Abstract

Research Article

Influence of retreatment in the formation of dentinal microcracks in mandibular molars filled with a calcium silicate based sealer

Luciana da Cruz Ribeiro Jorge, Fabiola Ormiga, Aline Neves, Ricardo Tadeu Lopes and Heloisa Gusman*

Published: 09 April, 2021 | Volume 5 - Issue 1 | Pages: 001-004

Introduction: In endodontically treated teeth, dentinal defects such as microcracks can progress to a vertical root fracture and lead to tooth loss.

Objective: The present study aimed to evaluate, by micro-computed tomography analysis, the formation of dentinal microcracks during filling removal in endodontic retreatment of root canals filled with gutta-percha and Total Fill BC bioceramic sealer.

Methods: Twenty mesial roots of mandibular molars were instrumented and obturated with gutta-percha and Total Fill BC sealer and then the filling material was removed with rotary Protaper Retreatment files. The specimens were scanned before instrumentation, after filling and after retreatment. The transversal images obtained after filling were compared with the images obtained after removal of the filling material. A descriptive statistical analysis was performed.

Results: Among the 24.444 cross-sections analyzed, 5.67% presented some type of dentinal defect, with 0.51% in the initial images, 2.58% in the post-filling images and 2.58% in the post-retreatment images. All the dentinal defects identified in the images obtained after the retreatment were already present in the corresponding images after the filling. New dentinal microcracks were not observed after removal of the filling material.

Conclusion: Retreatment of mesial roots of mandibular molars filled with a silicate-based root canal filling material do not influence the formation of dentinal microcracks.

Read Full Article HTML DOI: 10.29328/journal.jcad.1001023 Cite this Article Read Full Article PDF

Keywords:

Micro-CT; Root canal filling; Retreatment; Bioceramics; Dentinal microcracks

References

  1. Pitts DL, Natkin E. Diagnosis and treatment of vertical root fractures. J Endod. 1983; 9: 338-346. PubMed: https://pubmed.ncbi.nlm.nih.gov/6579193/
  2. Tsesis I, Rosen E, Tamse A, Taschieri S, Kfir A. Diagnosis of vertical root fractures in endodontically treated teeth based on clinical and radiographic indices: a systematic review. J Endod. 2010; 36: 1455-1458. PubMed: https://pubmed.ncbi.nlm.nih.gov/20728708/
  3. Sathorn C, Palamara JE, Messer HH. A comparison of the effects of two canal preparation techniques on root fracture susceptibility and fracture pattern. J Endod. 2005; 31: 283-287. PubMed: https://pubmed.ncbi.nlm.nih.gov/15793385/
  4. De-Deus G, Silva EJ, Marins J, Souza E, Neves AA, et al. Lack of causal relationship between dentinal microcracks and root canal preparations with reciprocation systems. J Endod. 2014; 40: 1447-1450. PubMed: https://pubmed.ncbi.nlm.nih.gov/25146030/
  5. De-Deus G, Belladonna FG, Marins JR, Silva EJNL, Neves AA, et al. On the causality between dentinal defects and root canal preparation: A Micro-CT Assessment. Braz Dental J. 2016; 27: 664-669. PubMed: https://pubmed.ncbi.nlm.nih.gov/27982176/
  6. De-Deus G, Belladonna FG, Souza EM, Silva EJ, Neves Ade A, et al. Micro-computed Tomographic Assessment on the Effect of ProTaper Next and Twisted File Adaptive Systems on Dentinal Cracks. J Endod. 2015; 41: 1116-1119. PubMed: https://pubmed.ncbi.nlm.nih.gov/25817212/
  7. Bayram HM, Bayram E, Ocak M, Uygun AD, Celik HH. Effect of ProTaper Gold, Self-Adjusting File, and XP-endo Shaper instruments on dentinal microcrack formation: a micro–computed tomographic study. J Endod. 2017; 43: 1166-1169. PubMed: https://pubmed.ncbi.nlm.nih.gov/28476466/
  8. Oliveira BP, Câmara AC, Duarte DA, Heck RJ, Antonino ACD, et al. Micro–computed tomographic analysis of apical microcracks before and after root canal preparation by hand, rotary, and reciprocating instruments at different working lengths. J Endod. 2017; 43: 1143-1147. PubMed: https://pubmed.ncbi.nlm.nih.gov/28416304/
  9. Mandava J, Yelisela RK, Arikatla SK, Ravi RC. Micro-computed tomographic evaluation of dentinal defects after root canal preparation with HyFlex EDM and Vortex Blue rotary systems. J Clin Exper Dent. 2018; 10: 844-851. PubMed: https://pubmed.ncbi.nlm.nih.gov/30386515/
  10. Aksoy Ç, Keriş EY, Yaman SD, Ocak M, Geneci F, et al. Evaluation of XP-endo Shaper, Reciproc Blue, and ProTaper Universal NiTi systems on dentinal microcrack formation using micro–computed tomography. J Endod. 2019; 45: 338-342. PubMed: https://pubmed.ncbi.nlm.nih.gov/30803543/
  11. De-Deus G, Belladonna FG, Silva EJNL, Souza EM, Carvalhal JCA, et al. Micro-CT assessment of dentinal micro-cracks after root canal filling procedures. Int Endod J. 2017; 50: 895-901. PubMed: https://pubmed.ncbi.nlm.nih.gov/27689844/
  12. Yilmaz A, Helvacioglu-Yigit D, Gur C, Ersev H, Kiziltas Sendur G, et al. Evaluation of dentin defect formation during retreatment with hand and rotary instruments: a micro-CT study. Scanning. 2017; 24: 4868603. PubMed: https://pubmed.ncbi.nlm.nih.gov/29109814/
  13. Olcay K, Ataoglu H, Belli S. Evaluation of related factors in the failure of endodontically treated teeth: A cross-sectional study. J Endod. 2018; 44: 38-45. PubMed: https://pubmed.ncbi.nlm.nih.gov/29246376/
  14. Zuolo A, Zuolo ML, da Silveira Bueno CE, Chu R, Cunha RS. Evaluation of the Efficacy of TRUShape and Reciproc File Systems in the Removal of Root Filling Material: An Ex Vivo Micro-Computed Tomographic Study. J Endod. 2016; 42: 315-319. PubMed: https://pubmed.ncbi.nlm.nih.gov/26709199/
  15. Ma J, Al-Ashaw AJ, Shen Y, Gao Y, Yang Y, et al. Efficacy of ProTaper Universal Rotary Retreatment system for gutta-percha removal from oval root canals: a micro-computed tomography study. J Endod. 2012; 38: 1516-1520. PubMed: https://pubmed.ncbi.nlm.nih.gov/23063227/
  16. Candeiro GTDM, Correia FC, Duarte MAH, Ribeiro-Siqueira DC, Gavini G. Evaluation of radiopacity, pH, release of calcium ions, and flow of a bioceramic root canal sealer. J Endod. 2012; 38: 842-845. PubMed: https://pubmed.ncbi.nlm.nih.gov/22595123/
  17. Hess D, Solomon E, Spears R, He J. Retreatability of a bioceramic root canal sealing material. J Endod. 2011; 37: 1547-1549. PubMed: https://pubmed.ncbi.nlm.nih.gov/22000460/
  18. Wang Y, Liu S, Dong Y. in vitro study of dentinal tubule penetration and filling quality of bioceramic sealer. PLoS One 2017; 13: e0192248. PubMed: https://pubmed.ncbi.nlm.nih.gov/29390037/
  19. Almeida BC, Ormiga F, de Araújo MC, Lopes RT, dos Santos BC, et al Influence of heat treatment of nickel-titanium rotary endodontic instruments on apical preparation: a micro-computed tomographic study. J Endod. 2015; 41: 2031-2035. PubMed: https://pubmed.ncbi.nlm.nih.gov/26478439/
  20. Pradeep Kumar AR, Shemesh H, Archana D, Versiani MA, Sousa-Neto MD, et al. Root canal preparation does not induce dentinal microcracks in vivo. J Endod. 2019; 45: 1258-1264. PubMed: https://pubmed.ncbi.nlm.nih.gov/31421915/
  21. Çanakçi BC, Ustun Y, Er O, Genc Sen O. Evaluation of Apically Extruded Debris from Curved Root Canal Filling Removal Using 5 Nickel-Titanium Systems. J Endod. 2016; 42: 1101-1104. PubMed: https://pubmed.ncbi.nlm.nih.gov/27179592/
  22. Wulandari A, Usman M, Nilakesuma Djauharie RAH, Putrianti A. Comparison of root canal wall cleanliness in retreatment using rotary and reciprocal movement. J Int Dental Med Res 2019; 12: 880-885.
  23. Horvath SD, Altenburger MJ, Naumann M, Wolkewitz M, Schirrmeister JF. Cleanliness of dentinal tubules following gutta-percha removal with and without solvents: a scanning electron microscopic study. Int Endod J. 2009; 42: 1032-1038. PubMed: https://pubmed.ncbi.nlm.nih.gov/19825038/
  24. Jani A, Nikhil V, Bansal P. Effect of root canal preparation, obturation and retreatment on the induction of dentinal microcracks: a microcomputed tomography study. J Conserv Dent. 2018; 21: 521-525. PubMed: https://pubmed.ncbi.nlm.nih.gov/30294114/
  25. De-Deus G, César de Azevedo Carvalhal J, Belladonna FG, Silva EJNL, Lopes RT, et al. Dentinal microcrack development after canal preparation: a longitudinal in situ micro–computed tomography study using a cadaver model. J Endod. 2017; 43:1553-1558. PubMed: https://pubmed.ncbi.nlm.nih.gov/28735793/
  26. De-Deus G, Cavalcante DM, Belladonna FG, Carvalhal J, Souza EM, et al. Root dentinal microcracks: a post-extraction experimental phenomenon? Int Endod J. 2019; 52:857-865. PubMed: https://pubmed.ncbi.nlm.nih.gov/30549297/
  27. Arashiro FN, De-Deus G, Belladonna FG, Cavalcante DM, Coelho MS, et al. Dentinal microcracks on freshly extracted teeth: the impact of the extraction technique. Int Endod J. 2020; 53:440-446.

Similar Articles

Recently Viewed

Read More

Most Viewed

Read More