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Related Experiment Videos

Standardizing interarch tooth-size harmony in a Syrian population.

Abduhl W Nourallah1, Christian H Splieth, Christian Schwahn

  • 1Department of Orthodontics and Pediatric Dentistry, Tichreen University, Lattakia, Syria.

The Angle Orthodontist
|February 2, 2006
PubMed
Summary

The Bolton analysis for tooth size harmony is applicable to Syrian populations. This study found similar anterior and overall ratios in Syrians compared to Bolton

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Area of Science:

  • Dentistry
  • Orthodontics
  • Dental Morphology

Background:

  • The Bolton analysis is a key tool for assessing intermaxillary tooth-size harmony.
  • Ethnic variations in Bolton ratios require investigation for broader clinical application.

Purpose of the Study:

  • To determine anterior and overall Bolton ratios in a Syrian population with harmonious permanent dentitions.
  • To compare these ratios with established Bolton and Michigan studies.

Main Methods:

  • Measurement of mesiodistal tooth widths from incisors to first molars in 55 Syrian patients (ages 11-22).
  • Calculation of anterior and overall Bolton ratios using Bolton's methodology.
  • Statistical analysis to compare ratios between sexes and with existing study data.

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Main Results:

  • Syrian sample anterior ratio: 78.99 ± 2.18; overall ratio: 92.26 ± 2.06.
  • No statistically significant sex-based differences were observed in the calculated ratios.
  • Results closely aligned with Bolton's original data but differed from the Michigan study's anterior ratio.

Conclusions:

  • The Bolton analysis is reliable for evaluating tooth-size harmony in Syrian and potentially broader Arabian populations.
  • Bolton's established ratios are transferable across different ethnic groups, supporting universal application.
  • Minimal variation suggests the Bolton analysis is a robust indicator of intermaxillary tooth-size relationships.