1. Hypodontia: 1;Goodman;Dent Update,1994
2. Reported prevalence of congenitally missing teeth in two Norwegian counties;Nordgarden;Community Dent Health,2002
3. Anodontia: a review of its etiology with presentation of a case;Werther;Am J Orthod,1939
4. Hypodontia in the permanent dentition;Hunstadbraten;J Dent Child,1973
5. Dental anomalies of number, form and size: their prevalence in British schoolchildren;Brook;J Int Assoc Dent Child,1974