IntroductionDeciduous teeth eruption is connected to children's growth and development. In Brazil, with the increase in the occurrence of children born with microcephaly associated to exposure to Zika virus, studies about orofacial alterations were necessary.ObjectiveDescribe the chronology and sequence of deciduous teeth in children with microcephaly due to the fetal exposure to Zika virus.MethodologyA cross‐sectional study involving 74 children of a neuropediatric reference unit in Salvador, Bahia, in 2017 was conducted. Through use of secondary data, interviews with mothers and children's exam, the population was characterized, the chronology and sequence of deciduous teeth eruption was registered, and the analysis of the variables was proceeded.ResultsThe first eruption happened between 4 and 17 months of age and 52.70% had a delay in the eruption of incisors. The average eruption time for the maxilla varies from 17.92 (16.56‐19.28; 95% CI) to 20.43 (19.35‐21.51; 95% CI) months, and the jaw from 11.57 (6.85‐18.99; 95% CI) to 20.20 (19.09‐21.31; 95% CI) months. In 77.94% of population, the eruption of the first teeth was in the lower arch and in 33.82%, molars and/or canines erupted before the incisors.ConclusionsThere were alteration in the chronology and sequence of deciduous teeth eruption.
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