Journal of Oral Science 2015-03-01

Effect of sodium sulfite, carboxylic monomer, and phosphoric acid etching on bonding of tri-n-butylborane initiated resin to human enamel.

Hiroshi Nogawa, Hiroyasu Koizumi, Nobutaka Akazawa, Haruto Hiraba, Mitsuo Nakamura, Hideo Matsumura

Index: J. Oral Sci. 57(1) , 17-24, (2015)

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Abstract

The purpose of the present study is evaluation of bonding durability of tri-n-butylborane (TBB) initiated resin without 4-methacryloyloxyethyl trimellitate anhydride (4-META) joined to human enamel. Ground human enamel was bonded with TBB resin under six surface conditions: 1) as ground, 2) primed with Teeth Primer, 3) sodium sulfite solution, 4) 4-META solution, 5) acetone-water, and 6) phosphoric acid etching. Pre- and post-thermocycling bond strengths and change in strength after thermocycling were compared. Etching enamel with 35-45% phosphoric acid enhanced bonding durability between enamel and TBB-initiated resin. Priming with Teeth Primer or 4-META solution improved bond strength between enamel and TBB-initiated resin. Sodium sulfite had little effect on enamel bonding in the present bonding systems.

Related Compounds

  • Hydrochloric acid
  • Phosphoric acid
  • Osmium
  • HYDROGEN CHL...

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