Abstract
•Efficacy of phototherapy in the adhesive bonding of different dental posts to root dentin were assessed.•Six in-vitro studies were included.•The mean shear bond strength for phototherapy ranged from 2.23 to 15.17 MPa.•Mean shear bond strength for control group ranged from 2.93 to 9.38 MPa.•Dentin to post bond strength was significantly enhanced by phototherapy.
The aim of the current systematic review was to evaluate the efficacy of phototherapy in the adhesive bonding of different dental posts to root dentin.
The outline of this systematic review followed the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) guidelines. Searches in both electronic and manual literature were performed in the main databases ‘MEDLINE’ and ‘EMBASE’ up to March 2019 using the following terms: (Phototherapy) AND (push out test) AND (bond strength) AND (post) OR (fibre) OR (metal) AND (smear layer).
Six in-vitro studies were included and processed for data extraction. All studies incorporated the use of fiber posts. The mean shear bond strength for test group ranged from 2.23 to 15.17 MPa while mean shear bond strength for control group ranged from 2.93 to 9.38 MPa. The wavelengths of diode lasers ranged from 660 to 2940 nm (nm). Power was reported in 5 studies ranging from 0.075 W to 3 W. All studies compared shear bond strength of phototherapy in the adhesive bonding of different dental posts to root dentin. In all the included studies, greater bond strength achieved by phototherapy compared to nonirradiated group.
Within the limits, this study shows that the dentin to post bond strength was significantly enhanced by phototherapy.