Influência de diferentes sistemas reciprocantes na extrusão apical de debris em canais ovalachatados

• Ano de defesa: 2019
• Autor(a) principal: Marchiori, Monique
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Positivo; Brasil; Pós-Graduação; Programa de Pós-Graduação em Odontologia Clínica; UP
• Palavras-chave em Português: Odontologia; Canal radicular - Tratamento; Dor pós-operatória; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: https://repositorio.cruzeirodosul.edu.br/handle/123456789/2097

Introduction: The aim of this study was to evaluate the amount of debris extruded apically through the preparation of the channels using 3 different systems of reciprocating kinematics considering two different working lengths (0.0mm and 1.0mm below the foramen). Ninety inferior incisors were randomly divided into three groups: WaveOne Gold # 25.07 (WOG, Dentsply-Sirona, Ballaigues, Switzerland), ProDesign R # 25.06 (PDR, Easy Dental Equipment, Belo Horizonte, Brazil), X1 Blue # 25.06 (MK Life, Porto Alegre, Brazil). Extruded debris was collected and dried in pre-weighed Eppendorf tubes. Three consecutive weighings were performed for each tube and the mean was calculated. Data were analyzed using the Kruskal-Wallis test and Mann-Whitney U test at a significance level of 5%. Results: All the instruments tested caused extrusion of debris through the foramen without statistical difference between them. In CT 0.0mm there was significantly lower extrusion of debris than CT 1.0mm (P<0.05). The PDR instrument had the highest amount of extrusion of debris in the CT 1.0mm when compared with CT 0.0mm (P<0.05) and for the other instruments comparing CT 0.0mm and 1.0mm was statistically nonsignificant. Conclusion: Within the limitations of this in vitro study, all groups recorded extrusion of debris at some level. At the CT working length 1.0mm, regardless of the instruments, there was more extrusion of debris. The group of PDR instruments in CT 1.0mm showed higher extrusion of debris when compared to CT 0.0mm.