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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28007396/academy-of-dental-materials-guidance-on-in-vitro-testing-of-dental-composite-bonding-effectiveness-to-dentin-enamel-using-micro-tensile-bond-strength-%C3%AE-tbs-approach
#9
Steve Armstrong, Lorenzo Breschi, Mutlu Özcan, Frank Pfefferkorn, Marco Ferrari, Bart Van Meerbeek
OBJECTIVE: An ideal dental adhesive should provide retentive strength, marginal seal, be relatively simple to achieve and demonstrate clinical durability. Future improvements in adhesive bonding to tooth structure require in vitro test methods that provide reliable data for materials development and/or evaluation of experimental variables. The objective of this project was to identify a test method that is relatively easy to perform, repeatable and ultimately useful for predicting clinical outcomes...
December 19, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28000276/screw-retained-vs-cement-retained-implant-supported-fixed-dental-prosthesis
#10
REVIEW
Julia-Gabriela Wittneben, Tim Joda, Hans-Peter Weber, Urs Brägger
A fixed dental prosthesis can be secured to an endosseous implant via cementation (using a provisional or definitive cement) on an implant abutment that is screw retained to the implant or directly in the implant via screw retention. The clinical decision as to which retention system best suits the individual patient depends on several factors. The aim of this review is to present a detailed overview of the factors potentially influencing whether to choose screw retention or cement retention. These factors include the individual indication, advantages and disadvantages of the different retention mechanisms, the retention provided, retrievability, provisionalization, esthetics and clinical performance, including failures and complications...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/27995137/biomechanical-consequences-of-the-elastic-properties-of-dental-implant-alloys-on-the-supporting-bone-finite-element-analysis
#11
Esteban Pérez-Pevida, Aritza Brizuela-Velasco, David Chávarri-Prado, Antonio Jiménez-Garrudo, Fernando Sánchez-Lasheras, Eneko Solaberrieta-Méndez, Markel Diéguez-Pereira, Felipe J Fernández-González, Borja Dehesa-Ibarra, Francesca Monticelli
The objective of the present study is to evaluate how the elastic properties of the fabrication material of dental implants influence peri-implant bone load transfer in terms of the magnitude and distribution of stress and deformation. A three-dimensional (3D) finite element analysis was performed; the model used was a section of mandibular bone with a single implant containing a cemented ceramic-metal crown on a titanium abutment. The following three alloys were compared: rigid (Y-TZP), conventional (Ti-6Al-4V), and hyperelastic (Ti-Nb-Zr)...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27984088/ten-year-survival-and-complication-rates-of-lithium-disilicate-empress-2-tooth-supported-crowns-implant-supported-crowns-and-fixed-dental-prostheses
#12
Maren Teichmann, Fabian Göckler, Volker Weber, Murat Yildirim, Stefan Wolfart, Daniel Edelhoff
OBJECTIVES: To prospectively evaluate the clinical long-term outcome of tooth-supported crowns (SCs), implant-supported crowns (ISCs), and fixed dental prostheses (FDPs) made of a lithium-disilicate glass-ceramic framework material (IPS Empress 2). MATERIALS AND METHODS: Between 1997 and 1999, a total of 184 restorations (106 SCs, 32 ISCs, 33 FDPs, and 13 diverse restorations) were placed in 73 patients. Kaplan-Meier estimation was applied for survival and chipping-free rates...
January 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/27982181/bonding-of-the-polymer-polyetheretherketone-peek-to-human-dentin-effect-of-surface-treatments
#13
Regina Furbino Villefort Rocha, Lilian Costa Anami, Tiago Moreira Bastos Campos, Renata Marques de Melo, Rodrigo Othávio de Assunção E Souza, Marco Antonio Bottino
Polyetheretherketone (PEEK) is a material suitable for frameworks of fixed dental prostheses. The effect of different surface treatments on the bond strength of PEEK bonded to human dentin was evaluated. One hundred PEEK cylinders (3 mm×3 mm) were divided into five groups according to surface treatment: silica coating, sandblasting with 45 μm Al2O3 particles, etching with 98% sulfuric acid for 5, 30 and for 60 s. These cylinders were luted with resin cement onto 50 human molars. First, each tooth was embedded in epoxy resin and the buccal dentin surface was exposed...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27977814/clinical-evaluation-of-the-influence-of-connection-type-and-restoration-height-on-the-reliability-of-zirconia-abutments-a-retrospective-study-on-965-abutments-with-a-mean-6-year-follow-up
#14
Giacomo Fabbri, Mauro Fradeani, Gianluca Dellificorelli, Marco De Lorenzi, Fernando Zarone, Roberto Sorrentino
This multicenter retrospective clinical study aimed to evaluate the clinical performance of zirconia abutments in anterior and posterior regions, focusing on implant-abutment connections and restoration vertical height (RVH). Six experienced prosthodontists used 965 computer-aided design/computer-assisted manufacture zirconia abutments in 601 patients. Different surgical approaches were taken according to the needs of each patient. The final restorations were all-ceramic single crowns and short-span fixed dental prostheses...
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27965491/in-vitro-comparative-evaluation-of-various-restorative-materials-used-for-restoring-class-iii-cavities-in-deciduous-anterior-teeth-a-clinical-study
#15
Harsh Priyank, Ankita Verma, Komal Gupta, Esha Chaudhary, Deepak Khandelwal, Shweta Nihalani
INTRODUCTION: Beauty standards in today's modernized world scenario are formed by well-aligned and well-designed bright white teeth. One of the major reasons behind patients reporting to dental clinics is pain. Caries in the anterior primary teeth forms one of the major concerns from a restorative point of view. Very few studies are quoted in literature which stresses on the follow-up of anterior restorations in primary teeth. Hence, we evaluated and compared the efficacy of composite resin and resin-modified glass ionomer cement (RGIC) for class III restorations in primary anterior teeth...
December 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27965482/comparative-evaluation-of-antibacterial-effect-of-dental-luting-cements-on-streptococcus-mutans-and-lactobacillus-acidophilus-an-in-vitro-study
#16
Sma Feroz, A Bhoyar, S Khan
INTRODUCTION: This study aimed at evaluating and comparing the antibacterial activity of six types of dental luting cements on Streptococcus mutans and Lactobacillus acidophilus using the agar diffusion test (ADT) and the direct-contact test (DCT). The antibacterial activity in ADT was measured based on the diameter of the zone of inhibition formed, whereas in DCT the density of the bacterial suspension was measured. The lower the density of the suspension, the more antibacterial activity the cement possesses...
December 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27939825/long-term-clinical-outcomes-of-endodontically-treated-teeth-restored-with-or-without-fiber-post-retained-single-unit-restorations
#17
Kevin A Guldener, Carla L Lanzrein, Beatrice E Siegrist Guldener, Niklaus P Lang, Christoph A Ramseier, Giovanni E Salvi
INTRODUCTION: The aim of the present study was to evaluate both survival and failure rates of endodontically treated teeth restored with or without fiber post-retained restorations after a mean observation period of at least 5 years. METHODS: A total of 144 single-rooted and multirooted teeth in 100 subjects were endodontically treated following a predetermined aseptic protocol and restored with either a fiber post and a composite core or a composite filling without intraradicular retention...
December 7, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27927285/in%C3%A2-vitro-effects-of-dental-cements-on-hard-and-soft-tissues-associated-with-dental-implants
#18
Lucas C Rodriguez, Juliana N Saba, Kwok-Hung Chung, Chandur Wadhwani, Danieli C Rodrigues
STATEMENT OF PROBLEM: Dental cements for cement-retained restorations are often chosen based on clinician preference for the product's material properties, mixing process, delivery mechanism, or viscosity. The composition of dental cement may play a significant role in the proliferation or inhibition of different bacterial strains associated with periimplant disease, and the effect of dental cements on host cellular proliferation may provide further insight into appropriate cement material selection...
December 4, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27895345/a-review-of-the-failed-cases-of-dental-implants-at-a-university-hospital-in-karachi-pakistan
#19
Farhan Raza Khan, Rabia Ali, Sana Ehsan Nagi
The retrospective study was conducted to assess the dental implants that experienced failure. It was conducted at the dental clinic of the Aga Khan University Hospital, Karachi, and comprised record of dental implants from July 2010 to June 2015. Variables such as patient age, gender and systemic status, length and diameter of implants, bone grafting, type of definitive prosthesis (crown or bridge or overdenture), nature of retention (cement versus screw retained), loading strategy (immediate versus delayed loading), etc...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27895098/brain-aluminium-accumulation-and-oxidative-stress-in-the-presence-of-calcium-silicate-dental-cements
#20
K Demirkaya, B Can Demirdöğen, Z Öncel Torun, O Erdem, E Çırak, Y M Tunca
Mineral trioxide aggregate (MTA) is a calcium silicate dental cement used for various applications in dentistry. This study was undertaken to test whether the presence of three commercial brands of calcium silicate dental cements in the dental extraction socket of rats would affect the brain aluminium (Al) levels and oxidative stress parameters. Right upper incisor was extracted and polyethylene tubes filled with MTA Angelus, MTA Fillapex or Theracal LC, or left empty for the control group, were inserted into the extraction socket...
November 27, 2016: Human & Experimental Toxicology
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