- ProTaper universal retreatment files are designed to be used in sequence to remove filling materials, such as gutta-percha, carrier-based obturators and paste fillers. - ProTaper universal Retreatment files: - Designed to be used in sequence to remove filling materials. - Three easily identified files are designed for the different needs of infilling the canal before reshaping. - Each handle is no more than 11 mm for better visibility. - Assorted D1-D2-D3. **For further product information, please contact Chat Support**