Nogawa Hiroshi, Koizumi Hiroyasu, Akazawa Nobutaka, Hiraba Haruto, Nakamura Mitsuo, Matsumura Hideo
Division of Applied Oral Science, Nihon University Graduate School of Dentistry.
J Oral Sci. 2015 Mar;57(1):17-24. doi: 10.2334/josnusd.57.17.
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.
本研究的目的是评估不含4-甲基丙烯酰氧基乙基偏苯三酸酐(4-META)的三正丁基硼烷(TBB)引发树脂与人类牙釉质的粘结耐久性。将磨碎的人类牙釉质在六种表面条件下与TBB树脂粘结:1)磨碎后;2)用牙齿底漆预处理;3)亚硫酸钠溶液处理;4)4-META溶液处理;5)丙酮-水处理;6)磷酸蚀刻处理。比较了热循环前后的粘结强度以及热循环后的强度变化。用35%-45%的磷酸蚀刻牙釉质可提高牙釉质与TBB引发树脂之间的粘结耐久性。用牙齿底漆或4-META溶液预处理可提高牙釉质与TBB引发树脂之间的粘结强度。在本粘结体系中,亚硫酸钠对牙釉质粘结几乎没有影响。