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Unerupted canine without median diastema
M Yamaoka1, K Furusawa, M Tanaka
1Oral and Maxillofacial Surgery Department II, Matsumoto Dental College, Shiojiri, Nagano, Japan.
Journal of Oral Rehabilitation
|June 1, 1997
Summary
The eruption of canine teeth can close diastemas. However, this study found unerupted canines, even horizontal or inverted ones, can also close diastemas, suggesting other mechanical forces are involved.
Area of Science:
- Dentistry
- Orthodontics
- Oral Surgery
Background:
- Diastema closure is often associated with canine tooth eruption.
- The exact mechanisms influencing diastema closure require further investigation.
Purpose of the Study:
- To assess changes in unerupted canine orientation.
- To investigate the relationship between unerupted canines and diastema closure.
Main Methods:
- Utilized orthopantomographs from 9854 patients (April 1984 - March 1993).
- Identified 38 unerupted canines in 32 patients aged 11+.
- Analyzed canine orientation (horizontal, inverted) and diastema status.
Main Results:
- No significant relation found between unerupted canine features and diastema closure.
- Some patients exhibited unerupted horizontal or inverted canines without diastema.
- This occurred even without prior orthodontic treatment.
Conclusions:
- Canine eruption is not the sole factor in diastema closure.
- Other mechanical forces may contribute to diastema closure.
- Further research is needed to identify these alternative mechanisms.