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Kinetics of conversion of two dual-cured adhesive systems.
- Source :
-
Journal of endodontics [J Endod] 2008 Sep; Vol. 34 (9), pp. 1115-8. - Publication Year :
- 2008
-
Abstract
- 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.
- Subjects :
- Catalysis
Dental Equipment
Dental Stress Analysis
Hardness
Kinetics
Light
Materials Testing
Phase Transition
Polymethacrylic Acids radiation effects
Post and Core Technique
Resin Cements radiation effects
Spectroscopy, Fourier Transform Infrared
Structure-Activity Relationship
Adhesives chemistry
Dental Bonding
Polymethacrylic Acids chemistry
Resin Cements chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1878-3554
- Volume :
- 34
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Journal of endodontics
- Publication Type :
- Academic Journal
- Accession number :
- 18718377
- Full Text :
- https://doi.org/10.1016/j.joen.2008.06.016