Joey Chung, Wendy Knibbe, Thiprawee Chattrattrai, Ad de Jongh, Frank Lobbezoo
{"title":"Network Analysis of Temporomandibular Disorder Pain and Subject-Based Bruxism in Post-Traumatic Stress Disorder Patients.","authors":"Joey Chung, Wendy Knibbe, Thiprawee Chattrattrai, Ad de Jongh, Frank Lobbezoo","doi":"10.1111/joor.14007","DOIUrl":"https://doi.org/10.1111/joor.14007","url":null,"abstract":"<p><strong>Background: </strong>Post-traumatic stress disorder (PTSD) is a psychosocial factor of interest in the multifactorial aetiology of temporomandibular disorder (TMD) pain, awake bruxism (AB) and sleep bruxism (SB).</p><p><strong>Objective: </strong>To investigate direct and indirect associations between post-traumatic stress disorder (PTSD), TMD pain, AB, SB and demographic and psychological variables using network analysis.</p><p><strong>Methods: </strong>The study sample included 597 subjects recruited from a specialised centre for the treatment of PTSD. Network analysis was performed using a Mixed Graphical Model and included variables of self-reported TMD pain, self-reported AB, self-reported SB, age, sex, PTSD symptom severity, mood disorders, anxiety disorders and insomnia severity. These variables were visualised in the network model as nodes connected by edges, representing individual associations.</p><p><strong>Results: </strong>The network model revealed a triangular positive association between TMD pain, AB and SB. AB also displayed a positive connection with anxiety disorders, while PTSD symptom severity was linked to insomnia, mood disorders and anxiety disorders. Age and sex did not significantly influence the network structure, although a negative association was observed between these variables, indicating younger ages among female subjects.</p><p><strong>Conclusion: </strong>TMD pain, AB and SB were strongly associated with each other in subjects with PTSD. The presence of anxiety disorders emerged as a bridge factor, connecting the triangular positive association between TMD pain, AB and SB with psychological conditions (PTSD severity, insomnia severity, mood disorders).</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143976865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Beata Kaczmarek, Lukasz Kaczmarek, Andrzej Mysliwiec, Anna Lipowicz, Krzysztof Dowgierd
{"title":"Kinematic Relationship Between Temporomandibular and Cervical Spine Joints.","authors":"Beata Kaczmarek, Lukasz Kaczmarek, Andrzej Mysliwiec, Anna Lipowicz, Krzysztof Dowgierd","doi":"10.1111/joor.14015","DOIUrl":"https://doi.org/10.1111/joor.14015","url":null,"abstract":"<p><strong>Introduction: </strong>The temporomandibular joints (TMJs) and the cervical spine exhibit a complex functional relationship due to their anatomical and biomechanical connections. Understanding how the mobility of these structures is assessed is important for comprehending their potential interplay in musculoskeletal disorders of the head and neck.</p><p><strong>Aim: </strong>To synthesize and compare the methodologies and findings of studies that simultaneously assessed the mobility of both the TMJs and the cervical spine.</p><p><strong>Materials and methods: </strong>A comprehensive search of databases was conducted to identify relevant studies. The analysis included 15 studies that objectively analyzed movements of both the TMJs and the cervical spine. The methods used for assessing TMJ and cervical spine mobility were extracted and compared.</p><p><strong>Results: </strong>The most commonly used methods for assessing TMJ mobility were rulers or calipers for linear measurements, along with the TheraBite or Cranio-Mandibular Scale. The Zebris digital axiograph was the least frequently used. For cervical spine movements, the cervical range of motion or an inclinometer was most often used. In assessing TMJ mobility, maximal mouth opening (MMO) was consistently examined, while other movements were assessed less frequently. In assessing cervical spine mobility, flexion and extension were most often examined, followed by rotation and lateral flexion in some studies, with flexion and extension of the upper cervical spine being the least frequently assessed. Notably, no study examined TMJ mobility in different head positions relative to the body in the frontal plane (i.e., during lateral flexion of the cervical spine). None of the analyzed studies considered age and sex differences. The methodological heterogeneity of the studies made it difficult to draw unambiguous conclusions. The diversity of tools and protocols used made it difficult to compare results among studies.</p><p><strong>Conclusion: </strong>Further research is needed to better understand the kinematic relationship between the TMJs and the cervical spine and to develop standardized assessment protocols. The methodological inconsistencies across existing studies highlight the need for more uniform approaches in future investigations.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143997240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaqueline Ferreira de Sá, Lays Noleto Nascimento, Júlia Fonseca de Moraes Sousa, Thalita Fernandes Fleury Curado, Murali Srinivasan, Gerald McKenna, Martin Schimmel, Cláudio Rodrigues Leles
{"title":"The Effect of Implant Distribution on Functional and Patient-Reported Outcomes of Mandibular Overdentures Retained by Four Mini Implants.","authors":"Jaqueline Ferreira de Sá, Lays Noleto Nascimento, Júlia Fonseca de Moraes Sousa, Thalita Fernandes Fleury Curado, Murali Srinivasan, Gerald McKenna, Martin Schimmel, Cláudio Rodrigues Leles","doi":"10.1111/joor.14024","DOIUrl":"https://doi.org/10.1111/joor.14024","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated the effects of implant distribution on functional and patient-reported outcomes of patients treated with a mandibular overdenture retained by four mini implants.</p><p><strong>Materials and methods: </strong>Seventy-four participants received four titanium-zirconium mini implants in the anterior mandible, and the relative position of the implants was assessed in post-treatment computed tomography scans with three reference points in the incisal region and first molars of the overdenture. DICOM files were analysed using Blooming Artefact Reduction filters to allow the visualisation of the mini implants in their three-dimensional position without overlapping bone structures. The implant distribution parameters were the polygon area formed by the four mini implants (implant area), anterior and posterior cantilever extensions, and antero-posterior spread. Outcomes included anterior and posterior maximum voluntary bite force (MBF), masticatory performance (MP), oral health-related quality of life impacts (OHIP-Edent) and satisfaction with the overdenture. Paired t-test, Pearson's correlation test and multiple regression were used for data analysis.</p><p><strong>Results: </strong>The implant distribution area was the most relevant variable for all functional parameters. The larger the distribution, the better the MP (p = 0.003), and the anterior (p = 0.011) and posterior MBF (p < 0.001). Concerning patient-reported outcomes, no effect of implant distribution was observed (p > 0.05), suggesting that the potential benefit of better distribution may not affect patients' perception of the treatment.</p><p><strong>Conclusion: </strong>Findings corroborate the influence of implant distribution of the four mini implants on functional parameters and, although the best implant distribution may depend highly on anatomical factors, these parameters should be considered an important prognostic factor for treatment success.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov: NCT04760457.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143997641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Gum Chewing Exercise Synchronised With Neuromuscular Electrical Stimulation is Better Than Gum Chewing Exercise Alone for Improving Masticatory Function and Mucosal Moisture in Older Adults With Sarcopenic Dysphagia.","authors":"Ji-Su Park, Jong-Bae Choi, Na-Kyoung Hwang","doi":"10.1111/joor.14017","DOIUrl":"https://doi.org/10.1111/joor.14017","url":null,"abstract":"<p><strong>Background: </strong>Gum chewing exercise (GCE) is widely used to improve masticatory function in older adults. Nevertheless, it is necessary to develop new therapeutic methods that exert synergistic effects with GCE.</p><p><strong>Objective: </strong>This study aimed to examine the effects of GCE synchronised with neuromuscular electrical stimulation (NMES) on masticatory function and mucosal moisture in older adults with sarcopenic dysphagia.</p><p><strong>Methods: </strong>This study enrolled 40 older adults with sarcopenic dysphagia. The participants were randomly assigned to the GCE and GCE plus NMES groups. The GCE group underwent GCE using xylitol gum for 30 min/day, 5 days/week for 4 weeks. The GCE plus NMES group performed GCE with NMES on the upper border of the masseter muscle, below the zygomatic bone in the facial area for 30 min/day, 5 days/week, for 4 weeks. The primary outcome measures were the maximum bite force and masseter muscle thickness. The secondary outcome measure was mucosal moisture on the dorsum of the tongue.</p><p><strong>Results: </strong>The GCE plus NMES group showed a significant increase in the maximum bite force, masseter muscle thickness, and saliva secretion compared with the GCE group (p < 0.05, all).</p><p><strong>Conclusion: </strong>This study demonstrated that NMES synchronised with GCE was more effective than GCE alone in improving masticatory function and mucosal moisture in older adults with sarcopenic dysphagia.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144009606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Sound Myogram of Masseter Muscle in Masticatory Normal Task Movement by a Wavelet Transform Method.","authors":"Iwao Sato, Yoko Ueda, Shinichi Kawata, Yutaro Natsuyama, Tomiko Yakura, Ryuichi Ueno, Takuya Osada, Zhong-Lian Li, Hidenobu Miyaso, Masahiro Itoh","doi":"10.1111/joor.14020","DOIUrl":"https://doi.org/10.1111/joor.14020","url":null,"abstract":"<p><strong>Background: </strong>A simple and easy-to-use method for recording jaw muscle activity is important for minimising the need for specialised expertise in electrode placement, reducing the burden on the subject.</p><p><strong>Objective: </strong>This study aimed to determine whether masseter muscle activity analysis by sound myography (SMG) combined with laser displacement-induced skin movement sensing (LDSMS) is comparable to surface electromyography (SEMG).</p><p><strong>Methods: </strong>Eight healthy volunteers (21.0 ± 1.67 years) were included in the study. The measurement tasks consisted of clenching (CL), maximum jaw opening (MJO) and jaw closing and biting (JCB). Masseter muscle activity was recorded simultaneously using SMG, LDSMS and SEMG. We analysed the frequency amplitude spectrum using wavelet analysis and relationships between the signals from the three measurement methods (SMG, LDSMS and SEMG) using principal component analysis (PCA).</p><p><strong>Results: </strong>The masseter muscle activity during jaw tasks analysed using SMG, LDSMS and SEMG was clearly defined. The peak of the integral time-frequency power (ITFP) (mV<sup>2</sup>/Hz) of the SMG was indicated by approximately CL, 9.8 ± 0.9, JCB, 10.5 ± 1.4 and MJO, 11.3 ± 1.4 Hz. The peaks of the LDSMS (CL, 4.2 ± 0.5, MJO, 4.2 ± 0.5 and JCB, 4.4 ± 0.6 Hz) and SEMG (CL, 54.7 ± 4.6 MJO, 102.1 ± 9.9 and JCB, 71.7 ± 9 Hz) were shown. PCA analysis revealed clusters of masseter muscle activity during jaw tasks obtained by the SMG, SEMG, and LDSMS devices.</p><p><strong>Conclusion: </strong>The SMG with the LMSMS by wavelet analysis is a simple and easy-to-use method that can be used to detect jaw muscle activity issues.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144029074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaojie Lin, Lanlan Jiang, Qiaozhi Jiang, Qixin Zeng, Zuke Ya, Xiangzhi Yong, Guocheng Mei, Yuxiao Huang, Juanxiu Su, Renchuan Tao
{"title":"Combined Proteomic and Metabolomic Analysis of Cognitive Impairment in Patients With Burning Mouth Syndrome.","authors":"Xiaojie Lin, Lanlan Jiang, Qiaozhi Jiang, Qixin Zeng, Zuke Ya, Xiangzhi Yong, Guocheng Mei, Yuxiao Huang, Juanxiu Su, Renchuan Tao","doi":"10.1111/joor.14003","DOIUrl":"https://doi.org/10.1111/joor.14003","url":null,"abstract":"<p><strong>Background and objective: </strong>Burning mouth syndrome (BMS) is considered a multifactorial condition. The study aimed to investigate the association between BMS and cognitive impairment (CI), as well as the proteomic and metabolomic characteristics.</p><p><strong>Materials and methods: </strong>A total of 42 BMS patients and 23 healthy controls were recruited from August 2022 to August 2024 to analyse the relationship between BMS, psychological factors and cognitive function. Saliva samples were collected for comprehensive proteomic and metabolomic analyses, followed by validation studies.</p><p><strong>Results: </strong>The mini-mental state examination (MMSE) indicated a significantly higher prevalence of CI in the BMS group (50.00%) compared to the healthy control group (8.70%) (p = 0.001). Logistic regression analysis revealed that BMS incidence was negatively correlated with MMSE scores and positively correlated with depression scores (both p < 0.05). Proteomics and metabolomics identified 197 differential proteins and 208 differential metabolites in the BMS group relative to the healthy control group. Additionally, there were 407 differential proteins and 344 differential metabolites in the BMS with cognitive impairment (BC) group compared to the BMS with noncognitive impairment (BnC) group. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of combined proteomics and metabolomics data revealed the involvement of the arachidonic acid metabolic pathway and salivary secretion pathway in BMS and CI respectively.</p><p><strong>Conclusion: </strong>Higher levels of depression and lower cognitive function appear to be more closely associated with BMS. The pathways of arachidonic acid metabolism and salivary secretion may play significant roles in the pathogenesis of BMS and CI respectively.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143988804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adrian Ujin Yap, Chengge Liu, Kai Yuan Fu, Jie Lei
{"title":"Symptom Dimensions of Temporomandibular Disorders: Correlates With Emotional Distress, Jaw Function and Oral Health-Related Quality of Life.","authors":"Adrian Ujin Yap, Chengge Liu, Kai Yuan Fu, Jie Lei","doi":"10.1111/joor.14014","DOIUrl":"https://doi.org/10.1111/joor.14014","url":null,"abstract":"<p><strong>Background: </strong>A unified framework for assessing temporomandibular disorder (TMD) pain and dysfunction across multiple symptom dimensions is beneficial.</p><p><strong>Objectives: </strong>The study explored the associations between TMD symptom subtypes and dimensions with emotional distress, jaw function and oral health-related quality of life (OHRQoL). Additionally, it examined factors linked to high jaw functional limitation (JFL) and low OHRQoL.</p><p><strong>Methods: </strong>Participants, recruited from a major university, completed a survey that included demographics, the four-dimensional five TMD symptoms (5Ts-4D) screener, depression, anxiety and stress scales-21 (DASS-21), JFL scale-8 (JFLS-8) and oral health impact profile for TMDs (OHIP-TMD). Data were analysed using Chi-square and nonparametric tests, along with logistic regression (α = 0.05).</p><p><strong>Results: </strong>Among the 414 participants (mean age 22 years, 77.8% women), 23.4% reported no TMD symptoms (NT), while 15.7%, 22.2% and 38.6% experienced pain-related (PT), intra-articular (IT) and combined (CT) symptoms respectively. Notable differences in global TMD severity (CT>IT/PT>NT), global distress (CT>IT, NT), JFL (CT>PT, IT, NT) and global OHIP (CT>IT/PT/NT; IT>NT) scores were observed. Moderate correlations were found between global TMD severity and both JFL and global OHIP in the PT and CT groups (r<sub>s</sub> 0.41-0.64), and between global distress and these factors in the CT group (r<sub>s</sub> 0.59-0.61). High JFL was associated with symptom interference (OR 1.38) and anxiety (OR 1.20), while low OHRQoL was related to symptom duration (OR 1.26) and interference (OR 2.09).</p><p><strong>Conclusions: </strong>Individuals with CT show elevated symptom severity, emotional distress, jaw function and OHRQoL impairments. Tailored interventions targeting TMD duration, interference and anxiety could improve outcomes.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143972354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pig as Pre-Clinical Animal Model for Research on Temporomandibular Joint Surgery: A Systematic Review.","authors":"Jean-François Guignardat, Florent Barry, Romain Nicot","doi":"10.1111/joor.13995","DOIUrl":"https://doi.org/10.1111/joor.13995","url":null,"abstract":"<p><strong>Introduction: </strong>Temporomandibular disorders (TMDs) are common myotemporomandibular joint disorders in the general population, but their management remains complex with significant failure or recurrence rates. Research on this topic commonly uses pig models. This study investigated whether the pig was a suitable model for surgical temporomandibular joint (TMJ) research.</p><p><strong>Materials and methods: </strong>This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The research question was: 'Is the pig a good model for studies of the TMJ and TMDs?' The search was conducted in MEDLINE/PubMed, EMBASE and Web of Science databases.</p><p><strong>Results: </strong>A total of 761 articles were initially identified. After the removal of 322 duplicates, 439 articles were screened. Thirty-nine articles were deemed relevant based on the review of titles and abstracts. Finally, 17 met the inclusion/exclusion criteria and were included in the review. All studies concluded that the pig is an appropriate animal model for TMJ research. While only a few studies have investigated TMD induction in pigs, classical methods of TMD induction were considered effective.</p><p><strong>Discussion: </strong>TMJ morphology in pigs closely resembled that of humans. The pig TMJ exhibited rotational and translational joint motions similar to those in humans, making it the most suitable animal for TMJ surgical research.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143976051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paulina Vortkamp, Stefan Rues, Sven Räther, Lydia Eberhard, Alexander Rößler, Frederic Bouffleur, Reinald Kühle, Franz Sebastian Schwindling, Peter Rammelsberg, Christoph J Roser, Christopher Herpel
{"title":"Digital Occlusal Contact Area Indicates Masticatory Performance for Normal Occlusion, but Not for Malocclusion.","authors":"Paulina Vortkamp, Stefan Rues, Sven Räther, Lydia Eberhard, Alexander Rößler, Frederic Bouffleur, Reinald Kühle, Franz Sebastian Schwindling, Peter Rammelsberg, Christoph J Roser, Christopher Herpel","doi":"10.1111/joor.14002","DOIUrl":"https://doi.org/10.1111/joor.14002","url":null,"abstract":"<p><strong>Objectives: </strong>Since 1949, occlusal contact area (OCA) has been recognised as an indicator of masticatory performance (MP), but it required individual and laborious analog measurement. Today, a digital workflow could provide automatic quantification.</p><p><strong>Objective: </strong>To find optimal parameters for a digital evaluation in terms of maximising correlation between OCA and MP.</p><p><strong>Methods: </strong>MP was measured clinically by comminution of standardised test food by 41 participants (mean age = 29, n female = 28), including 18 patients with dentofacial deformities and 23 healthy subjects with normal occlusion. OCA was measured in the laboratory. After impression taking, gypsum casts were digitised (D2000, 3shape) and aligned in maximum intercuspidation (Geomagic Design X2022, 3D Systems). The maxilla was enlarged with surface offsets of 100, 150, 200, 250, 300, 350, 400, 800 and 2000 μm to simulate different interocclusal distances. OCA was identified at the mandible surface by intersection with the respective enlarged maxilla scan (3D surface area). OCA projection onto the occlusal plane (2D area) was also computed, resulting in a total of 18 different OCA evaluations per patient.</p><p><strong>Results: </strong>MP was lower in patients with malocclusion than in individuals with normal occlusion (X50 mean 5.35 vs. 4.62). The 18 mean OCAs ranged from 11 to 852 mm<sup>2</sup>. In subjects with normal occlusion, strong correlations were shown for interocclusal distances between 150 and 300 μm combined with 3D projection (r < -0.7). For patients with malocclusion, no significant correlations were identified.</p><p><strong>Conclusions: </strong>OCA appears a suitable indicator of MP in individuals with normal occlusion, but not in patients with malocclusion, where other factors seem more determinant.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144030753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yang Yang, Ji-Xiong Qin, Yuan Yao, Sha-Sha Liu, Hong Zeng, Zhong-Yi Fang, Li-Li Xu, Bin Cai
{"title":"Sleep Bruxism Is a Significant Risk Factor for the Recurrence of Temporomandibular Disorder: A Single-Center Retrospective Study.","authors":"Yang Yang, Ji-Xiong Qin, Yuan Yao, Sha-Sha Liu, Hong Zeng, Zhong-Yi Fang, Li-Li Xu, Bin Cai","doi":"10.1111/joor.13991","DOIUrl":"https://doi.org/10.1111/joor.13991","url":null,"abstract":"<p><strong>Background: </strong>Oral behaviours are risk factors for temporomandibular disorder (TMD), but the associations between oral behaviours and TMD prognosis remain unclear.</p><p><strong>Objective: </strong>To assess the effect of oral behaviours on TMD prognosis.</p><p><strong>Methods: </strong>This single-centre retrospective study included 99 TMD patients (12 males and 87 females, median age: 28 years) who received physical therapy between January and August 2022 and completed a 6-month follow-up. Pain intensity, mouth opening, jaw function and oral behaviours were assessed at baseline. At follow-up, disease recurrence and the abovementioned indicators were assessed. Paired-samples t tests were used to compare pain, mouth opening and jaw function before and after treatment. Chi-squared tests were used to assess changes in oral behaviours. Multivariate logistic regression analyses were used to identify risk factors for TMD recurrence. p < 0.05 indicated statistical significance.</p><p><strong>Results: </strong>TMD recurrence was reported by 25 patients, yielding a recurrence rate of 25%. After physical therapy, the patients' pain, mouth opening and jaw function significantly improved (p < 0.001). The oral behaviour during waking hours was effectively corrected (p < 0.05); however, it was difficult to improve nocturnal oral behaviour (p > 0.05). Multivariate logistic regression analysis revealed that sleep bruxism was an independent risk factor for TMD recurrence (OR = 4.411, p = 0.023).</p><p><strong>Conclusion: </strong>Sleep bruxism is a significant risk factor for TMD recurrence. Close attention should be given to whether TMD patients have a habit of sleep bruxism.</p>","PeriodicalId":16605,"journal":{"name":"Journal of oral rehabilitation","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143970578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}