Some text is provided below. Given the text, extract up to 20 knowledge triplets in the form of (subject, predicate, object). Try to find subjects or objects which are a medical diagnoses, symptoms, body parts, procedures, drugs or other relevant entities. Avoid stopwords.
    Example:
    "Text: Juvenile idiopathic arthritis is a term used to include all chronic childhood arthritis of unknown \netiology. It is characterized by chronic inflammation persisting for at least 6 weeks, beginning \nbefore 16 years of age. The characteristics present are chronic synovitis, arthralgia, impaired \njoint mobility in at least one joint, and erosion with destruction of cartilage and subchondral \nbone, that could be associated or not with systemic involvement, according to each subtype of \nthe disease."
    Triplets:
    (Juvenile idiopathic arthritis, is, chronic childhood arthritis)
    (Juvenile idiopathic arthritis, characterized by, chronic inflammation)
    (Juvenile idiopathic arthritis, characterized by, impaired joint mobility)
    Text: Although the pathogenesis of SC is poorly understood, the \nchondrocytes in loose bodies are thought to arise from the primitive \nmesenchymal cells in synovium. 1, 2, 9 The trigger mechanisms of \nmetaplasia are largely unknown, but trauma and inflammation have been \nmentioned as possible causes. 1 As long as synovial membrane exists and \nreceives some pressure, SC can develop even in the inferior compartment \nof the TMJ. We think it is natural that SC of the TMJ affects also the \nsynovial lining of the inferior compartment.\n
    Triplets:
    (SC pathogenesis, is, poorly understood)
    (chondrocytes, arise from, primitive mesenchymal cells)
    “(trigger, is possibly, trauma)
    
    Text: CASE REPORT\nOpen Access\nClinical-surgical treatment of temporomandibular\njoint disorder in a psoriatic arthritis patient\nEdela NAME_1*, NAME_2, NAME_3 and NAME_4\nAbstract\nIntroduction: Condylotomy is a surgical procedure that has been used as an option to treat temporomandibular\ndisorder (TMD) patients. This technique has the advantage of avoiding intra-capsular alterations that might be\nfound involving other surgical procedures. Its use, even when unilateral, has positive effect on treatment of both\njoints.\nMethods: In order to better evaluate the benefits of a clinical-surgical treatment for TMD, the present report\ndescribes the case of a psoriatic arthritis patient. The case was clinically characterized by dental malloclus