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https://www.readbyqxmd.com/read/28430676/a-biomimetic-alternative-to-synthetic-hydroxyapatite-boron-containing-bone-like-hydroxyapatite-precipitated-from-simulated-body-fluid
#1
Mert Calis, Tugrul Tolga Demirtas, Alper Vatansever, Gulseren Irmak, Ahmet Hamdi Sakarya, Pergin Atilla, Figen Ozgur, Menemse Gumusderelioglu
BACKGROUND: Biological hydroxyapatite (HA), has several mechanical and physical advantages over the commercially available synthetic apatite (CAP-HA). The aim of this in vivo study was to investigate the effect of osteoinductive "bone-like hydroxyapatite" obtained from simulated body fluid (SBF) combined with osteoinductive "boron" (B) on bone healing. MATERIALS: Bone like nanohydroxyapatite (SBF-HA) was precipitated from 10× simulated body fluid (10×SBF). Thirty Sprague-Dawley rats were randomly divided into 5 experimental groups (n = 6 each)...
April 20, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28427322/dental-pulp-pluripotent-like-stem-cells-dppsc-a-new-stem-cell-population-with-chromosomal-stability-and-osteogenic-capacity-for-biomaterials-evaluation
#2
Raquel Núñez-Toldrà, Ester Martínez-Sarrà, Carlos Gil-Recio, Miguel Ángel Carrasco, Ashraf Al Madhoun, Sheyla Montori, Maher Atari
BACKGROUND: Biomaterials are widely used to regenerate or substitute bone tissue. In order to evaluate their potential use for clinical applications, these need to be tested and evaluated in vitro with cell culture models. Frequently, immortalized osteoblastic cell lines are used in these studies. However, their uncontrolled proliferation rate, phenotypic changes or aberrations in mitotic processes limits their use in long-term investigations. Recently, we described a new pluripotent-like subpopulation of dental pulp stem cells derived from the third molars (DPPSC) that shows genetic stability and shares some pluripotent characteristics with embryonic stem cells...
April 21, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28425209/identification-of-dynamic-load-for-prosthetic-structures
#3
Dequan Zhang, Xu Han, Zhongpu Zhang, Jie Liu, Chao Jiang, Nobuhiro Yoda, Xianghua Meng, Qing Li
Dynamic load exists in numerous biomechanical systems and its identification signifies a critical issue for characterizing dynamic behaviors and studying biomechanical consequence of the systems. This study aims to identify dynamic load in the dental prosthetic structures, namely three-unit implant-supported fixed partial denture (I-FPD) and teeth-supported fixed partial denture (T-FPD). The three-dimensional (3D) finite element (FE) models were constructed through patient's computerized tomography (CT) images...
April 20, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28424878/oral-health-in-patients-with-renal-disease-a-longitudinal-study-from-predialysis-to-kidney-transplantation
#4
Karita M Nylund, Jukka H Meurman, Anna Maria Heikkinen, Jussi O Furuholm, Fernanda Ortiz, Hellevi M Ruokonen
OBJECTIVES: The aim of this longitudinal study was to compare the oral health of chronic kidney disease patients at the predialysis (baseline) and post-transplantation (follow-up) stages and to investigate differences in oral health between diabetic nephropathy and other kidney disease patients at follow-up. MATERIALS AND METHODS: Fifty-three kidney disease patients (34 men) aged 31-86 years were followed up to 157 months. Clinical and radiological oral examinations, salivary and laboratory analyses, and oral health behavior questionnaires were conducted at the predialysis and follow-up stages at Helsinki University Hospital, Finland...
April 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28423066/influence-of-maternal-anxiety-on-child-anxiety-during-dental-care-cross-sectional-study
#5
Paloma Busato, Raíssa Rigo Garbín, Catielma Nascimento Santos, Luiz Renato Paranhos, Lilian Rigo
CONTEXT AND OBJECTIVES: Anxiety is usually classified as a disorder of neurotic nature and is often related to contexts of stress, which may include worries, motor tension and autonomic hyperactivity. The aim of this study was to assess the influence of mothers' anxiety on their children's anxiety during dental care. DESIGN AND SETTING: Analytical cross-sectional study conducted at in a private dentistry school in the south of Brazil. METHODS: Convenience sampling was used...
April 13, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28422597/post-discharge-events-occurring-after-dental-treatment-under-deep-sedation-in-pediatric-patients
#6
Esti Davidovich, Liron Meltzer, Jacob Efrat, David Gozal, Diana Ram
PURPOSE: Deep sedation is often required in dentistry for treating children with uncooperative behavior. We assessed immediate post-sedation events during the first 24 hours after dental treatment under deep sedation in children, and examined correlations to a number of variables. STUDY DESIGN: Information was collected from medical files for a convenience sample of children between the ages of 1 and 16, who were treated under deep sedation at one clinic (propofol alone or combined with a sedative agent)...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28421736/enhancing-the-bioactivity-of-yttria-stabilized-tetragonal-zirconia-ceramics-via-grain-boundary-activation
#7
Jinhuan Ke, Jiandong Ye, Fupo He
Yttria-stabilized tetragonal zirconia (Y-TZP) has been proposed as a potential dental implant due to its good biocompatibility, excellent mechanical properties, and distinctive aesthetic effect. However, Y-TZP cannot form chemical bonds with bone tissue because of its biological inertness, which affects the reliability and long-term efficacy of Y-TZP implants. In this study, to improve the bioactivity of Y-TZP ceramics while maintaining their good mechanical performance, Y-TZP was modified by grain boundary activation via the infiltration of a bioactive glass (BG) sol into the surface layer of Y-TZP ceramics under different negative pressures (atmospheric pressure, -0...
April 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28416222/dentin-on-the-nanoscale-hierarchical-organization-mechanical-behavior-and-bioinspired-engineering
#8
REVIEW
Luiz E Bertassoni
OBJECTIVE: Knowledge of the structural organization and mechanical properties of dentin has expanded considerably during the past two decades, especially on a nanometer scale. In this paper, we review the recent literature on the nanostructural and nanomechanical properties of dentin, with special emphasis in its hierarchical organization. METHODS: We give particular attention to the recent literature concerning the structural and mechanical influence of collagen intrafibrillar and extrafibrillar mineral in healthy and remineralized tissues...
April 14, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28415466/effect-of-lubricant-on-the-reliability-of-dental-implant-abutment-screw-joint-an-in-vitro-laboratory-and-three-dimension-finite-element-analysis
#9
Tingting Wu, Hongyi Fan, Ruiyang Ma, Hongyu Chen, Zhi Li, Haiyang Yu
Biomechanical factors play a key role in the success of dental implants. Fracture and loosening of abutment screws are major issues. This study investigated the effect of lubricants on the stability of dental implant-abutment connection. As lubricants, graphite and vaseline were coated on the abutment screw surface, respectively, and a blank without lubricant served as the control. The total friction coefficient (μtot), clamping force, fatigue behavior and detorque of the joint combined with dynamic cyclic loading were measured under different lubricating conditions...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28413165/applying-multi-theory-model-mtm-of-health-behavior-change-to-predict-water-consumption-instead-of-sugar-sweetened-beverages
#10
Manoj Sharma, Hannah Priest Catalano, Vinayak K Nahar, Vimala C Lingam, Paul Johnson, M Allison Ford
BACKGROUND: A substantial proportion of college students to not drink enough water and consume sugar-sweetened beverages (SSBs). Consumption of SSBs is associated with weight gain, obesity, type 2 diabetes mellitus, dental carries, and increased risk for cardiovascular disease. Hence, the purpose of this study was to use the multi-theory model (MTM) in predicting initiation and sustenance of plain water consumption instead of sugar-sweetened beverages among college students. STUDY DESIGN: A cross-sectional study...
February 25, 2017: Journal of Research in Health Sciences
https://www.readbyqxmd.com/read/28412230/oral-health-4-life-design-and-methods-of-a-semi-pragmatic-randomized-trial-to-promote-oral-health-care-and-smoking-abstinence-among-tobacco-quitline-callers
#11
Jennifer B McClure, Paula R Blasi, Andrea Cook, Terry Bush, Paul Fishman, Jennifer Nelson, Melissa L Anderson, Sheryl L Catz
Smokers are at high risk for oral disease. As a result, they represent an important target group for population-level, public oral health promotion efforts. While dental health professionals often address smoking with their patients, no systematic efforts have been made to offer smokers an intervention to improve their use of oral health care. This paper details the rationale, design, and methods of a large, semi-pragmatic, randomized clinical trial designed to address this gap. Participants are recruited via the Oregon, Nebraska and Louisiana state-sponsored tobacco quitlines and randomized to receive standard quitline care versus standard care plus a multi-modal oral health promotion program (Oral Health 4 Life) integrated within the quitline services...
April 12, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28406458/behavior-of-human-osteoblast-cells-cultured-on-titanium-discs-in-relation-to-surface-roughness-and-presence-of-melatonin
#12
M Fernanda Sola-Ruiz, Carolina Perez-Martinez, Carlos Labaig-Rueda, Carmen Carda, J Javier Martín De Llano
The aim of this work was to observe the behavior of osteoblast cells cultured in vitro on titanium discs in relation to disc surface roughness and the addition of melatonin to the culture medium. MG63 osteoblast cells were cultivated on 120 Grade 5 Ti divided into three groups: Group E, treated with dual acid etch; Group EP, treated with dual acid etch and calcium phosphate; and Group M, machined. Surface roughness was examined under a laser scanning confocal microscope (CLSM) and scanning electron microscopy (SEM)...
April 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28399933/intranasal-sedation-using-ketamine-and-midazolam-for-pediatric-dental-treatment-naso-study-protocol-for-a-randomized-controlled-trial
#13
Heloisa Sousa Gomes, Analya Rodrigues Miranda, Karolline Alves Viana, Aline Carvalho Batista, Paulo Sucasas Costa, Anelise Daher, Geovanna de Castro Morais Machado, Joji Sado-Filho, Liliani Aires Candido Vieira, Patrícia Corrêa-Faria, Marie Therese Hosey, Luciane Rezende Costa
BACKGROUND: Uncooperative children may need to receive dental treatment under sedation, which is indicated when nonpharmacological behavior guidance is unsuccessful. There are randomized controlled trials (RCTs) comparing different sedative protocols for dental procedures; however, the evidence for superiority of one form over another is weak. The primary aim of this study is to investigate the efficacy of intranasally administered ketamine plus midazolam for the dental treatment of children...
April 11, 2017: Trials
https://www.readbyqxmd.com/read/28399334/effects-of-audiovisual-distraction-in-children-with-special-healthcare-needs-during-dental-restorations-a-randomized-crossover-clinical-trial
#14
Simone Bagattoni, Giovanni D'Alessandro, Agnese Sadotti, Nadia Alkhamis, Gabriela Piana
BACKGROUND: Audiovisual distraction using video eyeglasses is useful in managing distress and reducing fear and anxiety in healthy children during dental treatments. AIM: To evaluate the effect of audiovisual distraction on behavior and self-reported pain of children with special healthcare needs (SHCN) without intellectual disability during dental restorations and its influence on the operator stress and the time of the appointment. MATERIAL AND METHODS: This randomized controlled crossover trial comprised 48 children with SHCN requiring at least two dental restorations...
April 11, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28398070/psychosocial-factors-and-oral-health-practices-of-preschool-aged-children-a-qualitative-study-with-hispanic-mothers
#15
T L Finlayson, N Y Beltran, K Becerra
OBJECTIVE: This qualitative study sought to gain an in-depth understanding of Hispanic mother's parenting experiences and perceptions about select psychosocial factors. How psychosocial factors influence mothers' engagement in recommended oral health-related behaviors for their preschool-aged children (3-5 years) was explored. Psychosocial resources and barriers explored included maternal knowledge about children's oral health, beliefs such as perceived self-efficacy and health locus of control, and parenting experience and stress...
April 11, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28393813/evaluation-of-the-influence-of-parental-anxiety-on-children-s-behavior-and-understanding-children-s-dental-anxiety-after-sequential-dental-visits
#16
Swapnali Dilip Shinde, Rahul J Hegde
BACKGROUND: Identifying anxiety levels of parents accompanying their children can help the clinician in designing the behavior management strategies for the child. In addition, continued dental experience can improve the child's response, indicating desensitization to dental stress. AIMS: To evaluate the influence of parental anxiety on children's behavior and understanding children's dental anxiety after sequential dental visits. MATERIALS AND METHODS: A total of 175 children of age 6-12 years, 98 were boys and 77 were girls, were randomly selected from various schools of Navi Mumbai...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28393367/increasing-popularity-of-waterpipe-tobacco-smoking-and-electronic-cigarette-use-implications-for-oral-healthcare
#17
REVIEW
C P Ramôa, T Eissenberg, S E Sahingur
Cigarette smoking increases the risk of developing several systemic conditions including cancer, cardiovascular and pulmonary diseases. Cigarette smoking is also detrimental to oral health as it increases the incidence and severity of oral cancer, periodontal diseases and peri-implantitis, as well as impacting negatively on the dental patients' response to therapy. Therefore, consideration of smoking behavior and recommendation of smoking cessation are important parts of dental treatment planning. However, cigarettes are no longer the most popular form of tobacco use among adolescents in the United States and globally...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28390134/primordial-odontogenic-tumor-an-immunohistochemical-profile
#18
R Bologna-Molina, T Mikami, V Pereira-Prado, F-R Pires, R Carlos-Bregni, A Mosqueda-Taylor
BACKGROUND: Primordial Odontogenic Tumor (POT) is a recently described odontogenic tumor characterized by a variably cellular loose fibrous tissue with areas similar to the dental papilla, covered by cuboidal to columnar epithelium that resembles the internal epithelium of the enamel organ, surrounded at least partly by a delicate fibrous capsule. The purpose of this study was to investigate the possible histogenesis and biological behavior of this rare tumor by means of a wide immunohistochemical analysis of its epithelial and mesenchymal components...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28388367/a-consensus-based-set-of-measures-for-oral-health-care
#19
F Baâdoudi, A Trescher, D Duijster, N Maskrey, F Gabel, G J M G van der Heijden, S Listl
Increasingly more responsive and accountable health care systems are demanded, which is characterized by transparency and explicit demonstration of competence by health care providers and the systems in which they work. This study aimed to establish measures of oral health for transparent and explicit reporting of routine data to facilitate more patient-centered and prevention-oriented oral health care. To accomplish this, an intermediate objective was to develop a comprehensive list of topics that a range of stakeholders would perceive as valid, important, and relevant for describing oral health and oral health care...
April 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28386547/biomechanical-evaluation-of-a-tooth-restored-with-high-performance-polymer-pekk-post-core-system-a-3d-finite-element-analysis
#20
Ki-Sun Lee, Joo-Hee Shin, Jong-Eun Kim, Jee-Hwan Kim, Won-Chang Lee, Sang-Wan Shin, Jeong-Yol Lee
The aim of this study was to evaluate the biomechanical behavior and long-term safety of high performance polymer PEKK as an intraradicular dental post-core material through comparative finite element analysis (FEA) with other conventional post-core materials. A 3D FEA model of a maxillary central incisor was constructed. A cyclic loading force of 50 N was applied at an angle of 45° to the longitudinal axis of the tooth at the palatal surface of the crown. For comparison with traditionally used post-core materials, three materials (gold, fiberglass, and PEKK) were simulated to determine their post-core properties...
2017: BioMed Research International
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