Abstract
The aim of this study was to evaluate and compare the sealing ability of two calcium silicate-based sealers (TotalFill BC RRM Fast Set Putty and White ProRoot MTA) when used as apical plugs in immature teeth through nuclear medicine. Single-rooted extracted teeth (n = 34) had their crowns and root tip sectioned to obtain 14 mm long root segments to simulate an in vitro apexification model. Were created two experimental groups, namely MTA (n = 12) and BC (n = 12), and two control groups, PG (positive group, n = 5) and NG (negative group, n = 5). On the 4th day after placing the respective apical plug, the apical portions of the teeth were submerged in a solution of sodium pertechnetate (99mTcNaO4) for 3 h. Statistical analysis showed a significant difference between the MTA group and the controls (p < 0.05). The BC group had a significant difference regarding the negative control (p < 0.001) but showed no statistical significance regarding the positive control (p = 0.168). There was a statistically significant difference (p = 0.009) between the BC group (7335.8 ± 2755.5) and the MTA group (4059.1 ± 1231.1), where the last showed less infiltration. Within the limitations of this study, White ProRoot MTA had a significantly better sealing ability than TotalFill BC RRM Fast Set Putty.
Highlights
The aim of the present study is to evaluate and compare the sealing ability of two calcium silicate-based sealers
The null hypothesis is that there are no significant differences in the sealing ability of the calcium silicate-based sealers White ProRoot mineral trioxide aggregate (MTA) and the TotalFill bioceramic root repair material used (BC RRM) Fast
The substantially higher leakage present in the positive control group compared to the other groups in the current study shows that in the absence of an apical plug, the solution of 99m TcNaO4 was capable of penetrating [38]
Summary
The complete development of such teeth is interrupted, which results in a compromised root formation that leads to an unreached final root length; thin root dentinal walls that are related to the presence of a wide canal space and open apex and resulting in an apical divergence causing the lack of an apical constriction. The divergent apical architecture and absence of apical constriction are the main factors of irrigants, intracanal dressings, and root canal fillings extrusion into the periapical soft tissues, making the complete debridement and control of the filling nearly impossible, compromising the long-term outcome of the treatment [4,5,6]
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