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Year : 2012  |  Volume : 1  |  Issue : 2  |  Page : 40-45

Mesiodistal tooth width and tooth size discrepancies of Yemeni Arabians: A pilot study

1 Department of Orthodontics, Ibb University, Yemen, Department of Orthodontics and Pediatric Dentistry, Taibah University, Saudi Arabia
2 Department of Oral Biological Sciences, Course for Oral Life Science, Niigata University, Graduate School of Medical and Dental Sciences, Niigata, Japan

Correspondence Address:
Talat Al-Gunaid
Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Taibah University, PO Box: 2898, Madinah
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-0203.99760

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Objectives: The aims of this study were to determine the mean mesiodistal tooth size width and Bolton's anterior and overall ratios, find any possible sex differences, and study the frequency of tooth size discrepancies among Yemeni population and if there is a difference in tooth size between the right and left sides. Materials and Methods: 176 subjects aged 13-25 years (94 females and 82 males) with different types of malocclusions (94 Angle Class I, 37 Class II division 1, 36 Class II division 2, and 9 Class III) were included in the present study. The mean mesiodistal tooth size width and Bolton's ratios were determined. Results: The results showed that males had significantly larger teeth than females. The prevalence rates of clinically significant discrepancy greater than 2 SD were 29.53% and 14.20% in the anterior and overall tooth size ratios, respectively. Further, the results revealed that there were no significant differences in the tooth size width between right and left sides. Conclusion: The findings of the present study indicate that there was no significant difference between Bolton's ratio and that of Yemeni population.

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