The chin is one of the defining focal features of the face. Retrogenia, also known as a weak or recessed chin, poses an aesthetic problem as it disturbs the balance and harmony of the face. It is the mandible which provides structure to the chin and determines its position. Retrogenia presents when the mandible is smaller in size (micrognathia) or set too far back (retrognathia).1 This underdevelopment is the most common growth disorder of the facial skeleton in Western Europe and is associated with an angle class two dental malocclusion, a convex profile and mandibular deficiency.2
Mandibular deficiency has many causes, from genetics to embryogenesis. The condition can occur in isolation or in association with congenital malformation syndromes. Depending on its severity, it can require orthodontic or a combination of orthodontic and surgical treatment.3 A recessed chin may be linked to…
