Supernumerary cusp

What it means

Additional cusps of a dental crown.

The crown is the part of the tooth that is visible in the oral cavity. Supernumerary cusps can occur on any tooth with cusps. Canines possess a single cusp, premolars two (bicuspid), and molars three to five cusps. Supernumerary cusps are frequently seen in patients with other dental anomalies. Prevalence varies by geographical region. A tubercle on the lingual surface of the maxillary first permanent molar is sometimes referred to as a Carabelli cusp. A supernumerary cusp on the lingual or palatal side of anterior teeth is called Talon cusp, and an additional cusp on the occlusal surface of a premolar is called Leung cusp.

Part of the broader category

Also called: Additional cusp · Extra cusp