Kinetics of conversion of two dual-cured adhesive systems

被引：28
作者：
Faria-e-Silva, Andre Luis [1 ]
Maia Casselli, Denise Sa [1 ]
Lima, Giana Silveira [2 ]
Ogliari, Fabricio Aulo [2 ]
Piva, Evandro [2 ]
Marcondes Martins, Luis Roberto [1 ]
机构：
[1] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Restorat Dent, BR-13414903 Sao Paulo, Brazil
[2] Univ Fed Pelotas, Sch Dent, Dept Restorat Dent, Pelotas, RS, Brazil
来源：
JOURNAL OF ENDODONTICS | 2008年 / 34卷 / 09期
关键词：
degree of conversion; dual-cure adhesives; light curing; self-cure adhesive;
D O I：
10.1016/j.joen.2008.06.016
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
The aim of this study was to evaluate the kinetics of conversion of Scotchbond Multi-purpose Plus (3M ESPE, St Paul, MN) and Prime&Bond NT (Dentsply De Trey, Konstanz, Germany) used in light-cured, self-cured, or dual-cured versions. The adhesive systems were used in the light-cured version (without the use of chemical initiator) or mixed with its respective chemical initiator either with light activation (dual-cured) or not (self-cured). The degree of conversion (DC) was monitored as a function of time during 5 minutes with a Fourier transform infrared spectrometer equipped with an attenuated total reflectance device. Light-cured and dual-cured modes of Scotchbond Multi-purpose Plus presented the highest DC at 5 minutes. The addition of the self-cure activator (dual-cured mode) to Prime&Bond NT reduced the DC. For the self-cured versions, only the Scotchbond Multi-purpose Plus presented any polymerization reaction at 5 minutes. For the two bonding systems tested, it appears that light curing of the adhesive is important in order to reach a high DC in the first moments after the bonding procedure.
引用
收藏
页码：1115 / 1118
页数：4
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