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https://www.readbyqxmd.com/read/28941405/the-effect-of-zoledronate-containing-primer-on-dentin-bonding-of-a-universal-adhesive
#1
Walter Zenobi, Victor Pinheiro Feitosa, Maria Elisa Martins Moura, Camillo D'arcangelo, Lidiany Karla de Azevedo Rodrigues, Salvatore Sauro
OBJECTIVES: To evaluate the bonding ability and nanoleakage of a universal adhesive applied to dentin pre-treated using a zoledronate-containing primer (zol-primer) before and after mechanical load cycling. MATERIALS AND METHODS: Flat dentin surfaces obtained from human molars were assigned to one of the following adhesion procedures (n=6): 1-Single Bond Universal (SBU) applied in etch-and-rinse mode; 2- SBU applied as etch-and-rinse after the application of zol-primer; 3- SBU applied in self-etch strategy; 4- SBU applied as self-etch after the use of zol-primer...
September 14, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28938619/anti-cancer-efficacy-of-biotinylated-chitosan-nanoparticles-in-liver-cancer
#2
Mingrong Cheng, Weiping Zhu, Qing Li, Dejian Dai, Yiming Hou
The present study investigated the synthesis of biotinylated chitosan (Bio-CS) from chitosan using a nanomaterial skeleton with biotin and the successful targeting of the formulation in liver cancer cells. Bio-CS was validated by fourier transformed infrared spectroscopy and hydrogen(-1) nuclear magnetic resonance spectroscopy. Bio-CS and plasmid DNA were used to construct Bio-CS/plasmid DNA nanoparticles according to the optimal molar ratio of 1:1 and the optimal pH-value of 5.5. Under these conditions, the parameters mean particle size, potential, encapsulation rate and drug loading, were 82...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938034/influence-of-partial-o%C3%A2-pressure-on-the-adhesion-proliferation-and-osteogenic-differentiation-of-human-dental-pulp-stem-cells-on-%C3%AE-tricalcium-phosphate-scaffold
#3
Jose Viña-Almunia, Cristina Mas-Bargues, Consuelo Borras, Juan Gambini, Marya El Alami, Jorge Sanz-Ros, Miguel Peñarrocha, Jose Vina
PURPOSE: To analyze, in vitro, the influence of O₂ pressure on the adhesion, proliferation, and osteogenic differentiation of human dental pulp stem cells (DPSC) on β-tricalcium phosphate (β-TCP) scaffold. MATERIALS AND METHODS: DPSC, positive for the molecular markers CD133, Oct4, Nestin, Stro-1, and CD34, and negative for CD45, were isolated from extracted third molars. Experiments were started by seeding 200,000 cells on β-TCP cultured under 3% or 21% O₂ pressure...
September 22, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28938033/effect-of-attachment-type-on-implant-strain-in-maxillary-implant-overdentures-comparison-of-ball-locator-and-magnet-attachments-part-1-overdenture-with-palate
#4
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: Implant overdentures with attachments have been used in clinical practice and the effect of attachments on implant strain has been frequently reported. However, most studies have focused on mandibular overdentures; there are few reports on maxillary overdentures. The purpose of this study was to examine the influence of attachment type on implant strain in maxillary overdentures under various implant configurations. MATERIALS AND METHODS: A maxillary edentulous model with implants and experimental overdentures were fabricated...
September 22, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28937907/direct-pulp-capping-in-primary-molars-using-mineral-trioxide-aggregate-an-in-vivo-study
#5
Elzbieta Luczaj-Cepowicz, Grazyna Marczuk-Kolada, Malgorzata Pawinska, Marta Obidzinska
OBJECTIVE: To do a clinical and radiographic evaluation of the effectiveness of MTA when used as a direct pulp capping material in primary molars. STUDY DESIGN: Clinical and radiographic follow-up was performed on 30 primary molars with deep caries lesions in 30 patients from 3 to 9.75 years of age. Pulps exposed during cavity preparation were treated by direct pulp capping with MTA. The follow-up clinical and radiographic examinations were carried out at different time intervals: 6, 7-12, 13-18, 19-24, and >24 months after treatment...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937899/microbiological-evaluation-of-ozone-on-dentinal-lesions-in-young-permanent-molars-using-the-stepwise-excavation
#6
Osama Safwat, Mona Elkateb, Karin Dowidar, Hala Abdel Salam, Omar El Meligy
AIM: To assess the microbial effect of ozone gas on dentinal lesions in young permanent molars using the stepwise excavation. STUDY DESIGN: An experimental, controlled clinical trial was performed. The sample included 80 immature first permanent molars, showing deep occlusal carious cavities that were indicated for stepwise excavation. Following first step of dentin excavation, the sample was divided into test (ozone gas) and control (calcium hydroxide (Ca(OH)2) base material) groups...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937894/microbiologic-evaluation-of-cotton-and-polytetrafluoroethylene-ptfe-tape-as-endodontic-spacer-materials-in-primary-molars-an-in-vivo-study
#7
Attiguppe Ramasetty Prabhakar, Kratika Dixit, O S Raju
OBJECTIVE: PTFE tape, which is commonly used as plumber's tape is an inorganic, non-fibrous, ribbon like material. The aim of this study was to evaluate PTFE tape as endodontic spacer material and to compare it with commonly used spacer material that is cotton, in primary teeth. STUDY DESIGN: Seventeen children undergoing pulpectomy of lower second primary molar bilaterally were included in the study. Cotton and PTFE tape were placed as spacers on each side randomly...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937893/effect-of-enamel-deproteinization-in-primary-teeth
#8
Ananthi Christopher, R Krishnakumar, N Venugopal Reddy, G Rohini
OBJECTIVE: To evaluate and compare the topographical features of enamel surface, etched with different materials. STUDY DESIGN: 10 extracted human primary molars were randomly selected and cut and trimmed to 1 mm(2). Each group comprised of 10 blocks and the enamel was treated as follows: Group I-35% H3PO4; Group II-5.25% NaOCl + 35% H3PO4 ;Group III-5.25% NaOCl; Group IV no treatment was carried out. All the samples were prepared for Scanning electron microscope analysis...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937890/the-use-of-restorative-materials-in-primary-molars-among-pediatric-dentists-in-israel
#9
Sigalit Blumer, Benjamin Peretz, Tal Ratson
OBJECTIVES: To assess the current choice of various restoration materials among Israeli pediatric dentists according to seniority and specialty. STUDY DESIGN: Participating dentists completed a 23-item questionnaire on their qualifications, type of practice and preference of restorative material. RESULTS: Seventy-five dentists (average age 46.27±12.6 years, 58 females) participated. Forty-one were specialist pediatric dentists and 34 were general practitioners...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937889/clinical-evaluation-of-ozone-on-dentinal-lesions-in-young-permanent-molars-using-the-stepwise-excavation
#10
Osama Safwat, Mona Elkateb, Karin Dowidar, Omar El Meligy
AIM: To evaluate the clinical changes in dentin of deep carious lesions in young permanent molars, following ozone application with and without the use of a remineralizing solution, using the stepwise excavation. STUDY DESIGN: The sample included 162 first permanent immature molars, showing deep occlusal carious cavities that were indicated for indirect pulp capping. Teeth were divided into 2 main groups according to the method of ozone treatment. Each group was further subdivided equally into test and control subgroups...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937754/bi-functional-elastin-like-polypeptide-nanoparticles-bind-rapamycin-and-integrins-and-suppress-tumor-growth-in-vivo
#11
Jugal P Dhandhukia, Pu Shi, Santosh Peddi, Zhe Li, Suhaas Rayudu Aluri, Yaping Ju, Dab Brill, Wan Wang, Siti Janib, Yi-An Lin, Shuanglong Liu, Honggang Cui, John Andrew MacKay
Recombinant protein-polymer scaffolds such as Elastin-Like Polypeptides (ELPs) offer drug delivery opportunities including biocompatibility, monodispersity, and multi-functionality. We recently reported that fusion of FK-506 binding protein 12 (FKBP) to an ELP nanoparticle (FSI) increases rapamycin (Rapa) solubility, suppresses growth of breast cancer xenografts, and reduces side-effects observed with free drug controls. This new report significantly advances this carrier strategy by demonstrating the co-assembly of two different ELP diblock copolymers containing drug-loading and tumor-targeting domains...
September 22, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28937099/no-post-no-core-approach-to-restore-severely-damaged-posterior-teeth-an-up-to-10-year-retrospective-study-of-documented-endocrown-cases
#12
(no author information available yet)
Endocrowns would appear to be '...a reliable approach to restore severely damaged molars and premolars'.
September 22, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28936294/microtensile-bond-strength-of-bulk-fill-restorative-composites-to-dentin
#13
Jyothi Mandava, Divya-Prasanna Vegesna, Ravichandra Ravi, Mohan-Rao Boddeda, Lakshman-Varma Uppalapati, M D Ghazanfaruddin
BACKGROUND: To facilitate the easier placement of direct resin composite in deeper cavities, bulk fill composites have been introduced. The Mechanical stability of fillings in stress bearing areas restored with bulk-fill resin composites is still open to question, since long term clinical studies are not available so far. Thus, the objective of the study was to evaluate and compare the microtensile bond strength of three bulk-fill restorative composites with a nanohybrid composite. MATERIAL AND METHODS: Class I cavities were prepared on sixty extracted mandibular molars...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28936293/does-the-postoperative-administration-of-antibiotics-reduce-the-symptoms-of-lower-third-molar-removal-a-randomized-double-blind-clinical-study
#14
María Martín-Ares, Cristina Barona-Dorado, Natalia Martínez-Rodríguez, Jorge Cortés-Bretón-Brinkmann, Javier Sanz-Alonso, José-María Martínez-González
BACKGROUND: To date there is little scientific evidence that clarifies the therapeutic effect of antibiotics for managing the postoperative symptoms of impacted third molar surgery. The aim of this study was to evaluate the efficacy of antibiotic treatment for reducing non-infectious clinical symptoms. MATERIAL AND METHODS: Patient data was collected from the patients´ medical records and the results were statistically evaluated with SPSS versión 21.0; SPSS, IBM; Chicago, IL, USA)...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28936044/ultrasonic-evaluation-of-influence-of-hard-acrylic-resin-denture-on-blood-flow-of-mandibular-denture-supporting-mucosa-utilizing-duplex-color-doppler-studies-an-in-vivo-study
#15
S Binsu, K Chandrasekharan Nair, Bijoy Jhon, Sanjna Nayar, Jose Julian, Muhammed Shahid
AIMS: To determine the influence of hard acrylic denture base materials on the blood flow of mandibular denture supporting mucosa over a period of six months time. MATERIALS AND METHODS: Select fifteen edentulous patients of age 55-75 years. The blood flow of the mandibular denture supporting mucosa was measured bilaterally in the molar region and in the incisor region utilizing Ultrasound colour Doppler (2D and Duplex Imaging). Measurements were performed prior to denture insertion and later after the dentures were worn for 1 month, 2 months, 3 months, 4 months, 5 months and 6 months...
July 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28936036/effect-of-denture-soft-liner-on-mandibular-ridge-resorption-in-complete-denture-wearers-after-6-and-12-months-of-denture-insertion-a-prospective-randomized-clinical-study
#16
B Dinesh Babu, Veena Jain, Gunjan Pruthi, Nidhi Mangtani, Rajath S Pillai
PURPOSE: Soft liners act as a cushion between the denture base and the residual ridge. Hence, it is important to study their effect on resorption of mandibular denture bearing area. Therefore, the purpose of this study was to evaluate the influence of soft denture liner on mandibular ridge resorption after 1 year in completely denture wearers. MATERIALS AND METHODS: Twenty-eight completely edentulous patients having age between 45 and 60 years with well-formed ridges in class I jaw relations were selected as per the inclusion and exclusion criterion...
July 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28935010/choline-chloride-oxalic-acid-as-a-deep-eutectic-solvent-based-innovative-digestion-method-for-the-determination-of-selenium-and-arsenic-in-fish-samples
#17
Abdul Haleem Panhwar, Mustafa Tuzen, Tasneem Gul Kazi
An innovative and effective digestion method based on choline chloride (ChCl)–oxalic acid (Ox) deepeutectic solvent (DES) was proposed for the determination of Se and As in fish samples via electrothermal atomic absorption spectrometry (ETAAS). The impacts of different variables, including the composition and volume of ChCl–Ox, temperature, and acid addition, on analyte recovery were studied for optimization. In this procedure, an 80 mg sample was dissolved in a 1:2 molar ratio of ChCl–Ox at 105°C for 40 min, with the subsequent addition of 4...
September 21, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28934718/urinary-bpa-and-phthalate-metabolite-concentrations-and-plasma-vitamin-d-levels-in-pregnant-women-a-repeated-measures-analysis
#18
Lauren E Johns, Kelly K Ferguson, David E Cantonwine, Thomas F McElrath, Bhramar Mukherjee, John D Meeker
BACKGROUND: In addition to its well-established role in maintaining skeletal health, vitamin D has essential regulatory functions in female reproductive and pregnancy outcomes. Phthalates and bisphenol A (BPA) are endocrine disruptors, and previous research has suggested that these chemical agents may disrupt circulating levels of total 25(OH)D in adults. OBJECTIVES: We investigated the relationships between repeated measures of urinary phthalate metabolites and BPA and circulating total 25(OH)D in a prospective cohort of pregnant women...
August 31, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934701/hydrothermal-synthesis-of-4zno%C3%A2-b2o3%C3%A2-h2o-ln-3-ln-eu-tb-phosphors-morphology-tunable-and-luminescence-properties
#19
Shiwei Cao, Yang Jiao, Weifang Han, Chunhua Ge, Bo Song, Jie Wang, Xiangdong Zhang
4ZnO·B2O3·H2O:Ln(3+) (Ln=Eu, Tb) phosphors with different morphologies have been successfully synthesized via one-step hydrothermal method through regulating the molar amount of Eu(3+) and Tb(3+). Comprehensive scanning electron microscopy (SEM), X-ray diffraction (XRD) Fourier transform infrared spectrum (FT-IR) and inductively coupled plasma atomic emission spectrometer (ICP-AES) characterizations all confirm that obtained products are 4ZnO·B2O3·H2O:Ln(3+) (Ln=Eu, Tb). The experimental results displayed that the morphology and photoluminescence of compounds is regularly changed with increased the molar amount of rare earth ions...
September 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28934687/the-role-of-thiocyanate-in-enhancing-the-process-of-sulfite-reducing-cr-vi-by-inhibiting-the-formation-of-reactive-oxygen-species
#20
Bo Jiang, Shuaishuai Xin, Yijie Liu, Haihong He, Lin Li, Yizhen Tang, Siyi Luo, Xuejun Bi
The reductive detoxification of Cr(VI) by sulfite is known as the prevailing strategy and can be successfully implemented for the treatment of Cr(VI)-contaminated waters. However, this method inevitably faces the challenges of excessive consumption of sulfite due to the generations of highly oxidative OH and SO4(-) during the process of sulfite reducing Cr(VI). In this study, we find that a small quantity of thiocyanate (SCN) can catalytically enhance the process efficiency of Cr(VI) reduction by sulfite and effectively prevent the excessive consumption of sulfite...
September 12, 2017: Journal of Hazardous Materials
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