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https://www.readbyqxmd.com/read/28101497/the-factors-that-influence-postoperative-stability-of-the-dental-implants-in-posterior-edentulous-maxilla
#1
Yun-Ho Kim, Na-Rae Choi, Yong-Deok Kim
BACKGROUND: All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because of proximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examine which factors will make the implantation in the posterior maxilla more difficult, and which factors will affect the postoperative implant stability in this region. METHODS: Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all the patients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at the Department of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea)...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28095076/impaired-player-coach-perceptions-of-exertion-and-recovery-during-match-congestion
#2
Steven H Doeven, Michel S Brink, Wouter G P Frencken, Koen A P M Lemmink
: During intensified phases of competition, attunement of exertion and recovery is crucial to maintain performance. Although a mismatch between coach' and players' perceptions of training load is demonstrated, it is unknown if these discrepancies also exist for match exertion and recovery. PURPOSE: The aims of this study are to determine match exertion, subsequent recovery and to investigate to what extent the coach is able to estimate players' match exertion and recovery...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28095070/player-responses-to-match-and-training-demands-during-an-intensified-fixture-schedule-in-professional-rugby-league-a-case-study
#3
Craig Twist, Jamie Highton, Matthew Daniels, Nathan Mill, Graeme Close
Player loads and fatigue responses were reported in 15 professional rugby league players (24.3 ± 3.8 y) during a period of intensified fixtures. Repeated measures of internal and external loads, perceived wellbeing and jump flight time were recorded across 22 days, comprising nine training sessions and matches on days 5, 12, 15 and 21 (player exposure: 3.6 ± 0.6 matches). Mean training load (session RPE x duration) between matches was 1177, 1083, 103, and 650 AU, respectively. Relative distance in Match 1 (82 m/min) and Match 4 (79 m/min) was very likely lower in Match 2 (76 m/min) and likely higher in Match 3 (86 m/min)...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28079679/influence-of-behavior-on-complications-of-osseointegrated-bone-conduction-devices-in-children
#4
Michael E Kubala, Matthew D Cox, Kurt L Nelson, Gresham T Richter, John L Dornhoffer
OBJECTIVE: Compare incidences of complications following implantation of osseointegrated bone conduction devices (OBCD) between children with and without behavioral disorders. STUDY DESIGN: Case series with chart review. SETTING: Tertiary referral center otology and neurotology practice. PATIENTS: Pediatric patients who underwent implantation of OBCD between May 2009 and July 2014 at Arkansas Children's Hospital. INTERVENTIONS: Implantation with Cochlear BAHA 200 series, Cochlear BAHA BI300, or Oticon OBCD...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28062612/cardiac-troponin-assays-guide-to-understanding-analytical-characteristics-and-their-impact-on-clinical-care
#5
REVIEW
Fred S Apple, Yader Sandoval, Allan S Jaffe, Jordi Ordonez-Llanos
BACKGROUND: Cardiac troponin I (cTnI) and cardiac troponin T (cTnT) determinations are fixtures in clinical practice and research. Cardiac troponin testing has been the standard of practice for the diagnosis of acute myocardial infarction (AMI), early rule-out, risk stratification, and outcomes assessment in patients presenting with acute coronary syndrome (ACS) and non-ACS myocardial injury. We recognize from reading the literature over the past several years how poorly understood the analytical characteristics are for cTnI and cTnT assays by laboratorians, clinicians, and scientists who use these assays...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28053904/comparative-study-on-the-osseointegration-of-implants-in-dog-mandibles-according-to-the-implant-surface-treatment
#6
Wook-Jae Yoon, Su-Gwan Kim, Ji-Su Oh, Jae-Seek You, Kyung-In Jeong, Sung-Chul Lim, Mi-Ae Jeong
OBJECTIVES: This study compared the impact of implant surface treatment on the stability and osseointegration of implants in dog mandibles. MATERIALS AND METHODS: Six adult dogs received a total of 48 implants that were prepared using four different surface treatments; resorbable blast media (RBM), hydroxyapatite (HA), hydrothermal-treated HA, and sand blasting and acid etching (SLA). Implants were installed, and dogs were separated into 2- and 4-week groups. Implant stability was evaluated via Periotest M, Osstell Mentor, and removal torque analyzers...
December 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28048965/the-developing-stability-of-posterior-mandibular-implants-associated-with-bone-expansion-and-conventional-drilling-techniques
#7
Yen Ting Lin, Adrienne Hong, Ying Chin Peng, Hsiang Hsi Hong
Clinical decisions regarding the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited. The objective was to evaluate the stability of implants placed using two surgical techniques, selected according to the initial width of the mandibular posterior edentulous ridge, with D3 bone density, during a 12-week period. Fifty-eight implants in 33 patients were evaluated. Thirty-two implants in 24 patients were positioned using the osteotome expansion technique, and twenty-six fixtures in 17 patients were installed using the conventional drilling technique...
January 3, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28048083/su-f-t-08-brachytherapy-film-dosimetry-in-a-water-phantom-for-a-ring-and-tandem-hdr-applicator
#8
B Lee, Z Grelewicz, Z Kang, D Cutright, M Gopalakrishnan, V Sathiaseelan, H Zhang
PURPOSE: The feasibility of dose measurement using new generation EBT3 film was explored in a water phantom for a ring and tandem HDR applicator for measurements tracking mucosal dose during cervical brachytherapy. METHODS: An experimental fixture was assembled to position the applicator in a water phantom. Prior to measurement, calibration curves for EBT3 film in water and in solidwater were verified. EBT3 film was placed at different known locations around the applicator in the water tank...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042450/removal-torque-evaluation-of-three-different-abutment-screws-for-single-implant-restorations-after-mechanical-cyclic-loading
#9
T Paepoemsin, P A Reichart, P Chaijareenont, F P Strietzel, P Khongkhunthian
PURPOSE: The aim of this study was to evaluate the removal torque of three different abutment screws and pull out strength of implant-abutment connection for single implant restorations after mechanical cyclic loading. METHODS: The study was performed in accordance with ISO 14801:2007. Three implant groups (n=15) were used: group A, PW Plus® with flat head screw; group B, PW Plus® with tapered screw; and group C, Conelog® with flat head screw. All groups had the same implant-abutment connection feature: cone with mandatory index...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042445/guided-bone-regeneration-via-a-preformed-titanium-foil-clinical-histological-and-histomorphometric-outcome-of-a-case-series
#10
M Andreasi Bassi, C Andrisani, S Lico, Z Ormanier, L Ottria, M Gargari
PURPOSE: The aim of this paper was to evaluate the histological and histomorphometric outcome of Preformed Titanium Foil (PTF) to perform Guided Bone Regeneration (GBR) in posterior mandibular atrophies. MATERIALS AND METHODS: 10 subjects (1 male; 9 females; mean age 58±11.37 years), with distal mandibular atrophies were selected to perform GBR by means of PTF, using a moldable allograft paste as graft material. The devices, made of a 0,2 mm thick pure titanium foil, were pre-shaped using stereolithographic models obtained from CT-scan of the patients' recipient site...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042432/upper-full-arch-rehabilitation-with-sinus-by-pass-with-tilted-implants-via-tapered-threaded-expanders-in-low-density-bone-a-clinical-trial
#11
M Andreasi Bassi, C Andrisani, S Lico, Z Ormanier, C Arcuri
PURPOSE: In the present paper the use of tapered-screw bone expanders (TSBEs) is proposed, in combination with the placement of tilted implants, in close proximity to the anterior sinus wall, solving the problem of the reduced height of the alveolar bone in the sub-antral area. The Authors present a case series of full-arch rehabilitations performed with this procedure named: Tilted Implant Expansion Osteotomy (TIEO). MATERIALS AND METHODS: 12 patients (5 males and 7 females, average age 58...
April 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28018564/evaluation-of-stability-of-interface-between-ccm-co-cr-mo-ucla-abutment-and-external-hex-implant
#12
Ki-Joon Yoon, Young-Bum Park, Hyunmin Choi, Youngsung Cho, Jae-Hoon Lee, Keun-Woo Lee
PURPOSE: The purpose of this study is to evaluate the stability of interface between Co-Cr-Mo (CCM) UCLA abutment and external hex implant. MATERIALS AND METHODS: Sixteen external hex implant fixtures were assigned to two groups (CCM and Gold group) and were embedded in molds using clear acrylic resin. Screw-retained prostheses were constructed using CCM UCLA abutment and Gold UCLA abutment. The external implant fixture and screw-retained prostheses were connected using abutment screws...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018003/refuge-alternatives-relief-valve-testing-and-design
#13
T J Lutz, P T Bissert, G T Homce, J A Yonkey
The U.S. National Institute for Occupational Safety and Health (NIOSH) has been researching refuge alternatives (RAs) since 2007. RAs typically have built-in pressure relief valves (PRVs) to prevent the unit from reaching unsafe pressures. The U.S. Mine Safety and Health Administration requires that these valves vent the chamber at a maximum pressure of 1.25 kPa (0.18 psi, 5.0 in. H2O), or as specified by the manufacturer, above mine atmospheric pressure in the RA. To facilitate PRV testing, an instrumented benchtop test fixture was developed using an off-the-shelf centrifugal blower and ductwork...
October 2016: Mining Engineering
https://www.readbyqxmd.com/read/27995901/human-in-the-loop-active-electrosense
#14
Sandra Fang, Michael Peshkin, Malcolm A MacIver
Active electrosense is a non-visual, short range sensing system used by weakly electric fish, enabling such fish to locate and identify objects in total darkness. Here we report initial findings from the use of active electrosense for object localization during underwater teleoperation with a virtual reality (VR) head-mounted display (HMD). The advantage of electrolocating with a VR system is that it naturally allows for aspects of the task that are difficult for a person to perform to be allocated to the computer...
December 20, 2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27909818/presto-lift-a-facelift-that-preserves-the-retaining-ligaments-and-smas-tethering
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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