If present, the cusp of Carabelli is located on which molar?

The cusp of Carabelli is a small additional cusp that may be present on the maxillary first molar. This anatomical feature is often found on the mesiolingual cusp of the tooth and is linked to genetic factors, as not everyone has this cusp. The maxillary first molar is known for its complex structure, with typically four main cusps and sometimes a fifth, which is the cusp of Carabelli. This cusp contributes to the overall function of the molar during mastication and is a distinguishing characteristic that can aid in the identification of the tooth.

In contrast, the other molars listed do not typically exhibit the cusp of Carabelli. The maxillary second molar may have a simpler cusp pattern, while both the mandibular first and second molars lack this specific anatomical feature altogether.