Why Your Child's Permanent Teeth Are Jagged
By the age of about eight, most children have a full set of permanent incisors. These secondary teeth are among the first to erupt, along with first molars. Naturally, this means they receive a lot of attention, especially since they are also located in the smile zone. As a result, it doesn't take very long for children and their parents to notice the feature that is unique to incisors. Newly erupted permanent lateral and central incisors often have what looks like a serrated edge along the biting surface.