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In vitro analysis of extracted dens invaginatus using various radiographic imaging techniques
S Rajasekharan1, L Martens1, C Vanhove2
1Department of Paediatric Dentistry and Special Care, PaeCaMeD research, Ghent University.
European Journal of Paediatric Dentistry
|October 13, 2014
Summary
Conventional dental radiographs are insufficient for evaluating complex dens invaginatus (DI) malformations. Advanced imaging like micro CT provides superior detail for understanding these rare tooth anomalies.
Area of Science:
- Dentistry
- Oral Radiology
- Dental Anatomy
Background:
- Dens invaginatus (DI) is a rare developmental anomaly with diverse presentations.
- Accurate diagnosis and understanding of DI morphology are crucial for treatment planning.
Purpose of the Study:
- To compare the efficacy of conventional radiography, CBCT, MRI, and micro CT in analyzing complex DI root anatomy.
- To evaluate the diagnostic value of different imaging modalities for rare dental malformations.
Main Methods:
- In vitro radiographic analysis of three extracted maxillary lateral incisors with DI.
- Utilized conventional 2D digital radiography, cone-beam computed tomography (CBCT), magnetic resonance imaging (MRI), and micro CT.
Main Results:
- Conventional radiographs failed to reveal the relationship between invagination, oral cavity, and pulp chamber.
- CBCT and MRI offered complementary information but lacked the structural detail of micro CT.
- Teeth were classified using the Schulze and Brand system (A2, B3, B2).
Conclusions:
- Standard dental radiographs are inadequate for detailed assessment of DI due to geometric distortion.
- Micro CT provides the highest level of structural detail for complex DI cases.
- The Schulze and Brand classification system is more suitable for rare and atypical DI presentations than Oehlers system.
