(TC48) Comparing Techniques to Differentiate Fiber Posts from Dentin in Root Canal Treated Teeth

In endodontic retreatment, distinguishing fiber posts from dentin in root canal-treated teeth is essential for precision during post-removal. Recognizing the fiber post boundaries early on can reduce the risk of unintentional dentin removal, thereby enhancing procedural safety and outcomes. This table clinic introduces three practical methods to improve visualization and facilitate more accurate post-differentiation. The first technique, methylene blue staining, is a straightforward approach that creates strong contrast, allowing the fiber post to be distinctly visible within the surrounding dentin. This simple method is beneficial for quick differentiation. The second method, using a cavity detector, leverages the differences in hardness and density to pinpoint the fiber post location, therefore minimizes the damage to surrounding dentin. The third technique, microscope visualization, provides high magnification and enhanced lighting, allowing for precise observation of fine structures and aiding clinicians in identifying the exact edges and contours of the fiber post. The purpose of this table clinic is to present these techniques, discuss optimal usage scenarios, and illustrate expected outcomes of methylene blue staining, cavity detector application, and microscope use in post-differentiation. These techniques help the clinician to simplify fiber post identification and removal, improving confidence and efficiency in retreatment procedures.