| Abstrakt: |
Aim: Endodontic treatment of mandibular second molars is challenging considering its complex morphology. The aim of this study is to analyze variations of root canal systems within mesial root of second mandibular molars and to classify them according to Vertucci. Materials and Methods: The research was conducted on CBCT scans from the archives of two radiology centers in the city of Zagreb. Out of a total 1,982 CBCT scans, 364 scans were analyzed showing second mandibular molars with completed growth and root development that were not endodontically treated and did not have external or internal root resorption. Also, teeth with anomalies such as radix entomolaris, paramolaris and C-shaped canals were excluded from the analysis. In addition to the age and gender of the patients, the number of root canals in the mesial root was recorded and they were classified according to Vertucci. Results: Out of total 364 scans, 402 second mandibular molars were found. According to the Vertucci classification, 12.19% of mesial roots of second mandibular molars belonged to type I, type II 39.80%, type III 1.24%, type IV 45.7%, type V 0.75%, type VI 0.50%, type VIII 0.25%.Mesial root morphology in second mandibular molar that would belong to type VII was not found. Morphology of mesial root in second mandibular molars showed considerable diversity, and most commonly found forms are type II and type IV. Conclusion: Given the numerous morphological features, characteristics and large percentage of roots whose canals merge in apical part, a thorough analysis of the endodontic space itself is required before starting endodontic treatment so that the outcome of the treatment is as predictable and successful as possible. [ABSTRACT FROM AUTHOR] |
