The<unk> , or<unk> 's tubercle, or tuberculus anomalus of Georg<unk>  is a small additional<unk>  at the mesiolingual line angle of maxillary first molars. This<unk>  is entirely absent in some individuals and present in others in a variety of forms. In some cases,<unk> 's<unk>  may rival the main<unk> s in size. Other related forms include ridges, pits, or furrows. This additional<unk>  was first described in 1842 by Georg<unk> , a court dentist of the Austrian Empire|Austrian Emperor Franz.
The<unk>  is a heritable feature. Kraus (1951) proposed that homozygosity of a gene is responsible for a pronounced tubercle, whereas the heterozygote shows slight grooves, pits, tubercles or bulge. Later studies showed that the development of this trait is affected by multiple genes.<unk> 's<unk>  is most common among Europeans (75-85% of individuals) and rarest in Pacific Islands (35-45%).
Cusp of Carabelli
Rossmann fold
Albrecht Kossel
Cutaneos Horn
Genu valgum
Fordyce's spot
Cutis rhomboidalis nuchae
Surfer's Ear