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https://www.readbyqxmd.com/read/29784462/promoting-porcelain-zirconia-bonding-using-different-atmospheric-pressure-gas-plasmas
#1
Yi-Chuan Liu, Jung-Pei Hsieh, Yung-Chung Chen, Li-Li Kang, Chii-Shyang Hwang, Shu-Fen Chuang
OBJECTIVES: To evaluate the effects of different atmospheric-pressure plasma (APP) on the physicochemical properties of yttria-stabilized zirconia, and promoting the adhesion of veneering porcelain. METHODS: Cercon base zirconia disks were prepared to receive different treatments: as-polished, three APPs (oxygen, OP; argon, AP; and CF4 , CP), and grit-blasted (GB). Their surface roughness and hydrophilicity were measured, and surface morphology was examined either after treatments, after simulated porcelain firing, or additional thermal etching...
May 18, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29763497/additively-manufactured-titanium-and-cobalt-chromium-implant-frameworks-fit-and-effect-of-ceramic-veneering
#2
Per Svanborg, Alf Eliasson, Victoria Stenport
PURPOSE: The purpose of this study was to evaluate the fit of additively manufactured cobalt-chromium and titanium and CNC-milled titanium frameworks before and after ceramic veneering. MATERIALS AND METHODS: Ten stone casts simulating an edentulous maxilla provided with six abutment analogs were produced. For each stone cast, one additively manufactured cobalt-chromium framework (AM CoCr) and one titanium framework (AM Ti) were fabricated. The fit was analyzed with a coordinate measuring machine in three dimensions (x, y, and z axes) using best-fit virtual matching of center point coordinates, before and after ceramic veneering...
May 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29723313/a-five-year-retrospective-assay-of-implant-treatments-and-complications-in-private-practice-restorative-treatment-profiles-of-long-span-implant-supported-fixed-and-removable-dental-prostheses
#3
Vahed Parzham, Roy B Judge, Denise Bailey
PURPOSE: To describe the restorative treatment profiles of long-span (> three units), implant-supported dental prostheses (LIDPs) prescribed in 27 private practices in the state of Victoria, Australia, during the period from January 1, 2005, to December 31, 2009. The restorative treatment profiles of these prostheses refer to the framework/veneering materials, number of prosthetic units/supporting implants, location in the oral cavity, retention methods, and cantilever designs. LIDPs refer to implant-supported prostheses of fixed or removable design; namely, fixed partial dentures (IFPDs), fixed complete dentures (IFCDs), removable partial dentures (IRPDs), and complete overdentures (IODs)...
May 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29721230/role-of-coefficient-of-thermal-expansion-on-bond-strength-of-ceramic-veneered-yttrium-stabilized-zirconia
#4
Niwut Juntavee, Chollada Dangsuwan
Background: Incompatible coefficient of thermal expansion (CTE) is supposed to be a reason for chipping of ceramic veneered zirconia. This study evaluates the effect of veneering ceramic at varied CTE on bond strength to zirconia. Material and Methods: Zirconia disks (Z, Ø 10 mm, 1.0 mm thickness) were prepared from Y-TZP (Cercon®) and sintered at 1350°C for 6 hours. All zirconia disks were veneered with ceramics ((Ø 7.0 mm, 1.5 mm thickness) with varied CTE including VITADur® alpha (VDα), VITAVM®7 (VM7), VITAVM®9 (VM9), Cercon® ceramkiss (CCK), IPSe...
March 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29713430/repair-bond-strength-of-resin-composite-to-bilayer-dental-ceramics
#5
Ayse Seda Ataol, Gulfem Ergun
PURPOSE: The purpose of this study was to investigate the effect of various surface treatments (ST) on the shear bond strength of resin composite to three bilayer dental ceramics made by CAD/CAM and two veneering ceramics. MATERIALS AND METHODS: Three different bilayer dental ceramics and two different veneering ceramics were used (Group A: IPS e.max CAD+IPS e.max Ceram; Group B: IPS e.max ZirCAD+IPS e.max Ceram, Group C: Vita Suprinity+Vita VM11; Group D: IPS e...
April 2018: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29705528/influence-of-ageing-on-glass-and-resin-bonding-of-dental-glass-ceramic-veneer-adhesion-to-zirconia-a-fracture-mechanics-analysis-and-interpretation
#6
M V Swain, C Gee, K-C Li
Adhesion plays a major role in the bonding of dental materials. In this study the adhesion of two glass-ceramic systems (IPS e.max and VITABLOCS) to a zirconia sintered substrate using a glass (for IPS e.max) and resin (VITABLOCS) before and after exposure to ageing for 14 days in distilled water at 37°C are compared using two interfacial fracture mechanics tests, the 3 point bend Schwickerath (1,2) and 4 point bend [3] approaches. Both tests result in stable crack extension from which the strain energy release rate (G, N/m or J/m2 ) can be determined...
April 26, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29678585/fracture-load-of-metal-ceramic-monolithic-and-bi-layered-zirconia-based-posterior-fixed-dental-prostheses-after-thermo-mechanical-cycling
#7
Carlos López-Suárez, Raquel Castillo-Oyagüe, Verónica Rodríguez-Alonso, Christopher D Lynch, María-Jesús Suárez-García
OBJECTIVES: This study aims to evaluate the fracture load of differently fabricated 3-unit posterior fixed dental prostheses (FDPs) with an intermediate pontic. METHODS: Fifty sets of two stainless-steel abutments were randomly assigned to five groups (n = 10 each) depending on the material and technique used for manufacturing the FDPs: (1) Metal-ceramic (MC, control); (2) Lava Zirconia (LZ, bi-layered); (3) Lava Plus (LM, monolithic); (4) VITA In-Ceram YZ (YZ, bi-layered); and (5) IPS e-max ZirCAD (ZZ, bi-layered)...
April 17, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29670713/shear-bond-strength-of-ceramic-fused-to-cad-cam-milled-alloys
#8
Niwut Juntavee, San-Eak Oeng
Background: This study evaluated the metal ceramic bond strength of cast Ni-Cr, cast Co-Cr, sintered Co-Cr and milled Co-Cr alloys to ceramic through two application procedures including the ceramic layering technique and ceramic pressed-on technique. Material and Methods: Ceramic materials (Ø 8 mm, 1.5 mm thickness) were veneered by either the layering or pressed-on technique to cast Ni-Cr, cast Co-Cr, sintered Co-Cr and hard milled Co-Cr alloy disc (12 × 12 × 0...
January 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29665177/prosthodontic-complications-of-metal-ceramic-and-all-ceramic-complete-arch-fixed-implant-prostheses-with-minimum-5-years-mean-follow-up-period-a-systematic-review-and-meta-analysis
#9
REVIEW
Chi Kin Kenneth Wong, Unnati Narvekar, Haralampos Petridis
PURPOSE: The purpose of this systematic review and meta-analysis was to review and analyze the prosthodontic complications, survival, and success of metal-ceramic (MC) and all-ceramic (AC) complete-arch fixed implant dental prostheses (CFIDPs) with a minimum mean follow-up period of 5 years. METHODS: A structured literature search was conducted using 3 electronic databases (MEDLINE, the Cochrane Library, Web of Science) for clinical studies reporting on prosthodontic complications of metal-ceramic and/or all-ceramic CFIDPs published between 2000 and 2016...
April 17, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29657518/influence-of-light-activation-of-simplified-adhesives-on-the-shear-bond-strength-of-resin-cements-to-a-leucite-reinforced-ceramic
#10
Adilson Yoshio Furuse, Cassiana Koch Scotti, Alfredo Llerena-Icochea, Juliana Fraga Soares Bombonatti, Gisele Aihara Haragushiku, Carla Castiglia Gonzaga
Objective: This study aims to evaluate the influence of the light activation of simplified adhesives on the shear bond strength of resin cements to a glass-ceramic. Three factors were evaluated: (1) cement in two levels (light cured and dual cured); (2) adhesive in two levels (Single Bond 2 and Single Bond Universal), and (3) light activation in two levels (yes or no). Materials and Methods: Thirty-two 1-mm thick slices of a leucite-reinforced glass-ceramic (IPS Empress CAD) were divided into eight groups according to adhesive (Single Bond 2 or Single Bond Universal), cement (AllCem Veneer or AllCem), and light activation of the adhesive before application of the cement (yes or no)...
January 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/29628647/evaluation-of-degree-of-conversion-and-the-effect-of-thermal-aging-on-the-color-stability-of-resin-cements-and-flowable-composite
#11
Lúcia Trazzi Prieto, Cíntia Tereza Pimenta de Araújo, Josué Junior Araujo Pierote, Dayane Carvalho Ramos Salles de Oliveira, Erick Kamiya Coppini, Luís Alexandre Maffei Sartini Paulillo
Purpose: The aim of this in vitro study was to evaluate the color stability and degree of conversion (DC) of dual-cure and light-cure cements and flowable composites after thermal aging. Materials and Methods: A total of 50 human incisors were prepared and divided into six groups ( n = 10). Veneers were fabricated using IPS Empress Direct composite resin were bonded with three types of luting agents: Light-cured, conventional dual, and flowable composite according to the manufacturer's instructions...
January 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29627218/effect-of-chemical-surface-treatment-of-titanium-on-its-bond-with-dental-ceramics
#12
Monika Parchańska-Kowalik, Emilia Wołowiec-Korecka, Leszek Klimek
STATEMENT OF PROBLEM: Airborne-particle abrasion of titanium is a clinically accepted method of surface preparation. As a side effect of airborne-particle abrasion, particles of the abrasive material get embedded into the surface. How particle presence or removal from the titanium surface affects the strength of the titanium-ceramic bond is unclear. PURPOSE: The purpose of this in vitro study was to determine the effect of removing Al2 O3 particles embedded into the surface by means of chemical surface treatment on the strength of the titanium-ceramic bond...
April 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29627212/does-veneering-technique-affect-the-flexural-strength-or-load-to-failure-of-bilayer-y-tzp-a-systematic-review-and-meta-analysis
#13
REVIEW
Ana Maria Estivalete Marchionatti, Iana Lamadrid Aurélio, Liliana Gressler May
STATEMENT OF PROBLEM: Causes of failures of bilayer yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) restorations include the processing technique and the properties of the veneer ceramic. The effect of the veneering method on the mechanical behavior of veneered Y-TZP remains unclear. PURPOSE: The purpose of this systematic review was to assess the effect of the veneering method on the flexural strength and failure load of bilayer Y-TZP. MATERIAL AND METHODS: This study followed the Preferred Reporting Items for the Systematic Reviews and Meta-Analyses (PRISMA) statement...
April 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29600867/minimally-invasive-ceramic-restorations-a-step-by-step-clinical-approach
#14
Carlos Marcelo Archangelo, José Carlos Romanini, Karen Cristina Archangelo, Isis Almela Endo Hoshino, Rodolfo Bruniera Anchieta
Minimally invasive treatments are a dominant trend in dentistry. Due to the evolution of adhesive materials and ceramics, minimalistic ceramic restorations have been proposed as alternative treatment options to avoid unnecessary tooth reduction. The aim of this article is to show a clinical protocol for the correct diagnosis, treatment planning, and execution of minimally invasive ceramic veneers. Requiring only slight tooth preparation, this conservative technique is well-suited for restoration of teeth that need color and shape modification...
April 2018: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29584553/ultrathin-cad-cam-ceramic-occlusal-veneers-and-anterior-bilaminar-veneers-for-the-treatment-of-moderate-dental-biocorrosion-a-1-5-year-follow-up
#15
T H Resende, K R Reis, L H Schlichting, P Magne
Dental biocorrosion can produce a devastating impact on oral health. The restorative phase of the treatment should not cause additional damage of the remaining sound tooth structure. Ultrathin occlusal veneers are a conservative alternative to traditional onlays and complete crowns for the treatment of severe biocorrosive lesions. This strategy is explained in the present case report through a full-mouth rehabilitation of a patient with moderate biocorrosion. Maxillary anterior teeth were restored using the bilaminar technique (lingual direct composite veneers with labial ceramic veneers) and posterior teeth using ultrathin CAD-CAM ceramic occlusal veneers...
March 27, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29557398/immediately-loaded-zygomatic-implants-vs-conventional-dental-implants-in-augmented-atrophic-maxillae-4-months-post-loading-results-from-a-multicentre-randomised-controlled-trial
#16
Marco Esposito, Rubén Davó, Carlos Marti-Pages, Ada Ferrer-Fuertes, Carlo Barausse, Roberto Pistilli, Daniela Rita Ippolito, Pietro Felice
PURPOSE: To compare the clinical outcome of immediately loaded cross-arch maxillary prostheses supported by zygomatic implants vs conventional implants placed in augmented bone. MATERIALS AND METHODS: A total of 71 edentulous patients with severely atrophic maxillas, who did not have sufficient bone volume to place dental implants or when it was possible to place only two implants in the front area (minimal diameter 3.5 mm and length of 8 mm) and less than 4.0 mm of bone height subantrally, were randomised according to a parallel group design...
2018: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29551381/evaluation-of-the-ceramic-liner-bonding-effect-between-zirconia-and-lithium-disilicate
#17
Sung-Hoon Kim, Chan-Jin Park, Lee-Ra Cho, Yoon-Hyuk Huh
STATEMENT OF PROBLEM: Little information is available for the strength of bonding between zirconia and lithium disilicate as affected by surface pretreatment methods. PURPOSE: The purpose of this in vitro study was to investigate the shear bond strength (SBS) between zirconia core and lithium disilicate (LS2 ) veneered ceramic after surface pretreatments. MATERIAL AND METHODS: Fully sintered yttrium oxide partially stabilized tetragonal zirconia (Y-TZP) disk specimens were fabricated from zirconia ceramic materials...
March 15, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29526303/a-technique-to-facilitate-ceramic-veneer-cementation
#18
Ra'fat I Farah, Abdullah Fahad Aldhafeeri, Rakan Saud Alogaili
This report describes a technique to facilitate ceramic veneer cementation. By stabilizing a ceramic veneer in its fully seated position with miniature wooden spring clips before resin polymerization, excess luting resin cement can be removed from ceramic veneer margins without the risk of veneer dislodgement or fracture.
March 8, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29520468/ten-year-survival-and-chipping-rates-and-clinical-quality-grading-of-zirconia-based-fixed-dental-prostheses
#19
Maren Teichmann, Anna Lena Wienert, Marcia Rückbeil, Volker Weber, Stefan Wolfart, Daniel Edelhoff
OBJECTIVES: To prospectively evaluate the clinical long-term outcome of 3- to 6-unit fixed dental prostheses (FDPs) made of hot isostatic pressed (HIP) zirconia frameworks, veneered with a synthetic sintering glass-ceramic. MATERIALS AND METHODS: A total of 27 different restorations were cemented in 21 patients. FDPs were examined with regard to biological and technical complications/failures. Additionally, clinical quality was assessed based on (i) the California Dental Association (CDA) criteria, (ii) the patient's viewpoint according to Hickel, and (iii) periodontal parameters...
March 8, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29517875/survival-rates-and-complications-for-zirconia-based-fixed-dental-prostheses-in-a-period-up-to-10-years-a-systematic-review
#20
C Stefanescu, C Ionita, V Nechita, S Drafta, L Oancea, A Petre
AIMS: The purpose of this study was to methodically review the literature concerning the success and survival rates of zirconia fixed dental prostheses (FDPs). METHODS: A systematic search was conducted of MEDLINE, Elsevier and the Cochrane Library to identify relevant articles about zirconia FDPs. In order to obtain suitable articles, rigorous criteria were applied. The minimum follow-up period was five years. RESULTS: From a total of 986 articles identified in the first electronic search, only 10 matched the inclusion criteria...
March 8, 2018: European Journal of Prosthodontics and Restorative Dentistry
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