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https://www.readbyqxmd.com/read/28643823/-chewing-on-bruxism-diagnosis-imaging-epidemiology-and-aetiology
#1
F Lobbezoo, R Jacobs, A De Laat, G Aarab, P Wetselaar, D Manfredini
Since the publication of a special issue on bruxism of the NTvT in July 2000, consensus has been reached on bruxism's definition as a repetitive masticatory muscle activity that is characterised by clenching and/or grinding while awake (awake bruxism) or during sleep (sleep bruxism). As yet, however, no consensus exists about the diagnosis of bruxism: sufficient evidence to establish the reliability and validity of the commonly used techniques (self-report, clinical examination, imaging, electromyography, polysomnography) has not yet been produced...
June 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28637996/the-localization-of-calcitonin-gene-related-peptide-in-the-human-trigeminal-ganglion-and-masseter-muscle
#2
Yuri Azuma, Iwao Sato
The localization of calcitonin gene-related peptide (CGRP) is similar to that of a neurotransmitter which indicates masticatory muscle pain in the area of the masseter fascia. CGRP is released from the trigeminal ganglion (TG). The aim of this study was to analyze the distribution of CGRP in the fascia of the masseter muscle (FMM) and TG in a morphometric manner, with respect to the location and density of CGRP-immunopositive reaction fiber (CGRP-IRF). A higher number of the CGRP-IRF were mainly found located around elongated blood vessels and small nerves on the origin side of the middle zone FMM in the O group (presented with occlusion)...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28637604/cervical-flexion-rotation-test-and-physiological-range-of-motion-a-comparative-study-of-patients-with-myogenic-temporomandibular-disorder-versus-healthy-subjects
#3
Tzvika Greenbaum, Zeevi Dvir, Shoshana Reiter, Ephraim Winocur
BACKGROUND: Temporomandibular Disorders (TMD) refer to several common clinical disorders which involve the masticatory muscles, the temporomandibular joint (TMJ) and the adjacent structures. Although neck signs and symptoms are found with higher prevalence in TMD patients compared to the overall population, whether limitation of cervical mobility is an additional positive finding in this cohort is still an open question. OBJECTIVE: To compare the physiological cervical range of motion (CROM) and the extent of rotation during cervical flexion (flexion-rotation test, FRT) in people with TMD (muscular origin) and healthy control subjects...
February 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28623683/the-effects-of-unilateral-alloplastic-temporomandibular-joint-replacement-on-the-opposite-side-natural-joint-a-finite-element-analysis
#4
Burak Bekcioglu, Emel Bulut, Burcu Baş
PURPOSE: The purpose of this study was to evaluate the stress distribution on the temporomandibular joint (TMJ) prosthesis and contralateral natural TMJ with finite-element analysis. MATERIALS AND METHODS: A TMJ implant was used to create a 3-dimensional model with a computer. This model was integrated with a mandible model created with a computer by use of computed tomography images, similar to a real TMJ replacement procedure. Masticatory loads were applied to the model...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28621563/reduced-mastication-impairs-memory-function
#5
Y Fukushima-Nakayama, Takehito Ono, M Hayashi, M Inoue, H Wake, Takashi Ono, T Nakashima
Mastication is an indispensable oral function related to physical, mental, and social health throughout life. The elderly tend to have a masticatory dysfunction due to tooth loss and fragility in the masticatory muscles with aging, potentially resulting in impaired cognitive function. Masticatory stimulation has influence on the development of the central nervous system (CNS) as well as the growth of maxillofacial tissue in children. Although the relationship between mastication and cognitive function is potentially important in the growth period, the cellular and molecular mechanisms have not been sufficiently elucidated...
May 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28621267/site-specific-oral-cancers-are-different-biological-entities
#6
Sachin C Sarode, Gargi Sarode, Shankargouda Patil
One of the imperative features of the oral cavity is the presence of different areas, which are characterized by unique sets of tissue organization. These regions are divided into lining mucosa (buccal mucosa, labial mucosa, alveolar mucosa, mucosa lining the ventral surface of the tongue, floor of the mouth, and soft palate) and masticatory mucosa (hard palate, attached gingiva, and dorsal surface of the tongue).(1).
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28617401/-the-influence-of-teeth-morphology-on-bioelectrical-activity-of-masticatory-muscles
#7
I M Makeeva, Ya V Samokhlib, N Zh Dikopova
The aim of the study was to reveal correlation of dental morphology and bioelectric activity of masticatory muscles. The study included 76 young adults (47.4% females and 52.6% males) divided in 3 groups according to dental morphology features: intact teeth (26 patients), dental decay in fissures with intact cusps (25 patients), pronounced dental decay with varying degree of crown destruction (25 patients). Electromyography (EMG) was used to document the bioelectric activity (BEA) of temporal and masticatory muscles...
2017: Stomatologii︠a︡
https://www.readbyqxmd.com/read/28611725/multiparameter-electromyography-analysis-of-the-masticatory-muscle-activities-in-patients-with-brainstem-stroke-at-different-head-positions
#8
Chuyao Jian, Miaoluan Wei, Jie Luo, Jiayin Lin, Wen Zeng, Weitian Huang, Rong Song
The performance of the masticatory muscle is frequently affected and presents high heterogeneity poststroke. Surface electromyography (EMG) is widely used to quantify muscle movement patterns. However, only a few studies applied EMG analysis on the research of masticatory muscle activities poststroke, and most of which used single parameter-root mean squares (RMS). The aim of this study was to fully investigate the performance of masticatory muscle at different head positions in healthy subjects and brainstem stroke patients with multiparameter EMG analysis...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28600840/the-influence-of-oral-health-on-patients-food-perception-a-systematic-review
#9
REVIEW
Cindy Batisse, Guillaume Bonnet, Caroline Eschevins, Martine Hennequin, Emanuel Nicolas
Oral food perception depends on somato-sensory information that includes taste and can be modified by oral components and/or functions such as mastication. The purpose of this study is to describe the interplay between oral health, mastication and taste. A review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist was conducted on 615 publications found by both pubmed and backward research. Thirty-one studies have been included. The results showed that the decline in taste ability observed during the healthy aging process could be potentiated by the deterioration of oral health and poor oral hygiene...
June 10, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28598184/surface-electromyography-before-and-after-orthognathic-surgery-and-condylectomy-in-active-laterognathia-a-case-report
#10
F Cullati, A Mapelli, G Beltramini, M Codari, C L Pimenta Ferreira, A Baj, A B Giannì, C Sforza
BACKGROUND: Condylar hyperplasia is a rare bone disease characterised by excessive development of mandibular condyle, which can lead to the development of asymmetric facial deformity together with malocclusion, mandibular deviation, TMJ and masticatory musculoskeletal system dysfunction. There is not a treatment protocol universally accepted. In order to determine the correct management, treatment and intervention timing of these patients, morphological examinations should be coupled with functional assessments...
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28598182/masticatory-parameters-of-children-with-and-without-clinically-diagnosed-caries-in-permanent-dentition
#11
M S Kaya, S Akyuz, B Guclu, D Diracoglu, A Yarat
AIM: Mastication turns food into a bolus and prepares it for chemical digestion. Any condition affecting tooth structure and position may have an impact on mastication. The aim of this study is to compare masticatory performance (MP) and maximum bite force (MBF) between children with and without clinically visible caries in permanent first molars. MATERIALS AND METHODS: The study was conducted with 50 children in good general condition aged 12-14 years (25 girls, 25 boys) with no orthodontic/skeletal anomalies and no missing teeth due to dental trauma or extraction...
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28591339/oral-motor-and-electromyographic-characterization-of-adults-with-facial-fractures-a-comparison-between-different-fracture-severities
#12
Amanda Pagliotto da Silva, Fernanda Chiarion Sassi, Endrigo Bastos, Nivaldo Alonso, Claudia Regina Furquim de Andrade
OBJECTIVES: To characterize the oral motor system of adults with facial injuries and to compare the oral motor performance/function between two different groups. METHODS: An observational, descriptive, cross-sectional study was conducted in 38 patients presenting with facial trauma who were assigned to the Division of Orofacial Myology of a Brazilian School Hospital. Patients were divided into two groups: Group 1 (G1) consisted of 19 patients who were submitted to open reduction of at least one facial fracture, and Group 2 (G2) consisted of 19 individuals who were submitted to closed fracture reduction with maxillomandibular fixation...
May 2017: Clinics
https://www.readbyqxmd.com/read/28587727/-sleep-bruxism-in-children
#13
A Camoin, C Tardieu, I Blanchet, J-D Orthlieb
Bruxism is defined as repetitive activity of the masticatory muscles, characterized by clenching the teeth or teeth grinding and/or by tapping and swaying. This study investigated sleep bruxism. The etiology is multifactorial: mainly central (neuropathic disorder, anxiety) but also genetic and local (posture, mouth breathing). The diagnosis is based primarily on the anamnesis and examination of dental wear and progression over time (photos and dental castings). A diagnostic guide is proposed in this article...
June 3, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28586093/agreement-between-jaw-muscle-activity-measurement-with-portable-single-channel-electromyography-and-polysomnography-in-children
#14
Claudia Restrepo, Frank Lobbezoo, Eduardo Castrillon, Peter Svensson, Adriana Santamaria, Claudia Alvarez, Ruben Manrique, Daniele Manfredini
BACKGROUND: Polysomnography (PSG) is the gold standard for sleep bruxism (SB) assessment. High economical costs, complex technical equipment, and unfamiliar laboratory setting limit its use in children. AIM: To determine the night-to-night variability of electromyography (EMG) episodes during a five-night recording with the GrindCare Measure (GCM), and the agreement in the assessment of masticatory muscle activity (MMA) between GCM and PSG in children. DESIGN: Forty-seven children from clinics of Universidad CES participated...
June 6, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28585258/masticatory-muscle-architecture-in-a-water-rat-from-australasia-murinae-hydromys-and-its-implication-for-the-evolution-of-carnivory-in-rodents
#15
P-H Fabre, A Herrel, Y Fitriana, L Meslin, L Hautier
Murines are well known for their generalist diet, but several of them display specializations towards a carnivorous diet such as the amphibious Indo-Pacific water-rats. Despite the fact that carnivory evolved repeatedly in this group, few studies have investigated associated changes in jaw muscle anatomy and biomechanics. Here, we describe the jaw muscles and cranial anatomy of a carnivorous water-rat, Hydromys chrysogaster. The architecture of the jaw musculature of six specimens captured both on Obi and Papua were studied and described using dissections...
June 6, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28571278/applicability-of-the-cielab-and-ciede2000-formulae-for-detection-of-colour-changes-in-colour-changeable-chewing-gum-for-evaluating-masticatory-function
#16
Yesiboli Yeerken, Takafumi Otomaru, Mohamed Said, Na Li, Hisashi Taniguchi
INTRODUCTION: Mastication is one of the essential stomatognathic functions and is impaired when mandibulectomy is performed for removal of head and neck lesions. AIM: The purpose of this study was to investigate the correlation between perceived chewing ability {Masticatory Score (MS)} and objective mixing ability (∆E) in patients who had undergone marginal mandibulectomy. MATERIALS AND METHODS: Twenty normal dentate subjects as control group and twenty mandibulectomy patients who had undergone marginal mandibulectomy and wearing a dentomaxillary prosthesis were enrolled...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571250/impact-of-dental-disorders-and-its-influence-on-self-esteem-levels-among-adolescents
#17
Puneet Kaur, Simarpreet Singh, Anmol Mathur, Diljot Kaur Makkar, Vikram Pal Aggarwal, Manu Batra, Anshika Sharma, Nikita Goyal
INTRODUCTION: Self esteem is more of a psychological concept therefore, even the common dental disorders like dental trauma, tooth loss and untreated carious lesions may affect the self esteem thus influencing the quality of life. AIM: This study aims to assess the impact of dental disorders among the adolescents on their self esteem level. MATERIALS AND METHODS: The present cross-sectional study was conducted among 10 to 17 years adolescents...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28566055/motor-behavior-of-masticatory-muscles-in-individuals-with-unilateral-trans-incisive-foramen-cleft-lip-and-palate
#18
Letícia Miranda Resende da Costa, Maylli Daiani Graciosa, Jerusa Jordão Coelho, Roberto Rocha, Lilian Gerdi Kittel Ries
OBJECTIVE: To investigate whether children with complete unilateral cleft lip and palate (CLP) have altered control of masticatory muscles. METHODS: The muscular activity of 66 children with CLP (n = 33) and without CLP (n = 33), aged 6-12 years was assessed during different tasks (rest, isometry, mastication) using electromyography. RESULTS: The activation for the analyzed muscles was higher in children with CLP at rest (R) and inactive period (IP) (p < 0...
May 31, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28557358/evidence-for-central-sensitization-in-patients-with-temporomandibular-disorders-a-systematic-review-and-meta-analysis-of-observational-studies
#19
REVIEW
Roy La Touche, Alba Paris-Alemany, Amanda Hidalgo-Pérez, Ibai López-de-Uralde-Villanueva, Santiago Angulo-Diaz-Parreño, Daniel Muñoz-García
Temporomandibular disorder (TMD) is a very wide term which includes a variety of clinical issues related to the masticatory muscles, the temporomandibular joint (TMJ), and their associated structures (1) . For TMD patients the main concern is pain, and it is the most common reason for medical consultation; but pain makes also a great challenge for clinicians (2) . In fact, dysfunction of the central nervous system when processing nociceptive input has been stated as a factor involved in the onset and maintenance of pain in patients with chronic TMD (3) This article is protected by copyright...
May 29, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28556346/factors-affecting-masticatory-function-of-community-dwelling-older-people-investigation-of-the-differences-in-the-relevant-factors-for-subjective-and-objective-assessment
#20
Daisuke Takagi, Yutaka Watanabe, Ayako Edahiro, Yuki Ohara, Masaharu Murakami, Kohji Murakami, Shouji Hironaka, Yu Taniguchi, Akihiko Kitamura, Shoji Shinkai, Hirohiko Hirano
OBJECTIVE: This study aimed to examine relevant factors for subjective and objective assessment of masticatory functions and elucidate any differences between the two methods. BACKGROUND: Previous studies have reported that the results of subjective and objective assessment of masticatory function in older people do not necessarily agree. MATERIALS AND METHODS: This study included 487 community-dwelling Japanese older people (205 male and 282 female; mean age 74...
May 29, 2017: Gerodontology
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