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Tooth size discrepancy in orthodontic patients with skeletal anterior open bite
Emad F Al Maaitah1, Nada Al-Madani1, Elham S Abu Alhaija2
1Department of Orthodontics, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
Clinical and Experimental Dental Research
|August 18, 2022
Summary
This study found that skeletal anterior open bite (AOB) is associated with minor differences in tooth size discrepancy (TSD) ratios, but the amount of AOB does not correlate with TSD. Males also exhibit smaller posterior teeth than females.
Area of Science:
- Dentistry
- Orthodontics
- Craniofacial Biology
Background:
- Tooth size discrepancy (TSD) and skeletal anterior open bite (AOB) are common orthodontic concerns.
- Understanding the relationship between TSD and AOB is crucial for effective treatment planning.
Purpose of the Study:
- To investigate the potential relationship between tooth size discrepancy (TSD) and skeletal anterior open bite (AOB).
- To assess the correlation between the severity of AOB and TSD ratios.
Main Methods:
- 100 Class I subjects (50 with AOB, 50 controls) were analyzed.
- Mesio-distal tooth widths were measured using digital calipers.
- Anterior, overall, and posterior TSD ratios were calculated; independent t-tests and Pearson correlation were used.
Main Results:
- Significant differences were found in anterior and posterior TSD ratios between AOB and control groups.
- Males had smaller posterior teeth than females in the normal bite and total sample groups.
- No significant correlation was observed between the amount of AOB and TSD ratios.
Conclusions:
- Skeletal AOB exhibits minor differences in anterior and posterior tooth sizes compared to normal occlusion, but these are within normal variation.
- Gender influences posterior tooth size, with males having smaller teeth.
- The degree of skeletal AOB is not correlated with tooth size discrepancy.
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