Early and 24-hour bond strength and degree of conversion of etch-and-rinse and self-etch adhesives

Fernanda Tranchesi Sadek, Fernanda Calabró Calheiros, Paulo Eduardo Capel Cardoso, Yoshio Kawano, Franklin Chi Meng Tay, Marco Ferrari

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Purpose: To evaluate early and 24-hour microtensile bond strength (μTBS) and the degree of conversion (DC) of one representative adhesive system from each of the four current bonding approaches. Methods: 40 human molars were sectioned occluso-gingivally into two halves. Resin composite was bonded incrementally to flat, mid-coronal dentin, using the adhesives Adper Scotchbond MP (MP); Adper Scotchbond 2 (SB); Clearfil SE Bond (SE); and Adper Prompt LPop (LP) according to the respective manufacturer's instructions (n= 10). One half was immediately sectioned into sticks and subjected to μTBS test. As the sectioning process took approximately 1 hour, the results were designated as 1-hour bond strengths. The other half was stored in distilled water at 37°C for 24 hours before being sectioned and tested. The DC of these systems was measured using Fourier Transform-Raman spectroscopy in three periods: immediately, 1 and 24 hours after polymerization. Data were analyzed with ANOVA and Tukey's tests. Results: There were no significant differences between the 1-hour and 24-hour bond strengths (P>0.05), or among the DC measured immediately, 1 hour and 24 hours after polymerization (P>0.05). However, significant differences were observed among adhesives (P<0.05). μTBS values obtained, in MPa (1 hour/24 hour), were: SB (48.6 + 1.3/48.4 + 3.5) = SE (51.9 + 4.7/53.3±2.9) > MP (35.3 ±10.9/38.6 + 6.7) > LP (25.5 + 1.1/26.0 + 1.5). The DC, in percentage (immediately/lhour/24 hour), were: SE (81/82/87) > MP (79/77/81) > SB (60/63/65) > LP (39/37/42).

Original languageEnglish (US)
Pages (from-to)30-34
Number of pages5
JournalAmerican journal of dentistry
Volume21
Issue number1
StatePublished - Feb 1 2008

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Polymerization
Adhesives
Raman Spectrum Analysis
Composite Resins
Fourier Analysis
Dentin
Analysis of Variance
Water
scotchbond 2
Clearfil SE Bond
Scotchbond

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Sadek, F. T., Calheiros, F. C., Cardoso, P. E. C., Kawano, Y., Tay, F. C. M., & Ferrari, M. (2008). Early and 24-hour bond strength and degree of conversion of etch-and-rinse and self-etch adhesives. American journal of dentistry, 21(1), 30-34.

Early and 24-hour bond strength and degree of conversion of etch-and-rinse and self-etch adhesives. / Sadek, Fernanda Tranchesi; Calheiros, Fernanda Calabró; Cardoso, Paulo Eduardo Capel; Kawano, Yoshio; Tay, Franklin Chi Meng; Ferrari, Marco.

In: American journal of dentistry, Vol. 21, No. 1, 01.02.2008, p. 30-34.

Research output: Contribution to journalArticle

Sadek, FT, Calheiros, FC, Cardoso, PEC, Kawano, Y, Tay, FCM & Ferrari, M 2008, 'Early and 24-hour bond strength and degree of conversion of etch-and-rinse and self-etch adhesives', American journal of dentistry, vol. 21, no. 1, pp. 30-34.
Sadek, Fernanda Tranchesi ; Calheiros, Fernanda Calabró ; Cardoso, Paulo Eduardo Capel ; Kawano, Yoshio ; Tay, Franklin Chi Meng ; Ferrari, Marco. / Early and 24-hour bond strength and degree of conversion of etch-and-rinse and self-etch adhesives. In: American journal of dentistry. 2008 ; Vol. 21, No. 1. pp. 30-34.
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