Micro-CT Analysis of the Root Canal Configuration of Maxillary Second Molars with Fusion

Purpose: The present study investigated the root canal configuration of maxillary second molars with fusion using micro-computed tomography (micro-CT).
 Materials & Methods: A total 136 fused were scanned tomography. Images transferred to CTAn v.1.18.8 software (Bruker-microCT) obtain three-dimensional models. specimens classified according type. According Vertucci, classification roots was determined CTVol v. 2.3.2.0 and DataViewer v.1.5.6 softwares. that could not be represented also specified. frequency type calculated.
 Results: For Type 1 (n=40) 2 (n=22), most common for mesiobuccal (MB), distobuccal (DB) palatal (P) canals I. In 3 (n = 21), DB P completely in sample accordance Vertucci IV, while remaining specimens, types II, I, V, VI IV observed decreasing order MB canal. 4 fusion, 21 showed VI, I III configurations. 17 samples, had VII configurations, V 7 samples 5 all displayed different 6 configurations classified. seen 9 19 a single canal.
 Conclusion: dominant DB, however, much more diverse either independently or when included fusion.