The article presents the Polish version of the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD), detailing the process of document translation and cultural adaptation. Temporomandibular disorders (TMDs) are a group of conditions affecting the masticatory system, characterized by pain, limited jaw movements, and TMJ sounds. The first evidence-based diagnostic method, the Research Diagnostic Criteria for TMDs (RDC/TMD), was developed in 1992 and has been widely adopted. The RDC/TMD consists of two axes: Axis I for physical diagnosis and Axis II for assessing behavioral and functional status. The DC/TMD, which replaced the RDC/TMD, is the current reference standard for diagnosing TMDs in clinical and research settings. The Polish translation of the DC/TMD was conducted following rigorous guidelines to ensure cultural equivalency and validity. The process involved forward and backward translation by independent translators, review by an expert committee, and final approval by the INFORM website. The Polish DC/TMD includes Axis I and Axis II instruments, diagnostic algorithms, and scoring manuals. The article aims to introduce these operationalized tools for reliable and valid clinical examination and psychosocial assessment of patients with TMDs, emphasizing the importance of the biopsychosocial model in TMD management.The article presents the Polish version of the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD), detailing the process of document translation and cultural adaptation. Temporomandibular disorders (TMDs) are a group of conditions affecting the masticatory system, characterized by pain, limited jaw movements, and TMJ sounds. The first evidence-based diagnostic method, the Research Diagnostic Criteria for TMDs (RDC/TMD), was developed in 1992 and has been widely adopted. The RDC/TMD consists of two axes: Axis I for physical diagnosis and Axis II for assessing behavioral and functional status. The DC/TMD, which replaced the RDC/TMD, is the current reference standard for diagnosing TMDs in clinical and research settings. The Polish translation of the DC/TMD was conducted following rigorous guidelines to ensure cultural equivalency and validity. The process involved forward and backward translation by independent translators, review by an expert committee, and final approval by the INFORM website. The Polish DC/TMD includes Axis I and Axis II instruments, diagnostic algorithms, and scoring manuals. The article aims to introduce these operationalized tools for reliable and valid clinical examination and psychosocial assessment of patients with TMDs, emphasizing the importance of the biopsychosocial model in TMD management.