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https://www.readbyqxmd.com/read/28925546/multidisciplinary-full-mouth-rehabilitation-with-soft-tissue-regeneration-in-the-esthetic-zone
#1
Anja Liebermann, Stefan Frei, Madalena Lucia Pinheiro Dias Engler, Otto Zuhr, Otto Prandtner, Daniel Edelhoff, Reza Saeidi Pour
OBJECTIVE: Oral rehabilitation often requires a multidisciplinary approach including restorative dentistry, prosthodontics, and periodontology to fulfill high esthetic and functional demands, frequently combined with changes in the vertical dimension. The presence of gingival recessions can be associated with numerous factors, such as brushing or preparation trauma and persistent inflammation of the gingiva due to inadequate marginal fit of restorations. Because gingival recessions can cause major esthetic and functional problems, obtaining stability of the gingival tissue around prosthetic restorations is of essential concern...
September 19, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28915051/reconfigurable-positioning-of-vertically-oriented-nanowires-around-topographical-features-in-an-ac-electric-field
#2
Sarah Boehm, Lan Lin, Nermina Brljak, Nicole Famularo, Theresa S Mayer, Christine D Keating
We report the effect of topographical features on gold nanowire assemblies in a vertically-applied AC electric field. Nanowires 300 nm in diameter × 2.5 µm long, and coated with ~30 nm silica shell, were assembled in aqueous solution between top and bottom electrodes, where the bottom electrode was patterned with cylindrical dielectric posts. Assemblies were monitored in real time using optical microscopy. Dielectrophoretic and electrohydrodynamic forces were manipulated through frequency and voltage variation, organizing nanowires parallel to the field lines, i...
September 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28913603/influence-of-anthropometry-tmd-and-sex-on-molar-bite-force-in-adolescents-with-and-without-orthodontic-needs
#3
Barbara de Lima Lucas, Taís de Souza Barbosa, Paula Midori Castelo, Maria Beatriz Duarte Gavião
PURPOSE: Bite force has been studied as representative of functional indices of mastication and its value may have diagnostic significance in disorders of the musculoskeletal system of facial bones. This study aimed to evaluate bite force in adolescents with and without orthodontic needs considering presence of temporomandibular disorders (TMD) as well as anthropometry: craniofacial dimensions and body mass index (BMI). METHODS: A total of 80 subjects were screened (61 females, 19 males; 18 ± 3 years old)...
September 14, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28912979/the-protocol-of-fixed-reconstruction-for-severely-worn-teeth-combined-with-anterior-deep-bite
#4
Ya-Wen Zhao, Rong Gao, Hui-Qiang Sun
Full mouth reconstruction is one of the most effective methods to restore severe worn teeth that have suffered reduced vertical dimension. Although the use of the overlay splint restoration for a trial period allowing the patient to adapt to an increased vertical dimension is the recognized method, the specific protocol from the transitional splint to the fixed reconstruction is yet to be established. This case report describes a 50-year-old female patient who has severely worn teeth combined with an anterior deep bite and chewing pain...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28902251/skeletal-effects-of-rme-in-the-transverse-and-vertical-dimensions-of-the-nasal-cavity-in-mouth-breathing-growing-children
#5
Mario Cappellette, Lucia Hatsue Yamamoto Nagai, Raquel Mori Gonçalves, Aparecida Keiko Yuki, Shirley Shizue Nagata Pignatari, Reginaldo Raimundo Fujita
Introduction: Maxillary constriction is a dentoskeletal deformity characterized by discrepancy in maxilla/mandible relationship in the transverse plane, which may be associated with respiratory dysfunction. Objective: The objective of this study was to evaluate the skeletal effects of RME on maxillary and nasal transverse dimensions and compare the differences between males and females. Methods: Sixty-one mouth-breathers patients with skeletal maxillary constriction (35 males and 26 females, mean age 9...
July 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28895751/extreme-skeletal-open-bite-correction-with-vertical-elastics
#6
Marco Antonio Cruz-Escalante, Aron Aliaga-Del Castillo, Luciano Soldevilla, Guilherme Janson, Marilia Yatabe, Ricardo Voss Zuazola
Severe skeletal open bites may be ideally treated with a combined surgical-orthodontic approach. Alternatively, compensations may be planned to camouflage the malocclusion with orthodontics alone. This case report describes the treatment of an 18-year-old man who presented with a severe open bite involving the anterior and posterior teeth up to the first molars, increased vertical dimension, bilateral Class III molar relationship, bilateral posterior crossbite, dental midline deviation, and absence of the maxillary right canine and the mandibular left first premolar...
September 12, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28889021/maxillary-sinuses-and-midface-in-patients-with-cleidocranial-dysostosis
#7
Tomasz Kulczyk, Agnieszka Przystańska, Artur Rewekant, Renata Turska-Malińska, Agata Czajka-Jakubowska
The cleidocranial dysplasia is general skeletal disorder with an autosomal dominant inheritance. It is manifested by many craniofacial abnormalities, of which the maxillary hypoplasia is the most evident. The aim of the study was to use CBCT to evaluate the volume of the maxillary sinuses and the dimensions of maxillae in patients with CCD and compare them with healthy individuals. Files of four children with cleidocranial dysplasia were investigated.Volume of every maxillary sinus as well as two dimensional measurements of distances between particular points of interest located on surface of maxilla were calculated from reconstructed CBCT examination...
September 6, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28883677/comparison-of-results-of-measurement-of-dimensions-of-the-placed-dental-implants-on-cone-beam-computed-tomography-with-dimensions-of-the-producers-of-the-implants
#8
Merisa Repesa, Amela Sofic, Selma Jakupovic, Selma Tosum, Lejla Kazazic, Almir Dervisevic
INTRODUCTION: One of the most frequently used method for scanning patients with indication for dental implantation in dentistry is cone beam computed tomography. Implantation, CBCT imaging and implant programme are inevitable when planning a successful replacement of lost teeth. CBCT offers exact information about available bone and its density, adjacent tooth roots, the place of mandibular canal and maxillary sinus and adjacent anatomical structure. AIM: The goal of this study is to estimate accuracy of measurements on CBCT images ofpatients who have implants of different producers and determine if there is any statistically significant correlation between four test groups regardless of the alloy of which implants are made...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28879228/thermodiffusion-in-multicomponent-n-alkane-mixtures
#9
Guillaume Galliero, Henri Bataller, Jean-Patrick Bazile, Joseph Diaz, Fabrizio Croccolo, Hai Hoang, Romain Vermorel, Pierre-Arnaud Artola, Bernard Rousseau, Velisa Vesovic, M Mounir Bou-Ali, José M Ortiz de Zárate, Shenghua Xu, Ke Zhang, François Montel, Antonio Verga, Olivier Minster
Compositional grading within a mixture has a strong impact on the evaluation of the pre-exploitation distribution of hydrocarbons in underground layers and sediments. Thermodiffusion, which leads to a partial diffusive separation of species in a mixture due to the geothermal gradient, is thought to play an important role in determining the distribution of species in a reservoir. However, despite recent progress, thermodiffusion is still difficult to measure and model in multicomponent mixtures. In this work, we report on experimental investigations of the thermodiffusion of multicomponent n-alkane mixtures at pressure above 30 MPa...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28876331/clinically-applicable-optical-imaging-technology-for-body-size-and-shape-analysis-comparison-of-systems-differing-in-design
#10
B Bourgeois, B K Ng, D Latimer, C R Stannard, L Romeo, X Li, J A Shepherd, S B Heymsfield
BACKGROUND/OBJECTIVES: Recent advances have extended anthropometry beyond flexible tape measurements to automated three-dimensional optical devices that rapidly acquire hundreds of body surface dimensions. Three new devices were recently introduced that share in common inexpensive optical cameras. The design, and thus potential clinical applicability, of these systems differ substantially leading us to critically evaluate their accuracy and precision. SUBJECTS/METHODS: 113 adult subjects completed evaluations by the three optical devices (KX-16 (16 stationary cameras), Proscanner (1 vertically oscillating camera), and Styku scanner (1 stationary camera)), air displacement plethysmography (ADP), dual-energy X-ray absorptiometry (DXA) and a flexible tape measure...
September 6, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28872722/impact-of-intentional-overload-on-joint-stability-of-internal-implant-abutment-connection-system-with-different-diameter
#11
Ji-Hye Lee, Won Lee, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho
PURPOSE: To evaluate the axial displacement of the implant-abutment assembly of different implant diameter after static and cyclic loading of overload condition. MATERIALS AND METHODS: An internal conical connection system with three diameters (Ø 4.0, 4.5, and 5.0) applying identical abutment dimension and the same abutment screw was evaluated. Axial displacement of abutment and reverse torque loss of abutment screw were evaluated under static and cyclic loading conditions...
September 5, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28866360/quantitative-assessment-of-mandibular-canal-compression-assessed-by-cone-beam-computed-tomography
#12
Fatima M Jadu, Daniah Alhazmi, Fatma F Badr, Ahmed M Jan
OBJECTIVE: The aim of this study was to objectively quantify the topographic relation of the mandibular canals, impacted third molars, and cortical plates using cone beam computed tomography (CBCT). STUDY DESIGN: A retrospective chart review was conducted using the database of a university-based imaging service. Two calibrated reviewers examined the CBCT images of 100 cases scheduled for mandibular third molar removal. They characterized the position and condition of the mandibular canal and measured its dimensions at 3 different points relative to the third molars...
August 2, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28863578/the-echolocation-transmission-beam-of-free-ranging-indo-pacific-humpback-dolphins-sousa-chinensis
#13
Liang Fang, Yuping Wu, Kexiong Wang, Matthew K Pine, Ding Wang, Songhai Li
While the transmission beam of odontocetes has been described in a number of studies, the majority of them that have measured the transmission beam in two dimensions were focused on captive animals. Within the current study, a dedicated cross hydrophone array with nine elements was used to investigate the echolocation transmission beam of free-ranging Indo-Pacific humpback dolphins. A total of 265 on-axis clicks were analyzed, from which the apparent peak to peak source levels ranged between 168 to 207 dB (mean 184...
August 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28863479/ag-fractal-structures-in-electroless-metal-deposition-systems-with-and-without-magnetic-field
#14
Huria Ibrahim, Hiba Farah, Amal Zein Eddin, Samih Isber, Rabih Sultan
Metal electrodeposition systems display tree-like structures with extensive ramification and a fractal character. Electrolysis is not a necessary route for the growth of such dendritic metal deposits. We can grow beautiful ramification patterns via a simple redox reaction. We present here a study of silver (Ag) deposits from the reduction of Ag(+) in (AgNO3) solution by metallic copper. The experiments are carried out in discotic geometry, in a Petri dish hosting a thin AgNO3 solution film. A variety of deposited structures and patterns is obtained at different Ag(+) concentrations, yet with essentially the same fractal dimension averaged at 1...
August 2017: Chaos
https://www.readbyqxmd.com/read/28861284/alveolar-socket-preservation-with-demineralised-bovine-bone-mineral-and-a-collagen-matrix
#15
Carlo Maiorana, Pier Paolo Poli, Matteo Deflorian, Tiziano Testori, Federico Mandelli, Heiner Nagursky, Raffaele Vinci
PURPOSE: The aim of the present study was to evaluate the healing of post-extraction sockets following alveolar ridge preservation clinically, radiologically, and histologically. METHODS: Overall, 7 extraction sockets in 7 patients were grafted with demineralised bovine bone mineral and covered with a porcine-derived non-crosslinked collagen matrix (CM). Soft tissue healing was clinically evaluated on the basis of a specific healing index. Horizontal and vertical ridge dimensional changes were assessed clinically and radiographically at baseline and 6 months after implant placement...
August 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28842754/chen-s-double-eyelid-fold-illusion-an-eye-size-assimilation-illusion-induced-by-a-supratarsal-fold-in-the-brow-eye-unit-a-preliminary-report
#16
Sheng-Ni Chen, Sheng-Hung Chen, Chen-Chia Chen, Chien-Lin Huang, Hao-Chih Tai, Yong-Ping Wang
BACKGROUND: Double eyelidplasty can enhance the eye size and facial attractiveness of Asian individuals with single eyelids. The authors hypothesize that a supratarsal fold can induce an eye size assimilation illusion to enhance eye dimensions and aesthetics, and seek to define the optimum vertical proportion between a supratarsal fold and the eye fissure associated with maximal induction of the size assimilation illusion. METHODS: A photometric study of the replicated photographs of ten female Taiwanese patients after double eyelidplasty was designed...
August 25, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28836025/anatomical-topography-of-the-inferior-lumbar-triangle-for-transversus-abdominis-block
#17
Gkionoul Nteli Chatzioglou, Hassan Bagheri, Yelda Pinar, Figen Govsa
BACKGROUND: Rapid development of anesthetic techniques of thoracic paravertebral block required to redefine anatomical landmarks of the inferior lumbar (Petit) triangle (ILT). Anesthesiologists are mainly interested in the ILT to perform the transversus abdominis plane (TAP) block. The aim of this study was to provide comprehensive information of the ILT to improve the success of TAP block. METHODS: Descriptional anatomy of ILTs such as dimensions, space, area, and types was analyzed in 25 preserved adult male cadavers...
August 23, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28833598/carbon-nanotube-confined-vertical-heterostructures-with-asymmetric-contacts
#18
Jin Zhang, Kenan Zhang, Bingyu Xia, Yang Wei, Dongqi Li, Ke Zhang, Zhixing Zhang, Yang Wu, Peng Liu, Xidong Duan, Yong Xu, Wenhui Duan, Shoushan Fan, Kaili Jiang
Van der Waals (vdW) heterostructures have received intense attention for their efficient stacking methodology with 2D nanomaterials in vertical dimension. However, it is still a challenge to scale down the lateral size of vdW heterostructures to the nanometer and make proper contacts to achieve optimized performances. Here, a carbon-nanotube-confined vertical heterostructure (CCVH) is employed to address this challenge, in which 2D semiconductors are asymmetrically sandwiched by an individual metallic single-walled carbon nanotube (SWCNT) and a metal electrode...
August 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28832742/ultrasound-parameters-of-normal-lacrimal-sac-and-chronic-dacryocystitis
#19
Marco Antonio de Campos Machado, João Amaro Ferrari Silva, Eduardo Alonso Garcia, Norma Allemann
PURPOSE: To compared the ultrasound findings of the lacrimal sac between subjects with normal lacrimal systems those with chronic dacryocystitis. METHODS: A retrospective study of 10 subjects with a normal lacrimal system (Group 1) and 10 with chronic dacryocystitis (Group 2) diagnosed according to B-mode ultrasound with a 10-MHz transducer and the direct-contact technique (AVISO, Quantel Medical) for lacrimal sac assessment. We analyzed the dimensions, features, and content of the sacs...
June 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28818510/breathing-mode-influence-on-craniofacial-development-and-head-posture
#20
Annel Chambi-Rocha, Maria Eugenia Cabrera-Domínguez, Antonia Domínguez-Reyes
OBJECTIVE: The incidence of abnormal breathing and its consequences on craniofacial development is increasing, and is not limited to children with adenoid faces. The objective of this study was to evaluate the cephalometric differences in craniofacial structures and head posture between nasal breathing (NB) and oral breathing (OB) children and teenagers with a normal facial growth pattern. METHOD: Ninety-eight 7-16 year-old patients with a normal facial growth pattern were clinically and radiographically evaluated...
August 14, 2017: Jornal de Pediatria
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