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Apically extruded debris using passive ultrasonic irrigation associated with different root canal irrigants
Department of Restorative DentistryArruda-Vasconcelos, Rodrigo; Department of Restorative DentistryBarbosa-Ribeiro, Marlos; Department of Restorative DentistryLouzada, Lidiane Mendes; Department of Restorative DentistryMantovani, Giovanna Dornelas; Department of Restorative DentistryGomes, Brenda PFA.
  • Department of Restorative DentistryArruda-Vasconcelos, Rodrigo; Universidade Estadual de Campinas. Division of Endodontics. Department of Restorative DentistryArruda-Vasconcelos, Rodrigo. Piracicaba. BR
  • Department of Restorative DentistryBarbosa-Ribeiro, Marlos; Universidade Estadual de Campinas. Division of Endodontics. Department of Restorative DentistryBarbosa-Ribeiro, Marlos. Piracicaba. BR
  • Department of Restorative DentistryLouzada, Lidiane Mendes; Universidade Estadual de Campinas. Division of Endodontics. Department of Restorative DentistryLouzada, Lidiane Mendes. Piracicaba. BR
  • Department of Restorative DentistryMantovani, Giovanna Dornelas; Universidade Estadual de Campinas. Division of Endodontics. Department of Restorative DentistryMantovani, Giovanna Dornelas. Piracicaba. BR
  • Department of Restorative DentistryGomes, Brenda PFA; Universidade Estadual de Campinas. Division of Endodontics. Department of Restorative DentistryGomes, Brenda PFA. Piracicaba. BR
Braz. dent. j ; 30(4): 363-367, July-Aug. 2019. tab
Article in English | LILACS | ID: biblio-1011565
ABSTRACT
Abstract The present study evaluated the amount of apically extruded debris after chemo-mechanical preparation (CMP) associated with passive ultrasonic irrigation (PUI) using four different root canal irrigants, namely, 6% sodium hypochlorite (NaOCl), 2% chlorhexidine gel + saline solution (2% CHXg+SS), 2% chlorhexidine solution (2% CHXs) and SS alone. Sixty mandibular premolars with single straight root canals were selected and randomly assigned into 4 groups (n=15) according to the root canal irrigant used as follows G1 (PUI + NaOCl), G2 (PUI + CHXg+SS), G3 (PUI+CHXs) and G4 (PUI+SS). Reciproc® R25 files (25/.08) were used during CMP and the debris extruded from each tooth were collected in pre-weighted Eppendorf tubes and dried. The average weight of debris was assessed by using an analytical microbalance. Data were statistically analysed by using ANOVA and post-hoc Tukey's test (a=0.05). Debris extrusion was observed in all groups, irrespective of the root canal irrigating, with 2% CHXg + SS being associated with lower debris extrusion compared to other irrigants (p<0.05). No significant differences were observed between 6% NaOCl, 2% CHXs and SS. In conclusion, passive ultrasonic irrigation did not completely prevent apically extrusion of debris. PUI performed with 2% chlorhexidine gel + saline solution significantly minimized debris extrusion compared to 6% sodium hypochlorite, chlorhexidine solution and saline solution.
RESUMO
Resumo O presente estudo avaliou a quantidade de debris extruídos apicalmente após o preparo químico-mecânico (PQM) associado à irrigação ultrassônica passiva (IUP) em associação com quatro diferentes irrigantes - hipoclorito de sódio 6% (NaOCl), clorexidina gel 2% + solução salina (CLXg 2% + SS), solução de clorexidina 2% (CLXs 2%) e SS. Sessenta pré-molares inferiores com canais radiculares únicos e retos foram selecionados e aleatoriamente distribuídos em 4 grupos (n=15) de acordo com o irrigante utilizado G1 (IUP + NaOCl), G2 (IUP + CLXg + SS), G3 (IUP + CLXs) e G4 (IUP + SS). Limas Reciproc® R25 (25/.08) foram utilizadas durante o PQM e os debris extruídos de cada dente foram coletados em tubos Eppendorf pré-pesados e secos. O peso médio de debris foi avaliado através de microbalança analítica, e os dados foram analisados estatisticamente utilizando ANOVA e teste de Tukey post hoc (a=0.05). Extrusão de debris foi observada em todos os grupos, independente do irrigante. CHXg 2% + SS foram associados a menor extrusão de debris comparado aos demais irrigantes (p<0.05). Não foram observadas diferenças estatisticamente significativas entre NaOCl 6%, CLXs 2% e SS. Concluindo, irrigação ultrassônica passiva não preveniu completamente a extrusão apical de debris, entretanto, IUP realizada com CLXg 2% + SS minimiza significativamente a extrusão de debris comparado ao NaOCl 6%, CLXs 2% e SS.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Root Canal Irrigants / Root Canal Preparation Type of study: Controlled clinical trial / Risk factors Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Irrigants / Root Canal Preparation Type of study: Controlled clinical trial / Risk factors Limits: Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas/BR