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Retreatment of mesial roots of mandibular molars filled with resin-based and bioceramic sealers
Salim, Marina de Almeida; Ormiga, Fabiola; Lopes, Ricardo Tadeu; Gusman, Heloisa.
  • Salim, Marina de Almeida; Federal University of Rio de Janeiro. School of Dentistry. Department of Dental Clinic. Rio de Janeiro. BR
  • Ormiga, Fabiola; Federal University of Rio de Janeiro. School of Dentistry. Department of Dental Clinic. Rio de Janeiro. BR
  • Lopes, Ricardo Tadeu; Federal University of Rio de Janeiro. Technology Center. Department of Nuclear Instrumentation Laboratory. Rio de Janeiro. BR
  • Gusman, Heloisa; Federal University of Rio de Janeiro. School of Dentistry. Department of Dental Clinic. Rio de Janeiro. BR
Braz. j. oral sci ; 20: e210432, jan.-dez. 2021. ilus
Article in English | BBO, LILACS | ID: biblio-1254269
ABSTRACT

Aim:

The aim of this study was to evaluate, by micro-computed tomography (micro-CT) analysis, the remaining filling material during endodontic retreatment performed with Protaper retreatment without solvent.

Methods:

Forty mandibular molars were divided into two groups (n = 20) according to the sealer used in the obturation the bioceramic TotalFill BC (TF) or the resin-based AH Plus (AHP). The specimens were scanned before instrumentation, after obturation and after filling removal. Only the mesial roots were analysed. The filling volumes and the remaining filling material were calculated in the entire root canal and in the cervical, middle and apical thirds.

Results:

The volume of obturation and the volume of remaining filling material in the entire root canal and in the cervical, middle and apical thirds of the canal between the groups were not statistically different (independent t-test, p > 0.05). In the AHP group, there was a higher percentage of remaining filling material in the middle third than in the cervical third (p < 0.05).

Conclusion:

The filling material could not be entirely removed from any specimen
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Retreatment / X-Ray Microtomography / Molar Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Retreatment / X-Ray Microtomography / Molar Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Rio de Janeiro/BR