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Bolton tooth-size ratio revisited.
Tawfik Al-Tamimi1, Hayder A Hashim
1Habib Medical Center, Riyadh, Saudi Arabia.
World Journal of Orthodontics
|September 17, 2005
Summary
This study found no significant differences in tooth-size ratios between Saudi individuals and Bolton
Area of Science:
- Orthodontics
- Dental Anthropology
Background:
- Tooth-size ratios are crucial for diagnosing and treating malocclusions.
- Bolton's analysis provides standard ratios, but regional variations may exist.
Purpose of the Study:
- Establish tooth-size ratios in a Saudi population with Class I normal occlusion.
- Compare these ratios with Bolton's established data and between genders.
- Investigate the correlation between the interincisal angle and the anterior ratio.
Main Methods:
- Utilized dental casts and cephalometric radiographs from 65 Saudi subjects (18-25 years old) with Class I normal occlusion.
- Employed Student's t-test for ratio comparisons and Pearson's correlation for interincisal angle analysis.
Main Results:
- No statistically significant differences were found when comparing the Saudi sample's anterior and overall tooth-size ratios with Bolton's study values.
- No significant gender-based differences in tooth-size ratios were observed within the Saudi sample.
- A low correlation was found between the anterior ratio and the interincisal angle.
Conclusions:
- Bolton's prediction tables are applicable to the Saudi population for orthodontic treatment planning.
- Further research with larger Saudi samples is recommended to develop region-specific prediction tables.