What is invisalign made of?

Invisalign is a brand of clear, removable aligners that are used to straighten teeth. The aligners are made from a thermoplastic material called SmartTrack, which is exclusive to the Invisalign brand. SmartTrack is engineered to provide a more comfortable and smoother fit than other clear aligner materials. It also allows for more effective tooth movement, which means that patients can achieve straighter teeth in a shorter amount of time. Invisalign aligners are custom-made to fit each patient's teeth and are changed every 1-2 weeks to gradually move teeth into the desired position. Invisalign aligners are nearly invisible, making them a popular choice for people who want to improve their smile without the stigma of traditional metal braces.