Permanent teeth are the teeth that replace the deciduous or primary teeth. Permanent teeth are the replacement of the primary teeth (baby teeth). Permanent teeth are the 2nd and last set of teeth that humans can have during their lifetime. These teeth are more calcified and stronger than the deciduous teeth (baby teeth) because they are designed to function for a lifetime.
Permanent teeth consist of:
- Four upper and four lower incisors: There are central incisors and lateral incisors. These function to cut food, articulate speech, provide appearance, and support the lips.
- Canines: Two upper and two lower. In humans, they function along with the incisors for the support of the lips, cutting or shearing of food, and to guide post in occlusion. In traditional restorative dentistry, they are the cornerstones of the dental arch. Posterior Teeth (Back Teeth)
- Premolars: Also known as bicuspids. There are four in the upper arch and four in the lower arch. They function like molars in the mastication of food and in maintaining the vertical dimension of the dental arch.
- Molars: There are six upper and six lower molars, designated as first, second, and third molars. Permanent molars are important in the chewing and grinding of food and in maintaining the vertical dimension. Upper molars have three roots and lower molars have two roots.