Confocal Laser Scanning Microscopy Evaluation of the Effect of Lentulo Spiral and Ultrasonic Activation on Intra-tubular Sealer Penetration

Marwa E. Mohammed, Postgraduate MSc student, Department of Endodontic , Faculty of Dentistry, Mansoura University,35516, Mansoura, EgyptFollow
Alaa eldin Elshazli, Lecturer, Department of Endodontics, Faculty of Dentistry, Mansoura University, Egypt.
Amany E. Badr, Professor, Department of Endodontics, Faculty of Dentistry, Mansoura University, Egypt.

Article Type

Original Article

Section/Category

Endodontics

Abstract

Objective: To evaluate the effect of lentulospiral and ultrasonic activation on the intra-tubular AH plus sealer penetrationusing confocal laser scanning microscopy.Materials and Methods: Twenty extracted single-rooted teeth werecollected; teeth were prepared up to ProTaper finishing file F4 (size 40). Teeth were randomly divided into two maingroups (n=10 teeth) according to activation techniques. The AH plus sealer with rhodamine B was activated bylentulospiral in group 1 and Irrisafe ultrasonic tip in group 2. The root canals were obturated with a single gutta-perchacone (size F4). The roots were sectioned at 3, 6, and 9 mm levels from the apex and examined with confocal laserscanning microscopy. Statistical analyses were performed at a 5% significance level. Results: At the cervical third, thelentulospiral group had significantly higher means of maximum depth (828.2±274.1 μm) and percentage (49.72±8.96%) and area (2774.9±908.6 μm2) of sealer penetration (P<0.05). While the Irrisafe group had significantly higher meansof maximum depth (486.9±269.9 μm) and percentage (24.34±13.21 %) sealer penetration at the apical third (P<0.05).There was a positive correlation between the maximum depth (μm) and the area (μm2) of sealer penetration (P < 0.01and confidence of 99 %). Conclusions: Regarding sealer activation, lentulospiral performed better in the cervical regionwhile activated Irrisafe ultrasonic tip performed better in the apical region.

How to Cite This Article

Mohammed M E, Elshazli A , Badr A E. Confocal Laser Scanning Microscopy Evaluation of the Effect of Lentulo Spiral and Ultrasonic Activation on Intra-tubular Sealer Penetration. Mans J Dent. 2023; 10(1): 62-66.
Available at: https://doi.org/10.21608/mjd.2023.288119