Invisalign is a popular orthodontic treatment that uses clear, removable aligners to straighten teeth. Invisalign dentists in Ajax are specially trained and experienced in using this innovative treatment to help patients achieve a straighter, more beautiful smile. Invisalign aligners are made of a clear, comfortable plastic that is virtually invisible when worn. Patients typically wear their aligners for 20-22 hours a day, removing them only to eat, brush, and floss. Every few weeks, patients receive a new set of aligners that gradually shift their teeth into the desired position.