Time and sequence of eruption of permanent teeth in Spanish children

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ABSTRACT

Aim

AIM This was to investigate permanent teeth emergence in children and teenagers of Madrid (Spain) and to
compare the data with those reported in the literature.
MATERIALS AND METHODS Study design: cross-sectional descriptive study. This study comprises data from 752 children
and adolescents in Madrid (Spain). Sex, age and present permanent teeth were recorded.
RESULTS In our study permanent teeth eruption occurred between 6.99 and 12.45 years in girls and between 7.06 and 12.81
years in boys. Overall we found no statistically significant differences in the timing of emergence between homologous
contralateral teeth, however we noted that the lower arch teeth erupt before those of the upper arch and the eruption of
permanent teeth occurs earlier in girls than in boys. The sequence of tooth eruption differed in both jaws but was the same in
both sexes.
CONCLUSION Clinical examination of teeth is a simple tool to calculate tooth eruption intervals. These findings in a Spanish
population are relevant for different dental setting and should be periodically reconfirmed.

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