Internal root resorption studied by radiography, stereomicroscope, scanning electron microscope and computerized 3D reconstructive method

• Published in: Dental traumatology 2002-06, Vol.18 (3), p.148-152
• Main Authors: Lyroudia, Kleoniki M., Dourou, Vasiliki I., Pantelidou, Ourania CH, Labrianidis, Theodoros, Pitas, Ioannis K.
• Format: Article
• Language: English
• Subjects: 3D reconstruction; Bicuspid - diagnostic imaging; Bicuspid - pathology; Bicuspid - ultrastructure; Cuspid - diagnostic imaging; Cuspid - pathology; Cuspid - ultrastructure; Dentin - diagnostic imaging; Dentin - pathology; Dentin - ultrastructure; Dentistry; Humans; Image Processing, Computer-Assisted - methods; Imaging, Three-Dimensional; inflammatory root resorption; internal resorption; Microscopy, Electron, Scanning; Plastic Embedding; progressive root resorption; Radiography; Root Resorption - diagnosis; Root Resorption - diagnostic imaging; Root Resorption - pathology; Tooth Cervix - diagnostic imaging; Tooth Cervix - pathology; Tooth Cervix - ultrastructure; Tooth Root - diagnostic imaging; Tooth Root - pathology; Tooth Root - ultrastructure; Videotape Recording
• ISSN: 1600-4469; 1600-9657
• DOI: 10.1034/j.1600-9657.2002.00012.x

– Aim and methology: Two cases of internal tooth resorption were examined. A mandibular premolar and a mandibular canine were studied after they were extracted using radiographs, a stereomicroscope (SM) and a scanning electron microscope (SEM). Lastly, 3D images of the sectioned teeth were obtained(3D). Results: Radiographically, internal root resorption was shown as a uniform radiolucency. By SM examination, an extensive destruction of dentin was seen, while, by SEM examination, a disappearance of dentinal tubules was clear. The 3D reconstructive method revealed a circumscribed, oval‐shaped defect that did not perforate the cemental layer. Conclusions: Internal root resorption is a rare remodeling process that can be studied using different experimental methods.