1. Primary failure of eruption: a possible cause of posterior open bite;Proffit;American Journal of Orthodontics,1981
2. The adaptive alveolar process;Ballard;Annals of the Royal College of Surgeons,1966
3. Submerged first permanent molars;Brenchley;Dental Practitioner,1960
4. Idiopathic failure of eruption of permanent molar teeth;Kaban;Oral Surgery,1976
5. Familial reinclusion of permanent molars;Bosker;Clinical Genetics,1978