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https://www.readbyqxmd.com/read/27919024/trigger-points-are-associated-with-widespread-pressure-pain-sensitivity-in-people-with-tension-type-headache
#1
María Palacios-Ceña, Kelun Wang, Matteo Castaldo, Amparo Guillem-Mesado, Carlos Ordás-Bandera, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas
OBJECTIVE: To investigate the association between trigger points (TrPs) and widespread pressure pain sensitivity in people with tension-type headache (TTH) and to determine if this association is different between frequent episodic (FETTH) or chronic (CTTH) headache. DESIGN: A cross-sectional study. METHODS: One hundred and fifty-seven individuals (29% male) with TTH participated. Clinical features of headache, i.e., intensity, duration, and frequency, were recorded in a headache diary...
November 14, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27908709/surgical-intervention-for-oromandibular-dystonia-related-limited-mouth-opening-long-term-follow-up
#2
Kazuya Yoshida
BACKGROUND: Oromandibular dystonia is a movement disorder that is characterized by involuntary masticatory and/or lingual muscle contracture. Jaw closing dystonia, the most common subtype of this condition, can cause trismus and is frequently misdiagnosed as temporomandibular joint disorder or masticatory muscle tendon-aponeurosis hyperplasia. MATERIALS AND METHODS: This report describes the long-term results of 18 patients with limited mouth opening (mean maximal mouth opening: 12...
October 28, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27908491/clinical-outcomes-of-botox-injections-for-chronic-temporomandibular-disorders-do-we-understand-how-botox-works-on-muscle-pain-and-the-brain
#3
S T Connelly, J Myung, R Gupta, G M Tartaglia, A Gizdulich, J Yang, R Silva
The main objective of this retrospective review was to analyze the clinical outcomes following the use of botulinum toxin (onabotulinumtoxinA, Botox) injections to relieve the symptoms of chronic temporomandibular disorders (TMD). Seventy-one patients with a diagnosis of TMD (according to the RDC/TMD international consortium) associated with or without bruxism and refractory to conventional treatment (e.g. oral appliances, physiotherapy, etc.) received Botox injections into the temporalis and masseter muscles...
November 28, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27900253/the-clinico-radiological-spectrum-of-masseteric-venous-malformation-case-report
#4
Kavita Agarwal, Hemant R Umarji, Sonali Kadam, Neeraj Agrawal
Due to its location, intra-masseteric venous malformation often mistaken for a parotid swelling and clinical examination alone frequently underestimates the deep extension of the lesion and rarely gives accurate pre-operative diagnosis. But once it is diagnosed, the feasibility of the treatment and the plan of approach depend on accurate delineation of the extent, size and location of the lesion. Therefore, complimentary radiographic studies are essential for its management. In this case report, typical features of venous malformation within the masseter muscle, including clinical findings (turkey wattle sign) and imaging are presented...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27893550/application-of-dexamethasone-in-the-masseter-muscle-during-the-surgical-removal-of-lower-third-molars
#5
Alípio Miguel Rocha-Neto, Emerson Filipe de Carvalho Nogueira, Patrícia Mendonça Borba, José Rodrigues Laureano-Filho, Belmiro Cavalcanti do Egito Vasconcelos
PURPOSE: The aim of the present study was to analyze the effect of the application of dexamethasone in the masseter muscle during third molar surgery. METHODS: This randomized, clinical trial used dependent samples and the split-mouth method. A sample of 30 patients, with impacted or semi-impacted third molars, as well as vertical and mesioangular positions of a similar surgical difficulty (on both sides), was subjected to 2 operations: an experimental operation and a control procedure, with a 30-day wash-out...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27889910/elimination-of-the-apposition-in-latin-anatomical-terms
#6
Paul E Neumann
The anatomical nomenclature rules require that terms be as short and simple as possible. One common exception to that rule is Latin terms that contain two nouns in nominative case, for example, Musculus masseter and Os ischium. Although these may appear to speakers of other languages to be compound nouns, they are appositions, grammatical structures in which one noun renames, defines or describes the entity named by the other noun. More than 125 terms in Terminologia Anatomica can be simplified, without loss of clarity, by prohibiting use of more than one noun in nominative case in Latin anatomical terms (e...
November 7, 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27888745/feasibility-of-eliciting-the-h-reflex-in-the-masseter-muscle-in-patients-under-general-anesthesia
#7
Sedat Ulkatan, Ana Maria Jaramillo, Maria J Téllez, Robert R Goodman, Vedran Deletis
OBJECTIVE: To explore the feasibility of eliciting the brainstem H reflex in the masseter muscle in patients under general anesthesia. METHODS: We electrically stimulated the masseteric nerve, a branch of the trigeminal nerve, and recorded ipsilateral masseteric and temporalis muscle responses. We tested eight patients who presented with trigeminal neuralgia; one patient had a temporal bone tumor and one patient had a brainstem arteriovenous malformation. All responses were elicited when patients were under general anesthesia and before the initiation of surgery...
November 5, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27884065/the-efficacy-of-two-formulations-of-botulinum-toxin-type-a-for-masseter-reduction-a-split-face-comparison-study
#8
Rungsima Wanitphakdeedecha, Chanida Ungaksornpairote, Arisa Kaewkes, Angkana Sathaworawong, Nittaya Lektrakul, Woraphong Manuskiatti
BACKGROUND: Botulinum toxin type A (BTA) is now extensively used to address cosmetic concerns. OnabotulinumtoxinA (ONA, Botox; Allergan Inc., Irvine, CA) received FDA approval for upper face rejuvenation, including glabella frown lines and crow's-feet lines. The other off-label uses for lower face conditions have been utilized for contouring purposes, especially masseter hypertrophy. Recently, a new Daewoong BTA, (NABOTA(®), NBT, Daewoong Pharmaceutical, Seoul, Korea), was recently introduced...
December 6, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27883909/anti-inflammatory-effect-of-a-fatty-acid-mixture-with-high-%C3%AF-9-%C3%AF-6-ratio-and-low-%C3%AF-6-%C3%AF-3-ratio-on-rats-submitted-to-dental-extraction
#9
Radamés Bezerra Melo, Paulo Goberlânio de Barros Silva, Reinaldo Barreto Oriá, José Ulisses de Souza Melo, Conceição da Silva Martins, Aline Matos Cunha, Paulo Roberto Leitão Vasconcelos
OBJECTIVE: To evaluate the anti-inflammatory effect of pretreatment for three days with a fatty acid mixture with high ω-9:ω-6 ratio and low ω-6:ω-3 ratio on rats submitted to dental extraction. MATERIAL AND METHODS: Thirty-two male Wistar rats (270-310g) were randomly distributed in four groups (n=8/group): the sham control group and the negative control group received saline; the high omega-6/low omega-9 group received isolipid fatty acid with high ω-6:ω-3 ratio and low ω-9:ω-6 ratio; the high omega-3/low omega-6 group received fatty acid with low ω-6:ω-3 ratio and high ω-9:ω-6 ratio...
November 16, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27878942/morphological-evolution-of-the-mammalian-jaw-adductor-complex
#10
Stephan Lautenschlager, Pamela Gill, Zhe-Xi Luo, Michael J Fagan, Emily J Rayfield
The evolution of the mammalian jaw during the transition from non-mammalian synapsids to crown mammals is a key event in vertebrate history and characterised by the gradual reduction of its individual bones into a single element and the concomitant transformation of the jaw joint and its incorporation into the middle ear complex. This osteological transformation is accompanied by a rearrangement and modification of the jaw adductor musculature, which is thought to have allowed the evolution of a more-efficient masticatory system in comparison to the plesiomorphic synapsid condition...
November 23, 2016: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/27876986/prevalence-and-pathological-lesions-of-ovine-cysticercosis-in-slaughtered-sheep-in-western-iran
#11
Mohammad Hashemnia, Yasser Shahbazi, Ghasem Frajani Kish
Cysticercusovis, the intermediate stage of a canine tapeworm, Taenia ovis, produces cystic lesions in the skeletal and cardiac muscle of sheep which, if numerous, will result in the condemnation of an entire carcass. This study was carried out between March 2013 and March 2014 to estimate the prevalence of Taenia oviscysticercosis in sheep slaughtered at the Kermanshah municipal abattoir, in western Iran. Of 69,198 sheep examined, 833 (1.27 %) were infected with cysticerci of Taenia ovis. The prevalence of C...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27875513/post-traumatic-trigeminal-neuropathy-caused-by-an-orbital-stab-wound
#12
Shinpei Matsuda, Hitoshi Yoshimura, Tadanori Hamano, Kazuo Sano
Sensory and motor neuropathy of the trigeminal nerve due to trauma is quite rare. Furthermore, there have been no detailed reports on occlusal abnormalities and trismus associated with post-traumatic trigeminal motor neuropathy. Here, the authors report a case of trigeminal motor neuropathy and trigeminal sensory neuropathy in all 3 divisions caused by an orbital stab wound. During kendo practice, a 61-year-old man was injured in his right medial canthus with the splinter of a broken bamboo sword. Imaging examinations did not show a brain injury or orbital bone fracture...
November 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27870343/the-biomechanics-of-zygomatic-arch-shape
#13
Amanda L Smith, Ian R Grosse
Mammalian zygomatic arch shape is remarkably variable, ranging from nearly cylindrical to blade-like in cross section. Based on geometry, the arch can be hypothesized to be a sub-structural beam whose ability to resist deformation is related to cross sectional shape. We expect zygomatic arches with different cross sectional shapes to vary in the degree to which they resist local bending and torsion due to the contraction of the masseter muscle. A stiffer arch may lead to an increase in the relative proportion of applied muscle load being transmitted through the arch to other cranial regions, resulting in elevated cranial stress (and thus, strain)...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870341/development-structure-and-function-of-the-zygomatic-bones-what-is-new-and-why-do-we-care
#14
Paul C Dechow, Qian Wang
This issue of The Anatomical Record is the first of a two-volume set on the zygoma (also called the cheek bone, the zygomatic bone, the malar, or the jugal, the latter term being used in vertebrates other than mammals). The zygoma is an important component of the craniofacial skeleton, in which the zygoma is a connection between the midfacial and the cranial skeletons; has a functional role as the origin of one of the masticatory muscles, the masseter muscle, and several facial muscles; has been considered as an essential buttress of the facial skeleton for resisting masticatory forces; and has importance for determining phylogenetic relationships...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27870339/zygomatic-arch-cortical-area-and-diet-in-haplorhines
#15
Hallie Edmonds
The influence that various types of ingested foods have on the form (size and shape) of specific features of the masticatory system is an area in which many questions remain unanswered. The bony zygomatic arch, the focus of this study, is directly linked to the masticatory system because it serves as the anchor for the masseter muscle, a primary muscle of chewing and source of masticatory force. However, the influence of diet and the forces associated with different diet types on the arch's internal bone architecture is not well understood...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27863898/automated-3d-rendering-of-ribs-in-110-polytrauma-patients-strengths-and-limitations
#16
Suonita Khung, Pauline Masset, Alain Duhamel, Jean-Baptiste Faivre, Thomas Flohr, Jacques Remy, Martine Remy-Jardin
RATIONALE AND OBJECTIVES: To evaluate the strengths and limitations of a rib-unfolding software in a polytrauma context. MATERIALS AND METHODS: Chest computed tomography (CT) examinations of 110 patients were reviewed for specific detection of rib fractures using: (1) transverse CT sections ±  multiplanar reformattings (ie, the standard of reference), and (2) unfolded rib images reconstructed by the CT Bone Reading software with the possibility of rib analysis along their long axis and creation of standard orthogonal views in different orientations of any area suspected of fracture...
November 15, 2016: Academic Radiology
https://www.readbyqxmd.com/read/27861944/chronic-parotitis-with-multiple-calcifications-clinical-and-sialendoscopic-findings
#17
Emmanuel Jáuregui, Ruwan Kiringoda, William R Ryan, David W Eisele, Jolie L Chang
OBJECTIVES/HYPOTHESIS: To characterize clinical, imaging, and sialendoscopy findings in patients with chronic parotitis and multiple parotid calcifications. STUDY DESIGN: Retrospective review. METHODS: Clinical history, radiographic images and reports, lab tests, and operative reports were reviewed for adult patients with chronic parotitis and multiple parotid calcifications who underwent parotid sialendoscopy. RESULTS: Thirteen of 133 (10%) patients undergoing parotid sialendoscopy for chronic sialadenitis had more than one calcification in the region of the parotid gland...
November 15, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27861942/the-ectopic-accessory-parotid-system-with-congenital-cheek-fistula-an-overview-and-current-update
#18
REVIEW
Mainak Dutta
OBJECTIVE: This review attempts to provide a comprehensive, updated overview of the ectopic accessory parotid system (EAPS) from clinical and developmental perspectives and investigates its eligibility to be included in the oculo-auriculo-vertebral spectrum (OAVS). REVIEW METHODS: Results of the keyword-based search in the PubMed/MEDLINE, Google Scholar, LILACS, and Cochrane Library were subjected to the given inclusion and exclusion criteria that corroborated with the definition of EAPS...
November 12, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27856964/neonatal-satellite-cells-form-small-myotubes-in-vitro
#19
P L Carvajal Monroy, S Grefte, A M Kuijpers-Jagtman, J W Von den Hoff, F A D T G Wagener
Although palatal muscle reconstruction in patients with cleft palate takes place during early childhood, normal speech development is often not achieved. We hypothesized that the intrinsic properties of head satellite cells (SCs) and the young age of these patients contribute to the poor muscle regeneration after surgery. First, we studied the fiber type distribution and the expression of SC markers in ex vivo muscle tissue from head (branchiomeric) and limb (somite-derived) muscles from neonatal (2-wk-old) and young (9-wk-old) rats...
November 16, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27833337/eventuality-of-dexamethasone-injected-intra-massetrically-on-post-operative-sequel-following-the-surgical-extraction-of-impacted-mandibular-third-molars-a-prospective-study
#20
G D Nandini
OBJECTIVE: The objective of the study was to compare the efficacy of dexamethasone given intra-massetrically via intra buccal approach on postoperative sequele after surgical extraction of impacted mandibular third molars. METHODOLOGY: Twenty patients, each of who required surgical extraction of a single impacted mandibular third molar under local anesthesia, were randomly set apart to one of the two groups of ten each. The experimental group received dexamethasone 8 mg injected to the masseter muscle intra buccally and the control group did not receive any steroid...
December 2016: Journal of Maxillofacial and Oral Surgery
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