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Related Experiment Videos

Further observations on lower third molar tilt.

R V Tait

    British Journal of Orthodontics
    |October 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Early mesial migration of first permanent molars, following deciduous molar extraction, significantly reduces lower third molar tilt. This finding supports the hypothesis that early tooth movement impacts third molar angulation.

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    Area of Science:

    • Dentistry
    • Orthodontics
    • Oral Surgery

    Background:

    • Unilateral extraction of deciduous molars can lead to mesial migration of permanent molars.
    • The angulation of developing third molars may be influenced by adjacent tooth movement.

    Purpose of the Study:

    • To investigate the relationship between unilateral mesial migration of lower first permanent molars and the angulation of ipsilateral lower third molars.
    • To test the hypothesis that early mesial migration reduces third molar tilt.

    Main Methods:

    • Comparison of lower third molar angulation on orthopantographic radiographs.
    • Analysis of 50 cases with unilateral mesial migration of lower first permanent molars after deciduous molar extraction.
    • Paired t-test used for statistical analysis.

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    Main Results:

    • Lower third molars were less tilted on the side of extraction and subsequent mesial migration in 36 out of 50 cases.
    • The observed difference in angulation was statistically significant (p < 0.001).

    Conclusions:

    • Early mesial migration of lower first permanent molars is associated with reduced angulation of lower third molars.
    • This finding supports the hypothesis that mesial migration of posterior teeth influences third molar development and positioning.