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https://www.readbyqxmd.com/read/28545657/durability-of-a-low-shrinkage-tegdma-hema-free-resin-composite-system-in-class-ii-restorations-a-6-year-follow-up
#1
Jan W V van Dijken, Ulla Pallesen
OBJECTIVE: The objective of this randomized controlled prospective trial was to evaluate the durability of a low shrinkage and TEGDMA/HEMA-free resin composite system in posterior restorations in a 6-year follow up. METHODS: 139 Class II restorations were placed in 67 patients with a mean age of 53 years (range 29-82). Each participant received at random two, as similar as possible, Class II restorations. In the first cavity of each pair the TEGDMA/HEMA-free resin composite system was placed with its 3-step etch-and-rinse adhesive (cmf-els)...
May 22, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28535395/a-zinc-chloride-doped-adhesive-facilitates-sealing-at-the-dentin-interface-a-confocal-laser-microscopy-study
#2
Manuel Toledano, Raquel Osorio, Estrella Osorio, Inmaculada Cabello, Manuel Toledano-Osorio, Fátima S Aguilera
The aim of this study was to ascertain the effect of Zn-doping of dental adhesives and mechanical load cycling on the micromorphology of the resin-dentin interdiffusion zone (of sound and caries affected dentin). The investigation considered two different Zn-doped adhesive approaches and evaluated the interface using a doubled dye fluorescent technique and a calcium chelator fluorophore under a confocal laser scanning microscopy. Sound and carious dentin-resin interfaces of unloaded specimens were deficiently resin-hybridized, in general...
May 19, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28499631/extrafibrillar-collagen-demineralization-based-chelate-and-rinse-technique-bridges-the-gap-between-wet-and-dry-dentin-bonding
#3
Sui Mai, Chin-Chuan Wei, Li-Sha Gu, Fu-Cong Tian, Dwayne D Arola, Ji-Hua Chen, Yang Jiao, David H Pashley, Li-Na Niu, Franklin R Tay
Limitations associated with wet-bonding led to the recent development of a selective demineralization strategy in which dentin was etched with a reduced concentration of phosphoric acid to create exclusive extrafibrillar demineralization of the collagen matrix. However, the use of acidic conditioners removes calcium via diffusion of very small hydronium ions into the intrafibrillar collagen water compartments. This defeats the purpose of limiting the conditioner to the extrafibrillar space to create a collagen matrix containing only intrafibrillar minerals to prevent collapse of the collagen matrix...
May 9, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28499097/substantivity-of-carbodiimide-inhibition-on-dentinal-enzyme-activity-over-time
#4
A Mazzoni, V Angeloni, N Sartori, S Duarte, T Maravic, L Tjäderhane, D H Pashley, F R Tay, L Breschi
The use of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide HCl (EDC) has recently been investigated for its effectiveness in the prevention of collagen degradation over time and the improvement of resin-dentin bond durability. The objective of the present study was to evaluate the effects of a 0.3 M EDC-containing conditioner on endogenous enzymatic activities within the hybrid layer (HL) created by a self-etch or an etch-and-rinse adhesive after 1 y. The activity within the HL was examined using in situ zymography and confocal laser scanning microscopy after 24 h or 1-y storage in artificial saliva...
May 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28495559/influence-of-adhesive-strategy-on-clinical-parameters-in-cervical-restorations-a-systematic-review-and-meta-analysis
#5
Marcos Schroeder, Ivo Carlos Correa, José Bauer, Alessandro Dourado Loguercio, Alessandra Reis
OBJECTIVES: We aimed to answer the following PICO question: "Is the risk of postoperative sensitivity (POS), retention rates and marginal discoloration of composite restorations [CR] bonded with self-etch (SE) in non-carious cervical lesions (NCCLs) of adults equals to etch-and-rinse (ER) adhesives?". METHODS: A comprehensive search was performed in May 2016 in the MEDLINE, Scopus, Web of Science, LILACS, BBO and Cochrane Library and SIGLE, abstracts of IADR, unpublished and ongoing trials registries, dissertations and theses without restrictions...
May 8, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28482489/the-effect-of-bonding-system-application-on-surface-characteristics-of-bovine-dentin-and-enamel
#6
Zuzanna Okulus, Tomasz Buchwald, Beata Czarnecka, Adam Voelkel
The main objective of this study was to examine the surface changes of bovine teeth hard tissues (dentin and enamel) after surface preparation with the use of commercial 3-component etch-and-rinse bonding system. Surface composition changes, morphology, BET specific surface area and surface energy parameters were examined after etching, application of primer and adhesive. Characteristic of tissues composition was carried out with the use of Raman spectroscopy. Morphological changes were followed by scanning electron microscopy, while specific surface area values were measured by the means of gas porosimetry...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28467258/effect-of-endocrown-pulp-chamber-extension-depth-on-molar-fracture-resistance
#7
A Hayes, N Duvall, M Wajdowicz, H Roberts
PURPOSE: The purpose of this study was to evaluate the effect of endocrown pulp chamber extension on mandibular molar fracture resistance. METHODS AND MATERIALS: A total of 36 recently extracted mandibular third molars of approximate equal size were sectioned at the facial lingual height of contour followed by endodontic access into the pulp chamber. The specimens were then randomly divided into three groups (n=12) and pulpal and root canal contents removed. Pulp chamber floors were established at 2, 3, and 4 mm from the occlusal table using a three-step etch-and-rinse adhesive and a flowable resin composite...
May 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28465067/unbound-monomers-do-diffuse-through-the-dentin-barrier
#8
Kods Mahdhaoui, Benjamin Fournier, Mathieu A Derbanne
OBJECTIVES: Assessing the role of dentinal fluid proteins in trans-dentinal diffusion of free monomers in vitro. METHODS: An artificial pulp chamber (APC) topped human dentin disks was used. A simplified two-step etch-and-rinse adhesive was formulated with 2-hydroethyl-methacrylate (HEMA), Bisphenol-A-diglycidyl-methacrylate (BisGMA), using Camphorquinone/tertiary amine as initiators. Two extraction media were used: buffered saline (Control), buffered saline with 1% bovine serum albumin (BSA)...
April 29, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28450671/effect-of-cavity-disinfectants-on-antibacterial-activity-and-microtensile-bond-strength-in-class-i-cavity
#9
Bo-Ram Kim, Man-Hwan Oh, Dong-Hoon Shin
This study was performed to compare the antibacterial activities of three cavity disinfectants [chlorhexidine (CHX), NaOCl, urushiol] and to evaluate their effect on the microtensile bond strength of Scotchbond Universal Adhesive (3M-ESPE, St. Paul, MN, USA) in class I cavities. In both experiments, class I cavities were prepared in dentin. After inoculation with Streptococcus mutans, the cavities of control group were rinsed and those of CHX, NaOCl and urushiol groups were treated with each disinfectant. Standardized amounts of dentin chips were collected and number of S...
April 26, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28438559/the-role-of-copper-nanoparticles-in-an-etch-and-rinse-adhesive-on-antimicrobial-activity-mechanical-properties-and-the-durability-of-resin-dentine-interfaces
#10
Mario F Gutiérrez, Pamela Malaquias, Viviane Hass, Thalita P Matos, Lucas Lourenço, Alessandra Reis, Alessandro D Loguercio, Paulo Vitor Farago
OBJECTIVES: To evaluate the effect of addition of copper nanoparticles at different concentrations into an etch-and-rinse adhesive (ER) on antimicrobial activity, Knoop microhardness (KHN), in vitro and in situ degree of conversion (DC), as well as the immediate (IM) and 2-year (2Y) resin-dentine bond strength (μTBS) and nanoleakage (NL). METHODS: Seven experimental ER adhesives were formulated according to the amount of copper nanoparticles incorporated into the adhesives (0 [control], 0...
April 21, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28422602/does-bonding-approach-influence-the-bond-strength-of-universal-adhesive-to-dentin-of-primary-teeth
#11
Tathiane Larissa Lenzi, Fabio Zovico Maxnuck Soares, Rachel de Oliveira Rocha
OBJECTIVE: To evaluate the effect of bonding strategy on microtensile bond strength (μTBS) of a new universal adhesive system to primary tooth dentin. STUDY DESIGN: Flat dentin surfaces from 25 primary molars were assigned to 5 groups according to the adhesive and bonding approach: Adper Single Bond 2 (two-step etch-and-rinse adhesive) and Clearfil SE Bond (two-step self-etch system), as controls; Scotchbond Universal Adhesive-self-etch, dry or wet-bonding etch-and-rinse strategies...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28384981/fracture-resistance-of-endodontically-treated-roots-restored-with-fiber-posts-using-different-resin-cements-an-in-vitro-study
#12
Swetha Gopal, Sujatha Irodi, Deepak Mehta, Shankar Subramanya, Vinay Kumar Govindaraju
INTRODUCTION: The influence of the remaining coronal tooth structure along with intra-radicular esthetic posts increases fracture resistance of fractured teeth especially in the anterior region. The advent of resin based luting cements improves the adhesion of fiber posts. AIM: To evaluate the fracture resistance of endodontically treated roots restored with fiber posts using different resin cements - Calibra (etch and rinse), PermaFlo® DC (self-etch primer) and SmartCem2 (self-adhesive)...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28372269/the-effect-of-double-coating-and-times-on-the-immediate-and-6-month-dentin-bonding-of-universal-adhesives
#13
Diial Pashaev, Mustafa Demirci, Neslihan Tekçe, Safa Tuncer, Canan Baydemir
OBJECTIVE: The purpose of this study was to evaluate the effect of double-application coats and times on microtensile bond strength (μTBS) and adhesive-dentin interfaces created by dentin adhesive systems after 6 months of storage in water. MATERIALS AND METHODS: Two-hundred sixteen extracted non-carious human third molars were selected for the study. Single-Bond Universal (SU) and All-Bond Universal (AU), Adper Easy One (Eo) Self-Etch adhesive and Adper Single-Bond 2 (Sb) etch-and-rinse adhesive were applied to a flat dentin surface using three methods (1): dentin adhesives were applied as recommended by the manufacturers; (2): two consecutive coats of dentin adhesives were applied before photo-polymerization; and (3): a single coat of adhesive was applied but with twice the manufacturers recommended application time...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28343677/influence-of-adhesive-cementation-systems-on-the-bond-strength-of-relined-fiber-posts-to-root-dentin
#14
Raquel Viana Rodrigues, Camila Sobral Sampaio, Rafael Rocha Pacheco, Fernanda Miori Pascon, Regina Maria Puppin-Rontani, Marcelo Giannini
STATEMENT OF PROBLEM: Glass fiber post cementation procedures have undergone significant development. Relining the post with composite resin is a technique that aims to reduce resin cement thickness and consequently problems inherent to polymerization. Evidence is sparse regarding the efficacy of bonding procedures at increasing depths (from cervical to apical) using different adhesive cementation techniques. PURPOSE: The purpose of this in vitro study was to evaluate the push-out bond strength (PBS) of composite resin relined glass fiber posts cemented to bovine root dentin using different adhesive cementation protocols...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28327301/dentin-bond-optimization-using-the-dimethyl-sulfoxide-wet-bonding-strategy-a-2-year-in-vitro-study
#15
Thiago Henrique Scarabello Stape, Leo Tjäderhane, Arzu Tezvergil-Mutluay, Cristiane Rumi Fujiwara Yanikian, Anna Luiza Szesz, Alessandro Dourado Loguercio, Luís Roberto Marcondes Martins
OBJECTIVE: This study evaluated a new approach, named dimethyl sulfoxide (DMSO)-wet bonding, to produce more desirable long-term prospects for the ultrafine interactions between synthetic polymeric biomaterials and the inherently hydrated dentin substrate. METHODS: Sound third molars were randomly restored with/without DMSO pretreatment using a total-etch (Scocthbond Multipurpose: SBMP) and a self-etch (Clearfil SE Bond: CF) adhesive systems. Restored teeth (n=10)/group were sectioned into sticks and submitted to different analyses: micro-Raman determined the degree of conversion inside the hybrid layer (DC); resin-dentin microtensile bond strength and fracture pattern analysis at 24h, 1year and 2 years of aging; and nanoleakage evaluation at 24h and 2 years...
December 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28315376/effect-of-a-novel-quaternary-ammonium-silane-cavity-disinfectant-on-durability-of-resin-dentine-bond
#16
D Daood, C K Y Yiu, M F Burrow, L-N Niu, F R Tay
OBJECTIVE: The present study examined the effect of a quaternary ammonium silane (QAS) cavity disinfectant on the viability of human dental pulp cells, dentine bond durability and nanoleakage of simplified etch-and-rinse adhesives. METHODS: Etched dentine surface of third molars were randomly divided into two adhesive groups, Adper™ Single Bond 2 and Prime & Bond(®) NT™. For each adhesive, the teeth were randomly assigned to five cavity disinfectant groups (N=6): Group 1: deionised water (control); Group 2: 2% chlorhexidine (CHX); Group 3: 2% QAS; Group 4: 5% QAS and Group 5: 10% QAS...
May 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28274042/evaluation-of-the-shear-bond-strength-of-composite-resin-to-wet-and-dry-enamel-using-dentin-bonding-agents-containing-various-solvents
#17
Carounanidy Usha, Sathyanarayanan Ramarao, Bindu Meera John, Praveen Rajesh, S Swatha
INTRODUCTION: Bonding of composite resin to dentin mandates a wet substrate whereas, enamel should be dry. This may not be easily achievable in intracoronal preparations where enamel and dentin are closely placed to each other. Therefore, Dentin Bonding Agents (DBA) are recommended for enamel and dentinal bonding, where enamel is also left moist. A research question was raised if the "enamel-only" preparations will also benefit from wet enamel bonding and contemporary DBA. AIM: The aim of this study was to compare the shear bond strengths of composite resin, bonded to dry and wet enamel using fifth generation DBA (etch and rinse system) containing various solvents such as ethanol/water, acetone and ethanol...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28259318/the-use-of-adhesive-systems-under-fissure-sealants-improves-their-retention-with-etch-and-rinse-performing-better-than-self-etching-adhesive-systems
#18
Stefania Martignon, Olga Lucia Zarta
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Adhesive systems under fissure sealants: yes or no?: A systematic review and meta-analysis. Bagherian A, Shirazi AS, Sadeghi R. J Am Dent Assoc 2016;147(6):446-56. SOURCE OF FUNDING: The authors reported that no external funding sources directly supported this study TYPE OF STUDY/DESIGN: Systematic review with meta-analysis of data.
March 2017: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/28257259/microleakage-and-shear-bond-strength-of-composite-restorations-under-cycling-conditions
#19
R F Zanatta, M Lungova, A B Borges, Crg Torres, H-G Sydow, A Wiegand
OBJECTIVES: The aim of this study was to evaluate microleakage and shear bond strength of composite restorations under different cycling conditions. METHODS AND MATERIALS: Class V cavities were prepared in the buccal and lingual surfaces of 30 human molars (n=60). A further 60 molars were used to prepare flat enamel and dentin specimens (n=60 each). Cavities and specimens were divided into six groups and pretreated with an adhesive (self-etch/Clearfil SE Bond or etch-and-rinse/Optibond FL)...
March 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28257217/two-year-clinical-evaluation-of-a-nanofilled-etch-and-rinse-and-a-self-etch-adhesive-system-containing-mdpb-and-fluoride-in-non-carious-cervical-lesions
#20
Fernanda Garcia de Oliveira, Lucas Silveira Machado, Daniel Sundfeld-Neto, Marcelo Giannini, André Luiz Fraga Briso, Paulo Henrique Dos Santos, Maria Lúcia Marçal Mazza Sundefeld, Renato Herman Sundfeld
OBJECTIVES: The aim of this clinical study was to evaluate the performance of restorations for non-carious cervical lesions performed with a two-step etch-and-rinse or with a two-step self-etch adhesive. MATERIALS AND METHODS: The teeth to be restored (15 patients, N = 90 restorations) were randomly assigned into 3 groups (n = 30), according to the adhesive system: group 1 (G1): Peak LC Bond; group 2 (G2): Clearfil Protect Bond; and group 3 (G3): prior selective acid etching of the enamel margins before bonding with Clearfil Protect Bond...
March 2017: Compendium of Continuing Education in Dentistry
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