therapy with oral health education (indicated intervention; cost-effective) was the most frequently evaluated preventive intervention for periodontitis. Thirty percent of studies with a time horizon > 1 year did not apply an appropriate discount rate and 26% did not comprehensively discuss other important considerations beyond the technical analysis. Conclusions Generic health outcome measures should be incorporated for economic evaluations on preventive interventions for dental caries and periodontitis, and an increased focus to prevent periodontitis using economic evaluation methods is needed to inform resource allocation and policy decision-making.

Date: 2023
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DOI: 10.1007/s40258-022-00758-5

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