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chlorhexidin bonding strength

B Dikmen, B Tarim
Objectives: The aim of this study was to determine the influence of irrigants on bond strength of adhesive systems. Materials and Methods: Superficial dentin surfaces of 60 extracted molars were divided into 15 groups, according to irrigants and adhesives. In the control groups, surfaces were irrigated with distilled water. In experimental groups, sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA) + NaOCl, chlorhexidine (CHX), and NaOCl + sodium ascorbate were used as irrigants...
March 2018: Nigerian Journal of Clinical Practice
P Malaquias, M F Gutierrez, V Hass, R Stanislawczuk, M C Bandeca, Cag Arrais, P V Farago, A Reis, A D Loguercio
OBJECTIVES: To evaluate the effects of addition of diacetate chlorhexidine (CHX) at different concentrations into two etch-and-rinse adhesive systems on CHX release, as well as the immediate (IM) and two-year (2-Y) resin-dentin microtensile bond strength (μTBS) and nanoleakage (NL). METHODS: CHX was added to XP Bond (XP) and Ambar (AM) at concentrations of 0.0 wt% (control); 0.01 wt%; 0.05 wt%; and 0.1 to 0.2 wt%. To assess the cumulative CHX release, adhesive disks were made in a metallic matrix and after light-curing were stored in water...
March 2018: Operative Dentistry
M Durski, M Metz, G Crim, S Hass, R Mazur, S Vieira
The purpose of this study was to evaluate the push-out bond strength of two different adhesive cements (total etch and self-adhesive) for glass fiber post (GFP) cementation in simulated, long-term service (thermocycling) when the root canal is treated with chlorhexidine before cementation. One hundred twenty premolar specimens with a single root canal were selected, endodontically treated, and shaped for GFP cementation (n=120). The specimens were randomly placed into one of 12 groups (10 specimens each) according to cement (T = total-etch RelyX ARC or S = self-adhesive RelyX Unicem), treatment with chlorhexidine (N or Y: without or with), and number of thermal cycles (00, 20, or 40: 0, or 20,000 or 40,000 cycles): 1...
March 2018: Operative Dentistry
C M de Almeida, W L O da Rosa, C T W Meereis, S M de Almeida, J S Ribeiro, A F da Silva, Rafael Guerra Lund
AIMS: The purpose of this study was to evaluate the efficacy of orthodontic bonding systems containing different antimicrobial agents, as well as the influence of antimicrobial agent incorporation in the bonding properties of these materials. METHODS: Eight databases were searched: PubMed (Medline), Web of Science, Scopus, Lilacs, Ibecs, BBO, Scielo and Google Scholar. Any study that evaluated antimicrobial activity in experimental or commercial orthodontic bonding systems was included...
March 5, 2018: Journal of Orthodontics
Qianmin Ou, Ya Hu, Siqi Yao, Yan Wang, Xuefeng Lin
OBJECTIVES: This study investigated the effect of matrix metalloproteinase 8 (MMP-8) on resin-dentin bonds, assessed the mechanical properties of the interfaces over time, and discussed the potential application of MMP-8 inhibitor I (MMP8-I) as a specific MMP-8 inhibitor to be incorporated into dental adhesives. METHODS: The activation and inhibition of MMP-8 was detected by colorimetric assay. After 1 day, 6 months and 1 year of storage of Control, MMP8-I, and chlorhexidine (CHX) groups, the microtensile bond strengths (μTBS) were used to evaluate the bond strength and failure mode distributions, and nanoleakage analysis was used to evaluate the minor scattered silver particles...
February 12, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
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
Isabel C C M Porto, Ticiano G Nascimento, José M S Oliveira, Pedro H Freitas, Asmaa Haimeur, Rodrigo França
This study evaluated the effect of dentin pretreatment with the polyphenols quercetin and resveratrol on the resin-dentin microtensile bonding strength (μTBS) and collagen fibrils stability of the adhesive interface. Different concentrations (100, 250, 500, or 1,000 μg ml-1 ) of quercetin or resveratrol, or a mixture of quercetin and resveratrol (3:1, 1:1, 1:3; vol:vol), as well as distilled water or 2% chlorhexidine digluconate, were applied to etched dentin. Then, a two-step etch-and-rinse adhesive was applied followed by composite restoration...
January 30, 2018: European Journal of Oral Sciences
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
Vanita D Revankar, M S Prathap, K Harish Kumar Shetty, Azmin Shahul, K Sahana
Context: Biomineralization is a process which leads to the formation of an interfacial layer with tag-like structures at the cement-dentin interface. It is due to interaction of mineral trioxide aggregate (MTA) and Portland cement with dentin in phosphate-buffered solution (PBS). This study is aimed to evaluate the effect of influence of biomineralization process on push-out bond strength of ProRoot MTA (Dentsply Tulsa Dental, Tulsa, OK, USA), MTA Branco (Angelus Soluc¸o˜es Odontolo´gicas, Londrina, PR, Brazil) and calcium phosphate cement (BioGraft CPC)...
November 2017: Journal of Pharmacy & Bioallied Sciences
Fatemeh Mokhtari, Ehsan Anvar, Mostafa Mirshahpanah, Hamidreza Hemati, Alireza Danesh Kazemi
Introduction: The aim of this study was to evaluate the effect of root canal irrigants on the microtensile bond strength of 2-step self-etch adhesive to dentin. Methods and Materials: n this study 36 sound extracted human third molars were used. After grinding 3 mm of occlusal surface, teeth were randomly divided into 6 groups based on irrigation material naming normal saline, 5.25% sodium hypochlorite (NaOCl) and 2% chlorhexidine (CHX) and also irrigation time (5 or 30 min)...
2017: Iranian Endodontic Journal
Yasmin Sheikh Hasani, Mehrsa Paryab, Aida Saffarpour, Mohammad Javad Kharazifard, Mehdi Shahrabi
Statement of the Problem: There are some concerns regarding the effect of chlorhexidine (CHX) applied for cavity disinfection on the bond strength of adhesive restorations to dentin. Purpose: This study sought to assess the effect of CHX on the shear bond strength (SBS) of Equia resin-modified glass ionomer cement (RMGIC) to dentin in permanent teeth. Materials and Method: In this experimental study, the buccal surface of 84 freshly extracted human premolars was ground to expose the flat dentin...
December 2017: Journal of Dentistry
M C Giacomini, Pmc Scaffa, L P Chaves, Cmp Vidal, T N Machado, H M Honório, L Tjäderhane, L Wang
OBJECTIVES: The aim of this study was to evaluate the effect of proteolytic inhibitors on the bond strength of a universal adhesive system (etch-and-rinse mode) applied to artificial carious and eroded dentin. METHODS: Ninety molars were prepared and randomly divided into three groups according to the substrate: N, no challenges; ACD, artificial carious dentin simulation and ERO, artificial erosion simulation with orange juice. All groups were redivided into three subgroups according to the dentin pretreatment: W, water; CHX, 2% digluconate chlorhexidine; and E-64 (trans-epoxysuccinyl-L-leucylamido-[4-guanidino] butane), 5 μM E-64 inhibitor...
November 2017: Operative Dentistry
Nelamakanahalli K Suma, Kukkalli K Shashibhushan, V V Subba Reddy
Objective: Cavity preparation is a surgical procedure that attempts to remove all infected dentin.1 Bacteria left beneath the filling material is greatest threat to the pulp. To reduce the potential for residual caries development and sensitivity, an antibacterial solution with the ability to disinfect the prepared tooth surface would be of help.2 So this study was conducted to evaluate and compare the effect of dentin disinfection with 2% chlorhexidine gluconate (Consepsis) and 0.3% iodine (Ora5) on shear bond strength (SBS) of self-etch adhesives to dentin...
July 2017: International Journal of Clinical Pediatric Dentistry
Fereshteh Shafiei, Mahtab Memarpour, Narges Vafamand, Mahsa Mohammadi
BACKGROUND: Longevity of post-retained restoration is highly depended on bonding stability of fiber post (FP) to root dentin. This study evaluated the effect of different antibacterial/adhesive approaches on bonding durability of FPs luted into root canal with a self-etch cement. MATERIAL AND METHODS: Seventy-two human maxillary central incisor roots were divided into six groups after endodontic treatment, based on the antibacterial/adhesive treatments as follows: 1)ED primer II (ED, control); 2) Clearfil Protect Bond (PB); 3) 2% chlorhexidine (CH) pretreatment + ED primer II (CH+ED); 4) CH-incorporated into ED primer II (CH in ED); 5) CH pretreatment + Clearfil SE Bond (CH+SE); and 6)CH-incorporated into SE primer (CH in SE)...
September 2017: Journal of Clinical and Experimental Dentistry
Rani Samyukta Gajjela, R Kalyan Satish, Girija S Sajjan, K Madhu Varma, T Rambabu, B H Vijaya Lakshmi
AIM: The purpose of this study was to evaluate the influence of chlorhexidine (CHX), grape seed extract (GSE), riboflavin/chitosan modification on microtensile bond strength (μTBS) of composite resin to dentin after polymerase chain reaction (PCR) thermocycling. MATERIALS AND METHODS: Forty extracted human molars were used and a flat surface was then prepared by removing the occlusal one-third. The teeth were randomly assigned into four groups - Group I in which self-etch adhesive (Adper Easy One) was applied and Groups II, III, IV were pretreated with 2% CHX, 6...
March 2017: Journal of Conservative Dentistry: JCD
Anand Sekhar, Akansha Anil, Manuel S Thomas, Kishore Ginjupalli
BACKGROUND: Disinfection of dentin surface prior to any restorative therapy is important for the longevity of the treatment rendered. However, these dentin disinfection methods should itself not interfere with the adhesion of the restorative material. Therefore the aim of this study was to determine the effect of various dentin disinfection protocols on the shear bond strength (SBS) of resin modified glass ionomer cement (RMGIC). MATERIAL AND METHODS: The occlusal surface of 40 extracted premolars were trimmed to obtain a flat dentinal surface and was randomly divided into four groups...
July 2017: Journal of Clinical and Experimental Dentistry
Wen Zhou, Biao Ren, Xuedong Zhou, Hockin H K Xu, Michael D Weir, Mingyun Li, Mingye Feng, Jiyao Li, Xin Xu, Lei Cheng
This study was set to assess the possible benefits of novel cavity disinfectants with 5% dimethylaminododecyl methacrylate (DMADDM); and compare the effectiveness of saliva microbial-aging method with water-aging in measuring the changing of resin-dentin bond strength. Three cavity disinfectants were tested: 0.2% Chlorhexidine (CHX); 5% DMADDM; and 5% DMADDM + 0.2% CHX. Microtensile bond strength (μTBS) test was performed after microbial-aging with saliva microbial or water aging for one month. Hydroxyproline (HYP), the production of collagen degradation, was measured spectrophotometrically...
August 9, 2016: Materials
Pei Zheng, Hui Chen
We have evaluated and compare the effect of different exogenous MMP inhibitors on adhesive physical properties of dental adhesives, bond strength, micro permeability and MMP substrate activity. 180-grit Sic paper was used to obtain the superficial dentin surface from each and every tooth after the wet grinding procedure. Dentin was exposed to four different MMP inhibitors to evaluate the effect on resin adhesive dentin interface. The four groups used in study were: 2% chlorhexidine digluconate, 2% doxycycline solution, 5% Proanthocyanidin (PR), Control Group...
July 10, 2017: Scientific Reports
Ricardo Alves Dos Santos, Eliane Alves de Lima, Marcos Antônio Japiassu Resende Montes, Rodivan Braz
Objective: The aim of the present study was to compare the effect of pre-treating dentin with chlorhexidine, at concentrations of 0.2% and 2%, and remineralizing paste containing CPP-ACP (MI Paste - GC) on the bond strength of adhesive systems. Material and methods: In total, 80 slides of dentin were used. These slides were 2 mm thick and were obtained from bovine incisors. Standard cavities were created using diamond bur number 3131. In the control groups, a Scotchbond Universal Adhesive (SUA) self-etching adhesive system of 3M ESPE and a Clearfil SE Bond (CSE) adhesive system of Kuraray were applied, following the manufacturer's instructions...
December 2016: Acta Biomaterialia Odontologica Scandinavica
Alessandro D Loguercio, Pamela Malaquias, Fabiane Pereira Dos Santos, Viviane Hass, Rodrigo Stanislawczuk, Suellen Nogueira Linares Lima, Matheus Coelho Bandeca, Alessandra Reis
PURPOSE: To evaluate the effect of three phosphoric acids modified with chlorhexidine (CHX), benzalkonium chloride (BAC), or proanthocyanidins (PRO) and one conventional phosphoric acid (CON) on the immediate (24 h; IM) and 1-year composite-dentin microtensile bond strength (μTBS) and nanoleakage (NL), using an etch-and-rinse adhesive. MATERIALS AND METHODS: A flat dentin surface was exposed on 28 caries-free extracted molars, which were then randomly assigned to four groups (n = 7)...
June 8, 2017: Journal of Adhesive Dentistry
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