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https://www.readbyqxmd.com/read/28732179/kgf-enhances-oral-epithelial-adhesion-and-rete-peg-elongation-via-integrins
#1
G L Sa, X P Xiong, J G Ren, J Y Wang, H F Xia, Z K Liu, S G He, Y F Zhao
Oral epithelial adhesion to the lamina propria underlies the physiologic function of the oral mucosa and contributes to resisting bacterial invasion, preventing body fluid loss, and maintaining routine chewing; thus, understanding the factors that positively influence oral epithelial adhesion is a research topic of great interest. Rete pegs contribute to oral epithelial adhesion by enlarging the contact areas, whereas integrins are the major molecules that mediate epithelial cell adhesion to the basement membrane...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28729593/is-the-shortened-dental-arch-still-a-satisfactory-option
#2
M Manola, F Hussain, B J Millar
Aims Dental practitioners may hold the view that missing posterior teeth should be replaced to ensure a healthy masticatory system and satisfactory oral function. However, the shortened dental arch (SDA) concept is still in use, but after 35 years is it acceptable? This review searches the literature for the evidence and opinions regarding the suitability of the SDA as a current treatment modality.Methods Medline and PubMed databases were searched for relevant terms, all the abstracts were assessed and articles selected according to the pre-set exclusion and inclusion criteria...
July 21, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28728749/numb-chin-with-mandibular-pain-or-masticatory-weakness-as-indicator-for-systemic-malignancy-a-case-series-study
#3
Shin-Yu Lu, Shu-Hua Huang, Yen-Hao Chen
BACKGROUND/PURPOSE: Numb chin syndrome (NCS) is a critical sign of systemic malignancy; however it remains largely unknown by clinicians and dentists. The aim of this study was to investigate NCS that is more often associated with metastatic cancers than with benign diseases. METHODS: Sixteen patients with NCS were diagnosed and treated. The oral and radiographic manifestations were assessed. RESULTS: Four (25%) of 16 patients with NCS were affected by nonmalignant diseases (19% by medication-related osteonecrosis of the jaw and 6% by osteopetrosis); yet 12 (75%) patient conditions were caused by malignant metastasis, either in the mandible (62%) or intracranial invasion (13%)...
July 17, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28722246/delta-9-tetrahydrocannabinol-decreases-masticatory-muscle-sensitization-in-female-rats-through-peripheral-cannabinoid-receptor-activation
#4
H Wong, S Hossain, B E Cairns
BACKGROUND: This study investigated whether intramuscular injection of delta-9-tetrahydrocannabinol (THC), by acting on peripheral cannabinoid (CB) receptors, could decrease nerve growth factor (NGF)-induced sensitization in female rat masseter muscle; a model which mimics the symptoms of myofascial temporomandibular disorders. METHODS: Immunohistochemistry was used to explore the peripheral expression of cannabinoid receptors in the masseter muscle while behavioural and electrophysiology experiments were employed to assess the functional effects of intramuscular injection of THC...
July 18, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28721997/selection-of-dental-implants-based-on-masticatory-load-of-the-patient-a-novel-approach
#5
Sindhu Sudhakar Kumararama, Ramesh Chowdhary
PURPOSE: Masticatory load and efficiency vary from one individual to other. Maximum load of one person may be the least load of another. Hence, optimization of dental implants based on the load dissipation of an individual is essential for a better prognosis of implant-supported prosthesis. The aim of the study was to find the appropriate implant dimensions for the particular region based on the masticatory efficiency of the individual. MATERIALS AND METHODS: A two-dimensional-threaded implant model was designed, which was duplicated in total 28 models with varying dimensions starting from 3 mm × 8 mm till 6 mm × 14 mm, with an incremental increase of 2 mm in length and 0...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28718463/-chewing-on-bruxism-associations-consequences-and-management
#6
F Lobbezoo, R Jacobs, A DE Laat, G Aarab, P Wetselaar, D Manfredini
In this second part of a diptych on bruxism, the focus is on the associations of this masticatory muscle activity with other sleep-related conditions. Its association with the obstructive sleep apnoea syndrome (OSAS) has been a particular object of study. Bruxism seems to play a protective role in OSAS, although the evidence for this is not yet conclusive. Apart from this possible positive consequence, bruxism also has several negative consequences, for which evidence is available to a greater or lesser extent...
July 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28714016/elastin%C3%A2-derived-peptides-are-involved-in-the-processes-of-human-temporomandibular-disorder-by-inducing-inflammatory-responses-in-synovial-cells
#7
Kazuhiko Kobayashi, Rei Jokaji, Mayuko Miyazawa-Hira, Shigeyuki Takatsuka, Akira Tanaka, Kazuhiro Ooi, Hiroyuki Nakamura, Shuichi Kawashiri
Temporomandibular joint dysfunction (TMD) is a collection of clinical symptoms that involve masticatory muscles and the temporomandibular joint (TMJ). Common symptoms include limited jaw motion and joint sound/pain, along with TMJ disc displacement. TMD is frequently associated with synovitis, a chronic inflammation of the synovium. Fibroblast‑like synovial cells have been identified to produce several inflammatory mediators and may have an important role in the progression of TMJ inflammation. Degradation of the extracellular matrix molecule elastin may lead to the release of bioactive peptides...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28709680/patient-satisfaction-with-laser-sintered-removable-partial-dentures-a-crossover-pilot-clinical-trial
#8
Balqees Almufleh, Elham Emami, Omar Alageel, Fabiana de Melo, Francois Seng, Eric Caron, Samer Abi Nader, Ashwaq Al-Hashedi, Rubens Albuquerque, Jocelyne Feine, Faleh Tamimi
STATEMENT OF PROBLEM: Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies. PURPOSE: This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and computer-aided manufacturing (CAD-CAM) laser-sintering technology. MATERIAL AND METHODS: Twelve participants with partial edentulism were enrolled in this pilot crossover double-blinded clinical trial...
July 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28706786/role-of-1-5%C3%A2-mm-microplates-in-treatment-of-symphyseal-fracture-of-mandible-a-stress-analysis-based-comparative-study
#9
Syed S Ahmed, Siddharth Bhardwaj, Md Kalim Ansari, Omar Farooq, Abid Ali Khan
AIMS AND OBJECTIVES: To perform comparative finite element analysis (FEA)for 2.0 mm standard miniplate and 1.5 mm microplate in isolated symphyseal mandibular fractures. MATERIAL AND METHOD: Two FE models of mandible were developed and symphyseal fracture was created in both of them. Each fractured model was reduced and fixed using two mini plates and two microplates, respectively according Champ's principle. Stresses thus developed in the plates after application of masticatory load were observed in the models...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28706781/assessment-of-condyle-masseter-and-temporal-muscles-volumes-in-patients-with-juvenile-systemic-lupus-erythematosus-a-cross-sectional-study
#10
Sandra Lucia Golin, Nailu Angélica Sinicato, Karyna Valle-Corotti, Acácio Fuziy, Ana Carla Nahas-Scocate, Simone Appenzeller, Andre Luiz Ferreira Costa
AIMS: The purpose of this study was to evaluate the effect of the corticosteroid therapy for both treatment of juvenile systemic lupus erythematosus and disease activity on two masticatory muscles and condyle of the temporomandibular joint. METHODS: A total of 21 controls and 48 juvenile systemic lupus erythematosus patients were investigated. Volumes of the temporal and masseter muscles and condyle of the subjects were assessed by using a 3D reconstruction in magnetic resonance imaging...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28706744/management-of-oromandibular-dystonia-a-case-report-and-literature-update
#11
Suma Gn, Adrita Nag
Oromandibular dystonia (OMD) is a movement disorder characterized by involuntary, paroxysmal, and patterned muscle contractions of varying severity resulting in sustained spasms of masticatory muscles, affecting the jaws, tongue, face, and pharynx. It is most commonly idiopathic or medication-induced, but peripheral trauma sometimes precedes the condition. We present a case report of a 26-year-old female patient who suffered repetitive bouts of hemifacial muscle contractions for 2 years on closing the mouth which interfered in patient's well-being and quality of life by hampering her ability to eat and talk and to the extent of inability to breath due to contractions of her neck muscles...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28705728/single-mandibular-implant-study-smis-masticatory-performance-results-from-a-randomized-clinical-trial-using-two-different-loading-protocols
#12
Nicole Passia, Samir Abou-Ayash, Daniel R Reissmann, Elfriede Fritzer, Stefanie Kappel, Ioannis Konstantinidis, Valerie V Koenigsmarck, Torsten Mundt, Meike Stiesch, Stefan Wolfart, Shurouk Ali, Matthias Kern
OBJECTIVES: This multi-centre randomized controlled trial was conducted to investigate, whether the masticatory performance of elderly edentulous patients is improved by placement of a single implant in the midline of the edentulous mandible, and whether improvements differ with respect to the loading protocol, i.e., implant is loaded either directly or three months later after second stage surgery. METHODS: Edentulous seniors aged 60-89 years were screened according to inclusion and exclusion criteria and 163 underwent implant placement...
July 10, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28691420/recent-advances-in-tissue-conditioners-for-prosthetic-treatment-a-review
#13
REVIEW
Barbara Dorocka-Bobkowska, Dominik Medynski, Mariusz Prylinski
Tissue conditioners (TCs) are short term soft liners, formed in situ from the mixture of a polymer powder and a liquid plasticizer. The article reviews recent advances in composition, functions, clinical use, gelation process, and physical properties of TCs and their effects on denture bases and oral mucosa. TCs are used to improve the fit and function of an ill-fitting denture. They can also be used to treat abused mucosal tissues underlying ill-fitting acrylic dentures as temporary expedients. TCs are recommended as provisional liners to maintain the fit of removable dentures and to prevent mechanical irritation from the denture...
June 27, 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28689341/painful-spasms-in-facial-masticatory-and-motor-ocular-muscles-reversed-after-microvascular-decompression-of-a-neurovascular-conflict-at-brainstem
#14
Tania-Mihaela Idriceanu, Marc Sindou
The authors present a case of a 42-year-old female admitted for disabling complex and atypical bilateral facial spasms associated with painful masticatory and motor ocular dystonic movements, difficult to fit in the definition of any known cranio-facial dyskinesias. MRI showed a left PICA loop invaginated into the brainstem, considered responsible of an hyperactive disorder of the brainstem nuclei neighboring the conflict. After microvascular decompression, the patient made a full recovery with complete disappearance of the paroxystic phenomena...
July 8, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28682540/-influence-on-indian-hedgehog-parathyroid-hormone-like-related-protein-pathway-induced-by-altered-masticatory-loading-in-the-condylar-cartilage-of-growing-rabbits
#15
Yan Fan, Feng Jianying, Liu Chenyan, Wang Pan, Sun Zhe, Shi Changjing
OBJECTIVE: To determine the influence of altered masticatory loading on Indian hedgehog (Ihh)-parathyroid hormone-like related protein (PThrP) pathway in the condylar cartilage of growing rabbits. METHODS: A total of 48 10-day-old rabbits were randomly divided into two groups and fed different kinds of food, such as solid diet and soft diet. The animals were sacrificed after 2, 4, 6, and 8 weeks. Difference of Ihh and PThrP expression levels induced by altered masticatory loading was tested by hematoxylin-eosin (HE), immunohistochemistry, Western blot, and real-time polymerase chain reaction (PCR)...
April 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28681044/masticatory-function-with-ball-and-resilient-telescopic-anchors-of-mandibular-implant-retained-overdentures-a-crossover-study
#16
Moustafa Abdou Elsyad, Ahmad Fathalla Shawky
OBJECTIVE: The masticatory function of implant-retained overdentures with different attachments has not been sufficiently investigated. This study evaluated the masticatory function of implant-retained mandibular overdentures with ball and resilient telescopic attachments. METHOD AND MATERIALS: Twelve edentulous participants were rehabilitated with new maxillary and mandibular conventional dentures (CD). Three months later, two implants were installed in the canine regions of the mandible...
July 4, 2017: Quintessence International
https://www.readbyqxmd.com/read/28677236/the-test-of-masticating-and-swallowing-solids-tomass-reliability-validity-and-international-normative-data
#17
Maggie-Lee Huckabee, Theresa McIntosh, Laura Fuller, Morgan Curry, Paige Thomas, Margaret Walshe, Ellen McCague, Irene Battel, Dalia Nogueira, Ulrike Frank, Lenie van den Engel-Hoek, Oshrat Sella-Weiss
BACKGROUND: Clinical swallowing assessment is largely limited to qualitative assessment of behavioural observations. There are limited quantitative data that can be compared with a healthy population for identification of impairment. The Test of Masticating and Swallowing Solids (TOMASS) was developed as a quantitative assessment of solid bolus ingestion. AIMS: This research programme investigated test development indices and established normative data for the TOMASS to support translation to clinical dysphagia assessment...
July 5, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28676294/psychological-stress-relieving-effects-of-chewing-relationship-between-masticatory-function-related-factors-and-stress-relieving-effects
#18
Akinori Tasaka, Manaki Kikuchi, Kousuke Nakanishi, Takayuki Ueda, Shuichiro Yamashita, Kaoru Sakurai
PURPOSE: The objective of the present study was to investigate the relationship between masticatory function-related factors (masticatory performance, occlusal contact area, maximum bite force, number of chewing strokes, and muscle activity) and the stress-relieving effects of chewing. METHODS: A total of 28 healthy male subjects were instructed to rest or chew for 10min after 30min of stress loading with arithmetic calculations. Their stress state was assessed by measuring salivary cortisol levels...
July 1, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28666845/a-systematic-review-of-studies-comparing-conventional-complete-denture-and-implant-retained-overdenture
#19
REVIEW
Ahmad Kutkut, Elizangela Bertoli, Robert Frazer, Gitanjali Pinto-Sinai, Rodrigo Fuentealba Hidalgo, Jamie Studts
PURPOSE: Several studies reported better outcomes when restoring edentulous mandible with unsplinted IODs compared to CCDs; however, it is not clear if these outcomes remain when the full literature is considered. The aim of this systematic review is to compare conventional complete dentures (CCDs) to unsplinted implant-retained overdentures (IODs) with regard to efficacy, satisfaction and quality of life. STUDY SELECTION: The main question addressed was: How do CCDs compare to unsplinted IODs with regard to efficacy, satisfaction and quality of life? Three databases were electronically searched to identify articles comparing CCD to unsplinted IOD...
June 27, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28666237/excitability-of-the-masseter-inhibitory-reflex-after-high-frequency-rtms-over-the-motor-cortex-a-study-in-healthy-humans
#20
Congcong Cui, Yuhan Song, Xiao Fan, Qian Guo, Jijun Wang, Weicai Liu
OBJECTIVE: We aimed to investigate the influence of high frequency repetitive transcranial magnetic stimulation (rTMS) of the motor cortex on excitability of the masseter inhibitory reflex (MIR) in healthy subjects. Our goal in conducting this study was to obtain a better understanding of the subcortical and cortical networks related to the excitability of the central masticatory pathway. METHODS: Twenty healthy volunteers participated in this study. MIRs were evaluated both before and after high frequency rTMS to elicit motor evoked potentials (MEPs) using single- and double-shock techniques over the motor cortex...
June 17, 2017: Archives of Oral Biology
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