2019, Number 3
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Rev Odont Mex 2019; 23 (3)
Comparison of sealing of the gutta-percha cone according to type of apical foramen in distal root canals of upper molars with two preparation systems
Gómez-Kasimoto SK, Tinedo-López PL, García-Rupaya CR
Language: Spanish
References: 34
Page: 131-138
PDF size: 240.98 Kb.
ABSTRACT
Introduction: The apical region is considered a critical area due to the abundance of microorganisms and the host’s immune response. From a clinical point of view, for endodontists it would be ideal if all or most of the infected tissue was eliminated from the root canal system and its foramina. For this reason, the preparation of a suitable apical stop allows the precise adaptation of asingle cone, promoting a hermetic seal of the root canal with minimum presence of obturator cement and lower filtration rates. The purpose of this investigation is to evaluate the apical seal in distal root canals of upper first molars after instrumentation with two preparation systems.
Material and methods: We carried out an experimental
in vitro study; the sample consisted of first upper molars divided into two groups according to two different preparation systems. The shape of the physiological foramen and the apical seal were evaluated after adapting the master cone into the foramen, using a digital microscope with 1000x magnification.
Results: The reciprocating system group obtained an ideal sealing in 73% of cases; the rotary system group obtained mostly an unacceptable sealing (68%), followed by satisfactory sealing (45%), and ideal sealing (26%).
Conclusion: A better sealing of the single cone was obtained with the reciprocating system, and it was associated with round shapes of physiological foramina.
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