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https://www.readbyqxmd.com/read/28222871/evaluation-of-hypersensitivity-after-the-placement-of-metal-ceramic-crowns-cemented-with-two-luting-agents-long-term-results-of-a-prospective-clinical-study
#1
Carla Kozmacs, Katharina Schaper, Hans-Christoph Lauer, Andree Piwowarczyk
STATEMENT OF PROBLEM: Different luting materials are available for the cementation of fixed dental prostheses. Postcementation hypersensitivity is an occasional complication in the definitive delivery. How the choice of luting agent affects long-term postcementation sensitivity is unknown. PURPOSE: The purpose of this prospective, randomized, controlled, split-mouth clinical trial was to compare the hypersensitivity of 2 cementation methods for metal ceramic crowns...
February 17, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28209008/effect-of-resin-bonded-luting-agents-influencing-marginal-discrepancy-in-all-ceramic-complete-veneer-crowns
#2
Dhanraj Ganapathy, Anusha Sathyamoorthy, Hemalatha Ranganathan, Karthikeyan Murthykumar
INTRODUCTION: Marginal discrepancy severely affects the long term success of All ceramic complete veneer crowns. The precise role of resin luting agents influencing this phenomenon needs to be explored further. AIM: To estimate and compare the marginal discrepancy in CAD/CAM processed All ceramic complete veneer crowns prior and following luting with resin bonded luting agents. MATERIALS AND METHODS: Extracted human maxillary first premolars were randomly allocated into four groups of 27 samples each Viz...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28194358/effect-of-adhesive-luting-on-the-fracture-resistance-of-zirconia-compared-to-that-of-composite-resin-and-lithium-disilicate-glass-ceramic
#3
Myung-Jin Lim, Kwang-Won Lee
OBJECTIVES: The purpose of this study was to evaluate the effect of adhesive luting on the fracture resistance of zirconia compared to that of a composite resin and a lithium disilicate glass ceramic. MATERIALS AND METHODS: The specimens (dimension: 2 mm × 2 mm × 25 mm) of the composite resin, lithium disilicate glass ceramic, and yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) were prepared. These were then divided into nine groups: three non-luting groups, three non-adhesive luting groups, and three adhesive luting groups, for each restorative material...
February 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28174009/ceramic-strengthening-by-tuning-the-elastic-moduli-of-resin-based-luting-agents
#4
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)...
February 4, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28174008/setting-characteristics-and-mechanical-properties-of-self-adhesive-resin-luting-agents
#5
Raphael Pilo, Dimitris Papadogiannis, Spiros Zinelis, George Eliades
OBJECTIVE: To evaluate the degree of conversion (DC%), salt yield and mechanical properties of self-adhesive luting agents (SAA) set under dual-cure (E) and self-cure (NE) modes. METHODS: Three SAA (GC LinkAce/GCLA, MaxCem Elite/MXEL, Rely-X Unicem 2/RXUN) and an adhesive resin luting agent (Rely-X Ultimate/RXUL-control) were used. The properties tested under E and NE modes were a) DC% and phosphate salt yield after 10min, 1h (h) and 3 weeks (w) storage, by infrared spectroscopy; and b) the mechanical properties of 3w-stored specimens by instrumented indentation testing (Martens hardness/HM, Elastic modulus/EIT, Elastic index/ηIT) and microscopic Vickers hardness/VH...
February 4, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28117855/marginal-sealing-of-a-porcelain-%C3%A2-laminate-veneer-luted-with-%C3%A2-three-different-resin-cements-%C3%A2-on-fluorosed-teeth
#6
Fereshteh Shafiei, Mahtab Memarpour, Zahra Jowkar
AIM: The purpose of this study was to investigate the sealing ability of three different resin cements for the luting of a porcelain laminate veneer (PLV) to the enamel and dentin of fluorosed teeth. MATERIALS AND METHOD: Thirty incisors with moderate fluorosis according to the Thylstrup-Fejerskov Index (TFI = 4 to 6) received a veneer preparation with dentin margins at the gingival third. The IPS Empress (Ivoclar Vivadent) veneers were luted to the teeth of three groups (n = 10) using three different resin cements: Group 1: Excite DSC/Variolink II - etch-and-rinse (E&R), Group 2: ED Primer II/Clearfil Esthetic - self-etch (SE), Group 3: RelyX Unicem - self-adhesive (SA)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28116425/-effects-of-mmps-inhibitors-on-microleakage-with-wet-bonding-technique
#7
Cong Zhao, Shuang Chi, He Li, Tian-Bo Li, Zhi-Min Zhang
PURPOSE: To observe the effects of matrix metalloproteinases(MMPs) inhibitors on microleakage with wet bonding technique. METHODS: Twenty-seven premolars were randomly assigned to 3 groups. Class Ⅴ cavities were prepared in the neck of the teeth and treated with distilled water, 2% chlorhexidine (CHX) or 2% monocycline (MI) for 60 seconds. Resin was used to restore the prepared cavities following application of luting agent. Samples in each group were soaked for 1 h with 10% NaClO and then 2 layers of nail polish were applied, followed by treatment with 50wt% ammoniated silver nitrate (ASN), and developing solution in turn...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/27933322/silicone-disclosing-material-used-after-ceramic-surface-treatment-reduces-bond-strength
#8
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...
December 8, 2016: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/27904087/push-out-bond-strength-of-a-new-post-system-after-various-post-space-treatments
#9
Melek Akman, Ayçe Unverdi Eldeniz, Selen Ince, Mehmet Burak Guneser
To assess the effect of post-space treatment with chelating agents on the push-out bond-strength of a glass fiber post-system. Fortyeight human teeth were decoronated. The roots were prepared to size 40 and obturated. The post-spaces were prepared with PeesoReamer drills. The post-spaces were irrigated with (i) NaOCl and EDTA with chlorhexidine (QMix), (ii) NaOCl and EDTA, (iii) NaOCl and Citric acid, (iv) NaOCl and saline as a control group. i-TFC glass fiber posts were then luted with i-TFC bond system. The samples were horizontally sectioned...
2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27894521/effect-of-3-cements-on-white-spot-lesion-formation-after-full-coverage-rapid-maxillary-expander-a-comparative-in-vivo-study
#10
Ahmet Yagci, Yasemin Nur Korkmaz, Filiz Yagci, Aykan Onur Atilla, Suleyman Kutalmiş Buyuk
INTRODUCTION: The aim of this study was to assess the effects of 3 luting agents (glass ionomer cement, compomer, and polycarboxylate cement) on white spot lesion formation in patients with full-coverage bonded acrylic splint expanders. White spot lesion formation was assessed with quantitative light-induced fluorescence. METHODS: Full-coverage rapid maxillary expanders were cemented with glass ionomer cement, compomer, and polycarboxylate cement in groups 1, 2, and 3, respectively...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27890356/does-8-methacryloxyoctyl-trimethoxy-silane-8-mots-improve-initial-bond-strength-on-lithium-disilicate-glass-ceramic
#11
Yukinori Maruo, Goro Nishigawa, Kumiko Yoshihara, Shogo Minagi, Takuya Matsumoto, Masao Irie
OBJECTIVES: Dental ceramic surfaces are modified with silane coupling agents, such as γ-methacryloxypropyl trimethoxy silane (γ-MPTS), to improve bond strength. For bonding between lithium disilicate glass ceramic and resin cement, the objective was to investigate if 8-methacryloxyoctyl trimethoxy silane (8-MOTS) could yield a similar performance as the widely used γ-MPTS. METHODS: One hundred and ten lithium disilicate glass ceramic specimens were randomly divided into 11 groups (n=10) according to pretreatment regime...
November 24, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27881331/in%C3%A2-vitro-assessment-of-retention-and-resistance-failure-loads-of-two-preparation-designs-for-maxillary-anterior-teeth
#12
Aimilia Bintivanou, Argirios Pissiotis, Konstantinos Michalakis
STATEMENT OF PROBLEM: Parallel labiolingual walls and the preservation of the cingulum in anterior tooth preparations have been advocated. However, their contribution to retention and resistance form has not been evaluated. PURPOSE: The purpose of this in vitro study was to evaluate the retention and resistance failure loads of 2 preparation designs for maxillary anterior teeth. MATERIAL AND METHODS: Forty metal restorations were fabricated and paired with 40 cobalt-chromium prepared tooth analogs...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27832968/fifteen-year-survival-of-anterior-all-ceramic-cantilever-resin-bonded-fixed-dental-prostheses
#13
Matthias Kern
PURPOSE: The aim of this follow-up study was to report the long-term outcome of all-ceramic cantilever resin-bonded fixed dental prostheses (RBFDPs). MATERIALS AND METHODS: In 16 patients (mean age of 33.3±17.5years) 22 RBFDPs made from a glass-infiltrated alumina ceramic (In-Ceram) were inserted with a phosphate monomer containing luting agent after air-abrasion of the retainer wings. The abutment preparation included a shallow groove on the cingulum and a small proximal box...
January 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/27829765/comparative-study-on-the-tensile-bond-strength-and-marginal-fit-of-complete-veneer-cast-metal-crowns-using-various-luting-agents-an-in-vitro-study
#14
B Devi Parameswari, M Rajakumar, G Lambodaran, Shyam Sundar
INTRODUCTION: Several commercially available luting agents are used to cement the dental restorations such as intra-coronal, extra-coronal, and fixed partial dentures. Tensile bond strength (TBS) and accurate marginal fit are the essential factors to determine the good clinical results in fixed prosthesis. The retentivity of the luting cements is assessed by their adhesive capacity over the tooth surface and metal surface. Generally, the adhesive ability has been evaluated with in vitro testing, with tensile bond tests...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27822468/retention-strength-after-compressive-cyclic-loading-of-five-luting-agents-used-in-implant-supported-prostheses
#15
Angel Alvarez-Arenal, Ignacio Gonzalez-Gonzalez, Hector deLlanos-Lanchares, Aritza Brizuela-Velasco, Javier Pinés-Hueso, Joseba Ellakuria-Echebarria
The purpose of this study was to evaluate and compare the retention strength of five cement types commonly used in implant-retained fixed partial dentures, before and after compressive cyclic loading. In five solid abutments screwed to 5 implant analogs, 50 metal Cr-Ni alloy copings were cemented with five luting agents: resin-modified glass ionomer (RmGI), resin composite (RC), glass ionomer (GI), resin urethane-based (RUB), and compomer cement (CC). Two tensile tests were conducted with a universal testing machine, one after the first luting of the copings and the other after 100,000 cycles of 100 N loading at 0...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27802123/marginal-adaptation-and-quality-of-interfaces-in-lithium-disilicate-crowns-influence-of-manufacturing-and-cementation-techniques
#16
C A Melo Freire, G A Borges, Dbm Caldas, R S Santos, S A Ignácio, R F Mazur
PURPOSE: To evaluate the cement line thickness and the interface quality in milled or injected lithium disilicate ceramic restorations and their influence on marginal adaptation using different cement types and different adhesive cementation techniques. METHODS AND MATERIALS: Sixty-four bovine teeth were prepared for full crown restoration (7.0±0.5 mm in height, 8.0 mm in cervical diameter, and 4.2 mm in incisal diameter) and were divided into two groups: CAD/CAM automation technology, IPS e...
November 1, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27703610/silver-nanoparticles-in-resin-luting-cements-antibacterial-and-physiochemical-properties
#17
Ana-Paula-Rodrigues Magalhães, Francine-Couto-Lima Moreira, Denise-Ramos-Silveira Alves, Cyntia-Rodrigues-Araújo Estrela, Carlos Estrela, Marcus-Santos Carrião, Andris-Figueiroa Bakuzis, Lawrence-Gonzaga Lopes
BACKGROUND: Silver has a long history of use in medicine as an antimicrobial and anti-inflammatory agent. Silver nanoparticles (NAg) offer the possibility to control the formation oral biofilms through the use of nanoparticles with biocidal, anti-adhesive, and delivery abilities. This study aims to evaluate the antibacterial effect of resin luting cements with and without NAg, and their influence on color, sorption and solubility. MATERIAL AND METHODS: NAg were incorporated to two dual-cured resin cements (RelyX ARC (RA) color A1 and RelyX U200 (RU) color A2) in two concentrations (0...
October 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27689840/water-sorption-and-solubility-of-luting-agents-used-under-ceramic-laminates-with-different-degrees-of-translucency
#18
C L Leal, Apv Queiroz, R M Foxton, S Argolo, P Mathias, A N Cavalcanti
PURPOSE: The aim of this study was to evaluate the effect of low-thickness ceramic laminate translucency on water sorption and solubility in resin luting agents. METHODS AND MATERIALS: Ceramic slides (15×0.7 mm) were generated using lithium disilicate (IPS e.max Press, Ivoclar-Vivadent, Schaan, Liechtenstein) that were A1 in color and had decreasing degrees of translucency (high, medium, and low). A slide of transparent glass of similar size was used as the control...
September 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27666498/selected-physical-properties-of-new-resin-modified-glass-ionomer-luting-cements
#19
Jason R Garner, Michael N Wajdowicz, Nicholas B DuVall, Howard W Roberts
STATEMENT OF PROBLEM: Two resin-modified glass ionomer (RMGI)-based luting agents have been recently marketed without independent reports of their physical properties. PURPOSE: The purpose of this in vitro study was to evaluate selected physical properties of 2 newly marketed RMGI luting agents and compare the findings with traditional materials. MATERIAL AND METHODS: Specimens (N=12) of Nexus RMGI, UltraCem, GC Fuji Cem 2, and RelyX Luting Plus were fabricated using standardized molds for flexural strength and fracture toughness according to manufacturer recommendations and stored in physiologic phosphate-buffered saline solution at 37°C until testing...
February 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27659085/a-comparative-study-of-the-retentive-strengths-of-commercial-and-indigenously-developed-luting-cements-using-both-lathe-cut-and-clinically-simulated-specimens
#20
Joe Mathew, Byju P Kurian, Biju Philip, Sunil Mohammed, Preetha Menon, Rajan S Raj
INTRODUCTION: Superior adhesive strength in luting agents is of paramount significance in fixed partial denture success. In this in vitro study five cements were tested for retentive qualities, using both lathe-cut and hand-prepared specimens. MATERIALS AND METHODS: A total of 104 freshly extracted tooth specimens were prepared. Seventy of them were lathe-cut and 30 specimens were hand-prepared to simulate clinical conditions. Five different cements were tested, which included a compomer, a composite, a zinc phosphate, and 2 glass-ionomer luting cements...
August 1, 2016: Journal of Contemporary Dental Practice
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