Nov 23, · The teeth that show the largest variation in shape are the upper lateral incisors. They can be peg shaped, shovel shaped, round instead of flat, have indentations, be extra short or extra small or extra narrow. In rarer circumstances, they can even be larger than the 2 front teeth. As an adult, a chipped or missing front tooth isn't as cute. Usually the result of some type of trauma, a chipped, cracked or accidental removal of your front tooth can leave you in pain and feeling self-conscious. With proper care, however, you won't have to deal with pain and embarrassment for long.