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https://www.readbyqxmd.com/read/28209001/comparative-evaluation-of-fluoride-releasing-ability-of-various-restorative-materials-after-the-application-of-surface-coating-agents-an-in-vitro-study
#1
Gvs Kishore, A J Sai-Sankar, Mjs Pratap-Gowd, M Sridhar, Kakarla Pranitha, V S Sai-Krishna
INTRODUCTION: Fluoride plays a key role in prevention of dental caries and is also an essential element for oral health promotion both in children and adults. AIM: The aim of the present study was to evaluate the effect of surface coating (petroleum jelly, G-Coat Plus) on the fluoride releasing property of conventional Glass Ionomer Cement (GIC) and Zirconomer. MATERIALS AND METHODS: A total of 30 disk shaped brass mold specimens (6±0.1mm in diameter and 2±0...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28196604/addition-of-bioactive-glass-to-glass-ionomer-cements-effect-on-the-physico-chemical-properties-and-biocompatibility
#2
T De Caluwé, C W J Vercruysse, I Ladik, R Convents, H Declercq, L C Martens, R M H Verbeeck
OBJECTIVES: Glass ionomer cements (GICs) are a subject of research because of their inferior mechanical properties, despite their advantages such as fluoride release and direct bonding to bone and teeth. Recent research aims to improve the bioactivity of the GICs and thereby improve mechanical properties on the long term. In this study, two types of bioactive glasses (BAG) (45S5F and CF9) are combined with GICs to evaluate the physico-chemical properties and biocompatibility of the BAG-GIC combinations...
February 10, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28174363/subjective-differences-between-dentists-and-patients-about-relative-quality-of-metal-ceramic-restorations-placed-in-the-esthetic-zone
#3
Mohammed M Al Moaleem, Faisal M Alkhayrat, Hussam A Madkhali, Ibrahim H Geathy, Mohammed Aw Qahhar, Ahmed Yaqoub, Khurshid A Mattoo
INTRODUCTION: Esthetic perceptions could differ between the dentist and his patients among various regions and cultures. AIM: The aims of this study were to evaluate the subjective differences between the dentist and the patient in terms of esthetics of metal-ceramic crowns (MCcs). The study also aims to compare the mesiodistal (MD) and buccolingual (BL) dimensions of the cemented crown with its respective natural antimeric tooth. MATERIALS AND METHODS: A total of 85 patients seeking treatment for a single crown (MC) were treated by the undergraduate students under supervision of respective academic staff...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28152234/evaluation-of-two-protocols-to-measure-the-accuracy-of-fixed-dental-prostheses-an-in-vitro-study
#4
Joana Schönberger, Kurt-Jürgen Erdelt, Daniel Bäumer, Florian Beuer
PURPOSE: The aim of this in vitro study was to compare two measurement protocols of the internal and marginal fit of three-unit zirconia fixed dental prostheses (FDPs). MATERIALS AND METHODS: Forty-four FDPs were fabricated for standardized dies by two laboratory CAD/CAM systems: Cercon (n = 22) and Ceramill (n = 22). The fitting was tested using a replica technique (RT = technique 1) with a light-body silicone stabilized with heavy-body material. After producing the replicas, cross-sections were made in the buccolingual and mesiodistal directions...
February 2, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28139479/antibacterial-effect-and-physical-properties-of-chitosan-and-chlorhexidine-cetrimide-modified-glass-ionomer-cements
#5
Apurva Mishra, Ramesh Kumar Pandey, Natesan Manickam
AIMS: To compare antibacterial effect and physical properties of chitosan (CH) modified glass ionomer cement (GIC) (10% v/v), chlorhexidine-cetrimide (CHX-CT) modified GIC (2.5/2.5% w/w) and conventional GIC. MATERIALS AND METHODS: A total of fifty healthy children of age 7-12 years were selected and randomly assigned to class A and B for in vivo analysis. Slabs of CH modified GIC (Group II) along with slabs of conventional GIC (Group I, control) were cemented on buccal surfaces of maxillary molars (split-mouth technique) for class A children...
January 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28138190/effects-of-medical-and-mental-status-on-treatment-modalities-in-patients-treated-under-general-anaesthesia-at-the-ktu-faculty-of-dentistry-in-trabzon-turkey-a-comparative-retrospective-study
#6
Ozgul Baygin, Tamer Tuzuner, Adem Kusgoz, Gorkem Yahyaoglu, Nagehan Yilmaz, Simge Aksoy
This study evaluated the differences in dental conditions and treatment modalities between disabled and non-cooperative healthy children under general anaesthesia. The data were collected from paediatric patients between 3 and 15 years of age who received dental treatment under general anaesthesia. Patients with at least one mental/physical disturbance (group 1) and other healthy non-cooperative patients (group 2) were compared with regard to gender, age, weight, and treatment time-type. The statistical analyses were performed using Fisher's exact and Mann-Whitney U tests...
February 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28128328/antimicrobial-activity-of-proroot-mta-in-contact-with-blood
#7
C Farrugia, P Baca, J Camilleri, M T Arias Moliz
Dental materials based on Portland cement, which is used in the construction industry have gained popularity for clinical use due to their hydraulic properties, the interaction with tooth tissue and their antimicrobial properties. The antimicrobial properties are optimal in vitro. However in clinical use contact with blood may affect the antimicrobial properties. This study aims to assess whether antimicrobial properties of the Portland cement-based dental cements such as mineral trioxide aggregate (MTA) are also affected by contact with blood present in clinical situations...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28124108/the-infra-meniscal-fibers-of-the-anterolateral-ligament-are-stronger-and-stiffer-than-the-supra-meniscal-fibers-despite-similar-histological-characteristics
#8
Gillian Corbo, Madeleine Norris, Alan Getgood, Timothy A Burkhart
PURPOSE: The purpose of the current investigation was to characterize biomechanical differences between the supra- and infra-meniscal sections of the anterolateral ligament (ALL). We hypothesized that the supra-meniscal fibers of the ALL would be stronger and stiffer than the infra-meniscal fiber. METHODS: Nine cadaveric knee specimens [mean (SD) age = 79 (14.6) years] were dissected to identify the borders of the ALL while maintaining the anatomy of the lateral meniscus...
January 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28118929/effects-of-two-grading-techniques-of-zirconia-material-on-the-fatigue-limit-of-full-contour-3-unit-fixed-dental-prostheses
#9
Regina Furbino Villefort, Marina Amaral, Gabriel Kalil Rocha Pereira, Tiago Moreira Bastos Campos, Yu Zhang, Marco Antonio Bottino, Luiz Felipe Valandro, Renata Marques de Melo
OBJECTIVE: This study evaluated the effects of two grading techniques of zirconia material on the fatigue limit of full-contour 3-unit fixed dental prostheses (FDPs). METHODS: Presintered blocks of 3Y-TZP were milled to obtain sixty-nine 3-unit FDPs, which were divided into three groups (n=23). The control group (CTL) was sintered and glazed following manufacturer's instructions. In the two experimental groups presintered FDPs received a surface silica/glass infiltration treatment before the sintering process...
January 21, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28111135/fracture-resistance-of-glazed-full-contour-zls-incisor-crowns
#10
Franz Sebastian Schwindling, Stefan Rues, Marc Schmitter
PURPOSE: To compare the failure behaviour of zirconia-reinforced lithium silicate (Celtra Duo, DeguDent) with that of lithium disilicate (IPS e.max CAD, Ivoclar Vivadent) and feldspar (Mark II, VITA) ceramics. METHODS: Three groups of sixteen glazed maxillary incisor crowns were produced. The inner surfaces of the crowns were etched, then luted to metal dies with self-adhesive cement. Single load-to-failure tests were performed before and after thermo-mechanical ageing...
January 19, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28102922/effect-of-the-unfilled-space-size-of-the-abutment-screw-access-hole-on-the-extruded-excess-cement-and-retention-of-single-implant-zirconia-crowns
#11
Sulieman S Al-Johany, Mohammad D Al Amri, Ahmed S Al-Bakri, Mohammed N Al-Qarni
PURPOSE: To evaluate in vitro the effect of the size of the unfilled space of the abutment screw access hole on the amount of extruded excess cement and the retention of zirconia copings. MATERIALS AND METHODS: Twelve dental implant replicas were attached to the corresponding abutments and embedded in acrylic resin blocks. A total of 36 CAD/CAM zirconia copings were fabricated by one technician using the standard technique. Abutments were divided into group I: the entire screw access channel was completely filled (nonspaced); group II: 1-mm-spaced; and group III: 2-mm-spaced...
January 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28100024/evaluation-of-cast-re-orientation-on-a-dental-surveyor-using-three-tripod-techniques-a-survey-and-in-vitro-study
#12
Mohammed E Sayed, Idris A Busaily, Rana J Nahari, Ruaa O Hakami, Sami M Maashi, Naveen R Ramireddy
PURPOSE: To survey different educational levels (i.e., students, interns, technicians, and prosthodontic faculty) with regard to their opinions, attitudes, and adoption of three selected tripod techniques. The study will also investigate the accuracy of these techniques to reposition casts on the dental surveyor in anterio-posterior (AP) and lateral directions at both technique and educational levels. MATERIALS AND METHODS: Tripod points, scored lines, and cemented post tripod techniques were used in this study...
January 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28090743/cement-associated-peri-implant-mucositis-a-1-year-follow-up-after-excess-cement-removal-on-the-peri-implant-tissue-of-dental-implants
#13
Michael Korsch, Winfried Walther, Andreas Bartols
BACKGROUND: Methacrylate-based cements seem to promote peri-implant tissue inflammation even in the absence of excess cement. PURPOSE: The present study deals with the question of whether the removal of methacrylate cement from the peri-implant sulcus will lead to peri-implant tissues free of inflammation on a 1-year follow-up basis. MATERIAL AND METHODS: Implant supported suprastructures that had been in the mouth for at least 3.5 years either cemented with methacrylate (premier implant cement [PIC]) or zinc eugenol (temp bond [TB]) cement were compared...
January 15, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28089332/lithium-silicate-endocrown-fabricated-with-a-cad-cam-system-a-functional-and-esthetic-protocol
#14
Leonardo Fernandes da Cunha, Carla Castiglia Gonzaga, Janes Francio Pissaia, Gisele Maria Correr
An endocrown restoration is an alternative approach to complete crowns with intraradicular cores or dowels for the restoration of endodontically treated teeth. Endocrowns conserve tooth structure and require fewer dental visits. This approach has been widely used, and various materials and techniques have been reported. Computer-aided design and computer-aided manufacturing (CAD-CAM) systems can generate and store libraries of teeth with various anatomies in their database, and diagnostic tooth waxing may not be required...
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28077291/in-vitro-dentin-barrier-cytotoxicity-testing-of-some-dental-restorative-materials
#15
R D Jiang, H Lin, G Zheng, X M Zhang, Q Du, M Yang
OBJECTIVES: To investigate the cytotoxicity of four dental restorative materials in three-dimensional (3D) L929 cell cultures using a dentin barrier test. METHODS: The cytotoxicities of light-cured glass ionomer cement (Vitrebond), total-etching adhesive (GLUMA Bond5), and two self-etching adhesives (GLUMA Self Etch and Single Bond Universal) were evaluated. The permeabilities of human dentin disks with thicknesses of 300, 500, and 1000μm were standardized using a hydraulic device...
January 8, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28076496/evaluation-of-dentin-hypersensitivity-treatment-with-glass-ionomer-cements-a-randomized-clinical-trial
#16
Marina de Matos Madruga, Adriana Fernandes da Silva, Wellington Luiz de Oliveira da Rosa, Evandro Piva, Rafael Guerra Lund
A randomized, double-blind, split-mouth clinical trial was performed compared the desensitizing efficacy of the resin-modified glass ionomer cement (GIC) ClinproTM XT (3M ESPE, Minnesota, USA) and the conventional GIC Vidrion R (SS White, Gloucester, UK) in a 6-month follow-up. Subjects were required to have at least two teeth with dentin hypersensitivity. Teeth were divided at random into 2 groups, one group received Clinpro XT and the other conventional GIC Vidrion R. Treatments were assessed by tactile and air blast tests using Visual Analogue Scale (VAS) at baseline, after 20 minutes, and at 7, 15, 21, 30, 90 and 180 days post-treatment...
January 5, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28072486/radiopacity-of-composite-luting-cements-using-a-digital-technique
#17
Walter Dukic
PURPOSE: The aim of this in vitro study was to evaluate the radiopacity of 20 common dental composite luting materials using a digital technique. MATERIALS AND METHODS: A 1-mm-thick specimen of each material with a human tooth slice and aluminium step wedge were tested using digital radiographs under four combinations of exposure and voltage. The radiopacity in pixels was determined using computer software. The equivalent thickness of aluminium for each material was then calculated based on the calibration curve...
January 10, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28054040/systematic-review-on-highly-viscous-glass-ionomer-cement-resin-coating-restorations-part-ii-%C3%A2-do-they-merge-minamata-convention-and-minimum-intervention-dentistry
#18
Andrej M Kielbassa, Georg Glockner, Michael Wolgin, Karl Glockner
BACKGROUND: With the Minamata Convention the use of mercury will be phased down, and this undoubtedly will have an effect on dental treatment regimens and economic resources. Composite resin restorations are considered viable alternatives to amalgam fillings; however, these will not be covered completely by health insurance systems in many countries. Recently, a high-viscosity glass-ionomer cement (hvGIC) processed with a resinous coating (RC) has been introduced, and has been marketed as a restorative material in load-bearing Class I cavities (and in Class II cavities with limited size), thus serving as a possible alternative to amalgam fillings...
2017: Quintessence International
https://www.readbyqxmd.com/read/28045315/composition-and-microstructure-of-mta-and-aureoseal-plus-xrf-eds-xrd-and-fesem-evaluation
#19
L Cianconi, P Palopoli, V Campanella, M Mancini
AIM: The aim of this study was to determine the chemical composition and the phases' microstructure of Aureoseal Plus (OGNA, Italy) and ProRoot MTA (Dentsply Tulsa Dental, USA) and to compare their characteristics. MATERIALS AND METHODS: Study Design: Comparing Aureoseal Plus and ProRoot MTA microstructure by means of several analyses type. The chemical analysis of the two cements was assessed following the UNI EN ISO 196-2 norm. X-Ray fluorescence (XRF) was used to determine the element composition...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28044248/the-opinion-of-children-and-their-parents-about-four-different-types-of-dental-restorations-in-a-public-health-service-in-brazil
#20
R Maciel, D Salvador, K Azoubel, R Redivivo, C Maciel, C da Franca, E Amerongen, V Colares
AIM: To investigate the opinion of children and their parents of four different types of restoration placed in primary molars. METHODS: A mixed method study in which both children and their parents were involved. In the quantitative study, children and parents gave their opinion using a face scale about four different types of restoration immediately after placement, evaluating how satisfied they were. In the qualitative part, children and their parents were interviewed to report their preference among the four types of restoration using dental models and photos...
January 2, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
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