A Comparison of the Curing Light and Composite Manufactures Guidelines Towards Adequate Polymerization of a High Viscostiy Hybrid Composite Utilizing A VALO LED Curing System
Abstract
The technology of curing lights has advanced to save the dentist as much time as possible. This has led to a conflict between what the composite manufacturerrecommends for curing time and what the curing light purports to allow you to do. Many curing lights claim to adequately cure composites in less than ten seconds but most composite manufacturers recommend more time than that. If a composite is not properly and adequately polymerized then the restoration will fail at a higher and more rapid rate. The objective of this paper is to evaluate the effectiveness of curing duration using a VALO LED curing light at 3200 mW/cm2 setting on 2 mm samples of TPH Spectra A3 hybrid composite. A statistically significant difference between the mean surface KHN of the top to bottom sides has a direct correlation to light duration. As the duration of the light increased, so did the hardness of the bottom layer. The only curing time that met the 0.80 bottom to top hardness ratio which shows adequate polymerization of a composite resin was the 20 sec light cure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 26, 2017
- Accession Number
- AD1063884
Entities
People
- Andrew J Callahan
Organizations
- Uniformed Services University of the Health Sciences