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DOI: http://dx.doi.org/10.21088/ijfmp.0974.3383.10217.3

Abstract

  Age estimation is one of the prime factors employed to establish identity. It is possible to arrive at a close estimation of age in children by studying the eruption pattern of the deciduous and permanent teeth. Subjects from different ethnic and socioeconomic groups present different stages of maturation, with remarkable genetic variations in the order of appearance of tooth. Hence there is a need to study the chronology and sequence of tooth eruption for the different populations [2]. In the present study, students from three different schools, belonging to different socioeconomic status were examined to present a new data on the timing and sequence of eruption permanent tooth. A total of 2925 students were selected for the study after ascertaining their exact age from the records. The mean age of eruption of permanent maxillary teeth is as follows: First molar (6.9 ± 0.7 years), Central incisor (7.8 ± 0.8 years), Lateral incisor (8.8 ± 0.8 years), First premolar (10.7 ± 1.0 years), Second premolar (11.5 ± 0.9 years), Canine (11.6 ± 0.9 years) and Second molar (12 ± 0.8 years). The mean age of eruption of permanent mandibular teeth is as follows: First molar (6.3 ± 0.8 years), Central incisor (7.5 ± 0.8 years), Lateral incisor (7.9 ± 0.7 years), Canine (10.8±0.8years),First premolar(11.1 ± 0.5 years), Second premolar (11.8 ± 0.8 years) and Second molar (11.9 ± 0.7 years). The mandibular teeth tended to erupt earlier than the corresponding maxillary teeth in both sexes except the premolars.

Keywords: Age; Children; Eruption; Mandibular; Maxillary; Permanent Teeth.

Corresponding Author : Dr. Anil R. Pandey, Assistant Professor, Department of Forensic Medicine, Karpagam Faculty of Medical Sciences and Research, Othakkalmandapam, Coimbatore - 641032 Tamil Nadu, India.