Invisalign is an alternative to traditional braces that uses clear, removable aligners to straighten teeth. It involves creating a 3D treatment plan and custom-made aligners that are changed every two weeks. The aligners are almost invisible, smooth and comfortable compared to wires and brackets. Treatment time is similar to braces but Invisalign allows the user to eat normally and have better oral hygiene. It can treat issues like crowded teeth, overbites and crossbites while providing confidence and dental health benefits over traditional fixed appliances.