O uso de instrumentos mecanizados de niti adaptados para uso Manual na prática clínica de graduação em endodontia

Abstract

INTRODUCTION:The use of stainless steel manual files at the undergraduate level is still part of academic practice in the vast majority of Dentistry Courses throughout Brazil and several developing countries. Despite the superiority and constant advances of mechanized instrumentation in nickel-titanium (NiTi), to adhere to mechanized endodontics it is necessary to use endodontic motors, which requires investment by the proponent institutions or students. In 2020, the ED File® adapter cable arrived on the market, an endodontic cable with a “push button” system that allows the adaptation of any type of mechanized instrument for application as a manual instrument during the preparation of root canals. OBJECTIVES: The aim of this study was to report a series of clinical cases performed with mechanized NiTi instruments adapted for manual use with the ED File® adapter cable during the clinical practice of undergraduate Endodontics.METHODOLOGY:Three patients were treated at the teaching clinic of Centro Universitário UniGoyazes and underwent endodontic treatments in two visits both in single and multirooted teeth. In the first session, endodontic access, odontometry and initial exploration were performed with a K-type #15 manual instrument, manual chemical-mechanical preparation was performed with a mechanized ProDesign Logic® #25/.05 instrument coupled to the ED File® adapter cable, “Controlled Cutting Force” (FCC) technique, “crown-down”, 2.5% sodium hypochlorite as irrigating solution, intracanal medication with calcium hydroxide and temporary restoration. In the second session, obturation was performed using the #25/.05 single cone technique and provisional restoration.CONCLUSION:In the clinical practice of graduation in Endodontics, the use of mechanized NiTi instruments adapted for manual use through the ED File® adapter cable, using the FCC technique, "crown-down", allowed a better formatting of the root canal in terms of removal of contaminated dentin, the optimization of clinical time and the performance of endodontic treatments in molar teeth, considered complex at the graduation level, without the need of great financial investment, when compared to the cost of an endodontic motor.