Influence of Different Restorative Techniques on the Strength of Endodontically Treated Weakened Roots
Figure 1
Schematic diagram showing root weakening procedures. (a) Coronal 10 mm of prepared canal was overprepared using luscent helix reamers. (b) A specialized stainless steel bur with diameter 3 mm at the tip and 4.5 mm at body was used to enlarge the coronal 5 mm of previously overprepared canal.
