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https://www.readbyqxmd.com/read/27909818/presto-lift-a-facelift-that-preserves-the-retaining-ligaments-and-smas-tethering
#1
Wolfgang Funk
BACKGROUND: Producing youthful facial appearance by face-lifting often comes along with an undesired loss of patient's individual phenotype. This may result from insufficient preservation of retaining ligaments, the "guardians of facial identify," and from severance of the intersegmental connections of the superficial musculo-aponeurotic system (SMAS), which tether, structure, and compartmentalize facial soft tissue into defined, relevant anatomical zones. METHODS: The technique reported here preserves most retaining ligaments...
December 2, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27882311/retrospective-clinical-study-of-an-implant-with-a-sandblasted-large-grit-acid-etched-surface-and-internal-connection-analysis-of-short-term-success-rate-and-marginal-bone-loss
#2
Jae-Wang Lee, Jun Hyeong An, Sang-Hoon Park, Jong-Hyon Chong, Gwang-Seok Kim, JeongJoon Han, Seunggon Jung, Min-Suk Kook, Hee-Kyun Oh, Sun-Youl Ryu, Hong-Ju Park
BACKGROUND: The purpose of this retrospective study was to evaluate the clinical utility of an implant with a sandblasted, large-grit, acid-etched (SLA) surface and internal connection. METHODS: Six patients who received dental implants in the Department of Oral and Maxillofacial Surgery, Chonnam National University Dental Hospital, were analyzed by factors influencing the success rate and marginal bone loss. Factors included patient's age, sex, implant installation site, whether bone graft was done, type of bone graft materials, approaching method if sinus lift was done, and the size of the fixture...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27882310/minimal-invasive-horizontal-ridge-augmentation-using-subperiosteal-tunneling-technique
#3
Hyun-Suk Kim, Young-Kyun Kim, Pil-Young Yun
BACKGROUND: The goal of this study was to retrospectively evaluate the prognosis of minimal invasive horizontal ridge augmentation (MIHRA) technique using small incision and subperiosteal tunneling technique. METHODS: This study targeted 25 partially edentulous patients (10 males and 15 females, mean age 48.8 ± 19.7 years) who needed bone graft for installation of the implants due to alveolar bone deficiency. The patients took the radiographic exam, panoramic and periapical view at first visit, and had implant fixture installation surgery...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27882289/integrated-assembly-and-motion-planning-using-regrasp-graphs
#4
Weiwei Wan, Kensuke Harada
This paper presents an integrated assembly and motion planning system to recursively find the assembly sequence and motions to assemble two objects with the help of a horizontal surface as the supporting fixture. The system is implemented in both assembly level and motion level. In the assembly level, the system checks all combinations of the assembly sequences and gets a set of candidates. Then, for each candidate assembly sequence, the system incrementally builds regrasp graphs and performs recursive search to find a pick-and-place motion in the motion level to manipulate the base object as well as to assemble the other object to the base...
2016: Robotics and Biomimetics
https://www.readbyqxmd.com/read/27878769/to-what-extent-residual-alveolar-ridge-can-be-preserved-by-implant-a-systematic-review
#5
REVIEW
Ahmed Khalifa Khalifa, Masahiro Wada, Kazunori Ikebe, Yoshinobu Maeda
BACKGROUND: It has been reported that the load for (or to) implant-supported restoration may lead to bone remodeling as bone resorption and/or formation. While many authors supported the process of bone resorption, others elaborated bone apposition and increasing bone density close and remote to implant body (or fixture). This may suggest the role of the implant to reserve alveolar ridge from physiologic/pathologic resorption. The aim of this systematic review was to predict to how extend dental implants can preserve the residual alveolar ridge based on previous clinical investigations...
December 2016: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27875120/new-frontiers-in-robotic-surgery-the-latest-high-tech-surgical-tools-allow-for-superhuman-sensing-and-more
#6
Michele Solis
Over the past 30 years, robots have become standard fixtures in operating rooms. During brain surgery, a NeuroMate robot may guide a neurosurgeon to a target within the pulsing cortex. In orthopedics, a Mako robot sculpts and drills bone during knee and hip replacement surgery. Dominating the general surgery field is the da Vinci robot, a multiarmed device that allows surgeons to conduct precise movements of tools through small incisions that they could not manage with their own hands.
November 2016: IEEE Pulse
https://www.readbyqxmd.com/read/27863857/retention-and-wear-behaviors-of-two-implant-overdenture-stud-type-attachments-at-different-implant-angulations
#7
Jae-Won Choi, Ji-Hyeon Bae, Chang-Mo Jeong, Jung-Bo Huh
STATEMENT OF PROBLEM: Implant angulation should be considered when selecting an attachment. Some in vitro studies have investigated the relationship between implant angulation and changes in the retention force of the stud attachment, but few studies have evaluated the effect of cyclic loading and repeated cycles of insertion and removal on the stud attachment. PURPOSE: The purpose of this in vitro study was to evaluate the effects of implant angulation on the retentive characteristics of overdentures with 2 different stud attachments, an experimental system and O-rings in red and orange, after cyclic loading and repeated insertion and removal cycles...
November 15, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27858555/the-occurrence-of-progressive-bone-loss-around-the-anodized-surface-implants-and-rbm-implants-a-retrospective-cohort-study
#8
Hee-Chang Kim, Shin-Young Park, Min-Su Han, Yong-Moo Lee, Young Ku, In-Chul Rhyu, Yang-Jo Seol
BACKGROUND: This study was performed to evaluate the occurrence of progressive bone loss around implants with different implant surfaces. METHODS: We retrospectively examined 2,517 implants in 903 patients, including 1,147 anodized-surface implants in 454 patients and 1,370 resorbable blasting media (RBM)-surface implants in 449 patients, which were placed from January 2006 to December 2010. Through regular check-up radiographs and records, the presence of progressive bone loss up to more than 50% of the fixture length was investigated...
November 18, 2016: Journal of Periodontology
https://www.readbyqxmd.com/read/27857291/miniaturized-led-primary-optics-design-used-for-short-distance-color-mixing
#9
Tsung-Xian Lee, Meng-Che Tsai, Shuo-Chieh Chang, Kuei-Chun Liu
Color-tunable LED light fixtures generally change colors by controlling LEDs of multiple colors. This type of light source requires additional secondary optics and light-mixing distances to deliver color-mixing functions and perform high color uniformity. However, the color-mixing elements increase the optics size, resulting in more difficulties in making tiny lighting fixtures. Therefore, in this study, we introduce a LED primary optics design method that retains standard LED package size while featuring a color-mixing chamber...
November 10, 2016: Applied Optics
https://www.readbyqxmd.com/read/27848100/stress-distribution-difference-between-lava-ultimate-full-crowns-and-ips-e-max-cad-full-crowns-on-a-natural-tooth-and-on-tooth-shaped-implant-abutments
#10
Ivo Krejci, René Daher
The goal of this short communication is to present finite element analysis comparison of the stress distribution between CAD/CAM full crowns made of Lava Ultimate and of IPS e.max CAD, adhesively luted to natural teeth and to implant abutments with the shape of natural teeth. Six 3D models were prepared using a 3D content-creating software, based on a micro-CT scan of a human mandibular molar. The geometry of the full crown and of the abutment was the same for all models representing Lava Ultimate full crowns (L) and IPS e...
November 15, 2016: Odontology
https://www.readbyqxmd.com/read/27836503/in-vitro-hip-testing-in-the-international-society-of-biomechanics-coordinate-system
#11
Richard J van Arkel, Jonathan R T Jeffers
Many innovative experiments are designed to answer research questions about hip biomechanics, however many fail to define a coordinate system. This makes comparisons between studies unreliable and is an unnecessary hurdle in extrapolating experimental results to clinical reality. The aim of this study was to present a specimen mounting protocol which aligns and registers hip specimens in the International Society of Biomechanics (ISB) coordinate system, which is defined by bony landmarks that are identified by palpation of the patient׳s body...
October 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27832717/secukinumab-provides-better-relief-from-the-impact-of-psoriasis-on-daily-activities-and-personal-relationships-than-etanercept-results-of-two-phase-3-placebo-controlled-randomized-clinical-trials-in-moderate-to-severe-psoriasis
#12
Neil J Korman, Howard Sofen, Scott Fretzin, Phoebe Rich, Yang Zhao, Vivian Herrera, Judit Nyirady, Nicole Williams, Margaret Mordin, Stephen Tyring
BACKGROUND: Psoriasis can greatly impact patients' lives, influencing what clothing they wear and impairing their sexual functioning. OBJECTIVE: To provide a detailed comparison of the impact of secukinumab versus etanercept on enabling patients with psoriasis to have more normal lives with respect to daily activities (e.g., choosing clothing) and personal relationships (e.g., sexual functioning). METHODS: Baseline to Week 52 ERASURE and FIXTURE data for secukinumab 300 mg and etanercept were analyzed...
November 11, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27826390/prospective-randomized-clinical-trial-of-hydrophilic-tapered-implant-placement-at-maxillary-posterior-area-6-weeks-and-12-weeks-loading
#13
Seong-Beom Kim, Pil-Young Yun, Sang-Yun Kim, Yang-Jin Yi, Ji-Yun Kim, Young-Kyun Kim
PURPOSE: Early loading of implant can be determined by excellent primary stability and characteristic of implant surface. The implant system with recently improved surface can have load application 4-6 weeks after installing in maxilla and mandible. This study evaluated the effect of healing period to the stability of hydrophilic tapered-type implant at maxillary posterior area. MATERIALS AND METHODS: This study included 30 patients treated by hydrophilic tapered-type implants (total 41 implants at maxilla) and classified by two groups depending on healing period...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826389/influence-of-the-connection-design-and-titanium-grades-of-the-implant-complex-on-resistance-under-static-loading
#14
Su-Jung Park, Suk-Won Lee, Richard Leesungbok, Su-Jin Ahn
PURPOSE: The purpose of this study was to evaluate the resistance to deformation under static overloading by measuring yield and fracture strength, and to analyze the failure characteristics of implant assemblies made of different titanium grades and connections. MATERIALS AND METHODS: Six groups of implant assemblies were fabricated according to ISO 14801 (n=10). These consisted of the combinations of 3 platform connections (external, internal, and morse tapered) and 2 materials (titanium grade 2 and titanium grade 4)...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27824504/repeatability-study-of-replicate-crash-tests-a-signal-analysis-approach
#15
Jeremy Seppi, Jacek Toczyski, Jeff R Crandall, Jason Kerrigan
OBJECTIVE: To provide an objective basis on which to evaluate the repeatability of vehicle crash test methods, a recently developed signal analysis method was used to evaluate correlation of sensor time history data between replicate vehicle crash tests. The goal of this study was to evaluate the repeatability of rollover crash tests performed with the Dynamic Rollover Test System (DRoTS) relative to other vehicle crash test methods. METHODS: Test data from DRoTS tests, Deceleration Rollover Sled (DRS) tests, frontal crash tests, frontal offset crash tests, small overlap crash tests, Small Overlap Impact (SOI) crash tests, and oblique crash tests were obtained from the literature and publicly available databases (the National Highway Traffic Safety Administration vehicle database and the Insurance Institute for Highway Safety TechData) to examine crash test repeatability...
November 8, 2016: Traffic Injury Prevention
https://www.readbyqxmd.com/read/27822867/rapid-snp-detection-and-genotyping-of-bacterial-pathogens-by-pyrosequencing
#16
Kingsley K Amoako, Matthew C Thomas, Timothy W Janzen, Noriko Goji
Bacterial identification and typing are fixtures of microbiology laboratories and are vital aspects of our response mechanisms in the event of foodborne outbreaks and bioterrorist events. Whole genome sequencing (WGS) is leading the way in terms of expanding our ability to identify and characterize bacteria through the identification of subtle differences between genomes (e.g. single nucleotide polymorphisms (SNPs) and insertions/deletions). Modern high-throughput technologies such as pyrosequencing can facilitate the typing of bacteria by generating short-read sequence data of informative regions identified by WGS analyses, at a fraction of the cost of WGS...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27802120/influence-of-thermal-cycling-on-flexural-properties-and-simulated-wear-of-computer-aided-design-computer-aided-manufacturing-resin-composites
#17
A Tsujimoto, W W Barkmeier, T Takamizawa, M A Latta, M Miyazaki
OBJECTIVE: The purpose of this study was to evaluate the influence of thermal cycling on the flexural properties and simulated wear of computer-aided design/computer-aided manufacturing (CAD/CAM) resin composites. METHODS: The six CAD/CAM resin composites used in this study were 1) Lava Ultimate CAD/CAM Restorative (LU); 2) Paradigm MZ100 (PM); 3) CERASMART (CS); 4) Shofu Block HC (SB); 5) KATANA AVENCIA Block (KA); and 6) VITA ENAMIC (VE). Specimens were divided randomly into two groups, one of which was stored in distilled water for 24 hours, and the other of which was subjected to 10,000 thermal cycles...
November 1, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27762238/optozif-drive-a-3d-printed-implant-and-assembly-tool-package-for-neural-recording-and-optical-stimulation-in-freely-moving-mice
#18
David S Freedman, Joseph B Schroeder, Gregory I Telian, Zhengyang Zhang, Smrithi Sunil, Jason T Ritt
OBJECTIVE: Behavioral neuroscience studies in freely moving rodents require small, light-weight implants to facilitate neural recording and stimulation. Our goal was to develop an integrated package of 3D printed parts and assembly aids for labs to rapidly fabricate, with minimal training, an implant that combines individually positionable microelectrodes, an optical fiber, zero insertion force (ZIF-clip) headstage connection, and secondary recording electrodes, e.g. for electromyography (EMG)...
December 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27750392/the-clinical-radiological-microbiological-and-molecular-profile-of-the-skin-penetration-site-of-transfemoral-amputees-treated-with-bone-anchored-prostheses
#19
Maria Lennerås, Georgios Tsikandylakis, Margarita Trobos, Omar Omar, Forugh Vazirisani, Anders Palmquist, Örjan Berlin, Rickard Brånemark, Peter Thomsen
The breach of the skin barrier is a critical issue associated with the treatment of individuals with transfemoral amputation (TFA) using osseointegrated, percutaneous titanium implants. Thirty TFA patients scheduled for abutment exchange or removal were consecutively enrolled. The aims were to determine the macroscopic skin signs, the presence of bacteria and the gene expression in abutment-adherent cells and to conduct correlative and comparative analyses between the different parameters. Redness and a granulation ring were present in 47% of the patients...
October 17, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27743398/survival-of-dental-implants-placed-in-sites-of-previously-failed-implants
#20
Bruno R Chrcanovic, Jenö Kisch, Tomas Albrektsson, Ann Wennerberg
OBJECTIVES: To assess the survival of dental implants placed in sites of previously failed implants and to explore the possible factors that might affect the outcome of this reimplantation procedure. MATERIALS AND METHODS: Patients that had failed dental implants, which were replaced with the same implant type at the same site, were included. Descriptive statistics were used to describe the patients and implants; survival analysis was also performed. The effect of systemic, environmental, and local factors on the survival of the reoperated implants was evaluated...
October 14, 2016: Clinical Oral Implants Research
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