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Related Experiment Videos

Canadian Eskimo permanent tooth emergence timing

J T Mayhall, P L Belier, M F Mayhall

    American Journal of Physical Anthropology
    |August 1, 1978
    PubMed
    Summary

    Canadian Inuit children show earlier permanent tooth emergence than Montreal children, with females ahead of males. Deciduous tooth extraction does not appear to advance permanent tooth eruption times.

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    Area of Science:

    • Anthropology
    • Dentistry
    • Human Biology

    Background:

    • Understanding tooth emergence patterns is crucial for assessing child development and dental health.
    • Previous research has suggested potential ethnic and environmental influences on dental development timelines.

    Purpose of the Study:

    • To determine the timing of permanent tooth emergence in Canadian Inuit children and adolescents.
    • To compare these emergence times with those of children in Montreal.
    • To investigate the relationship between deciduous tooth extraction and permanent tooth eruption.

    Main Methods:

    • A sample of 368 Canadian Inuit children and adolescents was examined.
    • The presence or absence of permanent teeth (excluding third molars) was recorded.
    • Probit analysis was used to analyze the emergence data.

    Main Results:

    • Inuit children exhibited statistically significant earlier permanent tooth emergence compared to Montreal children, with the exception of incisors.
    • Females generally showed advanced emergence times compared to males.
    • No evidence was found to support the hypothesis that premature deciduous tooth extraction accelerates permanent tooth emergence.

    Conclusions:

    • The timing of permanent tooth emergence in Canadian Inuit populations differs from that in Montreal populations.
    • Deciduous tooth eruption controls may continue to influence permanent tooth emergence, particularly for the first permanent teeth.
    • Further research is needed to fully elucidate the factors influencing permanent tooth emergence patterns.

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