Assessment of apical seal obtained after irrigation of root end cavity with MTAD followed by subsequent retrofilling with MTA and Biodentine: An in vitro study

Abstract

Introduction:The present study is designed to assess the apical seal obtained after root end cavity irrigation with MTAD and retrograde filling with mineral trioxide aggregate (MTA) and Biodentine.Materials and Methods:Sixty extracted maxillary central incisors were instrumented and obturated. Apical 3 mm of all the roots were resected and retrograde preparations of 3 mm were made in all the teeth using ultrasonic tips. Thirty root end preparations were irrigated with MTAD for 5 min (Group 1), while 30 were irrigated with saline for 5 min (Group 2). Each main group was subdivided into two subgroups containing 15 samples each. Samples under each subgroup were then filled either with MTA (1A and 2A) or Biodentine (1B and 2B). The amount of microleakage was assessed using a UV spectrophotometer.Results:Statistical analysis suggest a significant difference (P < 0.005) between group 1A and 2A and between the groups 1B and 2B (P < 0.1). There was a significant difference (P < 0.005) between group 1A and 1B and also between group 2A and 2B.Conclusion:Irrigation with MTAD significantly improved the apical seal of Biodentine, but it increased the microleakage in MTA-filled root end cavities. Also the apical seal obtained with Biodentine was superior to that obtained with MTA.

Spectrophotometric analysis evaluating apical microleakage in retrograde filling using GIC, MTA and biodentine: an in-vitro study

“…However, in this study the least microleakage was exhibited by Biodentine although the difference was not statistically significant. The result of our study is in concurrence with the study conducted by Khandelwal A et al [23], Radeva E et al [24], Naik MM et al [25], Kokate SR et al [8] Comparing the sealing ability of MTA and Biodentine as root-end filling material Khandelwal A et al [23] concluded that Biodentine can be used as a replacement for MTA. The study by Radeva E et al [24] concluded that Biodentine can be more effective as apical sealing material compared to MTA.…”

“…The study by Radeva E et al [24] concluded that Biodentine can be more effective as apical sealing material compared to MTA. Naik MM 25 concluded that the apical seal obtained with Biodentine was superior to that obtained with MTA.…”

“…The rationale behind using two different burs is to determine the effect of smear layer on microleakage. Surgical smear layer in endodontics is defined as a smear layer, which contains microorganisms and necrotic pulpal tissues which is formed on the dentinal surfaces, cut by the instruments during apicoectomy and retrograde cavity preparation [25]. Citric acid, EDTA, 35% orthophosphoric acid and BioPure MTAD™ (mixture of tetracycline isomer, acid and detergent) have been recommended for the removal of surgical smear layer but in our study no attempt was done to remove it as the retrograde cavity was just irrigated with normal saline.…”

Spectrophotometric Analysis Evaluating Apical Microleakage in Retrograde Filling using GIC, MTA and Biodentine: An in-vitro study

“…Surgical smear layer in endodontics is defined as a smear layer, which contains microorganisms and necrotic pulpal tissues which is formed on the dentinal surfaces, cut by the instruments during apicoectomy and retrograde cavity preparation. 21 Citric acid, EDTA, 35% orthophosphoric acid and BioPure MTAD™ (mixture of tetracycline isomer, acid and detergent) have been recommended for the removal of surgical smear layer but in our study no attempt was done to remove it as the retrograde cavity was just irrigated with normal saline. The thickness of the smear layer is also affected by type of the bur used.…”

Comparison of the effectiveness of materials used as retrograde obturators in apical dental surgeries

“…En estudios más recientes como los realizados por Cárdenas S. en el año 2017 (11) , Ravichandra P. et al en el año 2014 (23) , Naik M et al en el año 2015 (20) y Nanjappa A. et al en el año 2015 (22) concluyeron que el Biodentine era más eficaz que el MTA. A diferencia de los resultados d este estudio donde el MTA se posiciona con el mayor nivel de eficacia, esto podría deberse a que el MTA surgió antes que el Biodentine y por ende, se lo estudió en más investigaciones.…”