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Incisor root resorptions due to ectopic maxillary canines imaged by computerized tomography: a comparative study in
1Department of Oral and Maxillofacial Radiology, The Institute for Postgraduate Dental Education, Jönköping, Sweden. sune.ericson@telia.com
The Angle Orthodontist
|August 29, 2000
Summary
Computerized tomography (CT) scanning accurately detects maxillary incisor root resorption caused by erupting canines. This imaging technique shows high agreement with clinical assessments of root damage.
Area of Science:
- Dentistry
- Radiology
- Oral Surgery
Background:
- Ectopic eruption of canines can cause external root resorption in adjacent incisors.
- Accurate diagnosis of root resorption is crucial for treatment planning and prognosis.
- Traditional radiography may have limitations in visualizing subtle root defects.
Purpose of the Study:
- To evaluate the diagnostic capability of computerized tomography (CT) scanning.
- To assess CT's ability to differentiate root resorption in maxillary incisors.
- To determine if resorption is caused by adjacent ectopically erupting canines.
Main Methods:
- Seventeen maxillary incisors with potential resorption were examined using in vivo CT scanning.
- High-resolution, contiguous transverse CT scans (2 mm slice thickness) were acquired.
- Scans were analyzed for root resorption, graded by depth, and compared to extracted teeth.
Main Results:
- CT imaging demonstrated a high degree of agreement with in vitro clinical assessments.
- The technique accurately identified the extent of root substance loss.
- Comparison of CT images and physical examination of extracted teeth showed consistent findings.
Conclusions:
- Computerized tomography (CT) scanning is an accurate method for detecting tooth root resorption.
- CT provides reliable assessment of resorption extent when performed with proper technique.
- The study discusses artifacts associated with tooth root resorption on CT scans.