Bruxism Research Articles

Comparison Between Ecological Momentary Assessment and Self-Report of Awake Bruxism Behaviours in a Group of Healthy Young Adults.

The aim of this investigation was to compare the self-reported frequency of awake bruxism (AB) behaviours by means of a validated single-observation point questionnaire (i.e., Oral Behaviour Checklist [OBC]) with the frequency reported in real-time with an Ecological Momentary Assessment (EMA) over 1 week. One hundred healthy young adults took part in the study. The frequency of some activities belonging to the spectrum of AB behaviours (i.e., teeth contact, mandible bracing, teeth clenching, teeth grinding) was evaluated using the EMA approach with smartphone technology support over 1 week. The OBC questionnaire was used to evaluate the self-reported frequency of the same AB behaviours. Spearman's rank correlation coefficient was adopted to test the correlation between the average score of each OBC question considered (i.e., teeth contact, mandible bracing, teeth clenching, teeth grinding) and the average frequency of the corresponding EMA item. Statistical analysis showed a weak-to-moderate level of correlation between the two different AB assessment methods. Mandible bracing showed the highest level of correlation, while teeth grinding had the lowest one. While the OBC represents a valid and easy-to-administer screening tool for evaluating bruxism behaviours, the EMA approach provides a more detailed real-time report on AB behaviours.

THE IMPACT OF STRESS DURING THE COVID-19 PANDEMIC ON THE DENTAL HEALTH OF MU-VARNA EMPLOYEES

Introduction: One of the negative manifestations of stress and anxiety related to dental health is the unconscious clenching or grinding of teeth, which gradually leads to tooth wear. Aim: The aim of this article is to determine the impact of the COVID-19 pandemic on the dental health of MU-Varna employees, to follow up on the therapeutic effect of wearing a bruxism mouthguard, and for the results to be applied in preparing a model for health promotion based on a multidisciplinary approach. Materials and Methods: From July 2022 to now, 995 patients have been examined, and 40 of them, university lecturers and administrative staff at MU-Varna, Bulgaria, have been prescribed a bruxism mouthguard. The following instruments were used: a unified form for defining the dental status and a survey about the therapeutic effect of the bruxism mouthguard. Results and Discussion: A voluntary, anonymous survey was conducted among MU-Varna employees in October 2023. The SPSS (version 22) software was used to process the data from the survey. The assessment of the therapeutic effect of the mouth guard was based on the results from the secondary exam at the clinician’s office and those from the conducted individual survey among the people wearing mouth guards for a specified period of time. Conclusion: The analysis indicates that the employees have a positive attitude toward wearing the mouthguard in the future. Its use helped decrease the frequency of conditions such as affect, anxiety, and quick tiredness.

The association between temporomandibular disorders signs and symptoms, bruxism, and health variables: A cross‐sectional study

ABSTRACT Objective The study aimed to determine the associations between several important and potentially modifiable health variables and TMD signs and symptoms. Methods A total of 209 adult dental patients from two clinics completed surveys on demographics, self-reported awake and sleep bruxism, TMD signs and symptoms, stress, depression, chronic pain, and sleep quality. Correlations and regression analyses were used to identify associations between these health variables and TMD symptoms. Results Awake bruxism was significantly associated with chronic pain intensity, jaw pain, clenching pain, and headaches. Stress and depression correlated with chronic pain intensity and clenching pain. No correlation was found between BMI and TMD symptoms. In multivariate analysis, both awake and sleep bruxism were associated with TMD symptoms, while sleep quality was related to pain on chewing and depression was associated with chronic pain intensity. Conclusions Identifying these associations can guide clinicians in assessing, educating and managing TMD-related issues by addressing bruxism, sleep quality, and depressive symptoms.

Occlusal splint or botulinum toxin-a for jaw muscle pain treatment in probable sleep bruxism: A randomized controlled trial

ObjectivesTo conduct an equivalency randomized controlled trial comparing occlusal splint (OS) and botulinum toxin-A (BTX-A) on jaw muscle pain in probable sleep bruxism. MethodsSixty patients (≥18 years, probable sleep bruxism, and jaw muscle pain) were randomly allocated into groups. The primary outcome was the reduction of jaw muscle pain, assessed using the Graded Chronic Pain Scale (GCPS, v2.0). Secondary outcomes included: parameters of jaw opening and mandibular mobility; distribution of muscle pain; Jaw Functional Limitation Scale–20 (JFLS-20), Oral Behaviors Checklist (OBC); and Oral Health Impact Profile-14 (OHIP-14). Only the evaluator was blinded. Multilevel mixed-effects regression models were used. ResultsFifty-nine patients (30 received OS and 29 BTX-A) were analyzed at baseline, 3 and 6 months follow-up. One patient dropped out after receiving the intervention. No differences between the interventions were observed concerning the GCPS (p = 0.627), although a significant reduction was observed at 3 (OR=13.26, 95%CI[6.61–26.59]) and 6 months (OR=12.36, 95%CI[4.93–30.98]), regardless of the treatment. BTX-A showed a lower score reduction on JFLS-20 than OS (OR=0.29, 95%CI[0.11–0.82]). BTX-A presented inferior results for the parameters: opening without pain(p = 0.045), unassisted maximum opening(p = 0.024), assisted maximum opening(p = 0.041), and protrusion(p = 0.016). An improvement in OHIP-14 scores was observed at 3 (IRR=1.08, CI95%[1.02–1.14]) and 6 months (IRR=1.10, CI95%[1.04–1.16]), regardless of the intervention. BTX-A participants(n = 23;79,3%) reported mild discomfort during chewing. ConclusionOS and BTX-A can effectively decrease the GCPS scores, improve OHRQoL, and enhance functional outcomes in sleep bruxist patients with jaw muscle pain. OS demonstrated slight advantages in specific parameters. Clinical SignificanceBoth occlusal splints and botulinum toxin-A effectively reduce jaw muscle pain in bruxist patients, improving quality of life and mandibular function. Clinically, occlusal splints may offer additional benefits in specific functional parameters. (NCT03456154)

ASSESSMENT OF ORAL BEHAVIORS AND PSYCHOSOCIAL ASPECTS OF FEDERAL POLICE OFFICERS

Objective: To evaluate the oral behaviors and psychosocial aspects of adults belonging to the Federal Police class. Methods: An observational longitudinal study was conducted with 30 adult individuals from the special group of Federal Police from the city of Curitiba, Paraná. The median age of participants was 39.70 (± 7.35) years. Quality of life, anxiety and perceived stress were assessed using the SF-36, GAD-7 and PSS-14 questionnaires respectively. Awake bruxism was evaluated using the Ecological Momentary Assessment method with the WhatsApp mobile application. Messages were sent 15 times a day, seven days a week, between 9:00 am and 7:00 pm, at random times, to choose one of five oral behaviors: teeth contact, teeth clenching, teeth grinding, mandibular bracing, and relaxed jaw muscles. Cronbach's alpha test, Shapiro-Wilk’s test, Wilcoxon's non-parametric test for paired samples, Friedman's non-parametric test for paired samples, Spearman's non-parametric correlation test, and Kruskal-Wallis non-parametric test, followed by Dunn's 2–2 comparison test were employed. Results: The most frequent oral behaviors during the week were relaxed jaw muscles (49.75 ± 29.28), teeth contact (31.50 ± 24.71), mandibular bracing (10.42± 18.99), teeth clenching (6.82 ± 8.96), and teeth grinding (1.48 ± 3.04). Quality of life was considered excellent, anxiety was low, and there was no stress. There was no correlation between stress, anxiety and quality of life and awake bruxism. Conclusion: The federal police officers evaluated showed a high frequency of awake bruxism, but the psychosocial aspects were considered excellent.

Diagnostic significance of the method of computerized joint vibration analysis in studying the functional state of temporomandibular joints

polyetiology, progressive course and high frequency of relapses is one of the urgent problems of modern dentistry. Different conceptual approaches to the analysis of etiological and pathogenetic aspects of the development of dysfunctional TMJ disorders predetermine the increased interest in the search for highly informative diagnostic methods, especially at the stage of preclinical manifestations.Goal. Evaluation of possibilities of computerized joint vibration analysis method in diagnostics of TMJ functional state.Materials and methods. The study involved 42 people of both sexes with physiologic types of bite, preserved tooth rows, no signs of functional disorders in TMJ and masticatory muscles. The patients underwent clinical dental examination, «Hamburg test», selective grinding of teeth, and measurement of mouth opening amplitude. Joint vibration analysis was performed on the hardware-software complex «BioPAK» with registration of TMJ noise oscillations according to the following indices: «Total Integral», «High Integral», «Low Integral», «Ratio». A flow chart (Ishigaki S. et al., 1993) was used to interpret the numerical values. The functional state of TMJ was de-termined according to the flowchart using numerical parameters in accordance with the classification of TMJ disorders (Wilkes С.Н., 1989).Results. In patients with physiologic occlusion, according to joint vibration analysis, Me «Total Integral» of the right TMJ was 11.7 PaHz, left TMJ – 12.6 PaHz, [Q-25; Q-75] – [9.3; 15.1] PaHz and [10.5; 18.3] PaHz respectively, Me «High Integral» of the right TMJ – 1.3 PaHz, left TMJ – 1.4 PaHz, [Q-25; Q-75] – [1.0; 1.8] PaHz and [1.2; 2.1] PaHz respectively, with no statistically significant (p≤0.05) differences in the studied parameters between the right and left TMJ.Conclusions. The diagnosis of «structurally intact» TMJ, corresponding to stage I of the American classification of TMJ disorders (Wilkes S.N., 1989) in people with physiologic types of bite, is confirmed by the numerical values [Q-25; Q-75] of «Total Integral», «High Integral» (block diagram of S. Ishigaki et al., 1993), the degree of maximum mouth opening [43; 50] mm in the absence of pronounced signs of facial asymmetry.

The Association Between Specific Oral Behaviors and the Number of Temporomandibular Disorder Symptoms in the General Population: A Cross-Sectional Study.

This study aimed to thoroughly explore the relationship between individual oral behavior and the differing numbers of temporomandibular disorder (TMD) symptom in the general population. A total of 565 participants were recruited and completed a questionnaire containing demographic characteristics, eight specific oral behaviors, and five major TMD symptoms (5Ts) checklist. Multivariate linear regression analysis was performed to assess the relationship between individual oral behavior and the number of TMD symptoms, after controlling for confounders. The prevalence of TMD symptoms was up to 38.2% in the general population, with 64.6% of the participants engaging in one or more oral behaviors. Female participants showed a stronger positive association with most oral behaviors than males. Moreover, wake oral behaviors exhibited a higher correlation coefficient value with TMD symptom number than sleep oral behaviors. Among the eight oral behaviors, bruxism in sleep exhibited no significant correlation with the of TMD symptom number (P>0.05). Seven other specific oral behaviors were significantly correlated with the number of TMD symptoms by multivariate linear regression analysis (P<0.01). The associations between the seven oral behaviors and TMD symptom number remained significant in sleep posture pressuring jaw (β: 0.165, 95% CI: 0.080-0.250), bruxism in awake (β: 0.341, 95% CI: 0.132-0.550), teeth clenching (β: 0.422, 95% CI: 0.264-0.580), pressing, holding, or touching teeth together (β: 0.282, 95% CI: 0.169-0.395), holding or tightening muscles without clenching (β: 0.447, 95% CI0.304-0.589), holding jaw forward or to the side (β: 0.694, 95% CI0.526-0.861), and holding jaw in rigid or tense position (β: 0.571, 95% CI0.418, 0.724) after adjustment for demographic factors (P<0.01). There was a positive association between seven specific oral behaviors and TMD symptom number. Individuals with higher frequency of specific oral behaviors are more likely to suffer from more TMD symptoms. Sleep bruxism exhibited no association with TMD symptoms and symptom number.

Changes in self-reported sleep and awake bruxism in relation to the management of temporomandibular disorders ("care as usual") in a specialty clinic population.

The treatment of temporomandibular disorders (TMD) often includes the management of sleep bruxism (SB) and awake bruxism (AB). However, few studies have investigated how SB and AB change after the initiation of the interventions aimed at reducing the activity of masticatory muscles in TMD patients. The aim of the present study was to investigate changes in self-reported SB and/or AB with regard to baseline at 6 weeks after receiving TMD treatment, i.e., counseling alone or counseling combined with any other treatment, and to investigate the association between the type of TMD treatment and changes in self-reported SB and/or AB. A total of 68 TMD patients were included in this prospective study, and they all received counseling. Thirty-three of the 68 patients received additional treatment, e.g., physical therapy, psychological therapy and/or an oral appliance, beside counseling. The self-reported SB and AB frequency values were obtained from the Oral Behavior Checklist (OBC) questionnaire at baseline (t0) and at week 6 after receiving treatment (t1). The frequency of SB and AB was assessed as SB, AB-grinding, AB-clenching, AB-bracing, and AB-combined (i.e., the maximum frequency of all AB types combined). The Wilcoxon signed-rank test was used to compare the SB and AB frequency at t0 and t1 in patients who received counseling alone and those who received counseling combined with other treatment. The χ2 test was used to investigate the association between the type of TMD treatment and changes in SB and/or AB. The frequency of self-reported SB and all types of AB did not change in patients who received counseling only. In contrast, there was a significant increase in the frequency of AB-bracing and AB-combined between t0 and t1 in patients who received counseling combined with other treatment. No changes in the frequency of self-reported SB and all types of AB were found in patients who received counseling only. However, patients who received counseling combined with other treatment showed a significant increase in the frequency of AB-bracing and AB-combined as compared to baseline.

Understanding the clinical management of co-occurring sleep-related bruxism and obstructive sleep apnea in adults: A narrative and critical review.

Sleep-related bruxism (SRB) is a motor oral behavior characterized by tooth grinding and jaw clenching activity, reported by 8%-12% of the adult general population and 3% of older individuals. The frequency of one of its biomarkers, rhythmic masticatory muscle activity (RMMA), remains elevated across ages. Obstructive sleep apnea (OSA) is associated with the brief and repetitive pause of breathing (apnea) and with transient reduction in oxygen (hypoxia). OSA is observed at all ages and in about 50% of older individuals with a male preponderance. SRB clinical assessment is based on self-reporting of tooth grinding sound, awareness of clenching, jaw pain or headache, and clinical observation of tooth damage. OSA clinical assessment is based on sleepiness and fatigue, snoring, sleep quality, and awareness of breathing cessation, plus clinical examination of anatomical factors (e.g., obesity, retrognathia, large tonsil, macroglossia), age, gender, and body mass. Although the literature does not support association or causality between these two conditions, the co-occurrence is reported in about 30%-50% of adults. To confirm a diagnosis of co-occurring SRB and OSA, home sleep testing (HST) may be indicated. A sleep test is performed using electromyography (EMG) of jaw muscle (masseter or temporalis) and cardio-respiratory variables (e.g., air flow, respiratory effort, oxygen level, heart rate). The management of co-occurring SRB and OSA for individuals with prosthodontic needs is challenging to prevent compromising the oro-pharyngeal space and breathing efficiency. OSA treatment in the presence of SRB includes continuous positive airway pressure (CPAP) use alone or with an occlusal splint or mandibular advancement device (MAD). In addition, the following may be considered: supine sleep correction device, myofuncional therapy, medications, and surgeries. All have limitations and risks. Individual variability suggests that phenotyping is mandatory to select the most efficient and personalized treatment.

Characteristics of clinical descriptive variables and polysomnographic findings of catathrenia.

Catathrenia has been classified as a sleep-related breathing disorder variant in the third edition of the International Classification of Sleep Disorders, but its validity remains unverified. We analyzed the clinical descriptive variables and polysomnographic findings of catathrenia and discussed the similarities and differences to those of obstructive sleep apnea (OSA), non-REM parasomnias, and sleep bruxism (SB). A retrospective analysis was conducted on 47 patients diagnosed with nocturnal groaning through polysomnography. We examined sex, body mass index, age at symptom onset, weekly symptom frequency, and presence/absence of comorbidities, including OSA, periodic limb movement disorder, non-REM parasomnia, and SB. The groaning event (GE) index was calculated according to sleep position and sleep stage. The distribution of patients with catathrenia did not show sex difference (male/female = 20:27), body mass index was 20.6 ± 3.0 kg/m2, and age of onset was 18.2 ± 7.4 years. The GE index was higher in stages N1 and R than in stage N3 and in the supine position than in the lateral position. There were no cases complicated with non-REM parasomnia, but the complication of SB was observed in 30% of the participants, and SB events appeared immediately before or during the interictal period of the GE episodes in these cases. Given the clinical background, posture- and sleep stage-dependent appearance of GEs, and the relatively high complication rate of SB, catathrenia pathogenesis may be heterogeneous or comprise elements of different sleep disorders.

Obstructive sleep apnoea, sleep bruxism and gastroesophageal reflux - mutually interacting conditions? A literature review.

The purpose of the present manuscript is to provide an overview for researchers and clinicians summarizing the knowledge concerning the relationship between some of the main sleep-related conditions of dental interest: sleep bruxism (SB), obstructive sleep apnoea (OSA) and gastroesophageal reflux disease (GERD). Starting with the discussion of the evolving current knowledge on SB, the interconnections are discussed. Most of the available literature focused on the possible relationship between OSA and SB, but a clear pathophysiological connection or temporal relationship has not been identified. Despite the paucity of data on the possible commonalities, SB, OSA and GERD constitute a complex network of conditions that may affect the clinical and research dental practice, and they are rarely found in isolation. In this scenario, the key role of dental practitioners as sentinel in the case of these sleep-related conditions is important, thanks to their ability and the knowledge to identify signs, symptoms and risk factors that are signs of ongoing sleep-related conditions. Thus, dental practitioners are recommended to view bruxism as a potential gateway to medicine.

A IMPORTÂNCIA DO DIAGNÓSTICO PRECOCE DO BRUXISMO DO SONO INFANTIL

This study addresses the importance of early diagnosis of pediatric sleep bruxism, a condition characterized by the involuntary grinding or clenching of teeth, which can occur during sleep or while awake. The objective of the study is to highlight the relevance of early detection of this dysfunction to prevent damage to the stomatognathic system and improve the quality of life of affected children. The methodology adopted was an integrative literature review, involving the search for scientific articles in the SCIELO, PUBMED, and LILACS databases, focusing on studies published between 2015 and 2024. The study selected articles focusing on risk factors, diagnosis, and treatment of pediatric bruxism. The results indicate that early diagnosis, combined with a multidisciplinary approach, is essential to mitigate the effects of the condition, such as dental wear and temporomandibular joint dysfunctions. Furthermore, effective treatment involves a combination of dental, psychological, and behavioral interventions.

Reliability and Educational Suitability of TikTok Videos asa Source of Information on Sleep and Awake Bruxism: ACross-Sectional Analysis.

TikTok contains many videos about bruxism that may help raise the level of awareness on the topic. However, the quality of these videos' information represents the greatest concern. The present cross-sectional analysis aimed to systematically assess the reliability and educational suitability of TikTok videos as a source of information on bruxism. TikTok was searched for relevant videos uploaded until 6 March 2024, using the hashtags #bruxism, #grindingteeth and #jawclenching. Independent pre-calibrated operators conducted video inclusion and data collection, noting videos' characteristics, source, popularity, content, reliability (assessed through the DISCERN scoring system) and educational value (assessed through the Global Quality Score [GQS]). The Kruskal-Wallis test was adopted to compare videos from different sources. Videos with low and high educational value were compared using the Mann-Whitney U-test. Tests were considered significant when the p-value was < 0.05. A total of 105 bruxism videos were analysed. Most videos covered bruxism management and clinical features, and more than 60% were uploaded by healthcare professionals. According to the DISCERN and GQS scoring, the videos' reliability and educational value were judged to be very poor and low, respectively, but on average they were higher for videos uploaded by healthcare professionals compared to those uploaded by laypeople. When comparing videos with high educational value to those with low educational value, differences were found in popularity, content and reliability. The present results suggest the need for greater control of information disseminated on social media to fulfil its potential role in educating laypeople about bruxism.

Genetic polymorphisms and bruxism: A scoping review

BackgroundRecent studies have highlighted the multifactorial nature of bruxism, with behavioral, psychosocial, and physiological factors, including genetic predisposition, contributing to its development. However, the role of genetic markers in determining susceptibility to bruxism remains poorly understood, with limited studies offering significant findings. ObjectivesTo identify the current knowledge to investigate the susceptibility of genetic markers for sleep (SB) and/or awake bruxism (AB). Materials and methodsSeven electronic databases and two grey literature platforms were searched up to January 2024. We included studies that related different types of genes and/or genetic polymorphisms with different types of bruxism, regardless of age or sex of the participants. To be included the study must have described the form of detection of bruxism. ResultsA total of 21 reports were included. Of these, 16 were primary research reports. The remaining five articles consisted of four systematic reviews and a literature review incorporating a systematic mapping process, and network visualization. Within the pool of 16 primary study reports, seven focused on the association of genetic polymorphisms with both SB and AB, while seven concentrated solely on the association with SB. One primary study reported results related to probable AB and one article did not specify the bruxism type. Regarding all the studied genes and polymorphisms, significant association results were obtained for 15 polymorphisms from 11 different genes. Self-reported SB was associated with genes from the serotonergic (5HTR2A) and dopaminergic pathways (DRD2, DRD3, and ANKK1), as well as genes encoding enzymes (COMT and MMP9) and proteins (ACTN3 and ANKK1). Instrumentally reported SB was linked only to the reverse telomerase gene (TERT). Self-reported AB was associated with the ACTN3 and ANKK1 genes. ConclusionThis review identified 30 genes and 56 polymorphisms variations potentially associated with either SB or AB. However, few presented significant results regarding positive associations, mostly acting at neurotransmitter pathways. The authors recommend further studies to determine the susceptibility of genetic markers as a risk factor for bruxism.

Bruxism and Sleep Disorders in Patients Diagnosed With Depressive Disorder and Anxiety Disorder UsingAntidepressants.

To investigate the frequency of bruxism, factors associated with bruxism and sleep disorders in patients diagnosed with depressive disorder and anxiety disorder who use antidepressants. A total of 273 patients diagnosed with anxiety disorder or depression who had been using antidepressants for at least 1 month were included, along with 273 healthy control groups. The patient and control groups completed a sociodemographic data form, Epworth Daytime Sleepiness Scale (EDSS), Pittsburgh Sleep Quality Index (PSQI) and a bruxism questionnaire. Additionally, the clinician confirmed the diagnosis of bruxism through a clinical interview. Bruxism was detected in 73.3% of the patient group and 28.2% of the control group (p < 0.001). The most commonly used antidepressants among patients were selective serotonin reuptake inhibitors (SSRIs) such as escitalopram and sertraline. Within the patient group, individuals with bruxism had higher family history rates of teeth grinding (p = 0.034), PSQI scores (p < 0.001) and EDSS scores (p < 0.001) compared to those without bruxism. Positive correlations were found between the presence of bruxism and PSQI (p < 0.001) scores as well as EDSS scores (p < 0.001) in both the patient group and all participants. Regression analysis conducted on the entire sample revealed that family history rates of teeth grinding (p < 0.001), antidepressant use (p < 0.001) and PSQI score (p = 0.004) were associated with bruxism. The findings from this study suggest that a majority of patients diagnosed with depressive or anxiety disorders may experience bruxism, particularly those using SSRI-type antidepressants. Furthermore, individuals with bruxism may have poor sleep quality and excessive daytime sleepiness tendencies.

Effects on Sleep Bruxism Activity of Three Different Oral Appliances: One Year Longitudinal Cohort Study.

Different oral appliances (OAs) have been proposed to control sleep bruxism (SB) detrimental effects on the stomatognathic system. The aim of the study was to evaluate the effect of different OAs on SB activity and masticatory muscle activity (sMMA) measured by EMG. This longitudinal cohort study was conducted on 51 patients (21 M, 30 F, mean age 26,5 ± 3,5) suffering from SB diagnosed with a validated portable EMG-ECG holter and wearing different OAs: occlusal splints, functional appliance with metallic bites and clear aligners followed after 1 week, 1 month, 3 months, 6 months and 12 months from delivery. A control group of 16 non-treated SB patients (6 M, 10 F mean age 27,1 ± 1,4) was used as a reference. A multiple regression analysis was performed to estimate the differences between groups. The level of significance was set as P value <0,05. Occlusal splint reduced sleep bruxism index after 1 week, 3, 6 and 12 months from delivery while functional appliance only after 12 months. Occlusal splints reduced general phasic contractions only in the first week and sleep bruxism-related phasic contractions at 1 week, 3 and 6 months after delivery with no significant reductions after 12 months. Patients wearing clear aligners showed a reduction in general tonic contractions after 6 and 12 months. Resin and metal bites can reduce sleep bruxism index, while resin bites can reduce sleep bruxism-related phasic contractions. Clear aligners do not influence sleep bruxism index but can reduce tonic contractions.

The neural substrates of bruxism: current knowledge and clinical implications.

Bruxism is a complex orofacial behavior that can occur during sleep or wakefulness, characterized by the involuntary grinding or clenching of teeth, involving repetitive activity of the jaw muscles. Its etiology is multifactorial, influenced by genetic, psychological, physiological, and lifestyle factors. While the mild bruxism may not necessitate treatment, severe bruxism can lead to significant consequences, including tooth damage, jaw pain, fatigue, and headaches. The bruxism has been associated with medical conditions, such as stress, anxiety, sleep disorders, and various neurological disorders; however, the exact pathophysiology remains elusive. Although the central nervous system is strongly implicated in the development of bruxism, specific neural substrates have not yet been conclusively established. Furthermore, there is evidence to suggest that individuals with bruxism may exhibit neural plasticity, resulting in the establishment of distinct neural circuitry that control the jaw movements. The application of various neurophysiological techniques in both clinical and pre-clinical studies provides valuable insights into the neural mechanisms underlying bruxism. This review aims to comprehensively examine the current literature on the neural pathways involved in bruxism, with the goal of improving the clinical approach and therapeutics for this condition. A deeper understanding of the neural circuitry controlling bruxism holds the potential to advance future treatment approaches and improve the management of patients with bruxism.

Impact of malocclusion and oral habits on oral health-related quality of life and sleep disturbance in young adults : Across-sectional study.

The aim of this study was to investigate the impact of malocclusion and oral habits on oral health-related quality of life and sleep disturbance in young adults. Across-sectional study was conducted with asample of 213 young adults aged 18-30years. Dental occlusion data were assessed through clinical examination. Aquestionnaire was used to collect data on oral habits. Outcomes were collected using the Oral Health Impact Profile (OHIP-14) and Mini Sleep Questionnaire. Anterior open bite (adjusted odds ratio [OR] = 2.41, 95% confidence interval [CI] = 1.02-5.67, p = 0.044), swallowing disorders (adjusted OR = 2.39, 95% CI = 1.13-5.05, p = 0.022), and sleeping on hands were associated with anegative impact on oral health-related quality of life. Females (adjusted OR = 2.61, 95% CI = 1.10-6.17, p = 0.029), teeth grinding (adjusted OR = 2.78, 95% CI = 1.08-7.14, p = 0.034), biting lips or cheeks (adjusted OR = 4.28, 95% CI = 1.49-12.29, p = 0.007), and self-perception of need for orthodontic treatment (adjusted OR = 7.88, 95% CI = 2.12-29.30, p = 0.002) were associated as arisk for sleep disturbances. The findings suggest that oral habits and some types of malocclusions can impact oral health-related quality of life. In addition, sleep disturbances were associated with agreater need for orthodontic treatment and ahabit of grinding teeth in young adults.

Sleep Bruxism in Adults: A Comprehensive Review of Enduring but Evolving Issues for Clinicians

This review delves into the complex facets of sleep bruxism (SB), concentrating on its diagnosis, epidemiology, orofacial consequences, comorbidities including sleep disorders, and management strategies. Diverse studies have highlighted the difficulties associated with accurately diagnosing SB, the shifting perceptions surrounding it, variations in prevalence based on age and SB definitions, insights obtained from polysomnography, current knowledge on orofacial impact, and approaches to management. Notably, the association between SB and sleep disorders, especially obstructive sleep apnea, and its possible physiological roles are examined. This review underscores the necessity of a balanced appreciation for SB, accentuating the need for comprehensive evaluations and tailored management strategies. It emphasizes the continual reshaping of SB concepts and the critical need for further research to differentiate between physiological and pathological manifestations of SB, with the goal of optimizing treatment methods.

Exploring the Complex Relationship Between Primary Headache Types and Bruxism: Patterns, Mechanisms, and Implications

Objective: The present study aims to explore the relationship between primary headache types and bruxism and determine how these two conditions may affect each other. Material and Methods: A total of 97 cases who applied to the Neurology Polyclinic of our hospital during 01.07.2023-01.08.2023 were included in the study. A comprehensive questionnaire was applied to the participants. The diagnosis of headache was established based on the International Classification of Headache Disorders criteria; the American Academy of Sleep Medicine criteria were used for the diagnosis of sleep bruxism and the Research Diagnostic Criteria for Temporomandibular Disorders were employed for the diagnosis of awake bruxism. Results: Nineteen (19.6%) of the participants were male and 78 (80.4%) were female. Tension-type headache (TTH) was reported by 22 participants (22.7%), 30 participants had migraine-type headache (30.9%), and 45 participants (46.4%) comprised the healthy control group. Sleep bruxism was observed in 29 patients (29.9%), while 11 patients (11.3%) were diagnosed with awake bruxism. Higher rates of sleep bruxism and awake bruxism were seen in patients in the TTH group compared to those in the migraine group and the healthy control group (p