Mar 30, 2010 · Best Answer: The central incisors (front teeth) are on average 8.5 - 9.5 mm from the gumline to the biting edge (crown). The entire tooth (from root tip to biting edge) is on average 22- 25 mm. Source(s): dental hygienist 10 yrs. taught Dental Anatomy for dental hygienists for 5 Status: Open.
Next, the top four front teeth emerge. After that, other teeth slowly begin to fill in, usually in pairs -- one each side of the upper or lower jaw -- until all 20 teeth (10 in the upper jaw and 10 in the lower jaw) have come in by the time the child is 2 ½ to 3 years old.
Feb 17, 2014 · “Teeth that are too long look horsey, and teeth that are too short age you,” Dr. Rifkin says. “There’s usually a pleasing range of tooth exposure when you’re not smiling that’s usually between 1 to 3 millimeters. Unworn and youthful teeth are displayed when you’re not smiling.Author: Shellie Terry Benson.