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Luting agent

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https://www.readbyqxmd.com/read/29676972/effect-of-resin-luting-systems-and-alumina-particle-air-abrasion-on-bond-strength-to-zirconia
#1
R Grasel, M J Santos, Hm Chagas Rêgo, M P Rippe, L F Valandro
This study aimed to evaluate the effect of different primer/resin luting agent combinations and alumina air abrasion on the adhesion to zirconia. Eighty blocks (4×4×3 mm) of Lava Frame Zirconia (3M ESPE) were produced and randomly assigned into eight groups (n=10) according to two zirconia surface treatments (untreated or air abrasion with 50-μm alumina particles) and four luting systems (SU: Scotchbond Universal/RelyX Unicem 2; ZP: Z-Prime Plus/Duo-link Universal; MB: Monobond Plus/Variolink II; and AP: Alloy Primer/ED Primer II/Panavia F 2...
May 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29673430/hypobaric-conditions-and-retention-of-dental-crowns-luted-with-manually-or-automixed-dental-cements
#2
Andrej M Kielbassa, Johannes A G Müller
BACKGROUND: There is only scant information on the influence of the hypobaric environment on luting agents and their efficacy on dental crown cementation. The objective of this study was to provide data on the retentive characters of two cements commonly used on implant abutment surfaces both under normal and under hypobaric conditions. METHODS: There were 56 implant abutments supplied with CAD/CAM milled zirconia oxide crowns. 1) A zinc phosphate cement (ZP), and 2) a resin-modified glass ionomer cement (RMGI), each mixed either A) manually or B) by means of automix capsules, were used for cementation...
May 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29670735/microleakage-of-porcelain-laminate-veneers-cemented-with-different-bonding-techniques
#3
Satheesh B Haralur
Background: Porcelain laminate veneers (PLV) are continued to be popular in modern dental practice due to its high aesthetic outcome and conservative tooth preparation. The composite resins are commonly used as luting agents for cementation of PLV. Polymerisation shrinkage induced marginal gap and interfacial leakage is the persistent limitation with the resin luting cements. The objective of the study was to assess the effect of various dentin bonding techniques on the microleakage after accelerated ageing in porcelain laminate veneres...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29656421/effect-of-cleaning-methods-on-retentive-values-of-saliva-contaminated-implant-supported-zirconia-copings
#4
Farahnaz Nejatidanesh, Omid Savabi, Ghazal Savabi, Mehdi Razavi
OBJECTIVE: The aim of this study was to evaluate the effect of different cleaning regimens on retentive strength of saliva-contaminated implant-supported zirconia copings. MATERIAL AND METHODS: Seventy solid titanium abutments with 5.5 mm height (Straumann) were attached to the regular neck implant analogs (Straumann). The abutment-analog complex was mounted vertically in an autopolymerized T-shaped acrylic resin block. Seventy zirconia copings with an occlusal loop were made...
April 15, 2018: Clinical Oral Implants Research
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
#5
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/29607851/evaluation-of-the-fracture-resistance-of-computer-aided-design-computer-aided-manufacturing-monolithic-crowns-prepared-in-different-cement-thicknesses
#6
N Polat Sagsoz, N Yanıkoglu
Introduction: The purpose of this study was to evaluate the fracture resistance of monolithic computer-aided design/computer-aided manufacturing (CAD/CAM) crowns that are prepared with different cement thickness. Materials and Methods: For this investigation, a human maxillary premolar tooth was selected. Master model preparation was performed with a demand bur under water spray. Master die was taken to fabricate 105 epoxy resin replicas. The crowns were milled using a CEREC 4 CAD/CAM system (Software Version, 4...
April 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29578300/coronal-microleakage-of-teeth-restored-with-cast-posts-and-cores-cemented-with-four-different-luting-agents-after-thermocycling
#7
Maryam Mohajerfar, Kaveh Nadizadeh, Tabasom Hooshmand, Elaheh Beyabanaki, Hamid Neshandar Asli, Siamak Sabour
PURPOSE: The apical seal provided by a root canal filling may be breached via coronal leakage. This study aimed to compare the teeth restored with custom-made cast metal posts and cores cemented with different luting agents in terms of coronal microleakage after thermocycling. MATERIALS AND METHODS: This in vitro study was conducted on 32 extracted single-canal teeth. Root canals were prepared by step-back technique and filled with gutta percha and sealer. The coronal 7 mm of gutta percha was removed, and post space was prepared using peeso reamers #2 and #3 consecutively...
March 26, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29513243/influence-of-plasma-based-dry-etching-on-the-bond-strength-of-y-tzp-ceramic
#8
Hugo Cezar Nogueira Alvim, Laís Regiane da Silva-Concílio, José Renato Cavalcanti de Queiroz, Marina Amaral, Rafael Pino Vitti, Ana Christina Claro Neves
The aim of this study was to evaluate the bond strength between an yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic and a luting agent when submitted to plasma etching surface treatment before and after thermocycling (TC) with 3000 cycles of 5°C-55°C. The null hypothesis was that the surface treatments and thermocycling would not influence the bond strength. A total of 160 Y-TZP ceramic blocks in 2 sizes (10 size 1 and 10 size 2 blocks in each group) were distributed into 8 groups: group C (control), no surface treatment; group C-TC, TC without prior surface treatment; group SAO, sandblasting with aluminum oxide (Al2O3); group SAO-TC, sandblasting with Al2O3 followed by TC; group SAOS, sandblasting with silica-coated Al2O3; group SAOS-TC, sandblasting with silica-coated Al2O3 followed by TC; group PE, plasma etching; and group PE-TC, plasma etching followed by TC...
March 2018: General Dentistry
https://www.readbyqxmd.com/read/29504886/fatigue-failure-load-of-restored-premolars-effect-of-etching-the-intaglio-surface-of-ceramic-inlays-with-hydrofluoric-acid-at-different-concentrations
#9
T Missau, A B Venturini, Gkr Pereira, C Prochnow, L F Valandro, M P Rippe
The aim of this study was to evaluate the effect of etching, with different hydrofluoric acid concentrations at the intaglio surface of feldspathic ceramic inlays, on the fatigue failure load of restored premolars. A total of 60 upper premolars were embedded in plastic cylinders with acrylic resin (up to 3 mm below the cement-enamel junction) and prepared using a device specially designed for that purpose. Teeth were randomly assigned to three groups (n=20): HF1, HF5, and HF10 (etching with hydrofluoric acid for 60 seconds at concentrations of 1%, 5%, and 10%, respectively)...
March 2018: Operative Dentistry
https://www.readbyqxmd.com/read/29503708/effects-of-abutment-diameter-luting-agent-type-and-re-cementation-on-the-retention-of-implant-supported-cad-cam-metal-copings-over-short-abutments
#10
Sina Safari, Fereshteh Hosseini Ghavam, Parviz Amini, Kaveh Yaghmaei
PURPOSE: The aim of this study was to evaluate the effects of abutment diameter, cement type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments. MATERIALS AND METHODS: Sixty abutments with two different diameters, the height of which was reduced to 3 mm, were vertically mounted in acrylic resin blocks with matching implant analogues. The specimens were divided into 2 diameter groups: 4.5 mm and 5.5 mm (n=30). For each abutment a CAD/CAM metal coping was manufactured, with an occlusal loop...
February 2018: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/29383829/failure-load-effect-of-molar-axial-wall-height-with-cad-cam-ceramic-crowns-with-moderate-occlusal-convergence
#11
Wyeth Hoopes, Sara Cushen, Nicholas DuVall, Michael Wajdowicz, John Brewster, Howard Roberts
OBJECTIVES: To evaluate the significance of axial wall height (AWH) in molar fracture resistance involving CAD/CAM adhesively bonded, all-ceramic full coverage restorations on preparations with moderate total occlusal convergence (TOC) (16°). MATERIALS AND METHODS: 60 newly extracted maxillary third molars were divided into 5 groups (n = 12). Specimens were prepared for full-coverage, all ceramic restorations with occlusal cervical AWHs of 4, 3, 2, 1 as well as a flat preparation (0 mm AWH) with all preparations with AWH containing a moderate 16° TOC...
January 31, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29379905/preheated-composite-resin-used-as-a-luting-agent-for-indirect-restorations-effects-on-bond-strength-and-resin-dentin-interfaces
#12
Marcelo Goulart, Barbara Borges Veleda, Deisi Damin, Glaucia Maria Bovi Ambrosano, Fabio Herrmann Coelho de Souza, Maria Carolina Guilherme Erhardt
PURPOSE: The aim of this study was to evaluate the effect of preheating composite resins used as luting agents for indirect restorations on microtensile bond strength (µTBS) and adhesive interfaces. MATERIAL AND METHODS: Fifty sound extracted third molars were used. Ten experimental groups were formed with three different luting agents: one resin cement (RelyX ARC) and two composite resins (Venus and Z250 XT). The composite resins were tested both at room temperature and when preheated to 64°C...
2018: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/29358152/how-proteolytic-inhibitors-interact-with-dentin-on-glass-fiber-post-luting-over-6-months
#13
Larissa Pinceli Chaves, Thales Lippi Ciantelli, Diana F G Araújo, Marina Ciccone Giacomini, Leo Tjäderhane, Polliana Mendes Candia Scaffa, Heitor Marques Honório, Linda Wang
OBJECTIVES: Enzyme inhibitors minimize the degradation of unprotected collagen of dentin promoted by matrix metalloproteinases (MMPs) and cysteine cathepsins (CCs). As the evidence of their effect on the root canal is limited, this study aimed to evaluate the role of EDTA, chlorhexidine and E-64 as antiproteolytic agents on the bond strength (BS) of glass-fiber posts in root canals. MATERIALS AND METHODS: Ninety-six bovine roots were distributed in groups for each time point (n = 8)...
March 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29326512/evaluating-the-effect-of-different-conditioning-agents-on-the-shear-bond-strength-of-resin-modified-glass-ionomers
#14
Namith Rai, Rajaram Naik, Ravi Gupta, Shobana Shetty, Amith Singh
Aim of the Study: This study aims to evaluate the effects three different conditioning agents on the shear bond strength of resin-modified glass ionomers to human dentin. Materials and Methods: One hundred and twenty recently extracted, caries-free premolars and molars will be cleaned of debris and disinfected in a 0.5% solution of sodium hypochlorite and sterile water for 30 min. The occlusal surface of each tooth will be reduced using conventional model trimmer with water to produce the dentin surface...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29284956/effect-of-surface-modifications-on-the-retention-of-cement-retained-implant-crowns-under-fatigue-loads-an-in-vitro-study
#15
R Ajay, K Suma, Seyed Asharaf Ali, Jambai Sampath Kumar Sivakumar, V Rakshagan, V Devaki, K Divya
Background: Masticatory forces cause fatigue to the dental luting agents, adversely affecting the retention of these cement-retained crowns. Sandblasting (SB) and diamond abrading the abutment surface improves the bond strength of luting agents. However, the effect of acid etching (AE) on the implant abutment surface and the effect of other surface modifications under masticatory load are yet to be documented. Purpose: The aim of the study was to evaluate the effect of abutment surface modifications on the retention of cement-retained restorations subjected to cyclic fatigue loads...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29169661/light-irradiance-through-novel-cad-cam-block-materials-and-degree-of-conversion-of-composite-cements
#16
Diogo Pedrollo Lise, Annelies Van Ende, Jan De Munck, Kumiko Yoshihara, Noriyuki Nagaoka, Luiz Clovis Cardoso Vieira, Bart Van Meerbeek
OBJECTIVE: To assess light irradiance (LI) delivered by two light-curing units (LCU's) and to measure the degree of conversion (DC) of three composite cements, when cured through different thicknesses of two novel CAD-CAM block materials. METHODS: 100-μm-thick films of a dual-curable composite cement (G-CEM LinkAce, GC), a light-curable flowable resin-based composite (RBC) (G-ænial Universal Flo, GC) and a micro-hybrid RBC (G-ænial Posterior, GC) were investigated as luting agents...
February 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29143388/in-vitro-assessment-of-retention-and-resistance-failure-loads-of-teeth-restored-with-a-complete-coverage-restoration-and-different-core-materials
#17
Vasileia Tsiagali, Yvoni Kirmanidou, Argirios Pissiotis, Konstantinos Michalakis
PURPOSE: To investigate in vitro the retention and the resistance form, as well as the failure modes of maxillary premolars restored with cast metal crowns and different core materials. MATERIALS AND METHODS: Sixty human extracted maxillary premolars were selected according to their size and were embedded in PMMA resin blocks. After removing a part of their clinical crowns, the teeth were randomly divided into 3 groups of 20 teeth and were either left unrestored, or they were restored with amalgam or composite resin...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29079354/effect-of-luting-agent-on-the-load-to-failure-and-accelerated-fatigue-resistance-of-lithium-disilicate-laminate-veneers
#18
Marco M M Gresnigt, Mutlu Özcan, Marco Carvalho, Priscilla Lazari, Marco S Cune, Peywand Razavi, Pascal Magne
OBJECTIVE: The aim of this study was to investigate the influence of the luting agent on the application of laminate veneers (LVs) in an accelerated fatigue and load-to-failure test after thermo-cyclic aging. METHODS: Sound maxillary central incisors (N=40) were randomly divided into four groups to receive LVs (Li2 Si2 O5 ) that were adhesively bonded: Group CEMF: Adhesive cement (Variolink Esthetic LC), fatigue test; Group CEMLF: Adhesive cement, load-to-failure test; Group COMF: Resin composite (Enamel HFO), fatigue test; Group COMLF: Resin composite, load-to-failure test...
December 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29042724/evaluation-of-bond-strength-between-grooved-titanium-alloy-implant-abutments-and-provisional-veneering-materials-after-surface-treatment-of-the-abutments-an-in-vitro-study
#19
Gowtham Venkat, Murugesan Krishnan, Suganya Srinivasan, Muthukumar Balasubramanian
INTRODUCTION: Titanium has become the material of choice with greater applications in dental implants. The success of the dental implant does not only depend on the integration of the implant to the bone but also on the function and longevity of the superstructure. The clinical condition that demands long-term interim prosthesis is challenging owing to the decreased bond between the abutment and the veneering material. Hence, various surface treatments are done on the abutments to increase the bond strength...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28989131/comparison-of-hypersensitivity-in-metal-ceramic-crowns-cemented-with-zinc-phosphate-and-self-adhesive-resin-a-prospective-study
#20
Thatapudi Shankar, Mirna Garhnayak, Lokanath Garhnayak, Angurbala Dhal, Aswini K Kar
BACKGROUND: Luting agents used to fix artificial prostheses, such as fixed partial denture (FPD) to tooth are basically viscous in nature and show chemical reaction for fixation. Postcementation hypersensitivity is a frequent complaint of patients. The present study was conducted to compare postcementation hypersensitivity with zinc phosphate and self-adhesive resin in complete coverage crown. MATERIALS AND METHODS: This study included 30 patients in which 60 porcelein fused to metal crowns was placed...
October 1, 2017: Journal of Contemporary Dental Practice
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