Modifications of the organic and mineral fractions of dental tissues following conditioning by self-etching adhesives

Dieng-Sarr, Farimata; Sharrock, Patrick; Dabsie, Firas; Grégoire, Geneviève

doi:10.1016/j.jdent.2010.11.004

Cited by 25 publications

(26 citation statements)

References 23 publications

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“…Acid etching technique using phosphoric acid is well accepted for various applications in dentistry [3][4][5][6]8,10,[12][13][14][15][16] . In the current study, the etching time has been found to affect the surface features of etched tooth tissues.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly an additional 30 s etching is suggested for enamel if uniform white frosted appearance is not obtained using the recommended etching time 2) . In order to improve the adhesion of resin restorative materials to the tooth structure, the role of acid etching using phosphoric acid (35-38%) has been well documented and supported by a number of studies [3][4][5][6][7][8][9][10] . The effect of etching time on the final bond strength as well as underlying physical surface properties is not very well understood.…”

Section: Introductionmentioning

confidence: 99%

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The effects of acid etching time on surface mechanical properties of dental hard tissues

Zafar

Ahmed

2015

Dental Materials Journal

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The objective of this study was to evaluate the effect of etching time on the surface properties of dental hard tissues including enamel and dentin. For this purpose, samples were prepared using extracted human teeth and treated with 37% phosphoric acid for various length of time using the set protocol. The effects of etching time on surface roughness were assessed using non-contact surface roughness profilometer and surface hardness was measured using nanoindentation technique. All results were analyzed statistically using SPSS computer software. Within the limitation of this study, it was concluded that etching time influences on the surface properties of dental hard tissues particularly the enamel. Enamel surface properties such as roughness and hardness can be altered remarkable as a matter of few seconds. Prolonged etching time than recommended is likely to increase the surface roughness and decrease surface hardness; compromising the bond strength of adhesive materials in clinical applications.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of acid etching time on surface mechanical properties of dental hard tissues

Zafar

Ahmed

2015

Dental Materials Journal

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“…En este estudio fueron evaluados dos adhesivos autograbadores de uno y dos pasos: Adhese (Ivoclar Vivadent ag, Liechtenstein, Alemania) de dos pasos presenta un ph 3,4 [15], y el adhesivo ScotchBond Universal Adhesive (3m Espe, Neuss, Alemania) además presenta mdp (monómeros fosfatados) [16], elemento que ayuda a mejorar la adhesión química. Esta es una de las razones por las cuales el adhesivo de dos pasos, cuando fue realizado el microarenado, aumentó los valores de resistencia de unión, contrario al ScotchBond Universal, ya que en este adhesivo interfiere la adhesión química.…”

Section: Discussionunclassified

Efectos de aplicación de ácido fosfórico y microarenado en adhesivos autograbadores de uno y dos pasos

et al. 2015

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Resumen. Introducción: el objetivo de esta investigación fue evaluar la resistencia deunión a las fuerzas de microcizallamiento de dos adhesivos de autograbado: un solopaso y dos pasos en esmalte, previa aplicación de ácido y microarenado. Métodos:se utilizaron 40 terceros molares humanos, recientemente extraídos, fueronlijados con 600-2500 y divididos en dos grupos: 1) un paso (n = 20), 2) dos pasos(n = 20); a su vez, se subdividen en cuatro subgrupos, según el procedimiento (sa-sm:aplicación de adhesivo según fabricante, sa-m: previa aplicación de microarenadoy adhesivo, ca-sm: aplicación de ácido fosfórico 37% y aplicación de adhesivo,ca-m: aplicación de microarenado, ácido fosfórico 37% y adhesivo). Posteriormente,fueron colocados de dos a tres cuerpos de tygon en cada superficie. Fue llevado atest de microcizallamiento. Los datos fueron analizados en test de normalidadD’Agostino. Después, se realizó Anova de dos criterios y postest Bonferrini(α = 0,05). Resultados: para el adhesivo de dos pasos previa aplicación de ácidofosfórico 37% o microarenado, no presenta aumento significativo de los valores deresistencia de unión en esmalte (p = 0,678). La aplicación de ácido fosfórico al 37%en esmalte previo al adhesivo un paso presenta aumento de los valores de resistenciade unión (p = 0,001). Conclusiones: el microarenado previo al proceso de adhesiónno ayuda a aumentar los valores de resistencia de unión al esmalte; la aplicación deácido fosfórico ayuda al aumento de los valores de resistencia de unión en esmalte

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“…µTBS of two layer application of AEB showed a decrease in MPa values. According to the authors [14][15][16][17][18] the AEB showed more acidic patterns and this may lead a deep penetration of the dentin substrate and showed high values of µTBS. In this study it was found that µTBS of one layer application of this adhesive was significantly different from two layer applications and the authors claimed that it was hard to obtain sticks from G2 specimens.…”

Section: Discussionmentioning

confidence: 99%

Microtensile Bond Strength of One vs Two Layer Applications of Three Disposable Seventh Generation Adhesives

Öznurhan

2015

J Dent Probl Solut

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Objectives: The aim of this in vitro study was to compare the microtensile bond strength (µTBS) of single versus two layers of three different 7 th generation adhesives. Materials and Methods:One third of the human molar teeth from the coronal portion was removed and smear layer was created on these surfaces by using Silicone carbide paper. Adper Easy Bond (AEB), ClearfilS3 bond Single Dose (CS3) and Optibond Unidose (OB) were applied to flat dentin according to the manufacturer's instructions. Six groups; Group1: single application of AEB, Group2: twice application of AEB Group3: single application of CS3, Group4: twice application of CS3 Bond Group5: single application of OB, Group6: twice application of OB, were obtained. After applying adhesive, resin composite crowns were build up in 1mm increments up to 5 mm. After storage in distillated water for 24 hour (h), the specimens were sectioned to sticks and 15 sticks were obtained for each group. The sticks were stressed in tension until failure to see the microtensile bond strength values using a microtensile testing machine and the data were recorded. After recording data in SPSS 15.0, statistical analyses were made with ANOVA, Independent Sample T test and Tukey's post-hoc test at 0.05 level of significance.Results: Significant differences were not found among the G1, G3, G5 (p>0.05). G6 exhibited significantly higher µTBS compared to the G2 and G4 (p<0.001). No significant differences were found among the groups regarding the failure types between cohesive or adhesive (p>0.05). Lower µTBS values were observed in two layer application when compared to the one layer application of AEB and CS3. G6 resulted in significantly higher µTBS values compared to G5 (p<0.001). Conclusion:The results of the current investigation showed that two layer applications would be beneficial depending on the composition of adhesive and dentin substrate.

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Modifications of the organic and mineral fractions of dental tissues following conditioning by self-etching adhesives

Cited by 25 publications

References 23 publications

The effects of acid etching time on surface mechanical properties of dental hard tissues

The effects of acid etching time on surface mechanical properties of dental hard tissues

Efectos de aplicación de ácido fosfórico y microarenado en adhesivos autograbadores de uno y dos pasos

Microtensile Bond Strength of One vs Two Layer Applications of Three Disposable Seventh Generation Adhesives

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