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Time-temperature profiles of post-cure composite ovens
M A Loza-Herrero1, F A Rueggeberg
1Restorative Sciences Department, School of Dentistry, University of Puerto Rico, USA.
General Dentistry
|July 17, 1998
Summary
Post-cure heating improves resin composite properties. This study found significant differences in time-temperature profiles among commercial devices, impacting composite strength.
Area of Science:
- Dental Materials Science
- Polymer Chemistry
Background:
- Post-cure heating enhances physical properties of light-activated resin composites.
- Numerous commercial devices and techniques exist for post-cure heating.
Purpose of the Study:
- To analyze time-temperature profiles of various commercial post-cure heating devices.
- To compare the biaxial flexure strength of resin composite after post-cure heating with different devices.
Main Methods:
- Evaluation of time-temperature characteristics of selected commercial post-cure devices.
- Measurement of biaxial flexure strength of a resin composite material subjected to different post-cure heating protocols.
Main Results:
- Significant variations were observed in the time-temperature delivery among the tested commercial post-cure devices.
- The biaxial flexure strength of the resin composite differed based on the specific post-cure device used.
Conclusions:
- Commercial post-cure devices exhibit non-uniform time-temperature performance.
- Device selection for post-cure heating can influence the final biaxial flexure strength of resin composites.