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https://www.readbyqxmd.com/read/29770237/quantitative-measurement-of-peri-implant-bone-defects-using-optical-coherence-tomography
#1
Sulhee Kim, Se-Ryong Kang, Hee-Jung Park, Bome Kim, Tae-Il Kim, Won-Jin Yi
Purpose: The purpose of this study was to visualize and identify peri-implant bone defects in optical coherence tomography (OCT) images and to obtain quantitative measurements of the defect depth. Methods: Dehiscence defects were intentionally formed in porcine mandibles and implants were simultaneously placed without flap elevation. Only the threads of the fixture could be seen at the bone defect site in the OCT images, so the depth of the peri-implant bone defect could be measured through the length of the visible threads...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29744757/outbreaks-of-legionnaires-disease-and-pontiac-fever-2006-2017
#2
REVIEW
K A Hamilton, A J Prussin, W Ahmed, C N Haas
PURPOSE OF REVIEW: The global importance of Legionnaires' disease (LD) and Pontiac fever (PF) has grown in recent years. While sporadic cases of LD and PF do not always provide contextual information for evaluating causes and drivers of Legionella risks, analysis of outbreaks provides an opportunity to assess these factors. RECENT FINDINGS: A review was performed and provides a summary of LD and PF outbreaks between 2006 and 2017. Of the 136 outbreaks, 115 were LD outbreaks, 4 were PF outbreaks, and 17 were mixed outbreaks of LD and PF...
May 9, 2018: Current Environmental Health Reports
https://www.readbyqxmd.com/read/29740792/monitoring-of-post-match-fatigue-in-professional-soccer-welcome-to-the-real-world
#3
Christopher Carling, Mathieu Lacome, Alan McCall, Gregory Dupont, Franck Le Gall, Ben Simpson, Martin Buchheit
Participation in soccer match-play leads to acute and transient subjective, biochemical, metabolic and physical disturbances in players over subsequent hours and days. Inadequate time for rest and regeneration between matches can expose players to the risk of training and competing whilst not entirely recovered. In professional soccer, contemporary competitive schedules can require teams to compete in excess of 60 matches over the course of the season with periods of fixture congestion occurring, prompting much attention from researchers and practitioners to the monitoring of fatigue and readiness to play...
May 8, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29732018/immediate-functional-loading-of-single-implants-a-multicenter-study-with-4-years-of-follow-up
#4
Filiep Raes, Tammaro Eccellente, Carolina Lenzi, Michele Ortolani, Giuseppe Luongo, Carlo Mangano, Francesco Mangano
Background. In the current scientific literature there are only few studies on the immediate functional loading of single implants. The aim of the present present study was to evaluate the 4-year survival rate, complication rate and peri-implant marginal bone loss (PIMBL) of immediately loaded single implants inserted in healed ridges and fresh post-extraction sites. Methods. Six centers were involved in this prospective study. The surgical and prosthetic protocol was defined in detail, before the start of recruiting patients...
2018: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/29727283/3-d-pose-estimation-of-articulated-instruments-in-robotic-minimally-invasive-surgery
#5
M Allan, S Ourselin, D J Hawkes, J D Kelly, D Stoyanov
Estimating the 3-D pose of instruments is an important part of robotic minimally invasive surgery for automation of basic procedures as well as providing safety features, such as virtual fixtures. Image-based methods of 3-D pose estimation provide a non-invasive low cost solution compared with methods that incorporate external tracking systems. In this paper, we extend our recent work in estimating rigid 3-D pose with silhouette and optical flow-based features to incorporate the articulated degrees-of-freedom (DOFs) of robotic instruments within a gradient-based optimization framework...
May 2018: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/29713438/clinical-outcome-of-immediately-and-early-loaded-implants-with-laser-treated-surface-a-3-year-retrospective-study
#6
Richard Leesungbok, Jin-Ho Seo, Sung-Am Cho
PURPOSE: The marginal bone loss of implants with laser treated surface was investigated after six weeks of loading after implant installation to the mandible molar area. MATERIALS AND METHODS: A total of 23 implants were placed in the edentulous molar area of the mandible: 13 implants were immediately loaded and 10 implants were early loaded. The implants used were made of titanium grade 23, screw shaped, 4.2 mm in diameter, and 10 mm in length. Patients were evaluated with resonance frequency analysis at implant fixture installation and 1, 2 (final prosthesis installation), 3, 5, 8, and 14 months later...
April 2018: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29682265/-all-on-short-prosthetic-implant-supported-rehabilitations
#7
G Falisi, S Bernardi, C Rastelli, D Pietropaoli, F DE Angelis, M Frascaria, C DI Paolo
Objectives: Short implants are increasing their popularity among clinicians who want to fulfill the constant demanding of fixed prosthetic solutions in edentulous jaws. The aim of this report was to propose a new possibility to project and realize an occlusal guided implant cross-arch prosthesis supported by ultra-short implants, describing it presented an edentulous mandible case report. Methods: A 61-year-old, Caucasian, female patient who attended the dental clinic of the University of L'Aquila presented with edentulous posterior inferior jaw and periodontitis and periimplantitis processes in the anterior mandible...
October 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29682251/implant-abutment-connections-on-single-crowns-a-systematic-review
#8
REVIEW
F M Ceruso, P Barnaba, S Mazzoleni, L Ottria, M Gargari, A Zuccon, G Bruno, A DI Fiore
Different implant-abutment connections have been developed in the effort of reducing mechanical and biological failure. The most frequent complications are screw loosening, abutment or implant fracture and marginal bone loss due to overload and bacterial micro-leakage. Ideal connection should work as a one-piece implant avoiding the formation of a micro-gap at the implant-abutment interface. Different in vitro and in vivo researches have been published to compare the implant-abutment connections actually available: external hexagon, internal hexagon and conical finding different amount of micro-gap, micro-leakage and marginal bone loss...
October 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29682092/fem-and-von-mises-analysis-of-osstem-%C3%A2-dental-implant-structural-components-evaluation-of-different-direction-dynamic-loads
#9
Gabriele Cervino, Umberto Romeo, Floriana Lauritano, Ennio Bramanti, Luca Fiorillo, Cesare D'Amico, Dario Milone, Luigi Laino, Francesco Campolongo, Silvia Rapisarda, Marco Cicciù
Purpose: The objective of this investigation is to study prosthodontics and internal components resistance to the masticatory stress and considering different force directions by using Finite Element Method analysis (FEM). The structural materials of the components are usually Titanium alloy grade 4 or 5 and thus, guarantee the integration of the fixture in the bone due to the osteointegration phenomena. Even if the long-term dental implant survival rate is easy to be obtained and confirmed by numerous researches, the related clinical success, due to the alteration of the mechanical and prosthodontics components is still controversial...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29678417/comparison-of-knee-injury-threshold-during-tibial-compression-based-on-limb-orientation-in-mice
#10
Allison W Hsia, Franklin D Tarke, Trevor J Shelton, Priscilla M Tjandra, Blaine A Christiansen
Our previous studies used tibial compression overload to induce anterior cruciate ligament (ACL) rupture in mice, while others have applied similar or greater compressive magnitudes without injury. The causes of these differences in injury threshold are not known. In this study, we compared knee injury thresholds using a "prone configuration" and a "supine configuration" that differed with respect to hip, knee, and ankle flexion, and utilized different fixtures to stabilize the knee. Right limbs of female and male C57BL/6 mice were loaded using the prone configuration, while left limbs were loaded using the supine configuration...
April 12, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29659539/post-game-high-protein-intake-may-improve-recovery-of-football-specific-performance-during-a-congested-game-fixture-results-from-the-pro-football-study
#11
Athanasios Poulios, Ioannis G Fatouros, Magni Mohr, Dimitrios K Draganidis, Chariklia Deli, Konstantinos Papanikolaou, Apostolos Sovatzidis, Theofano Nakopoulou, Georgios Ermidis, Theofanis Tzatzakis, Vasiliki C Laschou, Kalliopi Georgakouli, Agisilaos Koulouris, Panagiotis Tsimeas, Athanasios Chatzinikolaou, Leonidas G Karagounis, Dimitrios Batsilas, Peter Krustrup, Athanasios Z Jamurtas
The effects of protein supplementation on performance recovery and inflammatory responses during a simulated one-week in-season microcycle with two games (G1, G2) performed three days apart were examined. Twenty football players participated in two trials, receiving either milk protein concentrate (1.15 and 0.26 g/kg on game and training days, respectively) (PRO) or an energy-matched placebo (1.37 and 0.31 g/kg of carbohydrate on game and training days, respectively) (PLA) according to a randomized, repeated-measures, crossover, double-blind design...
April 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29652756/radiological-evaluation-of-the-dimensions-of-lower-molar-alveoli
#12
Claudio Agostinelli, Agnese Agostinelli, Marco Berardini, Paolo Trisi
PURPOSE: The aim of the present radiological study was to analyze the alveolar bone morphology of the lower molars in physiological conditions. The main goal is to describe the bone anatomy of a hypothetically postextractive site in lower molar area. MATERIALS AND METHODS: Computed tomography scans of 100 patients were examined. Axial, paraxial, and Panorex sections were analyzed using a dedicated software. Precise reference points were encoded to make the bone measurements clear and repeatable...
April 12, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29608788/a-retrospective-study-of-30959-implants-risk-factors-associated-with-early-and-late-implant-loss
#13
Guofen Lin, Shuhua Ye, Fengjia Liu, Fuming He
AIM: This retrospective study assessed the risk factors associated with early and late implant loss at the patient- and implant-based analysis. MATERIALS AND METHODS: A total of 18199 patients received 30959 dental implants during the years 2011-2015. Age, gender, jaw, location, implant brands, implant length and diameter, bone augmentation procedures, and the number of implants placed per patient were recorded. A multivariate generalized estimating equation (GEE) logistic regression was used to identify risk factors related to both early and late implant loss...
April 2, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29599863/aerobic-fitness-of-starter-and-non-starter-soccer-players-in-the-champion-s-league
#14
Giorgos Paraskevas, Marios Hadjicharalambous
To identify individual response patterns in selected aerobic fitness variables of regular starters (ST; N = 7) and non-starters (Non-ST; N = 10), top level professional soccer players were tested for maximal oxygen uptake (VO2max), velocity at 4 mM of lactate (V4), velocity at maximal oxygen uptake (νVO2max ) and oxygen pulse (O2 -pulse) in July and December following consecutive periods of fixture congestion. V4 was the only variable that increased significantly in December compared to July (15.1 ± 0.5 vs...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29599585/simvastatin-effects-on-dental-socket-quality-a-comparative-study
#15
Mehdi Sezavar, Behnam Bohlouli, Sareh Farhadi, Shiva Tabatabaee, Reza Latifi
Background: The shrinkage of the alveolar ridge might be minimized by the ridge preservation stages and applied alloplasts, after tooth extraction. According to studies on statins, angiogenesis and osteogenesis are observed as a topical application of these drugs. Objectives: The aim of this study is to the application of simvastatin in terms of bone regeneration of the alveolar ridge after tooth extraction. Materials and Methods: This study assessed this issue through the split-mouth method which assessed 10 dental sockets filled with simvastatin and collagen and 10 others filled just by collagen postextraction...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29570576/the-effect-of-match-factors-on-the-running-performance-of-elite-female-soccer-players
#16
Joshua Trewin, César Meylan, Matthew C Varley, John Cronin, Daphne Ling
The purpose of this study was to examine the effects of match-factors on the match-running of elite female soccer players. Players from the same women's national team (n = 45) were monitored during 47 international fixtures (files = 606) across four years (2012-2015) using 10-Hz global positioning system devices. A mixed model was used to analyse the effects of altitude, temperature, match-outcome, opposition ranking and congested schedules. At altitude (>500 m) a small increase in the number of accelerations (ES = 0...
March 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29563650/refuge-alternatives-relief-valve-testing-and-design-with-updated-test-stand
#17
T J Lutz, P T Bissert, G T Homce, J A Yonkey
Underground refuge alternatives require an air source to supply breathable air to the occupants. This requires pressure relief valves to prevent unsafe pressures from building up within the refuge alternative. The U.S. Mine Safety and Health Administration (MSHA) mandates that pressure relief valves prevent pressure from exceeding 1.25 kPa (0.18 psi), or as specified by the manufacturer, above mine atmospheric pressure when a fan or compressor is used for the air supply. The U.S. National Institute for Occupational Safety and Health (NIOSH) tested a variety of pressure relief valves using an instrumented test fixture consisting of data acquisition equipment, a centrifugal blower, ductwork and various sensors to determine if the subject pressure relief valves meet the MSHA requirement...
March 2018: Mining Engineering
https://www.readbyqxmd.com/read/29563361/dental-implant-treatment-with-computer-assisted-surgery-for-bilateral-agenesis-of-maxillary-lateral-incisors-a-case-report
#18
Hodaka Sasaki, Tomoki Hirano, Syuntaro Nomoto, Yasushi Nishii, Yasutomo Yajima
Here, we report a case of dental implant treatment involving computer-assisted surgery for bilateral agenesis of the maxillary lateral incisors. The patient was a 39-year-old woman with the chief complaint of functional and esthetic disturbance due to maxillary and mandibular malocclusion. The treatment plan comprised non-extraction comprehensive orthodontic treatment and prosthodontic treatment for space due to the absence of bilateral maxillary lateral incisors. A preliminary examination revealed that the mesiodistal spaces left by the absent bilateral maxillary lateral incisors were too narrow for implant placement (right, 5...
2018: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/29558162/the-integrity-of-the-acromioclavicular-capsule-ensures-physiological-centering-of-the-acromioclavicular-joint-under-rotational-loading
#19
Felix G E Dyrna, Florian B Imhoff, Andreas Voss, Sepp Braun, Elifho Obopilwe, John M Apostolakos, Daichi Morikawa, Brendan Comer, Andreas B Imhoff, Augustus D Mazzocca, Knut Beitzel
BACKGROUND: The acromioclavicular (AC) capsule is an important stabilizer against horizontal translation and also contributes to the strut function of the clavicle, which guides rotation of the scapula. To best reproduce the biomechanical properties and the complex 3-dimensional (3D) guidance of the AC joint, detailed knowledge of the contribution of each of the distinctive capsular structures is needed. Purpose/Hypothesis: To perform a detailed biomechanical evaluation of the specific capsular structures of the AC joint and their contribution to translational and rotational stability...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29557796/anatomical-and-radiologic-evaluation-of-the-dimensions-of-upper-molar-alveoli
#20
Claudio Agostinelli, Agnese Agostinelli, Marco Berardini, Paolo Trisi
PURPOSE: The aim of the present study was to analyze the alveolar bone morphology of the upper first and second molars. This analysis aims to evaluate the morphology of a hypothetical postextractive site in the upper molar area to diagnose the possibility of immediate postextraction implant placement. MATERIALS AND METHODS: Cone-beam CT scans of 100 patients were examined. The measurements were made using a dedicated 3D software. Reference points were identified to allow clear and repeatable measurements...
March 19, 2018: Implant Dentistry
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