A cone-beam computed tomography (CBCT) scan helped identify a fifth canal in the first premolar of a man who was undergoing a root canal. This is the first reported case of a fifth canal in this type ...

The aim of this study was to compare mandibular form (i.e., size and shape) between patients with agenesis of the lower second premolar (P2) and a control group with no agenesis. Three hypotheses were ...

A new systematic review has found pit-and-fissure sealants to be effective regardless of tooth type or location. In fact, sealants on premolars may last longer and prevent more caries than those on ...

Teeth are called incisors, canines, premolars, and molars. Each type of tooth has a specific function, including biting, chewing, and grinding food. Teeth are made up of different layers — enamel, ...