Importance of differential diagnosis of EBV mucocutaneous ulcer and EBV-positive diffuse large B-cell lymphoma: A case report.

Rationale: Epstein-Barr virus mucocutaneous ulcers (EBVMCUs) were officially recognized as a clinicopathologic entity in the 2017 revision of the World Health Organization classification, which often occurs in the elderly or in immunosuppressive condition presented as an isolated ulcerative lesion. EBVMCUs are defined as "shallow, sharply circumscribed, mucosal or cutaneous ulcers with underlying polymorphous infiltration." It mostly involves oral mucosa, but some appear in skin or gastrointestinal tract.

The association between autoantibody types and salivary gland hypofunction in patients with primary Sjögren's syndrome.

Background: This study analyzed the association between autoantibody types and salivary gland hypofunction in patients with primary Sjögren's syndrome (pSS).

Methods: A retrospective analysis was performed on patients who visited the Department of Orofacial Pain and Oral Medicine at Yonsei University Dental Hospital from January 1, 2010 to May 31, 2021, and who were diagnosed with pSS. Out of 191 patients who fulfilled the 2016 American College of Rheumatology/European League Against Rheumatism classification criteria, 50 were positive for both anti-Ro/SSA and anti-La/SSB, whereas 97 had anti-Ro/SSA but not anti-La/SSB antibodies.

Effect of passive jaw opening on the electromyographic activity of the temporalis, masseter, digastric, and infrahyoid muscles in healthy adults.

Objective: To investigate the surface electromyography (EMG) activity of the temporalis, masseter, digastric, and infrahyoid muscles during passive jaw opening in healthy adults.

Methods: The EMG activity of the masseter, temporalis, digastric anterior belly, and infrahyoid muscles on the right side was recorded during the four jaw-opening tasks: active opening to 20 mm (AO20); active opening to 40 mm (AO40); passive opening to 40 mm with a rubber mouth prop on the right posterior teeth (POR40); and passive opening to 40 mm with a mouth prop on the left posterior teeth (POL40).

Results: The EMG amplitude of the digastric anterior belly and infrahyoid muscles in either POL40 or POR40 was significantly less than that in AO20 or AO40, respectively.

Effectiveness of remote monitoring and feedback on objective compliance with a mandibular advancement device for treatment of obstructive sleep apnea.

Compliance with a mandibular advancement device is important for the optimal treatment of obstructive sleep apnea. Recent advances in information and communication technology-based monitoring and intervention for chronic diseases have enabled continuous monitoring and personalized management. Self-evaluation and self-regulation through objective monitoring and feedback may improve compliance.

Is thyroid autoimmunity a predisposing factor for fibromyalgia? A systematic review and meta-analysis.

Objectives: Studies report that autoimmune thyroid disease and elevated levels of thyroid autoantibodies are associated with fibromyalgia and widespread chronic pain. The aim of this meta-analysis was to investigate the relationship between fibromyalgia and thyroid autoimmunity. Clinical symptoms and depression associated with fibromyalgia were also investigated in relation to the presence of thyroid autoantibodies.

An Analysis of the Temporomandibular Joint Range of Motion and Related Factors in Children and Adolescents.

This study was designed to establish safe guidelines for pediatric dental practice regarding temporomandibular joint (TMJ) range of motion (ROM) and mouth area (MA). A total of 438 children aged 3-15 years old of homogenous ethnicity participated in the study; the distribution of participants was approximately equal (sex; = 15; age, = 30). Maximum mouth opening (MMO), body height, weight, and age of each participant were recorded, and the TMJ ROM including anterior and lateral movements, MA, and mouth width were documented.

Clinical Characteristics and Relevance of Oral Biofilm in Tongue Smears.

Dimorphic exist as commensal yeast carriages or infiltrate hyphae in the oral cavity. Here, we investigated the clinical relevance of hyphae in non-pseudomembranous oral candidiasis (OC) by smears of tongue biofilms. We conducted a retrospective study of 2829 patients who had had tongue smears regardless of OC suspicion.

Clinical Signs and Subjective Symptoms of Temporomandibular Disorders in Instrumentalists.

Purpose: Most of the reports on instrumentalists' experiences of temporomandibular disorders (TMD) have been reported not by clinical examinations but by subjective questionnaires. The aim of this study was to investigate the clinical signs and subjective symptoms of TMD in a large number of instrumentalists objectively.

Materials And Methods: A total of 739 musicians from a diverse range of instrument groups completed a TMD questionnaire.