There are about 2671 clinical studies being (or have been) conducted in Bulgaria. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The aim of the study is to assess the viability and efficacy of carbon dioxide laser in combination with a fluoride varnish in the prevention, severity, and extent of white spot lesions during orthodontic treatment with fixed appliances.