Degree of conversion and microhardness of bulk-fill dental composites polymerized by LED and QTH light curing units

ConclusionsThe polymerization efficacies of the two bulk-fill composites were different in terms of the depth of cure and type of light source. The DC and microhardness of the X-tra fill bulk-fill composite polymerized by either QTH or LED did not decrease up to a thickness of 4 mm. Thus, new generations of LED light sources are better options for polymerizing the bulk-fill resin composites than QTH.
Source: Journal of Oral Biosciences - Category: Biomedical Science Source Type: research