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Photopolymerization of composite resin using the argon laser
1Dalhousie University, Faculty of Dentistry, Halifax, NS.
Journal (Canadian Dental Association)
|October 13, 1999
Summary
Argon lasers offer enhanced composite resin polymerization in dentistry, potentially improving material properties. However, concerns remain regarding increased shrinkage, brittleness, and marginal leakage with this advanced light-curing technology.
Area of Science:
- Dental Materials Science
- Biophotonics
- Polymer Chemistry
Background:
- The dental field increasingly uses light-cured composites.
- Research is exploring novel light sources for polymerization.
- Argon lasers are investigated for their optimal wavelength in composite curing.
Purpose of the Study:
- To evaluate the effectiveness of argon laser curing versus conventional light curing for dental composites.
- To compare the depth, degree, and physical properties of polymerized composite resins using different light sources.
Main Methods:
- Literature review comparing studies on argon laser curing and conventional light curing.
- Analysis of research data on polymerization depth, degree, and physical properties.
- Examination of reported drawbacks such as shrinkage and leakage.
Main Results:
- Argon laser curing shows potential for greater depth and degree of polymerization.
- Faster polymerization times are indicated with argon laser use.
- Enhanced physical properties of composite resins are reported with laser curing.
- Concerns exist regarding increased shrinkage, brittleness, and marginal leakage.
Conclusions:
- Argon lasers present a promising alternative for dental composite polymerization, offering significant advantages.
- Further research is necessary to fully understand and mitigate the potential disadvantages of laser curing.
- Dentists should stay informed about ongoing studies regarding this emerging dental technology.

