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Stock or patient-specific TMJ replacement1054Table 1: Database search termsDatabase Search terms HitsPubMed Central (\Joint”[MeSH] OR “Temporomandibular Joint”[tiab] OR TMJ[tiab]) AND (“Prosthesis”[tiab] OR “Joint Prosthesis”[MeSH] OR “Joint Prosthesis”[tiab] OR “Total joint replacement”[tiab])657Web of Science (\prosthes*\511Cochrane (“Temporomandibular Joint” OR TMJ) AND (Prosthes* OR “joint prosthes*” OR “total joint replacement”) 16EMBASE (“Temporomandibular Joint” OR TMJ) AND (Prosthes* OR “joint prosthes*” OR “total joint replacement”)397For an article to be included, the patient sample had to consist of humans who received either unilateral or bilateral stock or custom(ized) TMJ TJR systems. Both pre-operative maximal mouth opening (MMO) and pain scores needed to be available, as well as those of at least 1 year postoperatively. These data had to be available at well-defined endpoints in time (e.g., 1, 2, and/or 3 years after surgery). If any information on diet was provided, these data were also included. There were no boundaries set for age or sex, and the minimal patient population was set to 5. Articles evaluating post-operative results of the Vitek-Kent prosthesis were not considered for inclusion, due to the negative long-term results following the use of incompatible materials.(2)Randomized controlled trials (RCTs), non-RCTs, comparative and prospective studies, retrospective studies, and case series were included. Case reports and expert opinions were excluded to maintain scientific soundness. Systematic reviews and meta-analyses concerning the use of a stock or patient-specific TJR were reviewed to identify possible eligible studies. Only articles written in English, Dutch, French, or German were included, and the full text had to be accessible.Study biasAll included studies were assessed for risk of bias. For non-RCTs and other observational studies, both prospective and retrospective, bias was assessed using the Methodological Index for Non-Randomized Studies (MINORS) scale, first introduced in 2003 by Slim et al.(10) The items were scored 0 if not reported; 1 when reported, but inadequately; Nikolas de Meurechy NW.indd 105 05-06-2024 10:14