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chlorhexidin bonding strength long term

Alessandro D Loguercio, Viviane Hass, Mario Felipe Gutierrez, Issis Virginia Luque-Martinez, Anna Szezs, Rodrigo Stanislawczuk, Matheus Coelho Bandeca, Alessandra Reis
PURPOSE: To evaluate the effect of an acid containing 2% chlorhexidine (Ac/CHX) or a 2% CHX aqueous solution (Aq/CHX) on the immediate and 5-year bonding properties of resin/dentin interfaces produced by two adhesives. The presence of CHX in these interfaces was also evaluated under micro-Raman spectroscopy. MATERIALS AND METHODS: Forty-two molars were ground to expose a flat dentin surface. In the control group, the surfaces were etched with conventional phosphoric acid, and Prime&Bond NT (PB) and Adper Single Bond 2 (SB) were applied...
2016: Journal of Adhesive Dentistry
Fabiana Mantovani Gomes França, Rafaela Crystyan Vaneli, Carolina de Melo Conti, Roberta Tarkany Basting, Fláavia Lucisano Botelho do Amaral, Cecília Pedroso Turssi
AIM: The aim of this study was to evaluate the effect of chlorhexidine and ethanol application on the push-out bond strength and bond durability of fiber posts cemented with an etch-and-rinse adhesive system/resin cement to intraradicular dentin. MATERIALS AND METHODS: Fifty-four bovine roots were shaped for the cementation of a fiberglass post and received the application of 37% phosphoric acid. They were then randomly divided into three groups, according to the type of dentin treatment (n = 18) performed: no treatment (control group), 100% ethanol, or 2% chlorhexidine...
July 2015: Journal of Contemporary Dental Practice
Luciana Fávaro Francisconi-dos-Rios, Leslie Caroll Casas-Apayco, Marcela Pagani Calabria, Paulo Afonso Silveria Francisconi, Ana Flávia Sanches Borges, Linda Wang
PURPOSE: To assess the long-term effect of a 2% aqueous chlorhexidine (CHX) solution on bond strength to artificially eroded dentin compared to sound dentin. MATERIALS AND METHODS: Flat mid-coronal dentin surfaces of extracted third molars (n = 28) were subjected only to grinding with a 600-grit SiC paper for 1 min (sound dentin S, n = 14) or additionally to erosive pH cycling with a cola-based soft-drink (eroded dentin E, n = 14). After acid etching, rinsing, and air drying, S and E were rehydrated with 1...
April 2015: Journal of Adhesive Dentistry
A F Montagner, R Sarkis-Onofre, T Pereira-Cenci, M S Cenci
The aim of this study was to systematically review the literature for in vitro and ex vivo studies that evaluated the effect of matrix metalloproteinase (MMP) inhibitors during the adhesive procedure on the immediate and long-term resin-dentin bond strength. The search was conducted in 6 databases with no publication year or language limits, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. From 1,336 potentially eligible studies, 48 were selected for full-text analysis, and 30 were included for review, with 17 considered in the meta-analysis...
August 2014: Journal of Dental Research
M Toman, S Toksavul, E Tamaç, M Sarikanat, I Karagözoğlu
Aim of this study was to assess the influence of chlorhexidine digluconate (CHX) application on bond strength of glass fibre reinforced composite (FRC) posts to root dentine using adhesive luting systems. Forty extracted human mandibular premolars were endodontically treated and root canals were prepared. Teeth were divided into 2 groups according to luting system as SuperBond C&B (etch-and-rinse/chemical cure) and FuturaBond DC (self-etch/ dual cure). Each group was further divided in 2 subgroups (n=10) according to whether CHX was applied or not...
March 2014: European Journal of Prosthodontics and Restorative Dentistry
Fereshteh Shafiei, Armaghan Alikhani, Ali Asghar Alavi
BACKGROUND: Considering the possibility of remaining bacteria in the cavity or invading via microgaps, the use of antibacterial agents in adhesive restoration may be beneficial. This study evaluated the effect of chlorhexidine on immediate and long-term shear bond strength of adhesives with and without antibacterial agent to dentin. MATERIALS AND METHODS: In this in vitro study, the occlusal surfaces of 80 intact human premolars were removed to expose the flat midcoronal dentin...
November 2013: Dental Research Journal
Rodrigo Stanislawczuk, Fabiane Pereira, Miguel Angel Muñoz, Issis Luque, Paulo Vitor Farago, Alessandra Reis, Alessandro D Loguercio
OBJECTIVES: This study evaluated the effect of addition of diacetate CHX in different concentrations into two simplified etch-and-rinse (ER) adhesive systems (XP Bond [XP] and Ambar {AM}) on the ultimate tensile strength (UTS), degree of conversion (DC), 60-day cumulative water sorption (WS), solubility (SO) and CHX release (CR) as well as the immediate (IM) and 1-year (1Y) resin-dentine bond strength (μTBS) and nanoleakage (NL). METHODS: Ten experimental adhesive systems were formulated according to the addition of CHX diacetate (0 [control], 0...
January 2014: Journal of Dentistry
Daniel Galafassi, Camila Scatena, Vivian Colucci, Antonio Luiz Rodrigues-Júnior, Mônica Campos Serra, Silmara Aparecida Milori Corona
This study evaluates the bond strength of dentin prepared with Er:YAG laser or bur, after rewetting with chlorhexidine on long-term artificial saliva storage and thermocycling. One hundred and twenty human third molars were sectioned in order to expose the dentin surface (n = 10). The specimens were randomly divided in 12 groups according to treatment and aging: Er:YAG laser rewetting with deionized water (LW) and 24 h storage in artificial saliva (WC); LW and 6 months of artificial saliva storage + 12...
January 2014: Microscopy Research and Technique
Radhika Verma, Udai Pratap Singh, Shashi Prabha Tyagi, Rajni Nagpal, Naveen Manuja
OBJECTIVE: To evaluate the effect of 2% chlorhexidine (CHX) and 30% proanthocyanidin (PA) application on the immediate and long-term bond strength of simplified etch-and-rinse adhesives to dentin. MATERIALS AND METHODS: One hundred twenty extracted human molar teeth were ground to expose the flat dentin surface. The teeth were equally divided into six groups according to the adhesives used, either Tetric N Bond or Solobond M and pretreatments given either none, CHX, or PA...
July 2013: Journal of Conservative Dentistry: JCD
Leo Tjäderhane, Fabio D Nascimento, Lorenzo Breschi, Annalisa Mazzoni, Ivarne L S Tersariol, Saulo Geraldeli, Arzu Tezvergil-Mutluay, Marcela Carrilho, Ricardo M Carvalho, Franklin R Tay, David H Pashley
OBJECTIVE: Endogenous dentin collagenolytic enzymes, matrix metalloproteinases (MMPs) and cysteine cathepsins, are responsible for the time-dependent hydrolysis of collagen matrix of hybrid layers. As collagen matrix integrity is essential for the preservation of long-term dentin bond strength, inhibition of endogenous dentin proteases is necessary for durable resin-bonded restorations. METHODS: Several tentative approaches to prevent enzyme function have been proposed...
October 2013: Dental Materials: Official Publication of the Academy of Dental Materials
E Dursun, S Le Goff, D N Ruse, J P Attal
PURPOSE: The aim of this study was to investigate the effect of chlorhexidine digluconate (CHX) application on the shear bond strength (SBS) of a resin-modified glass ionomer cement (RMGIC) to polyalkenoic acid-preconditioned dentin after 24 hours, six months, and 12 months of water storage at 37°C. MATERIALS AND METHODS: Cylindrical molds, placed on flat, polyalkenoic acid (Cavity Conditioner® [GC]) preconditioned dentin surfaces of 90 human teeth embedded in resin, were filled with Fuji II LC® (GC), a RMGIC, with (n=45) or without (n=45) the prior application of a 0...
May 2013: Operative Dentistry
Ritva M Lindblad, Lippo V J Lassila, Veijo Salo, Pekka K Vallittu, Leo Tjäderhane
OBJECTIVES: Chlorhexidine preserves the long-term bonding between composite restorations and coronal dentine. Our aim was to evaluate the long-term effect of chlorhexidine on attachment of fibre-reinforced composite (FRC) root canal posts to root canals. We hypothesized that chlorhexidine would not negatively affect the bond strength in aged specimens. METHODS: Root canals of 40 human extracted third molars were prepared for post cementation with each post systems' own burs...
September 2012: Journal of Dentistry
Nesreen Salim, Julian D Satterthwaite, Riina Rautemaa, Nick Silikas
OBJECTIVES: To investigate the effect of impregnation of poly(ethyl methacrylate) and tetrahydro-furfuryl methacrylate (PEM/THFM) polymeric delivery system with chlorhexidine or fluconazole on its shear bond strength (SBS) and water sorption. METHODS: For SBS testing, 16 PEM/THFM discs impregnated with chlorhexidine (CHX), pure fluconazole (FLUp) or fluconazole from capsules (FLUc) and 16 drug-free control discs were prepared and bonded to heat-cured acrylic blocks...
August 2012: Journal of Dentistry
Vicente Castelo Branco Leitune, Fernando Freitas Portella, Priscila Veit Bohn, Fabrício Mezzomo Collares, Susana Maria Werner Samuel
The aim of this study was to evaluate the influence of applying 2% chlorhexidine for 30 seconds after phosphoric acid conditioning of dentin on the immediate and long-term bond strengths in deciduous teeth. The occlusal enamel was removed from 40 human sound deciduous molars, which were exfoliated by natural means, and the dentin was conditioned with 37% phosphoric acid for 15 seconds and washed with running water. The specimens were divided into two groups of 20 teeth. The test group received an application of 2% chlorhexidine for 30 seconds prior to a three-step etch-and-rinse adhesive system, whereas the control group received only the adhesive system...
September 2011: Brazilian Oral Research
F T Sadek, R R Braga, A Muench, Y Liu, D H Pashley, F R Tay
The long-term effectiveness of chlorhexidine as a matrix metalloproteinase (MMP) inhibitor may be compromised when water is incompletely removed during dentin bonding. This study challenged this anti-bond degradation strategy by testing the null hypothesis that wet-bonding with water or ethanol has no effect on the effectiveness of chlorhexidine in preventing hybrid layer degradation over an 18-month period. Acid-etched dentin was bonded under pulpal pressure simulation with Scotchbond MP and Single Bond 2, with water wet-bonding or with a hydrophobic adhesive with ethanol wet-bonding, with or without pre-treatment with chlorhexidine diacetate (CHD)...
December 2010: Journal of Dental Research
Rodrigo Stanislawczuk, Alessandra Reis, Alessandro D Loguercio
OBJECTIVE: This study evaluated the effect of 2% chlorhexidine-containing acid (Ac/CHX) and 2% chlorhexidine digluconate solution (CHX) on immediate (IM) and 2-year (2Y) resin-dentin bond strength (BS) and silver nitrate uptake (SNU) for two simplified etch-and-rinse adhesives. METHODS: Forty-two caries-free extracted molars had a flat dentin surface exposed. In the control groups (groups 1), the surfaces were acid etched with conventional phosphoric acid and the adhesives Prime&Bond NT (PB) or Adper Single Bond 2 (SB) was applied after rinsing, drying and rewetting with water...
January 2011: Journal of Dentistry
Vicente Castelo Branco Leitune, Fabrício Mezzomo Collares, Susana Maria Werner Samuel
OBJECTIVE: The objective of this study was to evaluate the influence of chlorhexidine application after dentin phosphoric acid etching at immediate and long-term bond strength of a fiber post cemented to root dentin. STUDY DESIGN: Seventy-two single-rooted, human upper teeth were selected. After phosphoric acid etching, each group received a different dentin treatment: no pretreatment or chlorhexidine 0.2% or 2.0%. Three-step etch-and-rinse adhesive and dual-cured resin cement was used to cementation procedure...
November 2010: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Fereshteh Shafiei, Mahtab Memarpour
PURPOSE: The purpose of this study was to investigate the effect of chlorhexidine [CH] on dentin bond strength of three resin cements after 1 year of water storage. METHODS: A flat middle dentin surface was prepared on 120 extracted premolars. The teeth were randomly divided into 6 groups of 20 specimens each according to the resin cement used: Panavia F2.0, Variolink II, and RelyX Unicem, with or without CH application. After cementation of an indirect composite rod [Z250], one subgroup [n=10] was tested after 24h in water at 37 ° C and the other subgroup [n=10] was tested after 1 year storage in water plus thermocycling...
October 2010: Journal of Prosthodontic Research
Lorenzo Breschi, Federica Cammelli, Erika Visintini, Annalisa Mazzoni, Francesca Vita, Marcela Carrilho, Milena Cadenaro, Stephen Foulger, Giovanni Mazzoti, Franklin R Tay, Roberto Di Lenarda, David Pashley
PURPOSE: To investigate the effect of 0.2% and 2% chlorhexidine (CHX) used as a therapeutic primer on the long-term bond strengths of two etch-and-rinse adhesive systems. MATERIALS AND METHODS: Adper Scotchbond 1XT (SB1) and XP-Bond (XPB) were evaluated. Etched dentin substrates were assigned to 6 treatment groups: (1) 0.2% CHX + SB1; (2) 2% CHX + SB1; (3) SB1 (control); (4) 0.2% CHX + XPB; (5) 2% CHX + XPB; (6) XPB (control). Composite buildups were made and beams prepared for microtensile bond strength testing...
June 2009: Journal of Adhesive Dentistry
Paula C P Komori, David H Pashley, Leo Tjäderhane, Lorenzo Breschi, Annalisa Mazzoni, Mario Fernando de Goes, Linda Wang, Marcela R Carrilho
This study evaluated the effect of 2% chlorhexidine digluconate (CHX) used as a therapeutic primer on the long-term bond strengths of two etch-and-rinse adhesives to normal (ND) and caries-affected (CAD) dentin. Forty extracted human molars with coronal carious lesions, surrounded by normal dentin, were selected for this study. The flat surfaces of two types of dentin (ND and CAD) were prepared with a water-cooled high-speed diamond disc, then acid-etched, rinsed and air-dried. In the control groups, the dentin was re-hydrated with distilled water, blot-dried and bonded with a three-step (Scotchbond Multi-Purpose-MP) or two-step (Single Bond 2-SB) etch-and-rinse adhesive...
March 2009: Operative Dentistry
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