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Dentin bonding agent

J Li, B Chen, N Hong, S Wu, Y Li
OBJECTIVE: In an attempt to increase resin-dentin bonding quality, this study used baicalein as a preconditioner in an etch-and-rinse adhesive to evaluate its effect on matrix metalloproteinases (MMPs) and adhesive durability. METHODS: As a MMP inhibitor and potential collagen cross-linking agent, baicalein was used as a preconditioner in an etch-and-rinse adhesive system. The degree of conversion was evaluated by Fourier-transform infrared spectroscopy. EnzChek gelatinase/collagenase assay kits were then used to detect the MMP inhibitory effect of different concentrations of baicalein (0...
March 7, 2018: Operative Dentistry
Seyed Mostafa Mousavinasab, Mohammad Atai, Mehrdad Barekatain, Parisa Fattahi, Amir Fattahi, Vahid Rakhshan
Background: The aim of this study was to assess for the first time the effects of different amounts of ethanol solvent on the microtensile bond strength of composite bonded to dentin using a polyhedral oligomeric silsesquioxane (POSS)-incorporated adhesive. Materials and Methods: This experimental study was performed on 120 specimens divided into six groups (in accordance with the ISO TR11405 standard requiring at least 15 specimens per group). Occlusal dentin of thirty human molar teeth was exposed by removing its enamel...
January 2018: Dental Research Journal
Doglas Cecchin, Ana Paula Farina, Ana Karina Bedran-Russo
Aim: To evaluate the effects of sodium hypochlorite (NaOCl), chlorhexidine (CHX), and two naturally derived reducing agents on the bond strength of epoxy resin-based sealer to root dentin. Materials and Methods: A total of 60 single-rooted human teeth were prepared using ProTaper (Dentsply Tulsa Dental Specialties, Johnson City, TN, USA) and an irrigation protocol including 5% NaOCl or 2% CHX gel, and ethylenediaminetetraacetic acid (EDTA), for smear layer removal...
September 2017: Journal of Conservative Dentistry: JCD
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
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)...
January 11, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Vanessa Cavalli, Maicon Sebold, Mirela Sanae Shinohara, Patrícia Nóbrega Rodrigues Pereira, Marcelo Giannini
This study evaluated dentin bond strength (BS) and nanoleakage of non- and pre-etched dentin immediately (T0 ,), 7 days (T7 ), and 14 days (T14 ) after bleaching. Bovine incisors (150) were selected and half of them submitted to intrapulpal dentin etching (e). Non- and pre-etched dentin were subjected to the following (n = 15): no bleaching/control (C); 35% carbamide peroxide (CP); 35% hydrogen peroxide (35% HP); 25% hydrogen peroxide (25% HP); and sodium perborate (SP). Bleaching agents were applied to the pulp chamber four times within a 72-h interval...
January 18, 2018: Microscopy Research and Technique
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
Fereshteh Shafiei, Maryam Firouzmandi, Moona Zamanpour
Objectives: The hybrid layer at the interface of resin-modified glass ionomer cements and dentin is prone to degradation by endogenous matrix metalloproteinases. We aimed to investigate the effect of two types of collagen crosslinkers, carbodiimide and proanthocyanidin (PA), on immediate and medium-term bond strength of a resin-modified glass ionomer to dentin. Materials and Methods: Seventy-two molars were flattened on the occlusal surface to expose dentin. The specimens were divided into control, 1-ethyl-3-(3-dimethylaminopropy) carbodiimide hydrochloride (EDC), and PA groups (n = 24)...
October 2017: European Journal of Dentistry
Sonali Taneja, Manju Kumari, Shreya Bansal
Aim: To evaluate the bond strength of different adhesives after contamination with saliva and blood at various steps of application. Materials and Methods: Buccal surfaces of 180 human premolars were sliced to expose dentin. The specimens were randomly divided into six groups (n = 30), in which saliva and blood were used as contaminants in three groups each. The groups were further divided according to the generation (fifth - OptiBond Solo Plus Kerr, USA; seventh - OptiBond All-In-One Kerr, USA; eighth - Futurabond DC, Voco, Germany) of the adhesive used...
May 2017: Journal of Conservative Dentistry: JCD
M W Heft, M S Litaker, D T Kopycka-Kedzierawski, C Meyerowitz, S Chonowski, R L Yardic, V V Gordan, R Mungia, G H Gilbert
Dentinal hypersensitivity (DH) can have a significant impact on oral health and functioning, and it is a clinical symptom commonly managed by dentists during routine clinical practice. DH symptoms are typically elicited by otherwise innocuous, nonpainful stimuli applied to exposed dentin (e.g., tactile stimuli, warming or cooling temperatures or air puffs). Treatment approaches have sought to directly target the dentinal pulp tissues or close dentinal tubules via dental office care and treatment services (fluoride varnishes, glutaraldehydes, bonding agents, sealants, oxalates, or lasers) or home care services (toothpastes or dentifrices containing fluoride or potassium nitrate compounds)...
January 2018: JDR Clinical and Translational Research
Florian J. Wegehaupt, Géraldine Kummer, Thomas Attin
It was the aim of the current in vitro study to test the erosion-preventive potential of an experimental surface sealant (K-0184) and currently marketed self-etch adhesive systems under abrasive conditions. Ninety-six dentine specimens were randomly allocated to eight groups (n=12): (1) positive control (no treatment), (2) K-0184, (3) Shield Force Plus, (4) Xeno Select, (5) Scotchbond Universal, (6) Adhese Universal, (7) OptiBond All-In-One, and (8) Clearfil SE Bond. Before and after sealing, dentine specimens were measured profilometrically to determine the layer thickness of the protective agents...
September 17, 2017: Swiss Dental Journal
Renata Bacelar-Sá, Marcelo Giannini, Glaucia Maria Bovi Ambrosano, Ana Karina Bedran-Russo
This study evaluated the effect of dentin biomodification on the bond strength (BS) and sealing ability (SA) of HEMA-free and multi-mode adhesives after 24 h and 6 months of water storage. Four adhesives were tested: two multi-mode (Scotchbond Universal - SU, and Prime & Bond Elect - PB) and two HEMA-free (All-Bond 3 - AB, and G-Aenial - GA). Human third molars were selected and dentin was treated with two cross-linking agents (5% glutaraldehyde and 6.5% proanthocyanidin-rich grape seed extract - PACs) for 10 min or kept untreated (control group) (n=6)...
November 2017: Brazilian Dental Journal
A F M Cardenas, F S F Siqueira, M C Bandeca, S O Costa, M V S Lemos, V P Feitora, A Reis, A D Loguercio, J C Gomes
PURPOSE: To evaluate the immediate microshear resin-enamel bond strength (μSBS) and the immediate and 6-month microtensile bond strength (μTBS) and nanoleakage (NL) of the adhesive interface performed by different pHs of 40% meta-phosphoric acid (MPA) were compared with conventional 37% ortho-phosphoric acid (OPA) under different application times. Additionally, the enamel etching patterns were evaluated and the chemical/morphological changes induced by these differents groups were evaluated...
February 2018: Journal of the Mechanical Behavior of Biomedical Materials
F J T Burke, R J Crisp, A J Cowan, L Raybould, P Redfearn, P Sands, O Thompson, V Ravaghi
General dental practice is increasingly being recognised as the ideal situation for the conduct of clinical trials into the longevity of restorations. The aim of this study was to investigate the survival of 64 nanofilled resin composite (Filtek Supreme XTE) restorations placed principally in loadbearing cavities using a Universal dentine bonding agent (Scotchbond Universal), in five UK dental practices by members of the UK-based practice-based research group, the PREP Panel. A split mouth design was used, comprising patients who required two restorations, with one of the restorations receiving a total etch approach using phosphoric acid and the other being placed using a self-etch approach...
December 1, 2017: European Journal of Prosthodontics and Restorative Dentistry
Gabriela D Canali, Sergio A Ignacio, Rodrigo N Rached, Evelise M Souza
PURPOSE: To evaluate the effect of three resin-based materials in the treatment of dentin hypersensitivity (DH) up to a 6-month follow-up. METHODS: 30 participants (179 teeth) with DH were enrolled in this randomized, double-blind, controlled clinical study. The teeth were randomly allocated into one of three groups: CV (resin-modified glass ionomer varnish - Clinpro XT Varnish), CP (fluoride-containing self-etch adhesive - Clearfil SE Protect) and GB (glutaraldehyde-containing etch-and-rinse adhesive - Gluma 2 Bond)...
August 2017: American Journal of Dentistry
Eliseu A Münchow, Marco C Bottino
Purpose of review: To present an overview on the main agents (i.e., biomolecules and nanocompounds) and/or strategies currently available to amplify or stabilize resin-dentin bonding. Recent findings: According to studies retrieved for full text reading (2014-2017), there are currently six major strategies available to overcome resin-dentin bond degradation: (i) use of collagen crosslinking agents, which may form stable covalent bonds with collagen fibrils, thus strengthening the hybrid layer; (ii) use of antioxidants, which may allow further polymerization reactions over time; (iii) use of protease inhibitors, which may inhibit or inactivate metalloproteinases; (iv) modification of the bonding procedure, which may be performed by using the ethanol wet-bonding technique or by applying an additional adhesive (hydrophobic) coating, thereby strengthening the hybrid layer; (v) laser treatment of the substrate prior to bonding, which may cause specific topographic changes in the surface of dental substrates, increasing bonding efficacy; and (vi) reinforcement of the resin matrix with inorganic fillers and/or remineralizing agents, which may positively enhance physico-mechanical properties of the hybrid layer...
September 2017: Current Oral Health Reports
F J Trevor Burke, Anna Lawson, David J B Green, Louis Mackenzie
The ability to bond restorations to dentine successfully is central to minimally invasive restorative dentistry. While dentine-bonding agents have gone through a variety of ‘generations’, it is the purpose of this paper to describe the latest dentine-bonding agents, the Universal Bonding Agents. These materials may be considered ‘Universal’ insofar as they may be considered to be capable of being used for direct and indirect dentistry, as well as being suitable for use in whichever etching modality the clinician considers appropriate, namely self-etch, etch and rinse or selective enamel etch...
April 2017: Dental Update
Tamer M Hamdy
Background: The newly introduced self-adhering flowable resin-composites decrease the required time for application by incorporation of an acidic adhesive monomer, thus reducing the number of the steps, but its bonding is still uncertain. The aim of this study was to evaluate the interfacial microscopic examination and chemical analysis at the resin-dentin interface of a self-adhering flowable resin composite (Vertise-Flow) versus a total-etch (Te-Econom Plus) resin composite, using an etching agent (Eco-Etch gel) and  bonding agent (Single Bond Universal)...
2017: F1000Research
Kyoung-Hwa Jung, Eun-Mi Seon, An-Na Choi, Yong-Hoon Kwon, Sung-Ae Son, Jeong-Kil Park
This study examined the effects of different application times of sodium ascorbate (SA) on the bond strength of composite resin to bleached dentin. Specimens with an exposed dentin surface were divided into 3 groups according to the type of bleaching agent used: Group A, mixture of sodium perborate (SP) and distilled water (DW); Group B, mixture of SP and hydrogen peroxide (HP); control group, no bleaching. Each group was classified into 10 subgroups. Subgroups IB and DB underwent immediate bonding and delayed bonding, respectively...
2017: Scanning
Lai Suo, Zhongjie Li, Feng Luo, Junyu Chen, Lingling Jia, Tong Wang, Xibo Pei, Qianbing Wan
This study developed carbon nanotube coatings for the dentin surface and investigated the bonding strength and the in vitro antibacterial properties of carbon nanotube-coated dentin. Single-walled carbon nanotubes and multi-walled carbon nanotubes were first modified and then characterized using Fourier-transform infrared spectroscopy, scanning electron microscope, and transmission electron microscopy. Second, dentin samples were coated using either single-walled carbon nanotubes or multi-walled carbon nanotubes and observed under a scanning electron microscope...
November 3, 2017: Dental Materials Journal
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