Nanoleakage patterns of four dentin bonding systems

Li, H.; Burrow, MF; Tyas, Martin J.

doi:10.1016/s0109-5641(99)00085-8

Cited by 102 publications

(102 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[12][13][14][15][16][17][18][19][20][21] Moreover, a lack of the resin infiltration has been found at the fractured surface after bond testing. [22][23][24][25][26][27] Water penetration to the adhesive interfaces via a bond defect (i.e., nanoleakage or the demineralized dentin zone) might induce bond deterioration due to the hydrolysis of the collagen fibrils or resin materials.…”

Section: Discussionmentioning

confidence: 99%

Deproteinizing effects on resin–tooth bond structures

et al. 2003

View full text Add to dashboard Cite

This study investigated the effects of NaOCl on resin-tooth bonds to simulate the situations of long-term durability and caries invasion. Resin-tooth bonded specimens were produced with the use of two resin adhesives (Excite and One-Bond). Resin-tooth bonded beams (adhesive area; 0.9 mm 2 ) were serially sectioned and the specimens were immersed in 10% NaOCl medium for 0 (control), 2, 4, and 6 h after being stored in water for 24 h. After immersion, microtensile bond tests were performed. SEM fractography was conducted to calculate each failure mode by image analysis. In addition, the adhesive interface was examined with the use of TEM. In the control specimens, enamel bond strengths had no difference between Excite (45.6 ؎ 15.0) and One-Bond (56.9 ؎ 12.9). On the other hand, dentin bond strengths had significant difference between Excite (80.6 ؎ 21.2) and One-Bond (50.7 ؎ 11.2). The bond strengths decreased with increased storage time for both systems with enamel and dentin bonds. The deteriorated mineralized dentin of beams resulted in bondstrength reduction for resin-enamel bonds. For dentin bonding, the adhesive interface was gradually dissolved from the outer to the center portion of the beam. The depletion of collagen fibrils within the demineralized dentin or hybrid layer deformation was found under SEM and TEM examinations. These morphological changes are responsible for bond strength reduction of resin-dentin bonds.

show abstract

Section: Discussionmentioning

confidence: 99%

Deproteinizing effects on resin–tooth bond structures

et al. 2003

View full text Add to dashboard Cite

show abstract

“…This phenomenon is thought to occur due to insufficient infiltration of resin monomer into demineralized dentin or extraction of incomplete polymerized monomers in the submicron interfacial spaces. Recently, it has been indicated that nanoleakage not only happens in the hybrid layer, but also in hydrophilic adhesive resin layer 15,16) . Nanoleakage permits water penetration which may accelerate plasticization of the resin and hydrolysis of exposed collagen within the hybrid layer, resulting in degradation of the adhesive interface.…”

Section: Introductionmentioning

confidence: 99%

Effect of smear layer treatment on dentin bond of self-adhesive cements

et al. 2012

View full text Add to dashboard Cite

The purpose of this study was to compare the dentin bond strength of three self-adhesive cements with smear layer pretreatments using a calcium-chelating agent (EDTA) and deproteinizing solution (NaOCl) and to evaluate their interfacial characteristics. Smear layer-covered dentin surfaces were pretreated with EDTA for 60 s, NaOCl for 5 and 15 s, or none. Three self-adhesive cements; Clearfil SA luting (Kuraray Medical), Rely X Unicem clicker (3M ESPE) and Breeze (Pentron) were applied to the dentin surfaces. After 24-h water storage, shear bond strengths to dentin were determined. In addition, nanoleakage evaluation at the interface was performed using FE-SEM and EDS. EDTA-pretreatment significantly improved the bond strength of BR (p<0.05) and NaOCl-pretreatment for 15 s significantly improved the bond strength of RX (p<0.05). On the other hand, for SA, both pretreatments significantly decreased bond strength to dentin (p<0.05). Nanoleakage formation was observed in various amounts at the cement-dentin interfaces.

show abstract

“…In most in vitro tests, there are variations in the period of storage, which can be 24 hours, a week, two weeks, 3, 6 or 12 months [18,11,19]. The storage time in the present study was 24 hours.…”

Section: Discussionmentioning

confidence: 82%

“…The scientific literature contains studies reporting a reduction in infiltration based on the use of adhesive systems [11][12][13][14][15][16][17][18][19][20] over a short-term assessment period. Thus, shortterm results are material-dependent, given that long-term assessments have shown that the adhesive is not the dominant factor in terms of reducing infiltration around amalgam restorations [11].…”

Section: Discussionmentioning

confidence: 99%

Universal Adhesive Systems in Class II Amalgam Restorations

Nascimento

Lima

Souza

et al. 2016

Rev. Odonto Ciênc. (Online)

View full text Add to dashboard Cite

Objective: To assess the effectiveness of adhesive system in reducing microleakage in class II amalgam restorations. Methods: The teeth were divided randomly into 3 equal groups: Group I was the control experiment (Copal Vanish); Group II: single Bond Universal 3M-ESPE (with and without acid -37%); and Group III: All Bond Universal -BISCO (with and without acid -37%), after the amalgam was condensed. The root apices were then sealed with acrylic resin and stored for 24 hours in 100% humidity. After storage, the specimens were subjected to 500 cycles of thermocycling (5°C and 55°C). The teeth were isolated with cosmetic nail polish and were immersed in 0.5 basic fuchsin dye for 24 hours. The teeth then were sectioned with a diamond disc and observed under a stereomicroscope. Microleakage was assessed using a 0-3 scale of dye penetration. The data was analyzed using the Kruskal-Wallis test (p<0.05). Results: The microleakage scores revealed less leakage in the experimental groups than in the control group. The microleakage for the adhesives without acid conditioning was reduced, although no statistical significance was recorded (p<0.05). Conclusion: The immediate adhesive material acted effectively as a barrier for microleakage when it was applied without acid.Key words: Adhesives; Universal adhesive; Amalgams; Microleakage; Class II Sistema adesivo universal em restaurações de amálgama classe II RESUMO Objetivo: Avaliar a eficácia do sistema adesivo na redução da microinfiltração em restaurações de amálgama classe II. Metodologia: Os dentes foram divididos aleatoriamente em três grupos iguais: Grupo I foi o controle (Copal Vanish); Grupo II: Single Bond Universal 3M ESPE -(com e sem ácido -37%); e Grupo III: All bond Universal -BISCO (com e sem ácido -37%) com posterior condessação do amálgama. Os ápices foram então seladas com resina acrílica e armazenado durante 24 horas em 100% de humidade. Após a armazenagem, as amostras foram submetidas a 500 ciclos de termociclagem (5°C e 55°C). Os dentes foram isolados com esmalte para unha e foram imersos em 0,5 de fucsina básica por 24 horas. Em seguida os dentes foram seccionados com disco de diamante e observados sob microscópio estereoscópico. A microinfiltração foi avaliada usando uma escala de penetração do corante de 0-3. Os dados foram analisados utilizando o teste de Kruskal-Wallis (p<0,05). Resultados: Os escores revelaram menor infiltração nos grupos experimentais do que no grupo de controle. A infiltração para os adesivos sem condicionamento ácido foi reduzida, embora sem significância estatística (p<0,05). Conclusão: O material adesivo imediato atuou efetivamente como uma barreira para microinfiltração, quando foi aplicada sem condicionamento ácido.

show abstract

Nanoleakage patterns of four dentin bonding systems

Cited by 102 publications

References 23 publications

Deproteinizing effects on resin–tooth bond structures

Deproteinizing effects on resin–tooth bond structures

Effect of smear layer treatment on dentin bond of self-adhesive cements

Universal Adhesive Systems in Class II Amalgam Restorations

Contact Info

Product

Resources

About