[1. Stamatiou J, Symons AL. Agenesis of the permanent lateral incisor: distribution, number and sites. J ClinPediatr Dent 1991;15:244-6.]Search in Google Scholar
[2. Sumiya Y. Statistic Study on Dental Anomalies in the Japanese. J AnthropolSci 1959;67:215-33.10.1537/ase1911.67.215]Search in Google Scholar
[3. Bergström K. An orthopantomographic study of hypodontia,
supernumeraries and other anomalies in school children between the ages of 8-9 years. An epidemiological study.Swed Dent J 1977;1:145-57.]Search in Google Scholar
[4. Rølling S. Hypodontia of permanent teeth in Danish schoolchildren. Scan J Dent Res 1980;88:365-9.10.1111/j.1600-0722.1980.tb01240.x]Search in Google Scholar
[5. Brook AH. A unifying aetiological explanation for anomalies of human tooth number and size. Arch Oral Bio 1984;29:373-8.10.1016/0003-9969(84)90163-8]Search in Google Scholar
[6. Aasheim B, Ogaard B. Hypodontia in 9-year-old Norwegians related to need of orthodontic treatment. Scand J Dent Res 1993;101:257-60.10.1111/j.1600-0722.1993.tb01115.x8248724]Search in Google Scholar
[7. Al Jamal GA, Hazza’a AM, Rawashdeh MA. Prevalence of dental anomalies in a population of cleft lip and palate patients. Cleft Palate Craniofac J 2010;47:413-20.10.1597/08-275.120590463]Search in Google Scholar
[8. Grahnén H. Hypodontia in the permanent dentition: a clinical and genetic investigation. Odont Revy 1956;7:1-100.]Search in Google Scholar
[9. Haavikko K. Hypodontia of permanent teeth. An orthopantomographic study. Suom Hammaslaak Toim 1971;67:219-25.]Search in Google Scholar
[10. Hunstadbraten K. Hypodontia in the permanent dentition. ASDC J Dent Child 1973;40:115-7.]Search in Google Scholar
[11. Yamasaki Y, Iwasaki T, Hayasaki H, Saitoh I, Tokutomi J, Yawaka Y et al. Frequency of congenitally missing permanent teeth in Japanese children. Jpn J Ped Dent 2010;48:29-39.]Search in Google Scholar
[12. Alvesalo L, Portin P. The inheritance pattern of missing, peg-shaped, and strongly mesio-distally reduced upper lateral incisors. ActaOdontolScand 1969;27:563-75.10.3109/000163569090263095262405]Search in Google Scholar
[13. Magnússon TE. Prevalence of hypodontia and malformations of permanent teeth in Iceland. Community Dent Oral Epidemiol 1977;5:173-8.10.1111/j.1600-0528.1977.tb01635.x268264]Search in Google Scholar
[14. Robertsson S, Mohlin B. The congenitally missing upper lateral incisor. A retrospective study of orthodontic space closure versus restorative treatment. Eur J Orthod 2000;22:697-710.10.1093/ejo/22.6.69711212605]Search in Google Scholar
[15. Wexler G. Missing upper lateral incisors: orthodontic considerations in young patients. Ann R Australas Coll Dent Surg 2000;15:136-40.]Search in Google Scholar