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Abstract
Objective: To determine the prevalence of
infraocclusion in primary molars of children
aged 7 and 8 in Valdivia, Chile.
Materials and methods: Descriptive
cross-sectional study. Children aged 7
and 8 were examined in educational
institutions in Valdivia. The presence
and severity of infraocclusion in primary
molars was evaluated using the Brearley
& McKibben classification. The chisquare
test was performed to establish statistical
differences between sex and presence of
infraocclusion. In addition, an ANOVA
test was used to establish differences
between infraocclusion location and
degree of severity. The level of statistical
significance was established at p <0.05.
Results: Of 359 children evaluated, 41.78%
had infraocclusion. As per degree of severity,
82.06% of cases were mild, 15.28% moderate
and 2.66% severe. No significant differences
were found between sex and presence
of infraocclusion. Statistically significant
differences appeared when assessing location
and degree of severity (p <0.05).
Conclusion: There is a high prevalence of
infraocclusion in children aged 7 and 8 in
Valdivia, Chile.
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