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https://www.readbyqxmd.com/read/28651162/antibacterial-activity-corrosion-resistance-and-wear-behavior-of-spark-plasma-sintered-ta-5cu-alloy-for-biomedical-applications
#1
Jing Cui, Liang Zhao, Weiwei Zhu, Bi Wang, Cancan Zhao, Liming Fang, Fuzeng Ren
Tantalum has been widely used in orthopedic and dental implants. However, the major barrier to the extended use of such medical devices is the possibility of bacterial adhesion to the implant surface which will cause implant-associated infections. To solve this problem, bulk Ta-5Cu alloy has been fabricated by a combination of mechanical alloying and spark plasma sintering. The effect of the addition of Cu on the hardness, antibacterial activity, cytocompatibility, corrosion resistance and wear performance was systematically investigated...
June 21, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28650904/pediatric-procedural-sedation-using-the-combination-of-ketamine-and-propofol-outside-of-the-emergency-department-a-report-from-the-pediatric-sedation-research-consortium
#2
Jocelyn R Grunwell, Curtis Travers, Anne G Stormorken, Patricia D Scherrer, Corrie E Chumpitazi, Jana A Stockwell, Mark G Roback, Joseph Cravero, Pradip P Kamat
OBJECTIVES: Outcomes associated with a sedative regimen comprised ketamine + propofol for pediatric procedural sedation outside of both the pediatric emergency department and operating room are underreported. We used the Pediatric Sedation Research Consortium database to describe a multicenter experience with ketamine + propofol by pediatric sedation providers. DESIGN: Prospective observational study of children receiving IV ketamine + propofol for procedural sedation outside of the operating room and emergency department using data abstracted from the Pediatric Sedation Research Consortium during 2007-2015...
June 23, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28650795/quantitation-of-mandibular-symphysis-bone-as-source-of-bone-grafting-description-in-class-i-and-class-iii-skeletal-conditions
#3
Humberto Velásquez, Sergio Olate, César Díaz, Pablo Navarro, Eduardo Borie, Márcio de Moraes
The aim of this study was to quantify the cortical and cancellous bone in the mandibular symphysis and relate it to the teeth and to the skeletal class. A descriptive study was conducted using cone beam computerized tomography (CBCT). Class I and class III subjects were included, defined according to dental occlusion and cephalogram results. Linear measurements were taken on the CBCT of the mandibular canines, lateral incisors, and central incisors, where the analysis was related to the axial and apical axes considering the bone in relation to the dental area...
June 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28650787/the-effect-of-casein-phosphopeptide-amorf-calcium-phosphate-and-acidulated-phosphate-fluoride-gel-on-dental-erosion-in-primary-teeth-an-in-vitro-study
#4
Eda Arat Maden, Özge Acar, Ceyhan Altun, Günseli Güven Polat
OBJECTIVE: This study aimed to investigate the effect of acidulated phosphate fluoride (APF) gel and casein phosphopeptide/amorphous calciumphosphate (CPP-ACP) on the dental erosion produced by carbonated soft drink in primary teeth. STUDY DESIGN: This study evaluated by an in vitro model the effect of APF gel and CPP-ACP on the dental enamel previously subjected to erosive challenge with carbonated soft drink. Sixty sound human primary molars were prepared by embedding the crown sections in acrylic resin blocks leaving the enamel surfaces exposed...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650786/alveolar-fracture-caused-by-tooth-extraction-at-home
#5
Fabrício Kitazono de Carvalho, Thaís Aparecida Xavier, Nicole Gonçalves Lima, Alexandra Mussolino de Queiroz, Marcilene Coelho Vinhorte, Paulo Nelson-Filho
Injuries to the teeth and surrounding structures are relatively common. Although traumatic injuries caused by falls or activities related to sports are widely discussed, the same cannot be said regarding accidents arising from non-professional extraction of primary teeth. The present study reports a 6-year-old male child who underwent mandibular alveolar bone fracture during non-professional extraction of his central lower left incisor at home, performed by his 30-year-old aunt. The root of the tooth was with an irregular physiological resorption, which acted as a lever component for the mechanical force applied, leading to bone fracture...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650785/clinical-performance-of-heat-cured-high-viscosity-glass-ionomer-class-ii-restorations-in-primary-molars-a-preliminary-study
#6
Eliyahu Tal, Ari Kupietzky, Anna B Fuks, Nili Tickotsky, Moti Moskovitz
OBJECTIVES: The present preliminary study evaluated the clinical and radiographic performances of heat-cured high viscosity glass ionomer (HCHVGI) in class II restorations of primary molars. STUDY DESIGN: A retrospective study on a cohort of patients who had dental caries restored at a private practice was conducted. Restorations were evaluated radiographically and photographically by two separate examiners. RESULTS: Ninety-three Class II restorations in 44 patients (average age: 108 months ± 25...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650783/conservative-treatment-of-multiple-keratocystic-odontogenic-tumors-in-a-young-patient-with-nevoid-basal-cell-carcinoma-syndrome-by-decompression-a-7-year-follow-up-study
#7
Su-Hyun Kim, Min-Seok Oh, Yo-Seob Seo, Jin-Young Kim, Soon-Hyeun Nam, Su-Min Lim
Multiple keratocystic odontogenic tumors (KCOT) occurred in a young child is challenging problem in the field of pediatric dentistry, and might have been related to nevoid basal cell carcinoma syndrome (NBCCS). Because of high recurrence rate of KCOTs, complete surgical resection is generally accepted as definitive treatment. However, complete surgical resection could induce negative effect on the development of permanent teeth and growth of jaw. Herein, we reported successful treatment case of young KCOT patient with NBCCS...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650778/success-of-dental-treatments-under-behavior-management-sedation-and-general-anesthesia
#8
Sigalit Blumer, Liora Costa, Benjamin Peretz
OBJECTIVE: To present comparative study aims to assist the practitioner to choose between behavior modification (BM) techniques, pharmacologic sedation (N2O-O2 alone or combined with midazolam 0.5 mg/ kg) or routine general anesthesia (GA) for the most successful approach in enabling pediatric dental care. STUDY DESIGN: Dental records of 56 children treated in a university dental clinic between 2006-2016 were reviewed, and data on age, gender, required treatment (amalgam restorations, composite restorations, pulpotomy, and stainless steel crowns [SSC]), treatment approaches and therapeutic success at final follow-up were retrieved...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650137/how-to-manage-the-biological-risk-in-a-dental-clinic-state-of-the-art-and-future-perspectives
#9
Matteo Saccucci, Gaetano Ierardo, Carmela Protano, Matteo Vitali, Antonella Polimeni
Dental Personnel (DP) may be exposed to pathogens during dental treatment, either through contact contaminated equipment, or with blood and respiratory secretion. On the other hand, health care professionals are constantly exposed to pathogens and opportunists in their work environment. Consequently, the dental healthcare environment is connected with the risk of exposure to biological agents both for patients and dental workers, and involves a wide number of microorganisms that can be present in biological matrices (gingival fluids, saliva, blood), contaminated and/or non-sanitized surfaces, water used in the dental unit, or emitted by patients suffering or carrier of a transmissible disease...
June 23, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28649865/dental-stem-cells-recent-progresses-in-tissue-engineering-and-regenerative-medicine
#10
João Botelho, Maria Alzira Cavacas, Vanessa Machado, José João Mendes
Since the disclosure of adult mesenchymal stem cells (MSCs) there have been an intense investigation on the characteristics of these cells and their potentialities. Dental Stem Cells (DSCs) are MSC-like populations with self-renewal capacity and multidifferentiation potential. Currently, there are five main DSCs, dental pulp stem cells (DPSCs), stem cells from exfoliated deciduous teeth (SHED), stem cells from apical papilla (SCAP), periodontal ligament stem cells (PDLSCs), and Dental Follicle Precursor Cells (DFPCs)...
June 24, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28649626/investigation-of-simulated-microgravity-effects-on-streptococcus-mutans-physiology-and-global-gene-expression
#11
Silvia S Orsini, April M Lewis, Kelly C Rice
Astronauts have been previously shown to exhibit decreased salivary lysozyme and increased dental calculus and gingival inflammation in response to space flight, host factors that could contribute to oral diseases such as caries and periodontitis. However, the specific physiological response of caries-causing bacteria such as Streptococcus mutans to space flight and/or ground-based simulated microgravity has not been extensively investigated. In this study, high aspect ratio vessel S. mutans simulated microgravity and normal gravity cultures were assessed for changes in metabolite and transcriptome profiles, H2O2 resistance, and competence in sucrose-containing biofilm media...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28649592/fluoride-concentration-level-in-rural-area-in-poldasht-city-and-daily-fluoride-intake-based-on-drinking-water-consumption-with-temperature
#12
Ali Akbar Mohammadi, Mahmood Yousefi, Amir Hossein Mahvi
Long-term exposure to high level of fluoride can caused several adverse effects on human health including dental and skeletal fluorosis. We investigated all the drinking water source located in rural areas of Poldasht city, west Azerbaijan Province, North West Iran between 2014 and 2015. Fluoride concentration of water samples was measured by SPADNS method. We found that in the villages of Poldasht the average of fluoride concentration in drinking water sources (well, and the river) was in the range mg/l 0...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28649418/facilitating-access-to-health-research-through-a-participatory-research-register-a-feasibility-study-in-outpatient-clinics
#13
Verity A Leach, John D McGeagh, Ruta Margelyte, Niamh M Redmond, Axel Walther, Sabi Redwood, Richard M Martin, Jenny L Donovan
BACKGROUND: A research register (Reach West) has been established to facilitate recruitment of people and patients to health-related research. We conducted a prospective feasibility study to investigate the practicality of recruiting through outpatient clinics. METHODS: Patients over 18 years of age attending dental, eye or oncology outpatient clinics in an acute hospital in the West of England were provided with the opportunity to participate in Reach West. In Phase I, recruitment packs were handed to clinic attendees who could place completed consent forms in secure drop-box or return them later on-line or by post...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28649403/inter-personal-diversity-and-temporal-dynamics-of-dental-tongue-and-salivary-microbiota-in-the-healthy-oral-cavity
#14
Michael W Hall, Natasha Singh, Kester F Ng, David K Lam, Michael B Goldberg, Howard C Tenenbaum, Josh D Neufeld, Robert G Beiko, Dilani B Senadheera
Oral microbes form a complex and dynamic biofilm community, which is subjected to daily host and environmental challenges. Dysbiosis of the oral biofilm is correlated with local and distal infections and postulating a baseline for the healthy core oral microbiota provides an opportunity to examine such shifts during the onset and recurrence of disease. Here we quantified the daily, weekly, and monthly variability of the oral microbiome by sequencing the largest oral microbiota time-series to date, covering multiple oral sites in ten healthy individuals...
2017: NPJ Biofilms and Microbiomes
https://www.readbyqxmd.com/read/28649171/injectable-scaffolds-preparation-and-application-in-dental-and-craniofacial-regeneration
#15
Bei Chang, Neelam Ahuja, Chi Ma, Xiaohua Liu
Injectable scaffolds are appealing for tissue regeneration because they offer many advantages over pre-formed scaffolds. This article provides a comprehensive review of the injectable scaffolds currently being investigated for dental and craniofacial tissue regeneration. First, we provide an overview of injectable scaffolding materials, including natural, synthetic, and composite biomaterials. Next, we discuss a variety of characteristic parameters and gelation mechanisms of the injectable scaffolds. The advanced injectable scaffolding systems developed in recent years are then illustrated...
January 2017: Materials Science & Engineering. R, Reports: a Review Journal
https://www.readbyqxmd.com/read/28648763/technical-note-intra-alveolar-morphology-assessed-in-empty-dental-sockets-of-teeth-missing-post-mortem
#16
Lucas Raineri Capeletti, Ademir Franco, Rogério Vieira Reges, Rhonan Ferreira Silva
Dental human identification relies on distinctive traits detected and compared between ante-mortem (AM) and post-mortem (PM) data. Several distinctive traits may be found in dental roots, such as dilacerations and bifurcations. However, teeth are often dislodged during the manipulation of skeletal remains, charred bodies and bodies retrieved from water. In these situations the identification process is hampered. The present study aims to retrieve information of teeth missing PM through the investigation of intra-alveolar morphology in empty dental sockets using different dental impression materials...
June 15, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28648551/science-politics-and-communication-the-case-of-community-water-fluoridation-in-the-us
#17
Myron Allukian, Olivia D Carter-Pokras, Barbara F Gooch, Alice M Horowitz, Hiroko Iida, Matt Jacob, Dushanka V Kleinman, Jayanth Kumar, William R Maas, Howard Pollick, R Gary Rozier
Community water fluoridation (CWF) and its effect in reducing the burden of dental caries (tooth decay) is considered one of the 10 public health achievements in the 20th century. In the U.S., three-quarters (74.4%) of people on community water supplies have optimally fluoridated water, and each year approximately 90 communities actively consider starting or discontinuing CWF. CWF exists within the policy environment and includes actions taken by local community councils, health and water boards, and groups; state legislatures and health departments; national regulatory and science agencies; independent science entities; and professional and nonprofit organizations...
May 29, 2017: Annals of Epidemiology
https://www.readbyqxmd.com/read/28647397/actinomyces-radicidentis-and-actinomyces-haliotis-coccoid-actinomyces-species-isolated-from-the-human-oral-cavity
#18
Rolf Claesson, Ulf Sjögren, Anders Esberg, Malin Brundin, Margareta Granlund
There are few reports on the bacterial species Actinomyces radicidentis in the literature. In this study, putative A. radicidentis isolates were collected from 16 root canal samples from 601 examined patients. The isolates were examined by biochemical tests, 16S rRNA gene sequencing, Arbitrarily-primed (AP-) PCR, antibiotic susceptibility testing, and MALDI-TOF analyses. In parallel, two A. radicidentis reference strains and two putative A. radicidentis isolates from United Kingdom were tested. Sixteen of the 18 isolates were confirmed as A...
June 21, 2017: Anaerobe
https://www.readbyqxmd.com/read/28647157/veneered-zirconia-inlay-retained-fixed-dental-prostheses-10-year-results-from-a-prospective-clinical-study
#19
Friederike Rathmann, Wolfgang Bömicke, Peter Rammelsberg, Brigitte Ohlmann
OBJECTIVE: The purpose of this study was to evaluate the 10-year clinical performance of zirconia-based inlay-retained fixed dental prostheses (IRFDP). METHODS: For replacement of a molar in 27 patients, 30 IRFDP were luted by use of different cements, Panavia F (Kuraray Europe GmbH) or Multilink Automix (Ivoclar Vivadent GmbH), with use of inlay/inlay, inlay/full-crown, or inlay/partial-crown retainers for anchorage. Frameworks were milled from yttria-stabilized zirconia (IPS e...
June 21, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28647133/-men-who-have-sex-with-men-and-human-immunodeficiency-virus-testing-in-dental-practice
#20
Jesús Eduardo Elizondo, Ana Cecilia Treviño, Deborah Violant, Ana María Rivas-Estilla, Mario Moisés Álvarez
OBJECTIVE: To explore the attitudes of men who have sex with men (MSM) towards the implementation of rapid HIV-1/2 testing in the dental practice, and to evaluate MSM's perceptions of stigma and discrimination related to sexual orientation by dental care professionals. METHODS: Cross-sectional study using a self-administered, anonymous, structured analytical questionnaire answered by 185 MSM in Mexico. The survey included sociodemographic variables, MSM's perceptions towards public and private dental providers, and dental services, as well as their perception towards rapid HIV-1/2 testing in the dental practice...
June 21, 2017: Gaceta Sanitaria
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