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determinants of occlusal morphology

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https://www.readbyqxmd.com/read/29775153/feasibility-safety-and-changes-in-systolic-blood-pressure-associated-with-endovascular-revascularization-of-symptomatic-and-chronically-occluded-cervical-internal-carotid-artery-using-a-newly-suggested-radiographic-classification-of-chronically-occluded-cervical
#1
David Hasan, Mario Zanaty, Robert M Starke, Elias Atallah, Nohra Chalouhi, Pascal Jabbour, Amit Singla, Waldo R Guerrero, Daichi Nakagawa, Edgar A Samaniego, Nnenna Mbabuike, Rabih G Tawk, Adnan H Siddiqui, Elad I Levy, Roberta L Novakovic, Jonathan White, Clemens M Schirmer, Thomas G Brott, Hussain Shallwani, L Nelson Hopkins
OBJECTIVE The overall risk of ischemic stroke from a chronically occluded internal carotid artery (COICA) is around 5%-7% per year despite receiving the best available medical therapy. Here, authors propose a radiographic classification of COICA that can be used as a guide to determine the technical success and safety of endovascular recanalization for symptomatic COICA and to assess the changes in systemic blood pressure following successful revascularization. METHODS The radiographic images of 100 consecutive subjects with COICA were analyzed...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29765390/preclinical-evaluation-of-the-nevatm-stent-retriever-safety-and-efficacy-in-the-swine-thrombectomy-model
#2
Arthur J Ulm, Tigran Khachatryan, Arthur Grigorian, Raul G Nogueira
Background: A novel stent retriever device with an enhanced radial force profile, enlarged offset openings, and a closed distal end has been developed. Objective: Evaluate the safety and effectiveness of the NeVaTM thrombectomy device in animal model of thrombo-occlusive disease. Materials and Methods: Seven swine were used in safety and efficacy studies. Thrombo-occlusive disease was modeled using 4 emboli morphologies; 2 distinct models of autologous whole blood thrombi, plasma-enriched thrombi, and Onyx® emboli...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29732299/three-dimensional-morphological-evaluation-of-the-hard-palate-in-korean-adults-with-mild-to-moderate-obstructive-sleep-apnea
#3
Chen Yu, Hyo-Won Ahn, Seong-Hun Kim
Objective: The purpose of this study was to evaluate differences in three-dimensional (3D) morphology of the hard palate between Korean adults with and without mild-to-moderate obstructive sleep apnea (OSA) using cone-beam computed tomographic (CBCT) data. Methods: The protocol for the two-dimensional (2D) and 3D mathematical modeling was established by analyzing CBCT images of 30 adults with OSA and 30 matched controls without OSA, using MIMICS software. The linear and angular measurements were also determined using this software...
May 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29724245/renal-cell-carcinoma-with-venous-extension-prediction-of-inferior-vena-cava-wall-invasion-by-mri
#4
Lisa C Adams, Bernhard Ralla, Yi-Na Y Bender, Keno Bressem, Bernd Hamm, Jonas Busch, Florian Fuller, Marcus R Makowski
BACKGROUND: Renal cell carcinoma (RCC) are accompanied by inferior vena cava (IVC) thrombus in up to 10% of the cases, with surgical resection remaining the only curative option. In case of IVC wall invasion, the operative procedure is more challenging and may even require IVC resection. This study aims to determine the diagnostic performance of contrast-enhanced magnetic resonance imaging (MRI) for the assessment of wall invasion by IVC thrombus in patients with RCC, validated with intraoperative findings...
May 3, 2018: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/29713525/efficacy-of-osthole-in-management-of-hypoperfused-retina
#5
Ran Du, Zhao-Yang Meng, Jia-Lin Wang, Yan-Ling Wang
Purpose: To determine the effect of osthole on the retina in a chronic cerebral hypoperfusion (CCH) rat model and to investigate its therapeutic activity. Methods: Seventy-two rats were randomly allocated into 6 groups. CCH was induced by permanent bilateral common carotid artery occlusion (BCCAO) in five groups. Sham surgery was performed without occlusion of the artery in the sixth group (control group). Animals were administered with saline (model group), osthole (osthole-IG group), aspirin (aspirin group), or ginaton (ginaton group); the osthole-PI group was performed with peribulbar injection of osthole...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29691907/investigation-of-maxillofacial-morphology-and-oral-characteristics-with-turner-syndrome-and-early-mixed-dentition
#6
Nozomi Ahiko, Yoshiyuki Baba, Michiko Tsuji, Reiko Horikawa, Keiji Moriyama
Turner syndrome (TS) is associated with an X chromosome abnormality in women and is characterized by infantilism, congenital webbed neck, and cubitus valgus. The aim of this study was to determine the maxillofacial morphology and oral characteristics of Japanese girls (mean age, 8.5 years) with TS and early mixed dentition. Lateral cephalograms obtained at the first visit were used to analyze maxillofacial morphology. Oral characteristics were identified using orthopantomograms, intraoral photographs, and study casts...
April 25, 2018: Congenital Anomalies
https://www.readbyqxmd.com/read/29685399/relationship-between-the-curve-of-spee-and-craniofacial-variables-a-regression-analysis
#7
Abdelali Halimi, Hicham Benyahia, Mohamed-Faouzi Azeroual, Loubna Bahije, Fatima Zaoui
INTRODUCTION: The aim of this regression analysis was to identify the determining factors, which impact the curve of Spee during its genesis, its therapeutic reconstruction, and its stability, within a continuously evolving craniofacial morphology throughout life. MATERIAL AND METHODS: We selected a total of 107 patients, according to the inclusion criteria. A morphological and functional clinical examination was performed for each patient: plaster models, tracing of the curve of Spee, crowding, Angle's classification, overjet and overbite were thus recorded...
April 20, 2018: International Orthodontics
https://www.readbyqxmd.com/read/29679269/cytotoxicity-and-histopathological-analysis-of-titanium-nanoparticles-via-artemia-salina
#8
Supicha Kachenton, Wannee Jiraungkoorskul, Niwat Kangwanrangsan, Tawewan Tansatit
The consumption trend of nanoparticles by industry in this moment pays attention to titanium nanoparticles (TiNPs), due to their various applications: personal care products, household products, food industry, electronic devices, and healthcare products. Rising consumption of TiNPs without specific regulatory criteria for control safety releasing quantification leads to concern on the topic of environmental contamination and injurious effect. Therefore, this study investigates TiNP toxicities on aquatic animals representing hazardous effects to natural water resource, by determining 24-h LC50 of TiNPs with histopathology investigation...
April 20, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29678936/effect-of-stroke-thrombolysis-predicted-by-distal-vessel-occlusion-detection
#9
Wolfgang G Kunz, Matthias P Fabritius, Wieland H Sommer, Christopher Höhne, Pierre Scheffler, Lukas T Rotkopf, Wolfgang P Fendler, Bastian O Sabel, Felix G Meinel, Franziska Dorn, Birgit Ertl-Wagner, Maximilian F Reiser, Kolja M Thierfelder
OBJECTIVE: Among ischemic stroke patients with negative CT angiography (CTA), we aimed to determine the predictive value of enhanced distal vessel occlusion detection using CT perfusion postprocessing (waveletCTA) for the treatment effect of IV thrombolysis (IVT). METHODS: Patients were selected from 1,851 consecutive patients who had undergone CT perfusion. Inclusion criteria were (1) significant cerebral blood flow (CBF) deficit, (2) no occlusion on CTA, and (3) infarction confirmed on follow-up...
April 20, 2018: Neurology
https://www.readbyqxmd.com/read/29660547/surgical-treatment-of-large-or-giant-fusiform-middle-cerebral-artery-aneurysms-a-case-series
#10
Feng Xu, Bin Xu, Lei Huang, Ji Xiong, Yuxiang Gu, Michael T Lawton
BACKGROUND: Management of large or giant fusiform middle cerebral artery (MCA) aneurysms represents a significant challenge. OBJECTIVE: To describe the author's experience in the treatment of large or giant fusiform MCA aneurysm by using various surgical techniques. METHODS: We retrospectively reviewed a database of aneurysm treated at our division between 2015 and 2017. RESULTS: Overall, 20 patients (11 males, 9 females) were identified with a mean age of 40...
April 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29660138/orthodontic-thermoformed-retainers-a-two-arm-laboratory-study-into-post-fabrication-outcomes
#11
Esma J Doğramacı, David Wr Chubb, Giampiero Rossi-Fedele
BACKGROUND: Retainers are commonly used to maintain post-orthodontic occlusion stability. We aimed to determine post-fabrication thickness and thinning rate of thermoformed retainers. MATERIALS AND METHODS: Forty-eight retainers were fabricated from polyethylenterepthalat-glycol copolyester or polypropylene blanks, using vacuum- or pressure-thermoforming. Retainer thickness was measured at multiple locations. RESULTS: Thinning rate had a broad range: the mid-labial incisor region of 1mm polyethylenterepthalat-glycol copolyester pressure-thermoformed mandibular retainers had the greatest thinning rate (68...
April 16, 2018: Australian Dental Journal
https://www.readbyqxmd.com/read/29643809/examination-of-the-role-of-mitochondrial-morphology-and-function-in-the-cardioprotective-effect-of-sodium-nitrite-administered-24-h-before-ischemia-reperfusion-injury
#12
Vivien Demeter-Haludka, Mária Kovács, Alexandra Petrus, Roland Patai, Danina M Muntean, László Siklós, Ágnes Végh
Background: We have previous evidence that in anesthetized dogs the inorganic sodium nitrite protects against the severe ventricular arrhythmias, resulting from coronary artery occlusion and reperfusion, when administered 24 h before. The present study aimed to examine, whether in this effect changes in mitochondrial morphology and function would play a role. Methods: Thirty dogs were infused intravenously either with saline ( n = 15) or sodium nitrite (0.2 μmol/kg/min; n = 15) for 20 min, and 24 h later, 10 dogs from each group were subjected to a 25 min period of occlusion and then reperfusion of the left anterior descending coronary artery...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29629322/oral-pathology-in-forensic-investigation
#13
REVIEW
Thorakkal Shamim
Forensic odontology is the subdiscipline of dentistry which analyses dental evidence in the interest of justice. Oral pathology is the subdiscipline of dentistry that deals with the pathology affecting the oral and maxillofacial regions. This subdiscipline is utilized for identification through oral and maxillofacial pathologies with associated syndromes, enamel rod patterns, sex determination using exfoliative cytology, identification from occlusal morphology of teeth, and deoxyribonucleic acid profiling from teeth...
January 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29608919/morphological-properties-of-the-occlusion-body-of-adoxophyes-orana-granulovirus
#14
Keiko Tsuruta, Jörg T Wennmann, Yasuhisa Kunimi, Maki N Inoue, Madoka Nakai
A granulovirus (GV) that produces occlusion bodies (OBs) having an unusual morphology was found in an Adoxophyes sp. (Lepidoptera: Tortricidae) larva in a tea field in Miyazaki Prefecture, Japan. This isolate is considered to be a mutant of Adoxophyes orana granulovirus, designated AdorGV-M, because the nucleotide sequence of its genome is 99.7% identical to that of an English isolate of AdorGV, AdorGV-E. AdorGV-E produces typical ovocylindrical OBs that contain one occlusion-derived virus (ODV) per OB. On the other hand, AdorGV-M produces large cuboidal OBs, but the number of ODVs per OB was unknown...
March 30, 2018: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29597061/individuality-of-masticatory-performance-and-of-masticatory-muscle-temporal-parameters
#15
Claire D Tewksbury, Kathryn X Callaghan, Brent A Fulks, Geoffrey E Gerstner
OBJECTIVE: Mammalian mastication serves to improve intra-oral food reduction. Insufficient food reduction creates potential swallowing problems, whereas over-reduction may accelerate tooth wear and increase feeding time. Either extreme has consequences. The study's objectives were: (1) to study the relationship between food reduction, number of chews in a sequence, and chewing rate, (2) to study how controlling the number of chews and chewing rate variability affects food reduction, and (3) to assess how dentoskeletal morphological and electromyographical (EMG) characteristics impact food reduction...
March 20, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29593574/the-use-of-biophysical-flow-models-in-the-surgical-management-of-patients-affected-by-chronic-thromboembolic-pulmonary-hypertension
#16
Martina Spazzapan, Priya Sastry, John Dunning, David Nordsletten, Adelaide de Vecchi
Introduction: Chronic Thromboembolic Pulmonary Hypertension (CTEPH) results from progressive thrombotic occlusion of the pulmonary arteries. It is treated by surgical removal of the occlusion, with success rates depending on the degree of microvascular remodeling. Surgical eligibility is influenced by the contributions of both the thrombus occlusion and microvasculature remodeling to the overall vascular resistance. Assessing this is challenging due to the high inter-individual variability in arterial morphology and physiology...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29576054/salvianolic-acid-a-attenuates-ischemia-reperfusion-induced-rat-brain-damage-by-protecting-the-blood-brain-barrier-through-mmp-9-inhibition-and-anti-inflammation
#17
Wen Zhang, Jun-Ke Song, Xue Zhang, Qi-Meng Zhou, Guo-Rong He, Xiao-Na Xu, Yan Rong, Wen-Xia Zhou, Guan-Hua DU
Salvianolic acid A (SAA) is a water-soluble component from the root of Salvia Miltiorrhiza Bge, a traditional Chinese medicine, which has been used for the treatment of cerebrovascular diseases for centuries. The present study aimed to determine the brain protective effects of SAA against cerebral ischemia reperfusion injury in rats, and to figure out whether SAA could protect the blood brain barrier (BBB) through matrix metallopeptidase 9 (MMP-9) inhibition. A focal cerebral ischemia reperfusion model was induced by middle cerebral artery occlusion (MCAO) for 1...
March 2018: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29570882/t-2-t-1%C3%AF-and-t-raff4-detect-early-regenerative-changes-in-mouse-ischemic-skeletal-muscle
#18
Hanne Laakso, Galina Wirth, Petra Korpisalo, Elias Ylä-Herttuala, Shalom Michaeli, Seppo Ylä-Herttuala, Timo Liimatainen
The identification of areas with regenerative potential in ischemic tissues would allow the targeting of treatments supporting tissue recovery. The regeneration process involves the activation of several cellular and molecular responses which could be detected using magnetic resonance imaging (MRI). However, to date, magnetic resonance (MR) relaxation parameters have received little attention in the diagnosis and follow-up of limb ischemia. The purpose of this study was to evaluate the feasibility of different MRI relaxation and diffusion tensor imaging parameters in the detection of areas showing early signs of regeneration in ischemic mouse skeletal muscles...
March 23, 2018: NMR in Biomedicine
https://www.readbyqxmd.com/read/29551938/intervention-effect-of-total-flavonoids-of-ilex-pubesceus-on-tolerant-rat-models-under-cerebral-anoxia
#19
Le Kang, Mingsan Miao
Objective: To observe the intervention effect of total flavonoid of ilex pubesceus on animal models of cerebral ischemic tolerance. Methods: A rat model of global-focal cerebral ischemic tolerance was established by blocking bilateral common carotid artery blood flow and occluding left middle cerebral artery using thread-occlusion method. After the first operation, the Ginaton group and large-dosage, medium-dosage and small-dosage groups of total flavonoid of ilex pubesceus were given intragastric administration of corresponding drugs...
December 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29520183/natural-history-of-untreated-coronary-total-occlusions-revealed-with-follow-up-semi-automated-quantitative-coronary-ct-angiography-the-morphological-characteristics-of-initial-ct-predict-occlusion-shortening
#20
Qian Wu, Mengmeng Yu, Yuehua Li, Wenbin Li, Zhigang Lu, Meng Wei, Jing Yan, Jiayin Zhang
Objective: To investigate the morphological changes of coronary chronic total occlusion (CTO) as determined by coronary computed tomography angiography (CCTA) follow-up using semi-automated quantitative analysis. Materials and Methods: Thirty patients with 31 CTO lesions confirmed by invasive coronary angiography and baseline/follow-up CCTA were retrospectively included. CTOs were quantitatively analyzed by a semi-automated coronary plaque analysis software (Coronary Plaque Analysis, version 2...
March 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
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