Laser-assisted Icon and clinpro for restoring white spot lesions: an in vitro comparative study

Managing white spot lesions (WSLs) remains a challenging issue that has yet to be fully resolved. WSLs are areas of demineralized enamel that most commonly occur following orthodontic treatments. They can potentially lead to enamel caries and are also esthetically undesirable. The current study investigated and analyzed the effects of Icon resin infiltration (Icon) and Clinpro XT varnish (Clinpro), both alone and in combination with a diode laser, on the restoration of WSLs. Color change, microhardness, and scanning electron microscopy were used to evaluate the WSLs after the different treatment applications. Results showed that the combination of Icon and Clinpro, along with a diode laser, enhanced color stability and restoration of enamel hardness in white spot lesions. Utilizing a diode laser significantly improved the efficacy of both Icon and Clinpro therapies. SEM examination verified that laser-assisted treatments resulted in almost total blockage of enamel rods, indicating enhanced effectiveness. Conclusions: Integrating diode laser treatment with Icon and Clinpro XT Varnish has significantly improved the esthetic outcomes and mechanical properties of treated enamel.