Table 1.

Syndromes associated with tooth impaction and hyperdontia.²,²¹

Some systemic prenatal and postnatal disorders, diseases and syndromes causing to tooth impaction	Some syndromes associated with hyperdontia
Cleidocranial dysplasia	Apert syndrome
Gardner syndrome	Angio-osteohypertrophy Craniometaphyseal dysplasia
Down syndrome	Crouzon syndrome
Aarskog syndrome	Curtius syndrome
Zimmerman-Laband syndrome	Ehler-Danlos syndrome
Noonan’s syndrome	Fabry-Anderson Fucosidosis syndrome
GAPO syndrome	Hallermann-Streiff syndrome
Osteoglophonic dysplasia	Kippel-Trénaunay-Weber syndrome
Osteopathia striata	Nance-Horan syndrome
Osteopetrosis	Oral-facial-digital syndrome
Progeria	Sturge-Weber syndrome
Singleton-Merten syndrome	Tricho-rhino-phalangeal syndrome
Yunis-Varon syndrome
Nonhereditary pathoses such as endocrine disorders
Mucopolysaccharidoses