Cranio-The Journal of Craniomandibular & Sleep Practice最新文献

Background: The systemic and psychosocial associations of temporomandibular disorders (TMD) in youth are poorly defined. This study assessed distribution of TMD-related symptoms by age and sex and examined associations with comorbidities in children and adolescents from multiple academic centers.

Methods: Data from BigMouth repository (01/2014-05/2025) included 5-to-17-year-old children and adolescents with completed TMD-related intake items. Painful TMD was defined as self-reported pain upon chewing/talking/jaw use. Symptom distribution was compared by age and sex; associations with comorbidities were assessed using chi-square and multivariable logistic regression.

Results: Among 13,678 children and adolescents (12.9±3.5 years, 53.1% female), common symptoms included grinding (13.1%), headaches (11.3%), and temporomandibular joint noises (8.2%). Adolescents (10-17 years) more frequently reported painful TMD (4.2% vs. 2.7%, p<.001) and self-reported joint sounds (16.7% vs. 12.02%, p<.001) compared to 5-to-9-years-old children. Females reported more painful TMD than males (58.5% vs. 52.8%, p=.012). Painful TMD co-occurred with higher prevalence of headaches (29.9% vs. 12.5%), sleep apnea (10.1% vs. 4.3%), depression (39.4% vs. 12.4%) and anxiety (39.7% vs. 23.5%, all p's<0.001) than with non-painful TMD. Youth with higher psychological comorbidity had higher odds of painful TMD (p<.001, OR=2.37, 95%CI 1.76, 3.19).

Conclusions: TMD symptoms increase during adolescence. Painful TMD is associated with somatic and psychological comorbidities, highlighting need for early identification and targeted intervention.

Objective: Over the past three decades, temporomandibular joint (TMJ) arthrocentesis has evolved from a mechanical lavage procedure into a sophisticated treatment standard incorporating principles of biological modulation and regenerative medicine. The aim of this study is to analyze the global TMJ arthrocentesis literature between 1989 and 2025 using bibliometric methods, thereby objectively mapping the procedure's technical evolution, clinical paradigm shifts (the transition from Axis I to Axis II), and the migration of research focus from surgical technique to biopsychosocial management.

Materials and methods: Data were retrieved from the Web of Science Core Collection (WoSCC) database on January 13 2026. A total of 792 original articles and reviews, identified through a comprehensive search strategy, were analyzed using VOSviewer and R-Bibliometrix software regarding annual growth rate, citation networks, conceptual structure, and global collaboration dynamics.

Results: The literature was found to be expanding with an annual growth rate of 12.1%, peaking in 2024 in terms of both publication count (n = 74) and citations (n = 1952). While the USA (n = 111) remains the most productive country, Turkey (n = 107) ranks second, demonstrating its strong clinical activity in the field. In citation networks, Nitzan's "anchored disc" theory (n = 314 citations) maintains its central position; however, the rise of Schiffman's DC/TMD criteria (n = 125 citations) and Manfredini's psychosocial studies indicates that success is now contingent more upon patient phenotype than physical parameters. Furthermore, the concepts of "ultrasound guidance" and "regenerative agents" (PRP, HA) have dominated the literature in recent years.

Conclusion: The TMJ arthrocentesis literature is undergoing a dynamic transformation characterized by surgical minimization and technological integration. Research trends corroborate that the concept of "mechanical success" has yielded to a holistic treatment model constituted by accurate patient selection (Axis II), imaging guidance, and biological regeneration.

Objective: TMJ arthritis is common in juvenile idiopathic arthritis (JIA). Condylar height loss can shift mandibular loading and increase compressive TMJ stress, which may persist even when synovitis is controlled with biologics. We hypothesize that light elastics delivered via anchorage devices (TADs) can partially unload the joint.

Methods: This hypothesis driven biomechanical model integrates condylar support loss, lever geometry, hyperdivergent susceptibility, and feasibility of routing low forces through a perioral soft tissue corridor. A cephalad inter implant elastic vector of ~25 to 50 g is evaluated.

Results: Condylar height loss is predicted to promote backward mandibular rotation about the pterygomasseteric sling, increasing compression and vertical destabilization, especially in leptoprosopic patterns. The cephalad elastic vector is predicted to generate a counter moment, support posterior vertical neutrality, and reduce joint reaction forces.

Conclusion: A low force, TAD based adjunct may complement systemic therapy by addressing loading. Imaging studies are needed to confirm.

Objective: To conduct the cross-cultural adaptation and psychometric validation of the OHIP-TMDs for Portuguese-speaking populations, developing a unified version that encompasses both European and Brazilian Portuguese variants.

Methods: A bicentric observational study was conducted according to Beaton's guidelines and COSMIN standards. The instrument underwent translation, expert review, and pre-testing. Psychometric validation included 211 individuals with TMD (Portugal: n=98; Brazil: n=113). Internal consistency (Cronbach's α, McDonald's ω), test-retest reliability (ICC), structural validity (CFA), convergent validity (Fonseca Anamnestic Index), and known-groups validity were assessed separately for each country.

Results: The OHIP-TMDs-PT demonstrated excellent internal consistency (α=0.98 PT; α=0.96 BR) and reliability (ICC=0.96 PT; ICC=0.94 BR). CFA supported a unidimensional structure in Portugal and a second-order model in Brazil. Strong convergent validity and significant known-groups differences were observed.

Conclusion: The OHIP-TMDs-PT is a reliable and valid instrument for assessing oral health-related quality of life in individuals with TMD across Lusophone populations.

Objective: This study examined the associations between perceived stress, sociodemographic and health-related factors, temporomandibular disorders (TMD), and masticatory muscle thickness assessed by ultrasonography.

Methods: Forty participants were classified into high- and normal-stress groups. Perceived stress, TMD status, and ultrasonographic thickness of the masseter, anterior temporalis, and anterior digastric muscles were assessed.

Results: Higher perceived stress was associated with greater TMD prevalence and reduced anterior digastric muscle thickness. Male participants showed greater masseter and digastric muscle thickness. In regression analyses, female gender and high perceived stress were associated with reduced anterior digastric thickness. However, group differences in TMD prevalence and the absence of bruxism assessment limit causal inference.

Conclusion: Perceived stress and gender were associated with anterior digastric muscle thickness in this exploratory, cross-sectional sample of young adults.

Objective: To investigate the association between tinnitus impact and craniofacial and cervical disability, dizziness, anxiety, and depression in individuals with Temporomandibular Disorders (TMDs) and self-reported tinnitus.

Methods: A cross-sectional study. Fifty individuals with TMDs and tinnitus completed the Tinnitus Handicap Inventory (THI), Neck Disability Index (NDI), Craniofacial Pain and Disability Inventory (CF-PDI), Dizziness Handicap Inventory (DHI), and Hospital Anxiety and Depression Scale (HADS). Prevalence, correlation. and a multiple linear regression were calculated to verify the association between THI and variables assessed.

Results: Individuals with TMD and tinnitus impact have higher prevalence of cervical disability, higher prevalence of dizziness-related impact and higher prevalence of depressive symptoms than those with TMD and no tinnitus impact. THI scores presented positive and moderate correlations with NDI and HADS and 22% of its variance was explained by anxiety symptoms.

Conclusion: Findings highlight the interplay between emotional and musculoskeletal factors, suggesting comprehensive and multidisciplinary management.

To evaluate signs and symptoms of temporomandibular disorders (TMD) and bruxism in aligner wearers. 87 participants were assessed through virtual questionnaire, while 20 aligner users and 20 controls were clinically followed-up for three months. Cluster analysis identified three patient profiles differing in age, pain, and oral behaviors. No association was observed between aligner use and TMD or self-reported bruxism onset. Aligner and control groups showed reduced oral habits over time, suggesting that clear aligner therapy does not increase the risk of TMD or bruxism but may contribute to greater awareness and control of oral parafunctional behaviors.

Objectives: To investigate the relationship between Type D personality and temporomandibular disorders.

Methods: A cross-sectional study was conducted with 50 participants (25 TMD patients and 25 healthy controls) aged 17-61 years. TMD diagnosis was established according to the DC-TMDs. Psychological status was assessed using the GAD-7, PHQ-9, OHIP-14, and DS-14.

Results: A significant difference was found between the TMD and control groups in terms of gender. The presence of type D personality disorder showed no significant differences regarding age, gender, education level, occupation and marital status. However, the presence of type D personality disorder showed significant differences regarding GAD-7, PHQ-9, OHIP-14 scores.

Conclusion: Type D personality was not found to be a significant risk factor for the presence of TMD in this sample. Future studies with larger, more diverse populations are warranted to further clarify the complex interaction between personality traits and TMD pathophysiology.