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https://www.readbyqxmd.com/read/28439649/differences-in-tibial-subchondral-bone-structure-evaluated-using-plain-radiographs-between-knees-with-and-without-cartilage-damage-or-bone-marrow-lesions-the-oulu-knee-osteoarthritis-study
#1
Jukka Hirvasniemi, Jérôme Thevenot, Ali Guermazi, Jana Podlipská, Frank W Roemer, Miika T Nieminen, Simo Saarakkala
OBJECTIVES: To investigate whether subchondral bone structure from plain radiographs is different between subjects with and without articular cartilage damage or bone marrow lesions (BMLs). METHODS: Radiography-based bone structure was assessed from 80 subjects with different stages of knee osteoarthritis using entropy of Laplacian-based image (ELap) and local binary patterns (ELBP), homogeneity index of local angles (HIAngles,mean), and horizontal (FDHor) and vertical fractal dimensions (FDVer)...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28436308/the-different-effects-of-intraoral-vertical-ramus-osteotomy-ivro-and-sagittal-split-ramus-osteotomy-ssro-on-mandibular-border-movement
#2
Hiroki Komori, Noriaki Kawanabe, Tomoki Kataoka, Yui Kato, Atsuro Fujisawa, Takashi Yamashiro, Hiroshi Kamioka
OBJECTIVES: This study investigated the different effects of intraoral vertical ramus osteotomy (IVRO) and sagittal split ramus osteotomy (SSRO) on mandibular border movement. METHODS: The participants included 22 patients receiving IVRO and 22 patients receiving SSRO who were treated at Okayama University Hospital. Their mandibular border movement was evaluated in three dimensions with 6° of freedom using an optical recording system. RESULTS: A strong correlation between condylar and lower incisor movement was observed during maximum jaw protrusion and laterotrusion...
April 23, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28435370/facial-profile-and-maxillary-arch-dimensions-in-unilateral-cleft-lip-and-palate-children-in-the-mixed-dentition-stage
#3
Vellore Kannan Gopinath, Ab Rani Samsudin, Siti Noor Fazliah Mohd Noor, Hady Youssef Mohamed Sharab
OBJECTIVES: The aim of this study was to evaluate the vertical and sagittal facial profile and maxillary arch width, depth, and length of patients with unilateral cleft lip and palate (UCLP) and to compare them with healthy noncleft children in the mixed dentition stage (7-13 years). MATERIALS AND METHODS: This study is conducted at Hospital Universiti Sains Malaysia. UCLP group comprised 48 patients with nonsyndromic UCLP who have had the lip and palate repaired, whereas the control group comprised 48 healthy noncleft cases...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28435368/correlation-between-frontal-sinus-dimensions-and-cephalometric-indices-a-cross-sectional-study
#4
Azita Tehranchi, Saeed Reza Motamedian, Sara Saedi, Sattar Kabiri, Shireen Shidfar
OBJECTIVE: Growth prediction plays a significant role in accurate diagnosis and treatment planning of orthodontics patients. It was hypothesized that the unique pattern of pneumatization of the frontal sinus as a component of craniofacial structure would influence the skeletal growth pattern and may be used as a growth predictor. MATERIALS AND METHODS: A total of 144 subjects (78 females and 66 males) with a mean age of 19.26 ± 4.66 years were included in this retrospective study...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28434682/a-proposed-linear-skeletal-distance-to-predict-occlusal-vertical-dimension-a-cephalometric-study
#5
Mohammed Nasser Alhajj, Ammar A Daer
STATEMENT OF PROBLEM: Establishing a correct occlusal vertical dimension is considered one of the most important aspects of facial esthetics for patients in need of oral rehabilitation. PURPOSE: The purpose of this retrospective study was to evaluate the use of a proposed linear skeletal distance to predict the appropriate occlusal vertical dimension. MATERIAL AND METHODS: A total of 93 digital cephalometric radiographs were collected in Joint Photographic Experts Group (JPEG) format (51 men, 42 women) from the archive of the orthodontics department at the Faculty of Dentistry, Sana'a University, Yemen...
April 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28429744/a-forest-of-sub-1-5-nm-wide-single-walled-carbon-nanotubes-over-an-engineered-alumina-support
#6
Ning Yang, Meng Li, Jörg Patscheider, Seul Ki Youn, Hyung Gyu Park
A precise control of the dimension of carbon nanotubes (CNTs) in their vertical array could enable many promising applications in various fields. Here, we demonstrate the growth of vertically aligned, single-walled CNTs (VA-SWCNTs) with diameters in the sub-1.5-nm range (0.98 ± 0.24 nm), by engineering a catalyst support layer of alumina via thermal annealing followed by ion beam treatment. We find out that the ion beam bombardment on the alumina allows the growth of ultra-narrow nanotubes, whereas the thermal annealing promotes the vertical alignment at the expense of enlarged diameters; in an optimal combination, these two effects can cooperate to produce the ultra-narrow VA-SWCNTs...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425488/an-analytic-approach-for-optimal-geometrical-design-of-gaas-nanowires-for-maximal-light-harvesting-in-photovoltaic-cells
#7
Dan Wu, Xiaohong Tang, Kai Wang, Xianqiang Li
Semiconductor nanowires(NWs) with subwavelength scale diameters have demonstrated superior light trapping features, which unravel a new pathway for low cost and high efficiency future generation solar cells. Unlike other published work, a fully analytic design is for the first time proposed for optimal geometrical parameters of vertically-aligned GaAs NW arrays for maximal energy harvesting. Using photocurrent density as the light absorbing evaluation standard, 2 μm length NW arrays whose multiple diameters and periodicity are quantitatively identified achieving the maximal value of 29...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28422534/in-situ-sampling-of-relative-dust-devil-particle-loads-and-their-vertical-grain-size-distributions
#8
Jan Raack, Dennis Reiss, Matthew R Balme, Kamal Taj-Eddine, Gian Gabriele Ori
During a field campaign in the Sahara Desert in southern Morocco, spring 2012, we sampled the vertical grain size distribution of two active dust devils that exhibited different dimensions and intensities. With these in situ samples of grains in the vortices, it was possible to derive detailed vertical grain size distributions and measurements of the lifted relative particle load. Measurements of the two dust devils show that the majority of all lifted particles were only lifted within the first meter (∼46...
April 19, 2017: Astrobiology
https://www.readbyqxmd.com/read/28419852/reliability-of-volumetric-and-surface-based-normalisation-and-smoothing-techniques-for-pet-analysis-of-the-cortex-a-test-retest-analysis-using-11-c-sch-23390
#9
Granville J Matheson, Per Stenkrona, Zsolt Cselényi, Pontus Plavén-Sigray, Christer Halldin, Lars Farde, Simon Cervenka
Parametric voxelwise analysis is a commonly used tool in neuroimaging, as it allows for identification of regions of effects in the absence of a strong a-priori regional hypothesis by comparing each voxel of the brain independently. Due to the inherent imprecision of single voxel measurements, spatial smoothing is performed to increase the signal-to-noise ratio of single-voxel estimates. In addition, smoothing compensates for imprecisions in anatomical registration, and allows for the use of cluster-based statistical thresholding...
April 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/28416835/-polymethylmethacrylate-augmentation-of-bone-cement-injectable-cannulated-pedicle-screws-was-used-to-treat-degenerative-lumbar-scoliosis-with-osteoporosis
#10
H L Sun, C D Li, X W Li, X D Yi, H Liu, H L Lu, H Li, Z R Yu, Y Wang
OBJECTIVE: To describe the application of polymethylmethacrylate (PMMA) augmentation of cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis. METHODS: Retrospective cohort study was used to compare cement injectable cannulated pedicle screws (CICPs) group with PMMA augmentation and control group with traditional method in the correction surgery for Lenke-silva level III and level IV degenerative scoliosis cases with osteoporosis...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28410716/clinical-performance-in-continuous-curvilinear-capsulorhexis-creation-supported-by-a-digital-image-guidance-system
#11
Yesim Haeussler-Sinangin, Dorothee Dahlhoff, Tim Schultz, H Burkhard Dick
PURPOSE: To test whether a default capsulorhexis diameter could be attained more precisely when manual continuous curvilinear capsulorhexis (CCC) creation was supported by a biomorphological detection unit. SETTING: Ruhr University Eye Hospital, Bochum, Germany. DESIGN: Prospective interventional study. METHODS: Patients were assigned to either of 2 groups. In the first group, a digital image system was applied to guide capsulorhexis...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28392817/changes-of-the-mandible-after-orthodontic-treatment-with-and-without-extraction-of-four-premolars
#12
Tahereh Hosseinzadeh-Nik, Armin Eftekhari, Atefe Saffar Shahroudi, Mahammad Javad Kharrazifard
OBJECTIVES: This study was designed to assess the changes of the mandible of patients who underwent orthodontic treatment with or without extraction of four premolars. MATERIALS AND METHODS: Eighteen Class I bimaxillary protrusion patients treated with extraction of four first premolars and retraction of anterior teeth and 18 Class I non-extraction patients with a mean age of 16.38±0.4 years were selected. Cephalometric analysis was performed before and after treatment...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28389179/bone-anchored-intermaxillary-elastics-in-an-asymmetric-class-ii-malocclusion-a-case-report
#13
Antonio Manni, Daniela Lupini, Mauro Cozzani
PURPOSE: A 13-year-old male patient, presenting a Class II, division 1 malocclusion and crowding was treated by an innovative technique. METHODS: After rapid palatal expansion by a Hyrax appliance, the teeth were bonded with straightwire brackets. Two miniscrews were inserted, one per side, in the mandibular buccal bone between the roots of the mandibular first molar and the second premolar. On the right side, the miniscrew implant was connected to the hook clamped on a 0...
April 4, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28376676/evaluation-of-maxillary-sinus-volume-and-dimensions-in-different-vertical-face-growth-patterns-a-study-of-cone-beam-computed-tomography
#14
Rıdvan Okşayan, Oral Sökücü, Seher Yeşildal
OBJECTIVE: This study aimed to compare sinus volume and dimensions in patients with high-, low-, and normal-angle vertical growth patterns using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: According to skeletal vertical face growth patterns, 60 adults (31 female, 29 male, average age: 29.90 ± 10.91 years) were divided into three groups equally: high-angle, low-angle, and normal-angle groups. Cephalometric tracings were obtained from CBCT images and SN-GoGn (angle between Sella-Nasion line and Gonion-Gnathion line) cephalometric angular measurements used for the classification of skeletal vertical pattern evaluations...
April 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28367745/the-intersection-of-abandonment-hiv-positive-status-and-residential-care-for-a-group-of-perinatally-infected-adolescents
#15
REVIEW
Jeanette Schmid, Jenita Chiba
Although anti-retroviral treatments have significantly reduced the incidence of mother-to-child transmission of HIV and AIDS, there remains, for the foreseeable future, a group of adolescents who have been perinatally infected. Noting the paucity of information regarding the impact of paediatric AIDS and its intersection with residential care, this paper investigates the lived realities of 20 South African adolescents who were vertically infected with HIV and AIDS, were abandoned, and have been raised in residential care...
March 2017: African Journal of AIDS Research: AJAR
https://www.readbyqxmd.com/read/28364892/management-of-overbite-with-the-invisalign-appliance
#16
Roozbeh Khosravi, Bobby Cohanim, Philippe Hujoel, Sam Daher, Michelle Neal, Weitao Liu, Greg Huang
INTRODUCTION: Most of the published literature on the management of overbite with the Invisalign appliance (Align Technology, Santa Clara, Calif) consists of case reports and case series. METHODS: In this retrospective study of 120 patients, we sought to assess the nature of overbite changes with the Invisalign appliance. Records were collected from 3 practitioners, all experienced with the Invisalign technique. The patients were consecutively treated adults (>18 years old) who underwent orthodontic treatment only with the Invisalign appliance...
April 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28362359/self-organized-tio%C3%A2-mno%C3%A2-nanotube-arrays-for-efficient-photocatalytic-degradation-of-toluene
#17
María C Nevárez-Martínez, Marek P Kobylański, Paweł Mazierski, Jolanta Wółkiewicz, Grzegorz Trykowski, Anna Malankowska, Magda Kozak, Patricio J Espinoza-Montero, Adriana Zaleska-Medynska
Vertically oriented, self-organized TiO₂-MnO₂ nanotube arrays were successfully obtained by one-step anodic oxidation of Ti-Mn alloys in an ethylene glycol-based electrolyte. The as-prepared samples were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), UV-Vis absorption, photoluminescence spectroscopy, X-ray diffraction (XRD), and micro-Raman spectroscopy. The effect of the applied potential (30-50 V), manganese content in the alloy (5-15 wt. %) and water content in the electrolyte (2-10 vol...
March 31, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28362187/three-dimensional-changes-in-head-shape-after-extended-sagittal-strip-craniectomy-with-wedge-ostectomies-and-helmet-therapy
#18
Pang-Yun Chou, Rami R Hallac, Shitel Patel, Min-Jeong Cho, Neil Stewart, James M Smartt, James R Seaward, Alex A Kane, Christopher A Derderian
OBJECTIVE Outcome studies for sagittal strip craniectomy have largely relied on the 2D measure of the cephalic index (CI) as the primary indicator of head shape. The goal of this study was to measure the 2D and 3D changes in head shape that occur after sagittal strip craniectomy and postoperative helmet therapy. METHODS The authors performed a retrospective review of patients treated with sagittal strip craniectomy at their institution between January 2012 and October 2015. Inclusion criteria were as follows: 1) isolated sagittal synostosis; 2) age at surgery < 200 days; and 3) helmet management by a single orthotist...
March 31, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28361607/fabrication-characterization-and-application-of-sugar-microneedles-for-transdermal-drug-delivery
#19
Hiep X Nguyen, Ajay K Banga
AIM: This study aimed to fabricate, characterize and use maltose microneedles for transdermal delivery of doxorubicin. MATERIALS & METHODS: Microneedles were fabricated by micromolding technique and evaluated for dimensions, mechanical properties and in situ dissolution. Microporation of human cadaver skin was confirmed by dye binding, histology, pore uniformity, confocal laser microscopy and skin integrity measurement. In vitro permeation studies were performed on vertical Franz diffusion cells...
March 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28359871/evaluation-of-functional-parameters-in-the-occlusion-of-complete-denture-wearers-before-and-after-prosthetic-treatment
#20
Kuć Joanna, Sierpińska Teresa, Gołębiewska Maria
PURPOSE: The aim of the study was to evaluate functional parameters of the occlusion in complete denture wearers before and after prosthetic treatment. METHODS: The sample used as the basis for the present study consisted of 50 healthy Caucasian patients (35 women and 15 men), aged from 44 to 86 years (mean=69.18±10), with a total deficiency of teeth. All patients received new complete dentures. Each patient underwent lateral radiograph with the presence of complete dentures, both before (initially existing dentures) and after the prosthetic treatment (new restorations)...
March 27, 2017: Journal of Prosthodontic Research
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