The College of Dentistry at the University of Baghdad participated in a research titled ‘Three-dimensional measurement for evaluating the quality of root filling materials in the treatment of internal root resorption cavities using various sealing techniques.’ This research was conducted by Assist.Prof.Dr. Ahmed Hamed Ali, Head of the Restorative and Cosmetic Dentistry Department, and Master’s student Ammar Muttashir. The study was published in the Journal of Endodontics in the United States, a publication of the American Association of Endodontists, ranked among the top ten dental journals worldwide.
The study aimed to evaluate and compare the quality of root fillings by measuring the percentage volume of the root filling material in root canals with artificially created internal root resorption cavities filled with various materials and techniques using cone-beam computed tomography (CBCT) three-dimensional imaging. The study involved laboratory work on extracted teeth using advanced computer programs to measure the accuracy level of root canal fillings in teeth with treated internal root resorption using various sealing techniques. These techniques included single cone, cold lateral condensation with gutta-percha, continuous wave compaction, and backfilling method. Three-dimensional radiographic imaging was used for indirect and non-destructive measurement of the teeth.
The results highlighted the importance, utility, and precision of three-dimensional measurement in assessing root canal fillings in teeth suffering from internal root resorption. It was found that some techniques were incapable of completely sealing the void created by internal resorption.
At the end, the study recommended the use of continuous wave ultrasonics, BioSil Repair material, and single cone technique, which makes their application in root canal obturation better than the lateral condensation technique.