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Related Experiment Videos

Clinical crown length changes from age 12-19 years: a longitudinal study.

L A Morrow1, J W Robbins, D L Jones

  • 1Restorative Dentistry, University Dental Hospital of Manchester, Higher Cambridge Street, M15 6FH, Manchester, UK. leean.morrow@man.ac.uk

Journal of Dentistry
|August 29, 2000
PubMed
Summary
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Clinical crown length increases throughout teenage years, influenced by age and gender. This passive eruption impacts treatment decisions for young patients needing anterior dental work.

Area of Science:

  • Dentistry and Orthodontics
  • Human Growth and Development

Background:

  • Clinical crown length is a key factor in orthodontic treatment planning.
  • Understanding age and gender influences on crown length is crucial for accurate assessments.

Purpose of the Study:

  • To investigate the relationship between age, gender, and clinical crown length.
  • To analyze longitudinal changes in crown height during adolescence.

Main Methods:

  • Examined 456 sets of study models from a longitudinal cohort study.
  • Measured clinical crown height of four specific teeth (11, 13, 22, 31) at ages 11-12, 14-15, and 18-19.
  • Utilized digital calipers for precise crown height measurements.

Main Results:

  • Significant age-related increases in crown length were observed for all four teeth studied (p<0.0001).

Related Experiment Videos

  • Gender significantly affected crown length in three of the four teeth examined.
  • Crown length significantly increased between each assessment period for the maxillary canine and incisors (p<0.0001).

    • Conclusions:

    • Passive eruption, leading to increased clinical crown length, continues through adolescence.
    • Findings are vital for clinicians treating teenagers and young adults with anterior dental issues.