The age of eruption of the first and second permanent molar in Cameroon

Abstract

Background: The age of tooth eruption varies from one region to another and determines the efficient care of children. However, the data used in Cameroon are those of European countries. In seemed useful to us to determine the age of eruption of the
second permanent molars in Cameroun.

Materials and methods: We conducted a cross-sectional study on 644 children aged 3 to 15 years. They were classified in Five body mass index groups. Their weights and Height were measured. The intraoral examination was made. The independent t-test
allowed the comparison between dental eruption ages averages

Results: The minimum eruption age for the boys was 3 years old, the age maximum 15 years old with average age of (M=5.75±1.212) for the first molar, M=12.30±0.921 for the second molar. The minimum and maximum age for girls was respectively 3 and 14 years
with an average age of eruption and SD (standard deviation) M = 6.08 ± 0.973 for the first molar and M=12.18±0.804 for the second molar. The average ages were 5.6 years for the first permanent molar and 11.9 years for the second permanent molar with an
interval of 95% confidence. The average ages of the first and second permanent molars have was statistically significant (p=0.00) with body mass index

Conclusion: The mean age of eruption was 5.6years for the first permanent molars and 11.9 years for the second. Body mass indices influenced eruption ages of the sequences.