Comparative Evaluation of Root Canal Filling Quality Using Various obturation Techniques and Different Sealers: An In vitro CBCT Study

ABSTRACT A three dimensional well fitted root canal prevents percolation and micro leakage of periapical exudates into the root canal space, prevents reinfection, and creates a favorable biological environment for healing to occur. Voids created between the sealer and root canal wall possess difficulties in bonding and leads to endodontic failure. This study aimed to evaluated the root canal filling quality using different obturation techniques with different root canal sealers using CBCT. Sixty single rooted premolars were collected and standardized to a length of 12mm, instrumented and grouped into 2 groups based on obturation techniques employed as Group I- Single cone obturation, Group II- Lateral condensation technique and are further divided into 3 subgroups in each based on various sealers employed- AH plus, MTA Fillapex and i Root SP and quality of obturation (voids determination) was performed under CBCT. Among the tested groups single cone technique iRoot SP showed least number of voids and highest number of voids are seen in lateral compaction technique AH Plus. In LC technique least number of voids are seen with respect to i Root SP and highest for AH Plus sealer. In single cone technique least number of voids are seen with respect to iRoot SP and highest number of voids are seen in AH Plus sealer group. Keywords: AH plus sealer, MTA Fillapex, i Root SP, Cone Beam Computed Tomography