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A Statistical Study of the Association of Seven Dental Anomalies in the Brazilian Population

2008; Chilean Society of Anatomy; Volume: 26; Issue: 2 Linguagem: Inglês

10.4067/s0717-95022008000200025

0717-9502

R. C. Miziara, Celso Teixeira Mendes‐Junior, Cláudia Emília Vieira Wiezel, Aguinaldo Luíz Simões, Jac Scuoteguazza, Reinaldo Azoubel,

Bone and Dental Protein Studies

The objective of this study was to show the association patterns among seven types of dental anomalies (second pre-molar agenesis, upper side incisive reduced in size, lower first molar infra-ochlesis, enamel hypoplasia, first molar ectopic eruption, supra numerous teeth and upper canine ectopic eruption) in a population sample without dental treatment ranging in age from 7 to 14.A total of 172 patients were attended and underwent the clinical examination at the Clínica Infantil da Fundação Educacional de Barretos.Eleven patients from this total were selected according to a first dental anomaly diagnosis and submitted to panoramic radiography.A significant association (p<0.05) was detected among six pairs of anomalies (second pre-molar agenesis x first pre-molar ectopic eruption; second pre-molar agenesis x lower first molar infra-ochlesis; second pre-molar agenesis x upper side incisive reduced in size; supra numerous teeth x reduced size upper side incisive; first pre-molar ectopic eruption x enamel hypoplasia; lower first molar infra-ochlesis x upper side incisive reduced in size) suggesting a common genetic origin for these conditions.The association was not significant in only one case where there was anomaly sharing by the patients.The existence of an anomaly is clinically relevant for early diagnosis of a possible association and an anomaly can indicate an increased risk of other anomalies.