Evaluation of sleep bruxism by three-dimensional analysis of the deformation of acrylic resin occlusal appliances


Development of primary treatment for temporomandibular disorders: The Japanese Society for the Temporomandibular Joints evidence-based clinical practice guidelines, 2023 edition


顎口腔機能における感覚に関する研究手法

顎口腔機能における感覚に関する研究手法

The Journal of Japanese Society of Stomatognathic Function


Three-dimensional morphological changes in occlusal appliances under dry and wet conditions


顎運動検査の意義と今後の方向性

顎運動検査の意義と今後の方向性


Proposals and evaluations for the enhancement of CAD/CAM education


Efficacy of initial conservative treatment options for temporomandibular disorders: A network meta-analysis of randomized clinical trials

This network meta-analysis (NMA) of randomized controlled trials (RCTs) aimed to identify effective initial conservative treatment strategies for patients with temporomandibular joint disorders (TMD). RCTs comparing treatment options for TMD published between January 2000 and July 2021 were retrieved from the databases of PubMed and Embase via a comprehensive electronic search. Patients diagnosed with myalgia (muscle pain) or arthralgia (joint pain) according to pain-related Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) and the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) were eligible for inclusion. Twelve treatment options and a placebo were included in the mutual comparisons. The risk of bias was assessed using Risk of Bias 2.0. Forest plots of direct comparisons between individual studies were created using MetaInsight. NMA was performed using R statistical software (netmeta). Twenty-four RCTs involving 1336 patients assessing pain and 12 RCTs involving 614 patients assessing maximal mouth opening were identified. Low-level laser therapy (standard mean difference [SMD]: -2.12, 95% confidence interval [CI]: -3.18, -1.06), self-exercise (SMD: -1.51, 95% CI: -2.82, -0.2), and stabilization splints (SMD: -1.16, 95% CI: -2.02, -0.29) were effective in improving pain; however, the certainty of evidence was very low. Self-exercise (SMD: 0.71, 95% CI: -0.58, 2.01), stabilization splints (SMD: 0.65, 95% CI: -0.09, 1.39), and low-level laser therapy (SMD: 0.63, 95% CI: -0.34, 1.6) were effective in improving maximal mouth opening; however, the certainty of evidence was very low. Stabilization splints, self-exercise, and low-level laser therapy may be effective in the initial treatment of TMD.


Effect of aromatherapy on sleep bruxism: A randomized double-blind crossover controlled tria

睡眠時ブラキシズムに対するアロマテラピーの効果 ―無作為化二重盲検クロスオーバー比較試験―


Associations between sleep bruxism, oral wetness, and salivary flow: A quantitative analysis


Effect of Carbonated Water Swallowing Volume on the Acoustic Characteristics of Swallowing Sounds in Healthy Adult Subjects

成人健常者における炭酸水嚥下量が嚥下音の音響特性に与える影響

Carbonated beverage-based sensory stimulation affects swallowing movements and contributes to safe swallowing. Although the effects of carbonated beverages on swallowing movements have been reported using swallowing sounds, small amounts of swallowing have not been investigated. In this study, we extracted the acoustic characteristics from swallowing sounds acquired when 15 healthy adults swallowed 3mL, 5mL, and 10mL of water or carbonated water five times each. Consequently, we confirmed that the acoustic features of the swallowing sound in time domain, i.e., peak intensity and energy, marginally significantly reduced when swallowing carbonated water compared to water, regardless of the quantity. Even with a mouthful volume of 3mL of carbonated water, this trend was confirmed. Therefore, the potential evaluation of swallowing and rehabilitation through the swallowing of small amounts of carbonated water, which has a lower risk of aspiration for dysphagia, was considered.

Transactions of the Japanese Society for Medical and Biological Engineering


Essence of diagnosis and management of sleep bruxism


Mechanism and clinical use of botulinum neurotoxin in head and facial region

Botulinum neurotoxin (BoNT) is a biological toxin produced by Clostridium botulinum. BoNT is a potent toxin extensively used in therapeutic interventions. This review provides an updated overview of the mechanisms of action and clinical applications of BoNT in head and facial region. MEDLINE/PubMed searches were conducted using the terms "botulinum neurotoxin" and "dentistry" along with a combination of other related terms. In addition, studies were manually selected from reference lists of the selected articles. The Food and Drug Administration in the United States initially approved BoNT to treat strabismus, blepharospasm, and hemifacial spasms. The use of BoNT in dermatology and cosmetics has been widely established and has created a revolution in these fields. Over the years, its applications in various medical specialties have expanded widely. Owing to its safety, efficacy, and long duration of action, it is well-accepted by patients. BoNT/A and BoNT/B are widely used in clinical practice. Several off-label uses of BoNT in the dental fraternity have yielded promising results. We have elaborated on the speculated mechanism of action, dosage, effective sites of injection, and adverse effects of each therapeutic application. The various clinical indications for BoNT include bruxism, myofascial pain, temporomandibular joint dislocation, hemifacial pain, orofacial dystonia, facial paralysis, chronic migraine, and trigeminal neuralgia. BoNT is a safe treatment that can be used effectively, provided that the clinician has adequate knowledge regarding the mechanism, injection techniques, and local and systemic side effects and that it is administered cautiously and purposefully.


First Step to Understand Jaw Movement -For the CAD/CAM Era-

顎運動を攻略するための第一歩 CAD/CAM 時代に向けて―


睡眠歯科の用語集 第2版 日本睡眠歯科学術用語部会


Survey of oral maxillofacial injury experiences and sports mouthguard use in wakeboarders

International Journal of Sports Dentistry


Physical load while using a tablet at different tilt angles during sitting and standing

Few standards and guidelines to prevent health problems have been associated with tablet use. We estimated the effects of posture and tablet tilt angle on muscle activity and posture in healthy young adults. Seventeen healthy young adults (age: 20.5 ± 3 years) performed a cognitive task using a tablet in two posture (sitting and standing) and tablet tilt angle (0 degrees and 45 deg) conditions. Segment and joint kinematics were evaluated using 16 inertial measurement unit sensors. Neck, trunk, and upper limb electromyography (EMG) activities were monitored using 12 EMG sensors. Perceived discomfort, kinematics, and EMG activities were compared between conditions using the Friedman test. The perceived discomfort in the standing-0 deg condition was significantly higher than in the remaining three conditions. Standing posture and tablet inclination significantly reduced the sagittal segment and joint angles of the spine, compared with sitting and flat tablet conditions. Similarly, standing posture and tablet inclination significantly reduced EMG activities of the dorsal neck, upper, and lower trunk muscles, while increasing EMG activity of shoulder flexors. Standing posture and tablet inclination reduced the sagittal flexion angle, and dorsal neck, upper, and lower trunk muscle activities, while potentially increasing the muscle activity of arm flexors.


The relationship between stomatognathic function and posture and movement: Generation of evidence through collaboration between dentistry and physical therapy

顎口腔機能と姿勢・運動制御との関連性:歯科と理学療法の協働によるエビデンス創出に向けて

The Journal of Japanese Society of Stomatognathic Function


Longitudinal comparison between flipped classroom and team-based learning in a prosthodontic class

Active learning is a concept that allows students to study and learn actively by themselves to get knowledge. There are several methods of active learning, including flipped classroom (FC) and team-based learning (TBL). In FC, students are required to study before classes. In TBL, students also study before class, take individual readiness assurance test (iRAT) and team readiness assurance test (tRAT), then discuss group assignment projects (GAPs) during class. The purpose of this study was to compare the effectiveness between FC and TBL.
 The effectiveness of FC and TBL was assessed from the results of the term-end examinations, questionnaires and practice examinations. To check the difficulty of the term-end examinations, control dentists took the same examinations and we calculated the equating score with item response theory.
 Statistical analysis showed that the correct answer rate in term-end examinations was significantly different in comparison with the time of the trial, and for the participants (students and dentists). The term-end examination score of FC and TBL did not show a statistical difference. The student questionnaire showed that TBL had higher scores than FC on various factors such as student positive attitude, preparation, ingenuity of teacher and achieving the class goals. The crown & bridge score from the practice examination of 6th-year students who had FC + TBL were constantly higher than the Japanese national average score. The identification index of FC and TBL did not show the statistical difference and there was no statistical difference on item response theory between FC and TBL.


Pain sensitivity increases with sleep disturbance under predictable chronic mild stress in mice


Effects of sitting posture and jaw clenching on neck and trunk muscle activities during typing

Neck pain is one of the most common musculoskeletal complaints. Evidence suggests that increased activities of neck and trunk muscles are one of the mechanisms related to neck pain. Jaw clenching and sitting posture may modulate the muscle activity in neck and trunk muscles during typing. The present study aimed to assess the effects of different postural positions and clenching conditions on neck and trunk muscle activities. Thirteen healthy adults (39.8 ± 5.0 years) performed computer typing tasks in four conditions (two postural positions [upright vs slouched] and two jaw clenching conditions [clenching vs non-clenching]). Integrated surface electromyography (iEMG) was measured in sternocleidomastoid (SCM), upper trapezius (uTP) and middle trapezius (mTP) muscles and compared between conditions. The Friedman and Wilcoxon signed-rank tests with Bonferroni's corrections were used to estimate the condition-specific differences in the iEMG data. The statistical significance level was set at 5%. In both postural positions, iEMG was significantly greater under the jaw clenching than under the non-clenching condition (χ = 21.700, P < .01). Under both jaw clenching conditions, iEMG was significantly greater in the slouched than in the upright postural position (χ = 23.182, P < .01). No significant differences in iEMG were seen across conditions (χ = 5.018, P = .10). Sitting posture and jaw clenching appear to influence activities of different muscles.


インドネシアの歯学部における学部教育

インドネシアの歯学部における学部教育

The Journal of Japan Association of Oral Rehabilitation

日本口腔リハビリテーション学会雑誌


Immediate Effect of Masticatory Muscle Activity with Transcutaneous Electrical Nerve Stimulation in Muscle Pain of Temporomandibular Disorders Patients

Transcutaneous electrical nerve stimulation (TENS) is a non-invasive treatment modality for acute and chronic pain. However, little information for muscle activity is available on the immediate effects of TENS in masticatory muscle pain related to temporomandibular disorders (TMDs). The present study aimed to evaluate the immediate effects of TENS treatment on TMD-related muscle pain. Thirty-six patients with TMD-related muscle pain and 39 healthy subjects served as TMD and control groups, respectively. For objective evaluations, maximum mouth opening, and maximum bite force were measured before and after TENS. The pain intensity was assessed according to a 100-mm visual analog scale (VAS). TENS was applied to painful muscles for 20 min with frequencies of 100-200 Hz. The treatment outcome was evaluated using Global Rating of Change (GRC) scales. In the TMD group, VAS values significantly decreased after TENS. Although there was significant increase in the maximum mouth opening after TENS for only TMD group, the maximum bite force of both groups was significantly greater after TENS. According to GRC scales, one patient with TMD-related muscle pain expressed negative feelings after TENS. Conclusively, TENS treatment might quickly relieve pain in masticatory muscles and improve masticatory functions in patients with TMD-related muscle pain.


ナイトガード使用に関する検討


Chronic Neuroleptic-Induced Parkinsonism Examined with Positron Emission Tomography

Neuroleptic drug-induced parkinsonism (NIP) is a leading cause of parkinsonism, particularly in aging. Based on abnormal dopamine transporter scan results, individuals displaying chronic NIP are often diagnosed with Lewy-body Parkinson's disease (PD), but this assumption needs further substantiation. To quantitate the profile of striatal dopaminergic nerve terminal density in NIP relative to PD. We used the positron emission tomography ligand [ C](+)-dihydrotetrabenazine targeting vesicular monoamine transporter type 2 (VMAT2) binding sites and collected various clinical parameters (motor ratings, olfaction, polysomnography to document rapid eye movement sleep muscle activity, quantitative sensory testing for pain thresholds) possibly predicting binding results in patients older than age 50 living with schizophrenia spectrum disorders under long-term stable antipsychotic drug treatment, with (N = 11) or without (N = 11) chart documention of chronic NIP, and compared them to healthy volunteers (N = 11) and others medicated for PD (N = 12). Striatal VMAT2 binding was dichotomous in the NIP group between those with spared (N = 5) or low (N = 6) PD-like values. Striatal binding reduction in the low VMAT2-NIP group was asymmetric without the gradient of maximal involvement in the posterior putamen typical of PD. Anosmia was the only nonmotor parameter measured matching the abnormal striatal VMAT2 binding status. These preliminary observations suggest that striatal VMAT2 binding is abnormal in a fraction of chronic NIP cases and differs in spatial distribution from PD. The possibility of a drug-induced axonopathy and resultant synaptopathy, as well as the evolution of the binding deficit, warrant further longitudinal studies in a large cohort. © 2020 International Parkinson and Movement Disorder Society.


Association of masticatory muscle activity with sleep arousal and other concomitant movements during sleep

This study aims to verify the associations among sleep bruxism (SB), sleep arousal (SA) and concurrent body movements. Subjects underwent a standard overnight polysomnography test and audio-video recordings. Sleep quality was evaluated according to the Rechtschaffen and Kales criteria, while SA was determined as per the American Sleep Disorders Association criteria. Analyses were performed by an external institution after masking of the subjects' information. SB was assessed based on the presence/absence of rhythmic masticatory muscle activity (RMMA) episodes, which were identified by using electromyography of the masseter muscle. The observed simultaneous movements included lower leg movement (LLM), swallowing, face scratching, head movement, body movement, eye blinking, coughing, licking, sighing, body scratching, lip sucking, somniloquy and yawning. The LLM was determined visually, as well as through an increase in the tibialis electromyogram signal. Other movements were visually assessed using audio-video recordings. The incidences of all the simultaneous movements were compared between RMMA with intercurrent SA (SAwRMMA; RMMA episode derived from a masseter electromyogram showing more than 10% of maximum voluntary contraction) and SA without RMMA (SAw/oRMMA). Fourteen subjects were included in this study (females/males: 4/10, mean age: 31.5 ± 5.7 years). Among these, LLM, swallowing, body movement, licking, body scratching and lip sucking were frequently observed in SAwRMMA episodes than in SAw/oRMMA episodes, significantly. However, the non-specific simultaneous movements were higher observed in SAw/oRMMA episodes than that in SAwRMMA. Our results suggest that SB is concurrently activated with LLM in relation to arousal.


Changes in oxygen and carbon dioxide in the genesis of sleep bruxism:a mechanism study

Rhythmic masticatory muscle activity (RMMA), a biomarker of sleep bruxism (SB), has been associated with mild hypoxia and/or big breaths in some adults with non-sleep-disordered breathing. The purpose of this study was to investigate that concurrent oxygen and carbon dioxide fluctuations are among the physiological variables that contribute to RMMA onset. Twelve subjects (5 female, 7 male, mean age: 43 ± 11) underwent polysomnography recording in a sleep laboratory. RMMA index and apnea-hypopnea index were calculated. Oxygen saturation (SpO) was estimated by finger pulse oximeter and end-tidal CO (ETCO) by nasal airflow cannula before and after RMMA onset. Given the expected response time delay between actual arterial hypoxemia and fingertip pulse detection, we adjusted the SpO desaturation onset to the onset of masseter muscle activity using a 17 s criterion based on ETCO shifts. SpO was slightly but significantly lower than at baseline (max: -0.6%) in the 6-4 s before RMMA onset and significantly higher in the 6-18 s after onset (0.9%; p < 0.05). Although ETCO before RMMA onset did not differ from baseline, it decreased at 8-10 s after onset (-1.7 mmHg: p < 0.05). No changes in SpO or ETCO in relation to RMMA onset reached a critical clinical threshold. The mild transient hypoxia observed before RMMA onset was not associated with a change in ETCO The mild and brief oxygen fluctuations before RMMA onset may reflect a physiological response that seems to have little influence on SB genesis.


特別養護老人ホーム入所者における顎関節脱臼の実態調査

特別養護老人ホーム入所者における顎関節脱臼の実態調査

Journal of the Japanese Society for the Temporomandibular Joint


Investigation of behavioural factors which vary occlusal contact in Japanese dental students

The Journal of Japanese Society of Stomatognathic Function


Technology acceptance model in the use of a patient management software in a dental school in the Philippines

IOSR Journal of Dental and Medical Sciences


Validity of peer evaluation for team-based learning in a dental school in Japan

The aim of this study was to determine the validity of peer evaluation for team-based learning (TBL) classes in dental education in comparison with the term-end examination records and TBL class scores. Examination and TBL class records of 256 third- and fourth-year dental students in six fixed prosthodontics courses from 2013 to 2015 in one dental school in Japan were investigated. Results of the term-end examination during those courses, individual readiness assurance test (IRAT), group readiness assurance test (GRAT), group assignment projects (GAP), and peer evaluation of group members in TBL classes were collected. Significant positive correlations were found between all combinations of peer evaluation, IRAT, and term-end examination. Individual scores also showed a positive correlation with group score (total of GRAT and GAP). From the investigation of the correlations in the six courses, significant positive correlations between peer evaluation and individual score were found in four of the six courses. In this study, peer evaluation seemed to be a valid index for learning performance in TBL classes. To verify the effectiveness of peer evaluation, all students have to realize the significance of scoring the team member's performance. Clear criteria and detailed instruction for appropriate evaluation are also required.


Effects of Custom-made Mouthguard Use on Physical Performance and Concentration

The International Journal of Sports Dentistry


Does sleep bruxism contribute to headache-related disability after mild traumatic brain injury? A case-control study.

To explore whether traumatic brain injury (TBI) patients have a higher prevalence of sleep bruxism (SB) and a higher level of orofacial muscle activity than healthy controls and whether orofacial muscle activity in the context of mild TBI (mTBI) increases the risk for headache disability. Sleep laboratory recordings of 24 mTBI patients (15 males, 9 females; mean age ± standard deviation [SD]: 38 ± 11 years) and 20 healthy controls (8 males, 12 females; 31 ± 9 years) were analyzed. The primary variables included degree of headache disability, rhythmic masticatory muscle activity (RMMA) index (as a biomarker of SB), and masseter and mentalis muscle activity during quiet sleep periods. A significantly higher prevalence of moderate to severe headache disability was observed in mTBI patients than in controls (50% vs 5%; P = .001). Although 50% and 25% of mTBI patients had a respective RMMA index of ≥ 2 episodes/hour and ≥ 4 episodes/hour, they did not present more evidence of SB than controls. No between-group differences were found in the amplitude of RMMA or muscle tone. Logistic regression analyses suggested that while mTBI is a strong predictor of moderate to severe headache disability, RMMA frequency is a modest but significant mediator of moderate to severe headache disability in both groups (odds ratios = 21 and 2, respectively). Clinicians caring for mTBI patients with poorly controlled headaches should screen for SB, as it may contribute to their condition.

Journal of Oral & Facial Pain and Headache


Individuals with pain need more sleep in the early stage of mild traumatic brain injury.

Hypersomnia is frequently reported after mild traumatic brain injury (mTBI), but its cause(s) remain elusive. This study examined sleep/wake activity after mTBI and its association with pain, a comorbidity often associated with insomnia. Actigraphy recording was performed for 7 ± 2 consecutive days in 56 individuals at one month post-mTBI (64% male; 38 ± 12 years), 24 individuals at one year post-mTBI (58% male; 44 ± 11years), and in 20 controls (50% male; 37 ± 12 years). Pain intensity and its effect on quality of life was assessed with a visual analogue scale and the Short Form Health Survey (SF-36) bodily pain subscale. Overall, few differences in sleep/wake patterns were found between mTBI patients and controls. However, higher percentages of mTBI individuals with moderate-to-severe pain were found to require more than eight hours of sleep per day (37% vs11%; p = 0.04) and to be frequent nappers (defined as those who took three or more naps per week) (42% vs 22%; p = 0.04) compared to those with mild or no pain at one month postinjury. Correcting for age and depression, The SF-36 score was found to be a significant predictor of sleep duration exceeding eight hours per day at one month (odds ratio = 0.95; 95% confidence interval = 0.92-0.99; p = 0.01), but not at one year post-mTBI. Pain and increased sleep need (in terms of hours per day or napping frequency) were found to co-exist in as much as 29% of mTBI patients at one month postinjury. Pain could be associated with more pronounced sleep need in about one-third of mTBI patients during early recovery. Unalleviated pain, found in more than 60% of mTBI patients, should therefore be looked for in all mTBI patients reporting new onset of sleep disorder, not only in those with insomnia.


Comparison between flipped classroom and team-based learning in fixed prosthodontic education


Mandibular movement during sleep bruxism associated with current tooth attrition

Observation of attrition patterns suggests that mandibular movement in sleep bruxism (SB) may be associated with current tooth attrition. The aim of this study was to confirm this phenomenon by investigating mandibular movement and masseter muscle activity. The subject was a healthy 21-year-old Japanese male. We recorded biological signals including mandibular movement and masseter electromyograms (EMGs) with a polysomnograph. Based on the EMG using Okura's criteria, SB events were classified into clenching, grinding and mixed types according to mandibular movement criteria. The close-open mandibular movement cycles (CO-cycles) during grinding and mixed type events were selected based on mandibular movement trajectories. Fifty-eight CO-cycles were selected in seven grinding and three mixed types. We found that SB mandibular movements associated with current tooth attrition. Excessive lateral movements (ELM) beyond the canine edge-to-edge position were observed in the closing (10.3%) and opening (13.8%) phases of the CO-cycle. Total masseter muscle activity was significantly higher during voluntary grinding (VGR) than during CO-cycle including ELM (working side: P=0.036, balancing side: P=0.025). However, in the middle and late parts of the opening phase, working side masseter muscle activity was significantly higher during CO-cycle including ELM than during VGR (P=0.012). In the early part of the closing phase, balancing side masseter muscle activity was significantly higher during CO-cycle including ELM than during VGR (P=0.017). These findings suggest that excessive forceful grinding during ongoing SB events may have caused canine attrition in this patient.


Investigation of Effect on Physical Performance and Concentration by Custom-made Mouthguard Use

International Journal of Sports Dentistry


The effect of splints on sleep bruxism : a preliminary study

スプリントによる睡眠時ブラキシズムに対する治療効果 : 予備的検討

The Journal of Japan Association of Oral Rehabilitation

日本口腔リハビリテーション学会雑誌


睡眠時ブラキシズムの基礎と最新の捉え方

睡眠時ブラキシズムの基礎と最新の捉え方


Masticatory performance alters stress relief effect of gum chewing

We evaluated the effects of gum chewing on the response to psychological stress induced by a calculation task and investigated the relationship between this response and masticatory performance. Nineteen healthy adult volunteers without dental problems undertook the Uchida-Kraepelin (UK) test (30min of reiterating additions of one-digit numbers). Before and immediately after the test, saliva samples were collected from the sublingual area of the participants. Three min after the UK test, the participants were made to chew flavorless gum for 3min, and the final saliva samples were collected 10min after the UK test. The experiment was performed without gum chewing on a different day. Masticatory performance was evaluated using color-changing chewing gum. Salivary CgA levels at immediately and 10min after the UK test were compared with and without gum chewing condition. Two-way repeated measures analysis of variance revealed significant interaction between gum chewing condition and changes in CgA levels during post 10min UK test period. A significant correlation was found between changes in CgA levels and masticatory performance in all participants. Our results indicate that gum chewing may relieve stress responses; however, high masticatory performance is required to achieve this effect.


A preliminary investigation of reproducibility of EMG signals during daytime masticatory muscle activity using a portable EMG logging device

Journal of Electromyography and Kinesiology


Effects of team-based learning on fixed prosthodontic education in Japan

The aims of this study were to evaluate the quality of team-based learning (TBL) in prosthodontics education for fourth-year dental students at Tokushima University School of Dentistry and to compare this teaching method with traditional lecture-based delivery. Participants in the study were 36 students (22 males and 14 females) who attended the TBL-style fixed prosthodontics course. Ten 60-minute classes were held. The first three were traditional lecture-style classes and were followed by one class introducing the TBL style. The remaining six classes constituted the TBL-format fixed prosthodontics course. The effectiveness of TBL was evaluated through student questionnaires at the end of each class and the results of the term-end examination. The questionnaire revealed high student approval for TBL-style learning, and active group discussion among students during TBL was a key factor in these ratings. In the results of the term-end examination, there were significantly higher scores on the questions that covered TBL-taught material than those covering traditional lecture-taught topics. The results of this study suggest that TBL-style lecture was more effective than traditional-style lecture for teaching fixed prosthodontics and that TBL was a more efficient mode of delivering dental education than traditional lecture-based teaching.


Introduction and Effects of Team-Based Learning on Prosthodontic Education

歯科補綴学授業におけるTeam-Based Learningの導入とその効果

Team-Based Learning (TBL) was introduced into our prosthodontic education for thirdyear dental school students. Forty students (26 males and 14 females) of Tokushima University School of Dentistry attended the TBL-style fixed prosthodontic course. A total of fifteen classes (60 minutes each), which started with six conventional lecture-style classes followed by 8 TBL-style classes, were held. The effectiveness of TBL was evaluated with student questionnaires at the end of each class and with the results of the term-end examination. The results of the questionnaire on some questions and term-end examination exhibited higher score for the TBL. The results of this study showed that TBL-style classes were more effective than that of the conventional lecture-style classes for the fixed prosthodontic course.


Establishment of a method for measuring and analyzing various bio-information during a sequence of feeding : Development of a measuring system

摂食・咀嚼・嚥下過程における各種生体情報の記録解析法の開発 ―測定システムの開発―

日本口腔リハビリテーション学会雑誌


Development of a new method for understanding visually slight tooth movements with six-degree-of-freedom

歯の6自由度運動を視覚的に理解する手法の開発

日本口腔リハビリテーション学会雑誌


Mandibular Movement during Sleep Bruxism: Mandibular Position with Peak Masseter Muscle Activity

The Journal of Japan Association of Oral Rehabilitation


咀嚼困難を訴える閉塞性睡眠時無呼吸症患者に対する補綴症例

咀嚼困難を訴える閉塞性睡眠時無呼吸症患者に対する補綴症例


Study on Analysis of Jaw Movements during Nocturnal Bruxism Event

睡眠時ブラキシズム発現に伴う顎運動の解析法の検討

日本補綴歯科学会誌. 特別号, 社団法人日本補綴歯科学会学術大会プログラム・抄録集 = Program and abstracts, the ... scientific meeting of Japan Prosthodontic Society


部位特異性の顎口腔領域の音を視る

部位特異性の顎口腔領域の音を視る

The Journal of Japanese Society of Stomatognathic Function


The link between prosthodontics and sleep dentistry.


Response to the letter from Professor Helena Hachul and colleagues.


睡眠時ブラキシズムの咬筋活動と顎運動

睡眠時ブラキシズムの咬筋活動と顎運動