Sealing ability of two root-end filling materials at different retro-preparation lengths

Abstract

Purpose:The aim of the present study was to evaluate the sealing performance, expressed as microleakage (ML), of two root-end filling materials when used at different retro-preparation lengths. Methods: Fifty single-rooted human teeth were collected for the study. The teeth were cut at the cement-enamel junction and endodontic treatment was performed. Each root was cut at 3 mm from the apex and then stored in wet condition. The teeth were divided into three groups according to the retro-preparation length: control group (no retro-preparation); group 1 (retro-preparation of 3 mm); group 2 (retro-preparation of 9 mm). The teeth were equally allocated to either Biodentine or Super EBA treatment group. The teeth were immersed in 3% methylene blue dye solution for 24 h. The samples were split longitudinally and the depth of dye penetration was examined through light microscopy. Results: No significant statistical differences were found at different retropreparation lengths (P > 0.05). Differences were found between materials (P > 0.05). Conclusion: Biodentine showed significantly lower ML when compared to Super-EBA and no statistical significative differences were observed when samples were retro-prepared at 3 mm or 9 mm.

Bacterial sealing ability of calcium silicate-based sealer for endodontic surgery: an in-vitro study

“…The primary objective of surgical endodontic treatment is to eliminate unhealthy tissues and untreated apical ramifications to prevent the infiltration of bacterial biofilm and their by-products into the surrounding periapical tissues [ 1 ]. Achieving a tight apical seal at the junction of the conventional retrograde cavity and the root-end filling is cruical for successufl treatment outcomes [ 2 ]. While several products have been introduced as retrofilling materials over the years, the search for an ideal material remains ongoing.…”

Biofilm in Endodontics: In Vitro Cultivation Possibilities, Sonic-, Ultrasonic- and Laser-Assisted Removal Techniques and Evaluation of the Cleaning Efficacy

“…Typically, different irrigant solutions are used between instrumentation during orthograde as well as retrograde endodontic therapy [ 14 ], with the goal of removing bacteria in the endodontic lumen, dissolving the smear layer, and disinfecting the canals. Sodium hypochlorite (NaOCl) used alone or in combination with other disinfectants, such as EDTA, citric acid, chlorhexidine etc., represents the most used endodontic irrigant.…”

Effect of Endodontic Irrigating Solutions on Radicular Dentine Structure and Matrix Metalloproteinases—A Comprehensive Review

“…The role of microorganisms in root canal system infections and periradicular tissues is unequivocal as the pulp tissue necrosis process progresses, leading to periapical disease [ 1 ]. Hence, the prognosis of endodontic treatment is primarily dependent on adequate debridement of the root canal space to reduce and/or eliminate the microbes [ 2 ]. This objective is often achieved with the combination of mechanical instrumentation and the use of irrigating solutions [ 3 ].…”