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https://www.readbyqxmd.com/read/29340354/implant-mandibular-overdentures-retained-by-immediately-loaded-implants-a-1-year-randomized-trial-comparing-patient-based-outcomes-between-mini-dental-implants-and-standard-sized-implants
#1
Kostas Zygogiannis, Irene Ha Aartman, Daniel Wismeijer
PURPOSE: The aim of this 1-year randomized trial was to determine the stability and the magnitude of the effect of converting patients' conventional mandibular dentures to implant overdentures (IODs) on their satisfaction and oral health-related quality of life (OHRQoL). The IODs were retained either with two immediately loaded interconnected standard-diameter implants or with four immediately loaded mini dental implants (MDIs). MATERIALS AND METHODS: Fifty completely edentulous subjects complaining about insufficient retention of their mandibular dentures were randomly assigned to two groups; 25 patients received IODs retained with four MDIs and 25 patients received IODs retained with two standard-sized tissue level (STL) interconnected implants...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29326508/effect-of-ultraviolet-irradiation-on-the-osseointegration-of-a-titanium-alloy-with-bone
#2
Ashish Yadav, Ranjana Yadav, Aratee Gupta, Akash Baranwal, Atul Bhatnagar, Vakil Singh
Introduction: Attempt has been made to analyze the potential of titanium (Ti) alloy for osteointegration by the effect of surface photo functionalization in different aspects as follows: in Ringer's solution, in vitro cell growth, and in vivo study on rabbit. The present study was aimed to investigate the influence of ultraviolet (UV) light on surface topography, corrosion behavior, and bioactivity of indigenously manufactured samples of Ti alloy mini-implant. Materials and Methods: The study includes surface modification of Ti samples by UV treatment, corrosion testing of the specimens using Potentiostat (GAMRY System), qualitative examination of modified surface topography using scanning electron microscope, and cellular viability test on Ti alloy surface (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide ASSAY)...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29324792/critical-evaluation-of-colon-submucosal-microdialysis-in-awake-mobile-rats
#3
Norbert Cibicek, Jiri Ehrmann, Jitka Proskova, Rostislav Vecera
Sensors able to record large bowel physiology and biochemistry in situ in awake rodents are lacking. Microdialysis is a mini-invasive technique that may be utilized to continuously deliver or recover low-molecular substances from various tissues. In this experiment we evaluated the feasibility of in vivo microdialysis to monitor extracellular fluid chemistry in the descending colon submucosa of conscious, freely moving rodents. Following surgical implantation of a microdialysis probe, male Wistar rats were housed in metabolic cages where they were analgized and clinically followed for four days with free access to standard diet and water...
2018: PloS One
https://www.readbyqxmd.com/read/29306080/hybrid-micro-nanostructural-surface-offering-improved-stress-distribution-and-enhanced-osseointegration-properties-of-the-biomedical-titanium-implant
#4
Ping-Jen Hou, Keng-Liang Ou, Chin-Chieh Wang, Chiung-Fang Huang, Muhammad Ruslin, Erwan Sugiatno, Tzu-Sen Yang, Hsin-Hua Chou
OBJECTIVES: The aim of the present study was to investigate the surface characteristic, biomechanical behavior, hemocompatibility, bone tissue response and osseointegration of the optimal micro-arc oxidation surface-treated titanium (MST-Ti) dental implant. MATERIALS AND METHODS: The surface characteristic, biomechanical behavior and hemocompatibility of the MST-Ti dental implant were performed using scanning electron microscope, finite element method, blood dripping and immersion tests...
November 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29302307/breast-fibromatosis-an-unusual-breast-disease
#5
Khaled Abdelwahab, Omar Hamdy, Mona Zaky, Nirmeen Megahed, Saleh Elbalka, Mohamed Elmetwally, Adel Denewer
Fibromatosis is a benign tumor that rarely affects the breast and is an unusual site for its occurrence. Whilst the definite etiology of breast fibromatosis is unclear, it may present itself following surgical trauma or silicone implant. Wide local excision with adequate safety margins is considered the standard of care. We review three cases of breast fibromatosis who were presented to and operated in the Oncology center, Mansoura universty (between April 2014 and August 2016). Two of these cases underwent wide local excision and primary closure of the defect whilst the other one was reshaped by mini latismuss dorsi flap...
December 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29300279/disease-modifying-actions-of-il-6-blockade-in-a-rat-model-of-bone-cancer-pain
#6
Bethany Remeniuk, Tamara King, Devki Suktankhar, Amy Nippert, Nancy Li, Fuying Li, Kejun Cheng, Kenner C Rice, Frank Porreca
Metastasis of cancer to the skeleton represents a debilitating turning point in the lives of patients. Skeletal metastasis leads to moderate to severe ongoing pain along with bone remodeling that can result in fracture, events that dramatically diminish quality of life. IL-6 levels are elevated in metastatic breast cancer patients and are associated with a lower survival rate. We therefore determined the consequences of inhibition of IL-6 signaling using a novel small molecule antagonist, TB-2-081, on bone integrity, tumor progression, and pain in a rodent model of breast cancer...
December 26, 2017: Pain
https://www.readbyqxmd.com/read/29275567/-construction-and-assessment-of-a-three-dimensional-finite-element-model-of-mandibualr-second-molar-mesialization-using-customized-lingual-appliance-and-mini-implant
#7
C Chen, C X Wang, J H Yang, L Y Cai, Q G Rong, Y L Zhang
Objective: To construct a three-dimensional (3D) finite element model and analyze the biomechanical characteristics during mandibular second molar mesialization using customized lingual appliances and mini-implant. Methods: One adult student volunteer from The First Affiliated Hospital of Zhengzhou University with lower left first molar extraction was selected. After CT scanning, Mimics, Geomagic, ANSYS were employed to develop a 3D finite element model including customized lingual brackets, stainless steel lingual arch wire, buccal buckles, lower dentition, periodontal ligaments and alveolar bone...
December 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29258851/a-new-synthetic-granular-calcium-phosphate-compound-induces-new-bone-in-a-sinus-lift-rabbit-model
#8
Trbakovic Amela, Hedenqvist Patricia, Mellgren Torbjörn, Ley Cecilia, Hilborn Jöns, Ossipov Dmitri, Ekman Stina, Johansson B Carina, Waern-Jensen Marianne, Thor Andreas
OBJECTIVES: The aim of this study was to investigate if a synthetic granular calcium phosphate compound (CPC) and a composite bisphosphonate-linked hyaluronic acid-calcium phosphate hydrogel (HABP·CaP) induced similar or more amount of bone as bovine mineral in a modified sinus lift rabbit model. MATERIAL AND METHODS: Eighteen adult male New Zeeland White rabbits, received randomly one of the two test materials on a random side of the face, and bovine mineral as control on the contralateral side...
December 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29244694/failure-of-patellar-plating-with-mini-fragment-implants-a-case-report
#9
Daniel T Miles, Matthew L Graves, Clay A Spitler, Patrick F Bergin
CASE: A 40-year-old woman presented to the emergency department with a comminuted fracture of the patella with separation of the bone fragments. The patient underwent an open reduction and osteosynthesis using medial and lateral 2.0-mm nonlocking plates, which subsequently led to pain in the anterior and posterior aspects of the knee. CONCLUSION: In this patient, bicolumnar nonlocking plating was unable to adequately resist the tensile forces of the extensor mechanism...
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29243679/surgery-related-factors-affecting-the-stability-of-orthodontic-mini-implants-screwed-in-alveolar-process-interdental-spaces-a-systematic-literature-review
#10
Greta Gintautaitė, Alė Gaidytė
The ambiguous results of scientific researches on surgical factors affecting the stability of mini implants (MI) impels the physicians to constantly analyze this problem. The objective of this article was to conduct a systematic literature review about surgery related factors affecting the stability of MI screwed in alveolar process buccal surface between the second premolar and first molar roots based on peer reviewed publications of 2009-2015. The Cochrane and PRISMA references were used while searching for scientific literature...
2017: Stomatologija
https://www.readbyqxmd.com/read/29232204/the-zygoma-and-the-symphysis-new-extra-alveolar-sites-for-long-mini-implants
#11
Carlos Villegas, Niloufar Azami, Ravindra Nanda, Flavio A Uribe
No abstract text is available yet for this article.
October 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29231685/a-mini-dental-implant-alternative-to-all-on-four
#12
Todd E Shatkin, Alysa Brooke Sadkin, Jared Shatkin
No abstract text is available yet for this article.
May 2017: Dentistry Today
https://www.readbyqxmd.com/read/29226300/a-novel-method-for-treatment-of-class-iii-malocclusion-in-growing-patients
#13
Saad A Al-Mozany, Oyku Dalci, Mohammed Almuzian, Carmen Gonzalez, Nour E Tarraf, M Ali Darendeliler
BACKGROUND: Management of Class III malocclusion is one of the most challenging treatments in orthodontics, and several methods have been advocated for treatment of this condition. A new treatment protocol involves the use of an alternating rapid maxillary expansion and constriction (Alt-RAMEC) protocol, in conjunction with full-time Class III elastic wear and coupled with the use of temporary anchorage devices (TADs). The aim of this study was to evaluate the dento-skeletal and profile soft tissue effects of this novel protocol in growing participants with retrognathic maxilla...
December 11, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29224769/evaluation-of-speech-reception-threshold-in-noise-in-young-cochlear%C3%A2-nucleus%C3%A2-system-6-implant-recipients-using-two-different-digital-remote-microphone-technologies-and-a-speech-enhancement-sound-processing-algorithm
#14
Sergio Razza, Monica Zaccone, Aannalisa Meli, Eliana Cristofari
OBJECTIVE: Children affected by hearing loss can experience difficulties in challenging and noisy environments even when deafness is corrected by Cochlear implant (CI) devices. These patients have a selective attention deficit in multiple listening conditions. At present, the most effective ways to improve the performance of speech recognition in noise consists of providing CI processors with noise reduction algorithms and of providing patients with bilateral CIs. The aim of this study was to compare speech performances in noise, across increasing noise levels, in CI recipients using two kinds of wireless remote-microphone radio systems that use digital radio frequency transmission: the Roger Inspiro accessory and the Cochlear Wireless Mini Microphone accessory...
December 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29216500/strontium-and-bisphosphonate-coated-iron-foam-scaffolds-for-osteoporotic-fracture-defect-healing
#15
Seemun Ray, Ulrich Thormann, Marlen Eichelroth, Matthäus Budak, Christoph Biehl, Markus Rupp, Ursula Sommer, Thaqif El Khassawna, Francisca I Alagboso, Marian Kampschulte, Marcus Rohnke, Anja Henß, Klaus Peppler, Vanessa Linke, Peter Quadbeck, Axel Voigt, Florian Stenger, Daniel Karl, Reinhard Schnettler, Christian Heiss, Katrin S Lips, Volker Alt
The purpose of this work was to investigate new bone formation in macroporous iron foams coated with strontium (FeSr) or bisphosphonate (FeBiP) compared to plain iron foam (Fe) and empty defect in a critical size metaphyseal bone defect model in ovariectomized rats. 60 female rats were subjected to bilateral ovariectomy and multi-deficient diet for 3 months. A 4 mm wedge shaped metaphyseal osteotomy was created, fixed with a mini-plate and subsequently filled with Fe, FeSr, FeBiP or left empty. After 6 weeks, μCt analysis revealed a statistically significant increased bone formation at the implant interface in FeSr compared to FeBiP (p = 0...
December 1, 2017: Biomaterials
https://www.readbyqxmd.com/read/29216024/maxillary-cortical-bone-thickness-in-a-south-eastern-anatolian-population-a-cone-beam-computed-tomography-study
#16
Ozkan Adiguzel, Ceren Aktuna Belgin, Seda Falakaloglu, Suzan Cangul, Zeki Akkus
BACKGROUND The aim of this study was to measure the distance between the maxillary premolar and molar teeth apices to the buccal cortical bone and evaluate differences in gender and age group, using cone beam computed tomography (CBCT). MATERIAL AND METHODS This retrospective study comprised of 451 premolar and molar teeth of one hundred and thirteen patients who were admitted to Dicle University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology for different reasons. Data were analyzed using Student's t-tests and Tukey HSD tests...
December 7, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29198041/ethical-considerations-on-novel-neuronal-interfaces
#17
Kadircan H Keskinbora, Kader Keskinbora
Wireless powered implants, each smaller than a grain of rice, have the potential to scan and stimulate brain cells. Further research may lead to next-generation brain-machine interfaces for controlling prosthetics, exoskeletons, and robots, as well as "electroceuticals" to treat disorders of the brain and body. In conditions that can be particularly alleviated with brain stimulation, the use of such mini devices may pose certain challenges. Health professionals are becoming increasingly more accountable in decision-making processes that have impacts on the life quality of individuals...
December 2, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29196099/dkk3-overexpression-attenuates-cardiac-hypertrophy-and-fibrosis-in-an-angiotensin-perfused-animal-model-by-regulating-the-adam17-ace2-and-gsk-3%C3%AE-%C3%AE-catenin-pathways
#18
Chun-Gang Zhai, Ye-Yang Xu, Yuan-Yuan Tie, Ya Zhang, Wen-Qiang Chen, Xiao-Ping Ji, Yang Mao, Lei Qiao, Jing Cheng, Qing-Bo Xu, Cheng Zhang
AIMS: Cardiac pressure and humoral factors induce cardiac hypertrophy and fibrosis, which are characterized by increased stiffness, reduced contractility and altered perfusion. Angiotensin II (AngII) is well known to promote this pathology. Angiotensin-converting enzyme (ACE) 2, which cleaves AngII and forms Ang-(1-7), exerts protective anti-hypertrophy and anti-fibrosis effects. A disintegrin and metalloproteinase 17 (ADAM17), a membrane-bound enzyme reported to cleave ACE2, may participate in the pathological process of AngII perfusion-induced heart damage...
December 4, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29160344/quantification-of-intrusive-retraction-force-and-moment-generated-during-en-masse-retraction-of-maxillary-anterior-teeth-using-mini-implants-a-conceptual-approach
#19
A Sumathi Felicita
OBJECTIVE: The aim of the present study was to clarify the biomechanics of en-masse retraction of the upper anterior teeth and attempt to quantify the different forces and moments generated using mini-implants and to calculate the amount of applied force optimal for en-masse intrusion and retraction using mini-implants. METHODS: The optimum force required for en-masse intrusion and retraction can be calculated by using simple mathematical formulae. Depending on the position of the mini-implant and the relationship of the attachment to the center of resistance of the anterior segment, different clinical outcomes are encountered...
September 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29151273/post-treatment-with-methylene-blue-is-effective-against-delayed-encephalopathy-after-acute-carbon-monoxide-poisoning
#20
Ningjun Zhao, Pengchong Liang, Xiaoying Zhuo, Chenglei Su, Xuemei Zong, Bingnan Guo, Han Dong, Xianliang Yan, Shuqun Hu, Quanguang Zhang, Xu Tie
Delayed encephalopathy after acute carbon monoxide (CO) poisoning (DEACMP) is the most severe and clinically intractable complication that occurs following acute carbon monoxide poisoning. Unfortunately, the mechanism of DEACMP is still vague. Growing evidence indicates that delayed cerebral damage following CO poisoning is related to oxidative stress, abnormal neuro-inflammation, apoptosis and immune-mediated injury. Our recent report indicated that methylene blue (MB) may be a promising therapeutic agent in the prevention of neuronal cell death and cognitive deficits following transient global cerebral ischaemia (GCI)...
November 19, 2017: Basic & Clinical Pharmacology & Toxicology
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