7 Lip Pits; Orthodontic Treatment, Dentition and Occlusion; Associated Skeletal Structures Samuel Berkowitz Lip Pits Pits of the Lower Lip in Cleft Lip and/or Palate – Genetic Considerations Frequency Pits of the lower lip such as fistulas of lower lip, paramedian sinuses of lower lip, humps of lower lip, or labial cysts are a very rare congenital malformation, first described by Demarquay in 1845 [1]. This minimally deforming anomaly is remarkable chiefly for its association with facial clefts. The fact that clefts that occur with lip pits seem to run stronger in families than clefts without lip pits has attracted the attention of professionals dealing with.
