A jagged tooth usually refers to the appearance of a jagged front incisor at the incisive end. If the patient is between 6 and 8 years old and the tooth is a newly replaced permanent incisor, the condition is considered physiological and no treatment is necessary. This is due to the fact that the newly grown tooth, itself, will have this condition. The incisor will have 3 growth lobes at the incisive end, and the 3 growth lobes growing out of the incisive end will have a typical serrated shape when it first erupts, specifically behaving like a W-shape, which is a completely normal 1 performance. Over time, this W-shaped abrasion will gradually reduce, which is actually like the tread pattern on our newly purchased tires. There is also 1 other condition, the jagged appearance of the incisors after adulthood This condition is mostly due to abrasion. A common case is the incisive melon tooth, this tooth is because the person often eat melon in a fixed 1 part and the incisive end jagged situation.