Recommended Conferences

Dentistry and Dental Materials

New York, USA
Related Subjects
 

Microtensilevsmicroshear bond strength of all-in-one adhesives to unground enamel

Author(s): Beloica M, Goracci C, Carvalho CA, Radovic I, Margvelashvili M, et al.

Abstract

Purpose: to determine the bond strength to unground enamel of all-in-one adhesives in comparison with an etch-andrinse system and to compare the reliability of microtensile and microshear methods in providing such measurements.

Materials and methods: the bonding procedure was performed on enamel of 64 extracted molars. The tested all-inone adhesives were: Bond Force (Tokuyama), AdheSE One (Ivoclar-Vivadent), and Xeno V (Dentsply). Prime&Bond NT (Dentsply) served as control. Microtensile specimens were obtained from 4 teeth per group. Twelve teeth per group were used for microshear testing. Microtensile specimens that failed prior to testing were included in statistical calculations; they were assigned the lowest value measured in the respective group. Failure modes were observed under light microscope and classified (cohesive within substrates, adhesive, mixed). Statistically significant differences in bond strength were assessed among the adhesives within each testing method and between microshear and microtensile data for each adhesive. Failure mode distributions were compared using the chi-square test.

Results: all-in-one adhesives had similar microshear and microtensile bond strengths. In both testing methods, the etch-and-rinse system achieved the strongest bond. For all adhesives, significantly higher bond strengths were measured with the microshear test. In microtensile testing, specimens bonded with the etch-and-rinse adhesive exhibited a significantly different distribution of failure modes. The coefficients of variation were extremely high for microtensile bond strength data, particularly of all-in-one adhesives.

Conclusion: the adhesive potential to intact enamel of recently introduced all-in-one adhesives was inferior to that of an etch-and-rinse system. When testing bond strength to enamel of all-in-one adhesives, microshear testing may be a more accurate method than microtensile.

Similar Articles

Buonocore memorial lecture

Author(s): Van Meerbeek B, De Munck J, Yoshida Y, Inoue S, Vargas M, et al.

Shear bond strength of different adhesive systems to primary dentin and enamel

Author(s): Miranda C, Prates LH, Vieira Rde S, Calvo MC

Bond strength of different adhesive systems to dental hard tissues

Author(s): Yazici AR, Celik C, Ozgünaltay G, Dayangaç B

Resin-enamel bonds made with self-etching primers on ground enamel

Author(s): Hashimoto M, Ohno H, Yoshida E, Hori M, Sano H, et al.

Effect of enamel pretreatments on bond strength of compomer

Author(s): Glasspoole EA, Erickson RL, Davidson CL

Bond strength of one-step self-etch adhesives and their predecessors to ground versus unground enamel

Author(s): Yazici AR, Yildirim Z, Ertan A, Ozgunaltay G, Dayangac B, et al.

Composite bond strength to enamel with self-etching primers

Author(s): Lopes GC, Marson FC, Vieira LC, de Caldeira AM, Baratieri LN

Systematic review of the chemical composition of contemporary dental adhesives

Author(s): Van Landuyt KL, Snauwaert J, De Munck J, Peumans M, Yoshida Y, et al.

Shear bond strength of four filled dentin bonding systems

Author(s): Gallo JR, Comeaux R, Haines B, Xu X, Burgess JO

Bond efficacy and interface morphology of self-etching adhesives to ground enamel

Author(s): Abdalla AI, El Zohairy AA, Abdel Mohsen MM, Feilzer AJ

Comparative study on adhesive performance of functional monomers

Author(s): Yoshida Y, Nagakane K, Fukuda R, Nakayama Y, Okazaki M, et al.

Micro-shear bond strength of different adhesives to human dental enamel

Author(s): Nagayassu MP, Shintome LK, Arana-Chavez VE, Fava M

Microtensile bond strength of contemporary adhesives to primary enamel and dentin

Author(s): Marquezan M, da Silveira BL, Burnett LH Jr, Rodrigues CR, Kramer PF