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

Objective: Temporomandibular disorders (TMDs) have been historically linked to symptoms such as tinnitus, hearing loss, and vertigo. The aim of this systematic review is to investigate the association between TMDs and audiological symptoms.

Methods: Adhering to the PRISMA guidelines, a comprehensive literature search in three databases was performed searching for studies utilizing imaging and audiometric assessments to diagnose TMDs and audiological symptoms. Of the 1153 studies retrived, a total number of 6 studies were included.

Results: Although tinnitus was commonly reported among patients with TMDs, objective audiological deficits were not consistently confirmed. The majority of existing studies lack standardized diagnostic methods and the heterogeneity of methodologies and limited sample sizes restricted the feasibility of a meta-analysis.

Conclusions: The lack of appropriate instrumental diagnostic tests makes it difficult to draw conclusions about the causal relationship between TMDs and audiological symptoms. Future trials are needed to clarify this clinical association.

Objective: To review the clinical success of the various prosthodontic materials (e.g., lithium disilicate, zirconia, resin composite) in patients with different frequencies of bruxism.

Methods: A systematic search in the most relevant databases to find any randomized clinical trial that assesses the outcome of prosthodontic restorations performed in subjects where an assessment of sleep bruxism (SB) and awake bruxism (AB) was Conducted.

Results: No article present in the literature met the inclusion and exclusion criteria.

Conclusion: The present systematic review unveils an important gap in the field of prosthodontics: no clinical trial in the literature has ever investigated the long-term success rate of different prosthodontic materials in patients with different frequencies of AB and SB.

Objective: Brief behavioral interventions targeting pain (Physical Self-Regulation, PSR) or sleep (Brief Behavioral Intervention for Insomnia, BBTI) show promise for interdisciplinary management of chronic pain, though their feasibility with chronic musculoskeletal orofacial pain (MSK-OFP) populations remains underexplored. This pilot study assessed the feasibility of a randomized clinical trial (RCT) of these interventions in a university-affiliated tertiary OFP clinic and explored clinical changes in pain, sleep, and other secondary outcomes.

Methods: Treatment-seeking participants (N=19) with chronic MSK-OFP and insomnia were randomized to three-session PSR or BBTI. At pre- and post-intervention, participants completed questionnaires (assessing pain intensity, insomnia symptomatology, sleep quality, headache disability, fatigue, jaw-movement limitations, and quality of life), 8 consecutive days of actigraphy and morning/evening diaries. Feasibility outcomes were recruitment, retention, and adherence rates. Clinical outcomes included clinically-meaningful reductions in insomnia symptoms (Insomnia Severity Index [ISI]<15) and pain intensity (>2.5 point on 0-10 Numerical Rating Scale).

Results: Over a 17-month period, of 19 consenting participants (88.9% females, 38.4±12.2y/o, recruitment rate: 1.1/month),12 (92% females, 38.5±11.5y/o) completed the study (retention rate: 63.2%) with high completion rate (questionnaires: 95.8%, daily diaries: 95%, actigraphy: 100%). Despite no significant changes in pain, ISI scores decreased by 6.0 and 4.8-points among BBTI and PSR groups. Improvements in sleep quality, headache disability, fatigue, jaw-movement limitations, and quality of life wereobserved.

Conclusion: RCTs of brief behavioral interventions are feasible in tertiary-OFP clinics.

Objective: This study aimed to clarify differences in assessment of sleep bruxism (SB) using electromyography (EMG) among analysis periods with/without excluding time zones after going to bed (GB) and before getting up (GU).

Methods: Masseteric EMG of 22 outpatients clinically diagnosed as SB was measured. Sleep onset (SO) and waking up (WU) were determined using a wearable motion monitor. Numbers of EMG episodes for nine periods were scored: GB-GU, SO-WU and other seven periods with exclusion of 15 min or more.

Results: Number of episodes/h for SO-WU highly correlated with those for the other eight analysis periods. The number for GB-GU was significantly larger than that for SO-WU, whereas those for other seven analysis periods were not significantly different from that for SO-WU.

Conclusion: The results suggest efficacy of excluding some adequate time zones after GB and before GU with a possibility of wakefulness in SB assessment.

Objectives: To explore the role of autonomic dysregulation in otologic symptoms among individuals with temporomandibular disorders (TMDs).

Methods: Data from 79,731 individuals were analyzed, categorized by the presence of TMD-related or otologic symptoms. Self-administered questionnaires screened TMD and otologic discomfort. Heart rate variability (HRV) and hearing impairment was measured.

Results: Fully-adjusted regression models showed no significant relationship between HRV and otologic discomfort, However, subgroup analyses indicated significant interactions between HRV metrics and otologic symptoms in participants with TMD-related symptoms.

Conclusions: Autonomic dysregulation may contribute to otologic discomfort in individuals with TMD, emphasizing its role in symptoms development.

Objective: Bruxism is repetitive masticatory muscle activity occurring during sleep or wakefulness. Once considered purely harmful, it is now recognized as having both risk (e.g., tooth wear, TMD) and protective roles (e.g., against sleep apnea, reflux). This study evaluated Finnish dental students' understanding of modern bruxism concepts and management.

Methods: A 17-question survey was sent to all Finnish dental students (n = 1000), with 220 responses analyzed using SPSS (version 28) via chi-square and Spearman correlation tests.

Results: Knowledge improved with study progression (p < .001), and students with formal bruxism education answered more accurately (p < .001). However, misconceptions about occlusion as a cause increased with study progression (p = .009) and instruction hours (p = .018).

Conclusion: While Finnish dental students demonstrate growing bruxism knowledge, outdated beliefs persist. Universities should update curricula with evidence-based content and promote critical evaluation of bruxism-related information.

Objective: Between 5-12% of the population suffers from Temporomandibular disorders (TMDs). TMDs are known for their multifactorial aetiology and one of the proposed associated factors is orofacial trauma. This study investigated the possible association between orofacial trauma and TMD in a tertiary referral clinic.

Methods: Patients were diagnosed with one or more TMD diagnoses; myalgia, arthralgia, headache associated with TMD and/or a TMD function diagnosis. 659 consenting patients were included. The majority were female. Ages ranged between 18 and 86 years. All patients were included in a logistic regression analysis, and 236 were included in a network analysis.

Results: Neither analysis yielded a statistically significant association between orofacial trauma and TMD. Results showed associations between psychosocial variables and TMD diagnoses.

Discussion: These results are contradictory to a recent review, where an association between orofacial trauma and TMD was found. The results on psychosocial variables and TMD diagnoses are corroborated by literature.

Conclusion: In conclusion, in this tertiary referral clinic, no association between orofacial trauma and TMD was found.

Objective: To evaluate the position and orientation of the mandibular proximal segment and the volume of condylar and coronoid processes in class II and III patients submitted to bimaxillary orthognathic surgery, using cone beam computed tomography scans.

Methods: Class II and III patients who underwent bimaxillary orthognathic surgery were evaluated by fusing their preoperative virtual planning and postoperative outcomes. The CBCT scans were import into Dolphin Imaging Software and the images were superimposed. The superimposition of the planned and postoperative CBCT images was performed with the voxel-based method. Results: Differences were found in condylar resorption between class II and III.

Conclusion: The displacement of the mandibular proximal segment after orthognathic surgery was negligible and supported by the condyle and coronoid process, which demonstrated with a clinically non-relevant resorption and postoperative stability.

Objective: This study aims to examine craniofacial morphology (CFM) with cephalometric radiographs in adults with tympanic membrane atelectasis (TMA).

Methods: A total of 50 patients (study group) were included and standardized lateral and anteroposterior cephalograms were performed. The control group consisted of 50 patients. Anteroposterior cephalograms were compared with the normative data.

Results: A significant increase in vertical and decrease in horizontal linear measurements were observed in lateral and anteroposterior cephalograms respectively. Except for the facial axis, the angular measurements were not statistically significant.

Conclusion: Cephalometric data indicate a narrow and elongated but nearly proportional CFM for patients with TMA.