Clinical features of chronic primary pain in individuals presenting painful temporomandibular disorder and comorbidities.

Background: The diagnosis of chronic primary pain (CPP), according to the recently released International Classification of Disease (ICD-11) criteria, refers to conditions with complex aetiologies. CPP is characterized by specific clinical features such as generalized sensory hypersensitivity and widespread pain, and is associated with functional disability and emotional distress.

Objective: This study investigated clinical features of CPP in individuals with painful temporomandibular disorders (TMD) and comorbidities (fibromyalgia, migraine and/or tension-type headache).

Subjective sleep complaints were associated with painful temporomandibular disorders in adolescents: The Epidor-Adolescere study.

Background: Sleep disturbances in adolescents has received a lot of attention in the literature and it is recognised as a serious health concern. The association between pain and sleep disturbances in adolescents has been extensively studied. However, to the best of our knowledge, there is a lack of studies investigating the association between various subjective sleep variables and painful TMD in adolescents.

Lack of correlation between central sensitization inventory and psychophysical measures of central sensitization in individuals with painful temporomandibular disorder.

Objective: To assess the correlation between the Central Sensitization Inventory (CSI) scores and the results of psychophysical tests and psychosocial questionnaires according to the presence of painful temporomandibular disorder (TMD).

Design: It was a cross-sectional study involving 146 participants, aged 20-65 years. Painful TMD was classified using the Research Diagnostic Criteria for Temporomandibular Disorders.

Temporomandibular disorder, body pain and systemic diseases: assessing their associations in adolescents.

Unlabelled: Painful temporomandibular disorders (TMD) in children and adolescents may impact negatively the individual´s life. The presence of comorbidities associated with TMD tends to increase the persistence of pain and to facilitate its chronification.

Objective: To investigate the presence of other painful conditions and systemic diseases and their association with painful TMD.

Widespread Pain and Central Sensitization in Adolescents with Signs of Painful Temporomandibular Disorders.

Aims: To investigate the associations between signs of painful temporomandibular disorders (TMD) and number of tender points (TPs) and fibromyalgia in adolescents, as well as the relationship between TPs and pressure-pain threshold (PPT) in individuals presenting with local, regional, or widespread pain as a way to investigate the presence of central sensitization (CS).

Methods: The sample consisted of 690 Brazilian adolescents with and without signs of painful TMD, aged 12 to 14 years old. Painful TMD was classified according to the Research Diagnostic Criteria for TMD (RDC/TMD) Axis I.

Obesity, sedentarism and TMD-pain in adolescents.

Background: Obesity is a chronic and prevalent disorder, affecting individuals of all age. Previous evidence suggests that it is associated with some types of chronic pain, especially musculoskeletal pain. In addition, sedentarism is also associated with an increase of the inflammatory factors and chronic pain.

Systemic diseases and other painful conditions in patients with temporomandibular disorders and migraine.

Unlabelled: Temporomandibular disorders (TMD) are a highly prevalent, painful musculoskeletal condition affecting the masticatory system, and are frequently associated with migraines (M) and other diseases. This study aimed to investigate the association between painful TMD and M with other painful conditions and systemic diseases, such as cervicalgia, body pain (BP), ear-nose-throat disorders, musculoskeletal disorders, diabetes, cardiopulmonary diseases and gastritis/peptic ulcer.

Methods: This was a cross-sectional study conducted in a sample of 352 individuals.