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https://www.readbyqxmd.com/read/28203014/-influence-of-surface-treatment-with-sodium-hypochlorite-solution-on-dentin-bond-strength
#1
Y Wang, Y H Liang
OBJECTIVE: To evaluate the influence of sodium hypochlorite (NaOCl) solution used during root canal therapy on dentin bond strength. METHODS: In the study, 15 freshly extracted human third molars with complete dental crowns, caries and filling-free were selected. The occlusal enamel was removed perpendicular to the long axis of the tooth to expose middle flat surfaces of sound dentin. The occlusal dentin surfaces were then polished using 600-grit silicon papers for 1 min and rinsed with deionized water for 1 min...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28198798/patterned-transparent-electrode-with-a-continuous-distribution-of-silver-nanowires-produced-by-an-etching-free-patterning-method
#2
Kwonwoo Shin, Ji Sun Park, Jong Hun Han, Yunsu Choi, Dae Sung Chung, Se Hyun Kim
The outstanding electrical, optical, and mechanical properties of silver nanowire transparent electrodes are attractive for use in many optoelectronic devices, and the recent developments related to these electrodes have led to their commercialization. To more fully utilize the advantages of this technology, developing new process technologies in addition to performance improvements is important. In this report, we propose a novel ultra-simple patterning technology to generate a silver nanowire transparent layer and a unique patterned structure with continuously distributed silver nanowires without any etched areas...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28195274/role-of-etching-mode-on-bonding-longevity-of-a-universal-adhesive-to-eroded-dentin
#3
Tamires Vercelino Forgerini, Jéssica Fogliato Ribeiro, Rachel de Oliveira Rocha, Fabio Zovico Maxnuck Soares, Tathiane Larissa Lenzi
PURPOSE: To assess the immediate and six-month microshear bond strength (μSBS) of a universal adhesive applied using different etching strategies on sound and eroded dentin. MATERIALS AND METHODS: Eighty bovine incisors were polished to obtain flat buccal dentin. Forty teeth were submitted to a pH-cycling model to simulate artificial erosion (3x/day cola drink for 7 days). Teeth from both dentin conditions (sound and eroded) were randomly assigned to four groups according to the adhesive and etching approach: a universal adhesive in self-etch and etch-and-rinse modes (Scotchbond Universal Adhesive), and as controls a twostep etch-and-rinse adhesive (Adper Single Bond Plus), and a two-step self-etch adhesive (Clearfil SE Bond)...
February 10, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28195272/bonding-efficacy-and-fracture-pattern-of-adhesives-submitted-to-mechanical-aging-with-the-rub-roll-device
#4
Anelise F Montagner, Niek J M Opdam, Jan De Munck, Maximiliano S Cenci, Bart Van Meerbeek, Marie-Charlotte D N J Huysmans
PURPOSE: To evaluate the effect of water storage and cyclic loading on the microtensile bond strength (μTBS) and fracture pattern of adhesives to dentin. MATERIALS AND METHODS: Midcoronal dentin surfaces (n = 36) were prepared and composite restorations were built up using two adhesives (self-etch and etch-and-rinse). The specimens were randomly divided into 3 groups according to the aging conditions (n = 6): 1. CONTROL: storage in water for 24 h (CO); 2...
February 10, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28182862/proanthocyanidins-loaded-nanoparticles-enhance-dentin-degradation-resistance
#5
A S Fawzy, B M Priyadarshini, S T Selvan, T B Lu, J Neo
Previous studies reported that grapeseed extract (GSE), which is rich in proanthocyanidins (PAs), improves the biodegradation resistance of demineralized dentin. This study aimed to investigate the effect of a new GSE delivery strategy to demineralized dentin through loading into biodegradable polymer poly-[lactic-co-glycolic acid] (PLGA) nanoparticles on the biodegradation resistance in terms of structural stability and surface/bulk mechanical and biochemical properties with storage time in collagenase-containing solutions...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28169265/evaluation-of-matrix-metalloproteinase-and-cysteine-cathepsin-activity-in-dentin-hybrid-layer-by-gelatin-zymography
#6
Sekar Mahalaxmi, Manavalan Madhana Madhubala, Mahendran Jayaraman, Shanmugasundaram Sathyakumar
AIM: The aim of this study was to comparatively assess the gelatinolytic activity of matrix metalloproteinases(MMPs) and Cysteine Cathepsins (CCs) in the adhesive interface using etch and rinse adhesive at different time intervals using zymographic technique. METHODOLOGY: Twenty freshly extracted non-carious human third molars were used in this study. Occlusal surfaces were ground flat and 1mm thick horizontal dentin slabs were obtained from each tooth using a diamond disc...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28149471/bond-strength-of-adhesive-resin-cement-with-different-adhesive-systems
#7
Fabrizio Lorenzoni E Silva, Saulo Pamato, Milton-Carlos Kuga, Marcus-Vinicius-Reis Só, Jefferson-Ricardo Pereira
BACKGROUND: To assess the immediate bond strength of a dual-cure adhesive resin cement to the hybridized dentin with different bonding systems. MATERIAL AND METHODS: Fifty-six healthy human molars were randomly divided into 7 groups (n=8). After 3 longitudinal sections, the central cuts were included in PVC matrix and were submitted to dentin hybridization according to the groups: G1 - etch & rinse system with 3-step (Apder™ Scotchbond™ Multi-Purpose, 3M ESPE), G2 - etch & rinse system with 3-step (Optibond™ FL, Kerr), G3 - etch & rinse system with 3-step (All-Bond 3®, Bisco), G4 - etch & rinse simplified system (Adper™ Single Bond 2, 3M ESPE), G5 - self-etching system with one step (Bond Force, Tokuyama), G6 - universal system in moist dentin (Single Bond Universal, 3M ESPE), G7 - universal system in dry dentin (Single Bond Universal, 3M ESPE)...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28127314/effect-of-chlorhexidine-application-protocol-on-durability-of-marginal-seal-of-class-v-restorations
#8
Anna Saffarpour, Aida Saffarpour, Mohammad Javad Kharazifard, Atoussa Entezami Rad
OBJECTIVES: This study aimed to evaluate the effect of chlorhexidine (CHX) application protocol on durability of marginal seal of class V composite restorations. MATERIALS AND METHODS: Class V cavities (4×2×1.5mm) were prepared in the buccal surfaces of 160 human third molars. The teeth were randomly divided into five groups (n=32) of (G1) CHX+rinse+etching, (G2) CHX+etching, (G3) etching+CHX+rinse, (G4) etching+ CHX, and (G5) etching alone as the control group...
August 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28127313/effect-of-lactic-acid-on-microleakage-of-class-v-low-shrinkage-composite-restorations
#9
Sedigheh Sadat Hashemikamangar, Seyed Jalal Pourhashemi, Zohre Nekooimehr, Mehrzad Gholampur Dehaki, Mohamad Javad Kharazifard
OBJECTIVES: To assess the effect of lactic acid (LA) on microleakage of silorane-based composite restorations and methacrylate-based composites with self-etch and etch-and-rinse bonding systems. MATERIALS AND METHODS: Class V cavities were prepared in 120 extracted human teeth, divided into four groups and restored as follows: 1. Silorane-based composite+P90 adhesive system (P90); 2. Filtek Z250+SE Bond (Z250SE); 3. Filtek Z350+SE Bond (Z350SE) and 4. Filtek Z250+Single Bond (Z250SB)...
August 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28117914/chemotherapeutic-decontamination-of-dental-implants-colonized-by-mature-multispecies-oral-biofilm
#10
Sebastien Dostie, Lubna T Alkadi, Gethin Owen, Jiarui Bi, Ya Shen, Markus Haapasalo, Hannu S Larjava
AIM: No studies have tested disinfectants on mature multispecies oral biofilms on titanium substrata. The aim of this study was to investigate the efficacy of commonly used antimicrobial agents in decontamination of multispecies mature oral biofilm on SLA titanium implants. METHODS: SLA titanium disks were inoculated with dental plaque and cultured anaerobically for 21 days. The disks were rinsed with 0.9% NaCl, exposed for 2 minutes to tetracycline paste, 1% Chlorhexidine gel (CHX), 35% phosphoric acid gel (Etch) or a novel chemical formula (0...
January 24, 2017: Journal of Clinical Periodontology
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
#11
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/28094025/mechanical-and-microbiological-properties-and-drug-release-modeling-of-an-etch-and-rinse-adhesive-containing-copper-nanoparticles
#12
M F Gutiérrez, P Malaquias, T P Matos, A Szesz, S Souza, J Bermudez, A Reis, A D Loguercio, P V Farago
OBJECTIVES: To evaluate the effect of addition of copper nanoparticles (CN) at different concentrations into a two-step etch-and-rinse (2-ER) adhesive on antimicrobial activity (AMA), copper release (CR), ultimate tensile strength (UTS), degree of conversion (DC), water sorption (WS), solubility (SO), as well as the immediate (IM) and 1-year resin-dentin bond strength (μTBS) and nanoleakage (NL). METHODS: Seven adhesives were formulated according to the addition of CN (0, 0...
January 13, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28091433/clinical-evaluation-of-microhybrid-composites-in-noncarious-cervical-lesions-24-month-results
#13
D Tuncer, C Çelik, K Yamanel, N Arhun
OBJECTIVE: To evaluate the clinical performance of two different microhybrid resin composites in noncarious cervical lesions (NCCLs) after 24 months. SUBJECTS AND METHODS: Ninety-seven NCCLs were restored with either TPH Spectrum (n = 48) or Filtek Z250 (n = 49) using an etch-and-rinse adhesive in 20 patients. The restorations were clinically evaluated using modified United States Public Health Service criteria for retention, color match, marginal discoloration, marginal adaptation, surface texture, anatomic form, postoperative sensitivity, and secondary caries...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28050982/effect-of-tannic-acid-on-bond-strength-of-etch-and-rinse-and-self-etch-adhesive-systems-in-dentin-of-primary-teeth
#14
Masoumeh Ebrahimi, Alireza Sarraf Shirazi, Faraneh Abdolhoseinpour, Mojtaba Abdollahi
INTRODUCTION: One of the possible mechanisms for the gradual destruction of bond strength in dentin-resin interface, could be due to the demineralized unstable collagen matrix. Use of protease inhibitors, such as tannic acid (TA) could prevent destruction of collagen fibers. The aim of this study was to compare the TA effect on bond strength of etch and rinse and self-etch adhesive systems in the dentin of primary teeth. MATERIALS AND METHODS: This in vitro study was done on 40 extracted primary molar teeth...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28024165/evaluation-of-pit-and-fissure-sealants-placed-with-four-different-bonding-protocols-a-randomized-clinical-trial
#15
Manasi Khare, Baranya Shrikrishna Suprabha, Ramya Shenoy, Arathi Rao
BACKGROUND: Application of adhesive after acid etching may increase the retention of pit-and-fissure sealants and improve clinical effectiveness. AIMS: To clinically evaluate the retention, marginal discoloration and caries incidence of pit-and-fissure sealants applied using four bonding protocols: conventional acid etching, etch-and-rinse adhesive, multimode universal adhesive and self-etch adhesive used after acid etching. DESIGN: In this split-mouth design study, the four adhesive protocols were randomly assigned to the four erupted, non-carious first permanent molars and involved 52 patients between 6 and 10 years of age...
December 26, 2016: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/27994318/resin-bond-strength-to-water-versus-ethanol-saturated-human-dentin-pretreated-with-three-different-cross-linking-agents
#16
Bhuvan Shome Venigalla, Pinnamreddy Jyothi, Shekhar Kamishetty, Smitha Reddy, Ravi Chandra Cherukupalli, Depa Arun Reddy
CONTEXT: Resin-dentin bonds are unstable owing to hydrolytic and enzymatic degradation. Several approaches such as collagen cross-linking and ethanol-wet bonding (EWB) have been developed to overcome this problem. Collagen cross-linking improves the intrinsic properties of the collagen matrix. However, it leaves a water-rich collagen matrix with incomplete resin infiltration making it susceptible to fatigue degradation. Since EWB is expected to overcome the drawbacks of water-wet bonding (WWB), a combination of collagen cross-linking with EWB was tested...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27988345/use-of-lining-materials-under-posterior-resin-composite-restorations-in-the-uk
#17
Igor R Blum, Nadeem Younis, Nairn H F Wilson
OBJECTIVES: To investigate opinions on, and current use of lining materials prior to the placement of posterior resin composite restorations by general dental practitioners (GDPs) in the UK. A further objective was to investigate aspects of posterior resin composite restoration placement techniques employed by UK GDPs. METHODS: A questionnaire was devised to gain the information sought. It was sent to 500 UK dentists, chosen at random from the register of the General Dental Council...
December 14, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27982229/effect-of-two-antioxidants-agents-on-microtensile-bond-strength-to-bleached-enamel
#18
Marina Studart Alencar, Juliana Fraga Soares Bombonatti, Rafael Massunari Maenosono, Ana Flávia Soares, Linda Wang, Rafael Francisco Lia Mondelli
This in vitro study evaluated the effect of sodium bicarbonate and sodium ascorbate on the microtensile bond strength of an etch-and-rinse system to bleached bovine enamel. Sixty bovine enamel blocks (4x4 mm) were flattened and randomly allocated into 5 groups: G1 (negative control): without treatment; G2 (positive control): bleached with 35% hydrogen peroxide (HP); G3: bleached and stored for 7 days in artificial saliva before restorative procedures; G4: bleached and treated with 10% sodium bicarbonate solution for 5 min; G5: bleached and treated with 10% sodium ascorbate hydrogel for 15 min...
September 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27982183/adhesives-doped-with-bioactive-niobophosphate-micro-filler-degree-of-conversion-and-microtensile-bond-strength
#19
Karina Kato Carneiro, Marcia Margarete Meier, Clenilton Costa Dos Santos, Adeilton Pereira Maciel, Ceci Nunes Carvalho, José Bauer
To evaluate the effect of incorporating niobium phosphate bioactive glass (NbG) into commercial etch-and-rinse adhesive systems, with and without silane, on their degree of conversion (DC) (%) and microtensile bond strength (μTBS). The NbG micro-filler was added to two etch-and-rinse adhesive systems: One Step (OS) and Prime & Bond (PB) at 40% concentration. The following groups were formed: control without glass addition OS; addition of unsilanized NbG (OSNbG); addition of silanized NbG (OSNbGS); control without glass PB; addition of unsilanized NbG (PBNbG); addition of silanized NbG (PBNbGS)...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27982180/effects-of-contamination-by-hemostatic-agents-and-use-of-cleaning-agent-on-etch-and-rinse-dentin-bond-strength
#20
César Rogério Pucci, Rodrigo Maximo de Araújo, Ana Julia Farias de Lacerda, Mirella Anjos de Souza, Maria Filomena Rocha Lima Huhtala, Fernanda Alves Feitosa
The aim of this study was to evaluate the influence of contamination by hemostatic agents and rinsing with chlorhexidine on bond strength between dentin and resin composite. Ninety-six bovine teeth were sectioned to expose a flat dentin surface area. A standardized cavity with 2.0 mm in thickness, superficial diameter of 4.0 mm and bottom diameter of 3.0 mm was prepared with a diamond bur in each dentin specimen. The teeth were divided into four groups according to the hemostatic employed: G1: control; G2: use of ViscoStat, Ultradent; G3: Hemosthasegel, FGM; and G4: Hemostop, Dentsply...
October 2016: Brazilian Dental Journal
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