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Cure behaviour of visible light-activated pattern materials.
- Source :
-
International Endodontic Journal . May1999, Vol. 32 Issue 3, p191-196. 6p. - Publication Year :
- 1999
-
Abstract
- Aim This study tested the hypothesis that the cure behaviour (depth of cure and polymerization contraction) of light-activated pattern materials was no worse than that of light-activated composite resins, allowing them to be handled in a similar fashion. Methodology Depth of cure was measured by a penetrometer method. Results Cure depths were comparable to those of composite resins, ranging from 3.52mm (Lumin-X paste) to 6.76mm (Visioform) after visible lightactivation for 30s. There were significant differences in the depth of cure of the three materials tested (P0.001). Polymerization contraction was assessed by a minimal load transducer method. Values ranged from 0.45% (Lumin-X paste) to 1.89% (Visioform), lower than that of composite resins. There were significant differences in the polymerization contraction values for each of the three materials (P0.001). Conclusions It was concluded that light-activated pattern materials cure in a manner comparable to composite resins, and may be built up incrementally in a similar fashion. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DENTAL resins
*ENDODONTICS
Subjects
Details
- Language :
- English
- ISSN :
- 01432885
- Volume :
- 32
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- International Endodontic Journal
- Publication Type :
- Academic Journal
- Accession number :
- 6102977
- Full Text :
- https://doi.org/10.1046/j.1365-2591.1999.00213.x