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[Two case reports of extraction with the upper central incisors]
Aichi Gakuin Daigaku Shigakkai Shi
|December 1, 1989
Summary
Extraction of upper central incisors is rare but may be necessary. Final tooth size adjustment is crucial for achieving good occlusion and esthetics after these rare extractions.
Area of Science:
- Dentistry
- Orthodontics
- Dental Morphology
Background:
- Extraction of upper central incisors is uncommon due to esthetic concerns.
- Indications include impaction, root resorption, abnormal morphology, severe caries, or trauma.
- Restorative and orthodontic treatments are often required post-extraction.
Observation:
- Two cases of Angle class I crowding with upper central incisor root resorption were presented.
- Case 1 involved an apical abscess, and Case 2 involved impacted canines.
- Both cases underwent extraction of upper central incisors and orthodontic alignment.
Findings:
- Tooth size discrepancies between upper and lower teeth led to spacing and occlusal disharmony.
- Case 1 showed an edge-to-edge anterior relationship (93.30% tooth ratio), outside one standard deviation.
- Case 2 achieved normal occlusion (92.13% tooth ratio), within one standard deviation.
Implications:
- Final tooth size adjustment is essential for successful functional and esthetic outcomes in upper central incisor extraction cases.
- Careful consideration of tooth size ratios is necessary to prevent occlusal disharmony.
- This highlights the importance of meticulous planning in complex orthodontic cases involving anterior tooth extraction.