Abstract
Objective: To analyze the sealing ability of Mineral Trioxide Aggregate (MTA) and Portland Cement (PC) in furcation perforations of human molars through three techniques. Methods: Ninety upper and lower extracted human molars with formed roots and not fused were selected. Perforations were performed on the floors of pulpal chambers by means of spherical burs. Specimens were randomly divided into two experimental groups of forty-five teeth each, using PC for Group I and white MTA for Group II. Group I was divided into 3 subgroups, called IA, IB, IC with fifteen samples each. Group II was also divided into 3 subgroups, called IIA, IIB, IIC with fifteen samples each. The checks of infiltration were carried out through a stereoscope with 5X magnification. The Kruskall-Wallis and Mann-Whitney tests were used for statistical analysis. Results: The use of MTA and PC inserted by three different techniques did not prevent the occurrence of leakage into furcation of extracted human molars. It is also clear that the CP accommodated in furcation perforations through ultrasound had better performance. Conclusion: Further studies should be carried out to improve the performance of the sealing material for application in critical dental regions.
Highlights
Perforations in endodontics occur quite frequently and may involve up to 12.0% of teeth submitted to required endodontic treatment [1]
A study found marginal infiltration in a furcation perforation of extracted human molars sealed through three cement insertion techniques of Portland and mineral trioxide aggregate (MTA) types
The value of h=14.5718 and p=0.0007 for two degrees loose. This result shows that there was no statistical difference between the paper cone x ultrasound with Portland cement insertion techniques, as it can be seen in Table 2 and Figure 1
Summary
Perforations in endodontics occur quite frequently and may involve up to 12.0% of teeth submitted to required endodontic treatment [1]. The mineral trioxide aggregate (MTA) was conceived from observational analysis with the Portland cement (PC) This first material was conceived and developed to seal all communications between the root canal system and the external dental surface [2]. A study found marginal infiltration in a furcation perforation of extracted human molars sealed through three cement insertion techniques of Portland and MTA types. Those perforations where both cements were accommodated by inserts of ultrasound, the infiltration had lower scores when compared to those entered by vertical condensation and/or cotton pellet [10]
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