SP-25 The Unique and Complex Nature of Multiple Root Resorption

CE Hours: 1.5

Description: Multiple root resorption is a rare but clinically significant condition with a multifactorial and often elusive etiology. In this presentation, we explore the unique and complex nature of multiple root resorption through the detailed analysis of three distinct cases. Each case was examined using Cone Beam Computed Tomography (CBCT), and where available, further evaluated with high-resolution micro-CT and histology. Methodology: The extracted teeth underwent detailed structural analysis using a NanoTom high-performance scanner (GE Measurement and Control Solutions, Wunstorf, Germany). The internal and external structures were reconstructed and assessed using CTAn, CTvol, CTvox, and DataViewer software (Bruker micro-CT, Kontich, Belgium). Cellular and tissue analysis were performed by histological staining techniques, including paraffin sectioning, and hematoxylin-eosin staining. Results & Discussion: Although the cases demonstrated similar structural features, such as the presence of a pericanalar layer, the intensity, rate of progression, and underlying etiology varied. Histological sections revealed inflammation in some cases, while others showed fibro-osseous tissue and less aggressive resorptive activity. These findings reinforce the view that multiple root resorption is not a uniform condition, as it depends on various etiological and biological factors. Conclusions: These cases illustrate that not all cases of multiple root resorption are the same. They can be unique in terms of etiology and nature, and thus they should be considered as independent cases and dealt individually.

Learning Objectives:  

• Describe the importance of using a multimodular approach in the evaluation of multiple root resorption cases
• Identify similarities and differences between multiple resorption cases
• Identify etiology behind multiple resorption cases so as to optimize treatment planning and management of these cases.