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affect of etching ceramics

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https://www.readbyqxmd.com/read/29661579/effect-of-acid-etching-on-tridimensional-microstructure-of-etchable-cad-cam-materials
#1
Fabián Murillo-Gómez, Regina Guenka Palma-Dibb, Mario Fernando De Goes
OBJECTIVE: Evaluate if etching protocols affect superficial/internal microstructural integrity of CAD/CAM ceramic materials. METHODS: Sixty blocks (3×3×3mm) of IPS/Empress-LEU, IPS/e.max-LDC (Ivoclar-Vivadent) and Enamic-PIC (VITA) were used. Lateral surfaces from each block were isolated with Teflon strip and petroleum jelly to keep them untouched. Specimens were distributed into 6 groups (n=10): 1. no treatment (C); 2. hydrofluoric acid (HF) 5%, 20s (HF5%20s); 3...
April 13, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29627218/effect-of-chemical-surface-treatment-of-titanium-on-its-bond-with-dental-ceramics
#2
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/29588077/fatigue-failure-load-of-two-resin-bonded-zirconia-reinforced-lithium-silicate-glass-ceramics-effect-of-ceramic-thickness
#3
Jaiane Bandoli Monteiro, Hilton Riquieri, Catina Prochnow, Luís Felipe Guilardi, Gabriel Kalil Rocha Pereira, Alexandre Luiz Souto Borges, Renata Marques de Melo, Luiz Felipe Valandro
OBJECTIVES: To evaluate the effect of ceramic thickness on the fatigue failure load of two zirconia-reinforced lithium silicate (ZLS) glass-ceramics, adhesively cemented to a dentin analogue material. METHODS: Disc-shaped specimens were allocated into 8 groups (n=25) considering two study factors: ZLS ceramic type (Vita Suprinity - VS; and Celtra Duo - CD), and ceramic thickness (1.0; 1.5; 2.0; and 2.5mm). A trilayer assembly (ϕ=10mm; thickness=3.5mm) was designed to mimic a bonded monolithic restoration...
March 24, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29570027/high-bond-durability-of-universal-adhesives-on-glass-ceramics-facilitated-by-silane-pretreatment
#4
C Yao, H Yang, J Yu, L Zhang, Y Zhu, C Huang
OBJECTIVE: This study aimed to investigate the long-term effectiveness of ceramic-resin bonding with universal adhesives in non-silane-pretreated and silane-pretreated modes after 10,000 cycles of thermal aging. METHODS AND MATERIALS: All Bond Universal, Adhese Universal, Clearfil Universal Bond, and Single Bond Universal were selected. Etched lithium disilicate glass ceramics were prepared, randomly assigned to groups, and pretreated with or without ceramic primer containing silane coupling agent prior to the application of universal adhesive (ie, silane-pretreated or non-silane-pretreated mode)...
March 23, 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29519988/effect-of-adhesive-resin-cements-on-bond-strength-of-ceramic-core-materials-to-dentin
#5
M Gundogdu, L I Aladag
Objectives: The aim of the present study was to evaluate the effects of self-etch and self-adhesive resin cements on the shear bond strength of ceramic core materials bonded to dentin. Materials and Methods: Extracted, caries-free, human central maxillary incisor teeth were selected, and the vestibule surfaces were cut flat to obtain dentin surfaces. Ceramic core materials (IPS e.max Press and Prettau Zirconia) were luted to the dentin surfaces using three self-etch adhesive systems (Duo-Link, Panavia F 2...
March 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29507918/ultrastructural-analysis-and-long-term-evaluation-of-composite-zirconia-bond-strength
#6
Moustafa N Aboushelib, Hala Ragab, Mohamed Arnaot
PURPOSE: To evaluate the influence of different aging techniques on zirconia-composite microtensile bond strength using different surface treatments over a 5-year follow-up period. MATERIALS AND METHODS: Zirconia disks received three surface treatments: airborne-particle abrasion with 50-μm aluminum oxide particles, selective infiltration etching (SIE), or fusion sputtering (FS). The specimens were bonded to pre-aged composite disks using a composite cement containing phosphate monomers (Panavia F2...
2018: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/29476584/retrospective-evaluation-of-extended-heat-pressed-ceramic-veneers-after-a-mean-observational-period-of-7-years
#7
Sven Rinke, Anne-Kathrin Pabel, Xenia Schulz, Matthias Rödiger, Gerhard Schmalz, Dirk Ziebolz
OBJECTIVES: Retrospective evaluation of extended anterior glass-ceramic veneers 7 years after placement in a private practice. MATERIALS AND METHODS: A total of 31 patients (20 females/11 males) underwent restoration with adhesively luted extended veneers that were fabricated using heat-pressed glass-ceramic (Cergo, Dentsply Sirona). A single dentist restored 101 teeth (maxilla, n = 65; mandible, n = 36). Adhesive cementation was performed using an etch-and-rinse adhesive (OptibondFL, Kerr Corporation), and two different dual-curing composite cements (Variolink, Ivoclar Vivadent/Calibra, Dentsply Sirona)...
February 24, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29323782/the-effect-of-surface-treatments-on-the-mechanical-and-optical-behaviors-of-cad-cam-restorative-materials
#8
Sevcan Kurtulmus-Yilmaz, Esra Cengiz, Salim Ongun, Izgen Karakaya
PURPOSE: To evaluate the effect of different surface treatments on mechanical and optical properties of lithium disilicate ceramic (IPS e.max CAD), 2 resin nanoceramics (Lava Ultimate, GC Cerasmart), and polymer-infiltrated ceramic network material (Vita Enamic). MATERIALS AND METHODS: CAD/CAM blocks were sectioned into 4 × 1 × 14 mm3 bars for three-point bending test and 1 × 8 × 8 mm3 square specimens were obtained for color and translucency measurements. Bar-shaped and square specimens were divided into five groups according to the surface treatment method as: control (no treatment), hydrofluoric acid etching, airborne-particle abrasion, 2 W and 3 W Er,Cr:YSGG laser irradiation (n = 10)...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29140719/effects-of-different-etching-methods-and-bonding-procedures-on-shear-bond-strength-of-orthodontic-metal-brackets-applied-to-different-cad-cam-ceramic-materials
#9
S Kutalmış Buyuk, Ahmet Serkan Kucukekenci
OBJECTIVE: To investigate the shear bond strength (SBS) of orthodontic metal brackets applied to different types of ceramic surfaces treated with different etching procedures and bonding agents. MATERIALS AND METHODS: Monolithic CAD/CAM ceramic specimens (N = 120; n = 40 each group) of feldspathic ceramic Vita Mark II, resin nanoceramic Lava Ultimate, and hybrid ceramic Vita Enamic were fabricated (14 × 12 × 3 mm). Ceramic specimens were separated into four subgroups (n = 10) according to type of surface treatment and bonding onto the ceramic surface...
November 15, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28988143/fatigue-failure-load-of-zirconia-reinforced-lithium-silicate-glass-ceramic-cemented-to-a-dentin-analogue-effect-of-etching-time-and-hydrofluoric-acid-concentration
#10
Jaiane Bandoli Monteiro, Marcelo Gallo Oliani, Luis Felipe Guilardi, Catina Prochnow, Gabriel Kalil Rocha Pereira, Marco Antonio Bottino, Renata Marques de Melo, Luiz Felipe Valandro
This study aimed to evaluate the effect of etching time and hydrofluoric acid (HF) concentration on the fatigue failure load and surface characteristics of zirconia-reinforced lithium silicate glass (ZLS) ceramic cemented to a dentin-like, fiber reinforced epoxy resin. Ceramic (Suprinity, VITA) (1.0mm thick) and epoxy resin (2.5mm thick) discs (10mm diameter) were produced. The bonding surface of the ceramic samples was nonetched (control group), or etched for 30, 60 or 90s by 5% or 10% HF. The epoxy resin discs were etched by 10% HF for 30s followed by the application of an adhesive material (Single Bond Universal, 3M ESPE)...
September 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28597007/tensile-bond-strength-of-so-called-universal-primers-and-universal-multimode-adhesives-to-zirconia-and-lithium-disilicate-ceramics
#11
Adham Elsayed, Feras Younes, Frank Lehmann, Matthias Kern
PURPOSE: To test the bond strength and durability after artificial aging of so-called universal primers and universal multimode adhesives to lithium disilicate or zirconia ceramics. MATERIALS AND METHODS: A total of 240 ceramic plates, divided into two groups, were produced and conditioned: 120 acid-etched lithium disilicate plates (IPS e.max CAD) and 120 air-abraded zirconia plates (Zenostar T). Each group was divided into five subgroups (n = 24), and a universal restorative primer or multimode universal adhesive was used for each subgroup to bond plexiglas tubes filled with a composite resin to the ceramic plate...
2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28569445/can-cleansing-regimens-effectively-eliminate-saliva-contamination-from-lithium-disilicate-ceramic-surface
#12
Alexandre L S Borges, Sumana Posritong, Mutlu Özcan, Fernanda Campos, Renata Melo, Marco C Bottino
This study evaluated the effect of cleaning protocols on the bond strength of resin cement to glass-ceramic. Ceramic specimens (N=120, n=12 per group) were etched with hydrofluoric acid and rinsed with water. After saliva contamination, specimens were cleaned as follows: water, 37% H3PO4, cleaning-paste (Ivoclean), or isopropanol. Non-contaminated specimens acted as the control. Resin cement was bonded to the specimens, and tested either after 24 h or x5000 thermocycling. Both the cleaning method (p=0.001) and the storage conditions (p=0...
March 2017: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28459245/does-post-etching-cleaning-influence-bond-strength-of-lithium-disilicate-laminate-veneers
#13
Ana Paula Rodrigues Magalhães, Rafael Almeida Decurcio, Gerardo Patricio Durán Ojeda, Terence Romano Teixeira, Paula de Carvalho Cardoso
This paper aims to present a clinical case of laminate veneers in lithium disilicate (LD) reinforced ceramic, complemented with scanning electron microscopy and energy dispersive x-ray spectroscopy analysis of this ceramic's surfaces submitted to some of the different post-etching cleaning protocols proposed by literature. Many dentists are applying all-ceramic restorations, especially veneers, with the most applied material being LD, due to its good mechanical properties, esthetics, and ability to adhere to tooth substrate...
May 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28243304/comparison-of-bond-strength-of-metal-and-ceramic-brackets-bonded-with-conventional-and-high-power-led-light-curing-units
#14
Javad Chalipa, Yasamin Farajzadeh Jalali, Fatemeh Gorjizadeh, Pedram Baghaeian, Mohammad Hashem Hoseini, Omid Mortezai
OBJECTIVES: The aim of this study was to evaluate the effect of conventional and high-power light emitting diode (LED) light curing units on shear bond strength (SBS) of metal and ceramic brackets to tooth surface. MATERIALS AND METHODS: Forty sound bovine maxillary central incisors were used for the study. The teeth were divided into four groups (n=10). Teeth surfaces were etched with 37% phosphoric acid for 20 seconds. After applying a uniform layer of adhesive primer on the etched enamel, composite was placed on the base of brackets...
November 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28174009/ceramic-strengthening-by-tuning-the-elastic-moduli-of-resin-based-luting-agents
#15
Aloísio O Spazzin, Ataís Bacchi, Rodrigo Alessandretti, Mateus B Santos, Gabriela R Basso, Jason Griggs, Rafael R Moraes
OBJECTIVE: Resin-based luting agents (RBLAs) with tuned elastic moduli (E) were prepared and their influence on the strengthening, reliability, and mode of failure of luted feldspar ceramic was investigated. METHODS: RBLAs with low E (2.6GPa), intermediate E (6.6GPa), and high E (13.3GPa) were prepared and used to coat acid-etched ceramic disks. Positive (untreated ceramic) and negative (acid-etched ceramic) control groups were tested. The response variables (n=30) were biaxial flexural strength (σbf , MPa), characteristic strength (σ0 , MPa), and Weibull modulus at the ceramic surface (z=0) and luting agent surface (z=-t2 )...
March 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27982231/low-fusing-porcelain-glaze-application-on-3y-tzp-surfaces-can-enhance-zirconia-porcelain-adhesion
#16
Lígia Tiaki Yamamoto, Vinícius Anéas Rodrigues, Lucio Strazzabosco Dornelles, Marco Antonio Bottino, Luiz Felipe Valandro, Renata Marques de Melo
The aim of this study was to assess whether surface treatment improves zirconia-porcelain adhesion. The 3Y-TZP blocks were cut into squares, then polished and sintered. The zirconia surface treatments were performed as follows: no treatment (C); tribochemical silica coating (TBS); glaze application + hydrofluoric acid etching (GA); glaze application + hydrofluoric acid etching + silanization (GAS); deposition of silica nanofilm (NF). After treatments, veneering porcelain cylinders (3.3 x 3.3 mm) were built up on all specimens and fired...
September 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27933322/silicone-disclosing-material-used-after-ceramic-surface-treatment-reduces-bond-strength
#17
Sara Fraga, Sara Cioccari Oliveira, Gabriel Kalil Rocha Pereira, Pieter Beekman, Marília Pivetta Rippe, Cornelis J Kleverlaan
PURPOSE: To evaluate the effect of a silicone disclosing procedure performed at different timepoints on the shear bond strength (SBS) of cements (self-adhesive composite cement, self-etch composite cement, resin-reinforced glass-ionomer cement) to different substrates (zirconia, lithium disilicate, bovine dentin). MATERIALS AND METHODS: The substrate/cement combinations were assigned to two groups (n = 15) according to the timepoint, at which the vinyl polyether silicone disclosing agent was applied: after (experimental groups, EXP) or before (control groups, CTRL) specific micromechanical treatments of the substrate surface...
2016: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/27892839/influence-of-adhesive-type-and-placement-technique-on-postoperative-sensitivity-in-posterior-composite-restorations
#18
Trf Costa, M Rezende, A Sakamoto, B Bittencourt, P Dalzochio, A D Loguercio, A Reis
PURPOSE: This double blind, randomized clinical trial compared the postoperative sensitivity of the placement technique (incremental and bulk fill) in posterior composite resin restorations bonded with two different adhesive strategies (self-etch and etch-and-rinse). METHODS: Posterior dental cavities of 72 participants (n=236), with a cavity depth of at least 3 mm, were randomly divided into four groups. The restorations were bonded using either the etch-and-rinse Tetric N-Bond (Ivoclar Vivadent) or the self-etch Tetric N-Bond SE (Ivoclar Vivadent)...
March 2017: Operative Dentistry
https://www.readbyqxmd.com/read/27692582/effect-of-silane-contamination-on-dentin-bond-strength
#19
Liang Chen, Barry D Hammond, Gary Alex, Byoung In Suh
STATEMENT OF PROBLEM: Intraoral repair of porcelain or other silica-based ceramics typically requires the use of silane in the repair protocol. Some porcelain intraoral repairs also involve bonding to exposed or involved tooth tissues including dentin. A study is needed to evaluate whether the cross-contamination of dentin with silane affects bond strength to this tissue. PURPOSE: The purpose of this in vitro study was to investigate the effect of silane cross-contamination on dentin bond strength...
March 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27647389/does-acid-etching-morphologically-and-chemically-affect-lithium-disilicate-glass-ceramic-surfaces
#20
Yukinori Maruo, Goro Nishigawa, Masao Irie, Kumiko Yoshihara, Takuya Matsumoto, Shogo Minagi
BACKGROUND: This study evaluated the surface morphology, chemical composition and adhesiveness of lithium disilicate glass ceramic after acid etching with hydrofluoric acid or phosphoric acid. METHODS: Lithium disilicate glass ceramic specimens polished by 600-grit silicon carbide paper were subjected to one or a combination of these surface treatments: airborne particle abrasion with 50-μm alumina (AA), etching with 5% hydrofluoric acid (HF) or 36% phosphoric acid (Phos), and application of silane coupling agent (Si)...
January 26, 2017: Journal of Applied Biomaterials & Functional Materials
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