Anterior crossbite correction time lapse video. This video show the correction of a crossbite of the lower left canine tooth and a correction of a deepbite. The results were achieved without the extraction of any teeth with the use of traditional orthodontic braces. The treatment mechanics included expansion of the dental arches, and interproximal reduction (IPR) of some of the lower teeth. Interproximal reduction is the technique of using a sanding disk in between some of the teeth to make the teeth slightly narrower. Typically, this reduced the width of the teeth by a few tenths of a millimeter per contact. This reduction stays well within the enamel of the teeth and patients do not have any sensitivity afterwards. Retention was with a fixed (bonded) retainer glued to the inside of the lower canine teeth and a removable retainer for the upper teeth. Check out our other patient education videos on our YouTube Channel.