This study explores whether clear aligners used in orthodontic treatment release very small plastic particles, known as microplastics, into the mouth. While aligners are made from safe medical-grade plastics, everyday use such as chewing, temperature changes, and saliva exposure may cause the material to gradually wear down. We will collect saliva samples from patients before starting aligner treatment and after several months of use to see if these particles can be detected. Advanced laboratory techniques will be used to identify and analyze any plastic particles present.

Our preliminary findings suggest that small plastic-related compounds may already be present in patients wearing aligners, but this study aims to confirm and better understand this in real clinical conditions. The goal is to determine how much exposure may occur and what types of materials are involved. This information will help improve the safety of orthodontic materials and guide future recommendations for both patients and providers.