ZleepAnlystNet: a novel deep learning model for automatic sleep stage scoring based on single-channel raw EEG data using separating training.

Numerous models for sleep stage scoring utilizing single-channel raw EEG signal have typically employed CNN and BiLSTM architectures. While these models, incorporating temporal information for sequence classification, demonstrate superior overall performance, they often exhibit low per-class performance for N1-stage, necessitating an adjustment of loss function. However, the efficacy of such adjustment is constrained by the training process.

The effect of different pain characteristics on jaw functional limitations in patients with temporomandibular disorders.

Background: Patients with painful temporomandibular disorders (TMD) more often experience jaw functional limitations. The study of jaw functional limitations should be primarily focused on painful TMD.

Objectives: The impact of TMD pain characteristics (source, chronicity and intensity) on jaw functional limitations were evaluated using Jaw Functional Limitation Scale (JFLS).

Effect of 1% HO on Three Salivary Stress Biomarkers, Cortisol, Alpha-Amylase, and sIgA.

Background: Due to the COVID-19 pandemic, several associations worldwide have been recommending the use of 1% hydrogen peroxide solution as a preprocedural mouth rinse before dental treatments to reduce viral load in saliva. This protocol is also employed in stress studies, especially in the context of dental treatment that uses salivary biomarkers as an indicator. However, the effect of 1% hydrogen peroxide as mouth rinse on salivary biomarkers remains unclear.

The association of self-reported awake bruxism and sleep bruxism with temporomandibular pain and dysfunction in adult patients with temporomandibular disorders.

Objective: To investigate the association of the severity of temporomandibular disorders (TMD) pain and dysfunction with the frequency of self-reported awake bruxism (AB), sleep bruxism (SB), and stress in an adult TMD-patient population.

Materials And Methods: This cross-sectional study included 237 TMD patients based on the Diagnostic Criteria for TMD. Age, sex, frequency of self-reported AB and SB, and stress were included as independent variables.

Awake and Sleep Oral Behaviours in Patients With Painful Temporomandibular Disorders.

Objectives: The aim of this research was to explore the oral behaviours exhibited by individuals with and without temporomandibular disorders (TMD) pain, and with various pain characteristics; and to determine which oral behaviour is correlated with painful TMD.

Methods: 328 patients with TMD who visited Orofacial Pain Clinic were included in this retrospective cross-sectional study. The patients were categorised into 2 groups-painful TMD and non-painful TMD-based on pain status; their other pain characteristics were recorded.

Effect of GuttaClear on Postoperative Pain After Root Canal Retreatment: A Randomized Clinical Trial.

Objective: The aim of this study was to evaluate postoperative pain after non-surgical root canal retreatment with or without GuttaClear.

Methods: Sixty participants were randomly distributed in this non-inferiority trial into two parallel singleblinded experimental groups (Group1: non-solvent, Group2: solvent). After root canal retreatment, the participants completed questionnaires using direct (numerical rating scales) and indirect (number of analgesics taken) measurements of postoperative pain at immediate, 6, 12, 24, 48, and 72 h post-retreatment.

Accuracy of the Intraoral Scanner for Detection of Tooth Wear.

Objective: The aim of this work was to study the accuracy of the intraoral scanner for detection of tooth wear in natural teeth by using micro-computed tomography (micro-CT) as a gold standard.

Materials And Methods: Twenty premolars were prepared, fixed in acrylic blocks, and scanned with an intraoral scanner (iTero Element® 2) and micro-CT for baseline reference images before artificial tooth wear induction. The samples were then scrubbed with abrasive sandpaper 20 times and scanned with the intraoral scanner.

Bite force of patients with tooth pain.

Objectives: The aim of this study was twofold: (i) to measure the bite force of healthy adults and patients with tooth pain and (ii) to evaluate the influence of bite force and age on tooth pain and both genders. It is hypothesized that patients with tooth pain would have lesser bite forces as compared to healthy individuals. MATERIAL AND METHODS: Two groups of participants were, the first group comprised 18 healthy adults (9 males, 9 females), while the second group comprised 18 patients with tooth pain (9 males, 9 females), recruited from the Faculty of Dentistry, Universiti Teknologi MARA.

Effect of post-polymerization with autoclaving treatment on monomer elution and mechanical properties of 3D-printing acrylic resin for splint fabrication.

Objectives: To evaluate the effect of post-treatment autoclaving on monomer elution and mechanical properties of three-dimensionally (3D) printed resin for splint fabrication.

Methods: Photopolymer resin specimens (Dental LT Clear) were 3D-printed and processed according to the manufacturer's instructions. The specimens were randomly divided to different post-treatment protocols: water storage, autoclaving at different temperatures (121 °C or 132 °C), times (4 or 30 min) and no treatment as a control.

Temporomandibular joint findings in CBCT images: A retrospective study.

Objective: To evaluate radiological characteristics of the temporomandibular joint.

Methods: Retrospective study of images of 20-80 year-old patients. Two independent clinicians analyzed the images, and a radiological score was obtained, considering sclerosis, osteophites, cysts, and erosion.

Influence of functional and esthetic expectations on orthodontic pain.

Objectives: To investigate the effect of orthodontic treatment outcome (OTO) expectations on the level of pain intensity experienced after orthodontic elastomeric separation (OES).

Materials And Methods: A total of 100 orthodontic patients (74 female and 26 male, age 14 years and above) from the Faculty of Dentistry, Mahidol University were enrolled. Before OES, questionnaires were administered to obtain patients' expectations regarding various aspects of OTO as well as OES pain expectations.

Understanding the mandibular condyle morphology on panoramic images: A cone beam computed tomography comparison study.

Objective: To compare variations in condylar morphology (CM) in panoramic images with those demonstrated in cone beam computed tomography (CBCT) and to investigate factors related to the variations.

Methods: Three thousand panoramic images were analyzed for CM classification and relationship between CM and patient factors. Then, CM of 178 cases of panoramic and CBCT images were compared.

Physical, psychological and socio-demographic predictors related to patients' self-belief of their temporomandibular disorders' aetiology.

Background: The aetiology of temporomandibular disorders (TMDs) has been widely discussed in literature, but little is known about patients' self-belief of their TMD aetiology.

Objective: For six categories of self-believed aetiology of the TMD complaint (viz., occlusal factors, physical trauma, emotional stress, deep pain input, parafunctions and unknown), associations with physical, psychological and socio-demographic predictors were assessed.

Association of radiographic and clinical findings in patients with temporomandibular joints osseous alteration.

Objectives: To characterize the relationship between radiographic and clinical characteristics of patients with temporomandibular joint (TMJ) osseous changes.

Materials And Methods: TMJ cone beam computed tomography (CBCT) images of 73 patients (142 joints) with changes in osseous component of TMJ were included in this study. Based on both clinical and radiographic findings, each TMJ was diagnosed as either non-degenerative joint disease (non-DJD) or degenerative joint disease (DJD) according to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) criteria.

Excessive daytime sleepiness in temporomandibular disorder patients.

: To investigate the relationship between excessive daytime sleepiness (EDS) and associated factors in temporomandibular disorder (TMD) patients. : Medical records of 350 TMD patients were collected. The EDS status was measured by Epworth Sleepiness Scale (ESS).

Dental treatment as perceived etiology of temporomandibular disorders.

: To characterize patients who believe their temporomandibular disorders (TMD) symptoms are caused by their prior dental treatment. : A sample of 337 patients were selected and classified into dental treatment-related and non-dental treatment-related groups, according to their personal belief of their TMD etiology. The relationship between patients' perceived etiology and patient characterization was analyzed using Chi-square and -test.

Orofacial pain and symptoms of temporomandibular disorders in Finnish and Thai populations.

Objective: Cultural or ethnic factors may play an important role in subjects' pain reports. The aim of the study was to compare the prevalence of orofacial pain symptoms between Finnish and Thai populations.

Materials And Methods: The Finnish study population comprised the Northern Finland Birth Cohort 1966, of which 5696 subjects participated in the present study.

Is low level laser effective for the treatment of orofacial pain?: A systematic review.

The aim of this study was to assess the effectiveness of low level laser therapy (LLLT) as a treatment for orofacial pain considering the methodology of the studies. PubMed (1983-2009) and one conference proceeding were searched. Studying quality was assessed using a validated instrument.

Occlusal scheme in a group of Thais.

Purpose: To study the distribution of various occlusal schemes as well as associated static occlusal relationship among Thais.

Materials And Methods: The subjects' occlusal schemes on the left and right sides were classified as canine protected occlusion, group function, or unclassified according to the definition from Glossary of Prosthodontic Terms (8(th) edition). In addition, the presence of occlusal interferences during mandibular excursions were recorded.

Xerostomia, hyposalivation, and oral microbiota in type 2 diabetic patients: a preliminary study.

Background And Objective: Mouth dryness is one of the major problems that can lead to several oral diseases such as dental caries, periodontitis and oral infection. Mouth dryness has also been associated with type 2 diabetes mellitus (DM). The objective of the present study was to investigate the prevalence of xerostomia (feeling of mouth dryness), hyposalivation (the reduction of saliva), and oral microbiota in Thai patients with type 2 DM.

Altered ATP release and metabolism in dorsal root ganglia of neuropathic rats.

Background: Adenosine 5'-triphosphate (ATP) has a ubiquitous role in metabolism and a major role in pain responses after tissue injury. We investigated the changes in basal and KCl-evoked ATP release from rat dorsal root ganglia (DRG) after peripheral neuropathy induction by unilateral sciatic nerve entrapment (SNE).

Results: After SNE, rats develop long-lasting decreases in ipsilateral hindpaw withdrawal thresholds to mechanical and thermal stimulation.

The academic environment: the students' perspective.

Dental education is regarded as a complex, demanding and often stressful pedagogical procedure. Undergraduates, while enrolled in programmes of 4-6 years duration, are required to attain a unique and diverse collection of competences. Despite the major differences in educational systems, philosophies, methods and resources available worldwide, dental students' views regarding their education appear to be relatively convergent.

Bidirectional alterations of hippocampal cannabinoid 1 receptors and their endogenous ligands in a rat model of alcohol withdrawal and dependence.

Background: The hippocampus is strongly implicated in memory processes and contains high concentrations of both cannabinoid receptors and their endogenous ligands. Chronic alcohol consumption impairs a variety of cognitive and performance tasks, including memory and learning. As the activation of cannabinoid receptors by their endogenous ligands modulates hippocampal neurotransmission, we hypothesized that the impaired memory and learning in alcoholism may be due to alterations in the hippocampal endocannabinoid system.