Evaluating economic outcomes in the management of temporomandibular disorders: a protocol for a systematic review of randomised controlled trials

Introduction Systematic reviews (SRs) on the management of temporomandibular disorders (TMDs) have predominantly focused on evaluating the effectiveness of various treatments, identifying those that provide the greatest benefits. However, the economic evaluation of these treatments has not been systematically explored. This SR aims to address this gap by evaluating the economic outcomes of the most common treatment modalities for TMDs, including cost-effectiveness, cost-utility, cost-benefit, cost-minimisation and the burden of illness.Methods and analysis This SR will be conducted using the following electronic databases Business Source Complete, CINAHL, EconLit (ProQuest), Embase (Ovid), MEDLINE (PubMed), MEDLINE (Ovid) and Scopus to identify studies evaluating the economic outcomes of treatments for TMDs. The eligibility criteria are as follows: (1) studies examining the costs and/or impact of treatments for TMDs and (2) articles published between 2000 and 2025. The primary outcomes of interest are the economic findings outlined earlier. Data extraction will include the following: author(s), year of publication, country, study objectives, study design, eligibility criteria, TMD diagnosis and screening, study groups, randomisation, blinding, sample size, number of participants invited, enrolled and completed, duration of treatment, follow-up, study duration, settings, assessment instruments, study outcomes, statistical analyses, results, limitations, strengths and funding sources. The quality of studies will be evaluated using the Consolidated Health Economic Evaluation Reporting Standards 2022 checklist, with risk of bias assessed using the Cochrane Effective Practice and Organization of Care’s risk-of-bias tool; where applicable, the Outcome Reporting Bias in Trials will be used to detect reporting biases. A narrative synthesis and summary tables will outline study characteristics, economic outcomes and the overall quality of evidence. We will conduct qualitative secondary and sensitivity analyses.Ethics and dissemination This SR does not require an ethics approval. The results will be disseminated through international and national conferences and peer-reviewed journals.PROSPERO registration number CRD42024613553.