IADR Abstract Archives
Invasive Cervical Root Resorption (ICRR) Mapping using Mineral Density Assessment Tool of CBCT
Objectives: Invasive cervical root resorption (ICRR) is an uncommon, local, insidious and aggressive type of external root resorption, which affects teeth and may result with large loss of tooth structure unless proper treatment is initiated. Its etiology is poorly understood, but it is most frequently related to trauma, orthodontics, endodontics (intracoronal bleaching) and periodontal procedures. ICRR prediction and prevention are still unknown. Conventional radiographs do not detect the invasive lesion dimensions and therefore a cone beam computed tomography (CBCT) is essential. CBCT is a non-destructive tool allows longitudinal clinical diagnosis and can be applied to the pathologic diagnosis through mineral density (MD) assessment.
Methods: We performed Mineral Density (MD) evaluation of an infected tooth with ICRR lesion compared to a homologous healthy tooth in the following sites: Intact bone area ; Infected bone area near the port of entry (POE); infected enamel areas, coronal and radicular dentin areas and infected pulp areas counter to intact areas. In addition, the differences between cases where the POE site was located inside the alveolar bone were evaluated versus cases with POE outside of the bone area.
Results: There was a statistically significant difference between the MD values of healthy tooth tissues and the infected tooth tissues in the ICRR teeth within bone, enamel, coronal and radicular dentin and pulp sites. No statistically significant differences were recorded between the different tooth infected tissues in the ICRR teeth including: enamel, dentin (of all kinds) or pulp. Moreover, statistically significant differences were found in MD values between cases in which the POE was located inside compared to those located outside of the bone tissue.
Conclusions: MD index reflects specific mineral composition tissue. It can serve as a reliable measure to evaluate infected dental tissues in the ICRR affected teeth. Accurately mapping of the extension of the destruction process is possible by using CBCT for dictating tooth prognosis and treatment planning.
Methods: We performed Mineral Density (MD) evaluation of an infected tooth with ICRR lesion compared to a homologous healthy tooth in the following sites: Intact bone area ; Infected bone area near the port of entry (POE); infected enamel areas, coronal and radicular dentin areas and infected pulp areas counter to intact areas. In addition, the differences between cases where the POE site was located inside the alveolar bone were evaluated versus cases with POE outside of the bone area.
Results: There was a statistically significant difference between the MD values of healthy tooth tissues and the infected tooth tissues in the ICRR teeth within bone, enamel, coronal and radicular dentin and pulp sites. No statistically significant differences were recorded between the different tooth infected tissues in the ICRR teeth including: enamel, dentin (of all kinds) or pulp. Moreover, statistically significant differences were found in MD values between cases in which the POE was located inside compared to those located outside of the bone tissue.
Conclusions: MD index reflects specific mineral composition tissue. It can serve as a reliable measure to evaluate infected dental tissues in the ICRR affected teeth. Accurately mapping of the extension of the destruction process is possible by using CBCT for dictating tooth prognosis and treatment planning.