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Clinical Oral Investigations

, Volume 23, Issue 2, pp 681–687 | Cite as

Micro-CT evaluation of different final irrigation protocols on the removal of hard-tissue debris from isthmus-containing mesial root of mandibular molars

  • Emmanuel João Nogueira Leal SilvaEmail author
  • Carla Rodrigues Carvalho
  • Felipe Gonçalves Belladonna
  • Marina Carvalho Prado
  • Ricardo Tadeu Lopes
  • Gustavo De-Deus
  • Edson Jorge Lima Moreira
Original Article
  • 299 Downloads

Abstract

Objectives

This study aimed to compare four final irrigation protocols (passive ultrasonic irrigation [PUI], EndoVac, Self-Adjusting File [SAF] and EasyClean) on the removal of accumulated hard-tissue debris (AHTD) from mesial canals of mandibular molars through microcomputed tomographic (micro-CT) analysis.

Materials and methods

Forty mesial roots of mandibular molars presenting isthmuses type I or III were scanned in a micro-CT device and instrumented up to Reciproc R40 instrument. After the completion of canal preparations, root canals of each group were submitted to a final rinse using 20 mL of solution (16 mL of 5.25% NaOCl and 4 mL of 17% EDTA) in a total time of 5 min according to one of the four final irrigation protocols (n = 10): PUI, EndoVac, SAF and EasyClean operated at reciprocating motion. The sample was scanned again after canal preparation and after the use of the final irrigation protocols, and the registered data sets were examined to evaluate the percentage of AHTD. Data were statistically compared using the Tukey test with a significance level set at 5%.

Results

All groups presented a decrease on the accumulation of hard-tissue debris after the use of the final irrigation protocols (P < 0.05). No significant differences in the removal of AHTD were observed among the final irrigation protocols (P > 0.05).

Conclusions

All final irrigation protocols showed the same effectiveness in the removal of AHTD. None of them was able to render mesial canals of mandibular molars completely free from packed debris.

Clinical relevance

This study highlighted that all final irrigation protocols (PUI, EndoVac, SAF, and EasyClean) promoted a similar removal of AHTD. However, none of the final irrigation protocols was able to render mesial canals of mandibular molars completely free from packed debris.

Keywords

Debris EasyClean Micro-CT Passive ultrasonic irrigation Root canal irrigation 

Notes

Acknowledgements

The authors deny any conflicts of interest related to this study. This study was partially funded by FAPERJ and CNPq.

Funding

This study was partially funded by FAPERJ.

Compliance with ethical standards

Conflict of interest

Emmanuel João Nogueira Leal Silva, Carla Rodrigues Carvalho, Felipe Gonçalves Belladonna, Marina Carvalho Prado, Ricardo Tadeu Lopes, Gustavo De-Deus, and Edson Jorge Lima Moreira declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

For this type of study, formal consent is not required.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Emmanuel João Nogueira Leal Silva
    • 1
    • 2
    Email author
  • Carla Rodrigues Carvalho
    • 1
  • Felipe Gonçalves Belladonna
    • 3
  • Marina Carvalho Prado
    • 1
  • Ricardo Tadeu Lopes
    • 4
  • Gustavo De-Deus
    • 3
  • Edson Jorge Lima Moreira
    • 1
  1. 1.Department of EndodonticsGrande Rio UniversityDuque de CaxiasBrazil
  2. 2.Department of Endodontics - Dental School - Grande Rio University (UNIGRANRIO)NiteróiBrazil
  3. 3.Department of EndodonticsFluminense Federal UniversityNiteróiBrazil
  4. 4.Nuclear Engineering ProgramFederal University of Rio de JaneiroRio de JaneiroBrazil

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