4.6 Review

The Novel Role of Solvents in Non-Surgical Endodontic Retreatment

Journal

APPLIED SCIENCES-BASEL
Volume 12, Issue 11, Pages -

Publisher

MDPI
DOI: 10.3390/app12115492

Keywords

endodontics; filling materials; gutta-percha; irrigating solutions; non-surgical endodontic retreatment; sealer; solvents

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Non-surgical endodontic retreatment is a reliable conservative option for managing post-treatment apical periodontitis, but there is still uncertainty regarding effective microbial control. This article summarizes the current knowledge about specific solvent formulations targeting filling materials and highlights the advantages of additional irrigation steps to optimize disinfection.
Non-surgical endodontic retreatment is a reliable conservative option for managing post-treatment apical periodontitis. However, effective microbial control, based on the maximization of filling removal and disinfection protocols, is not yet predictable. Traditional gutta-percha solvents, which are indistinctively used for both the core and sealer filling materials, became obsolete due to unprecedented advances in endodontic technology. Nonetheless, microtomography, scanning electronic microscopy findings, and histobacteriological analysis tend to confirm the persistence of filling materials and the lack of association between root canal enlargement and superior disinfection. There is a controversy regarding the most suitable clinical protocols surrounding the shaping procedures and the supplementary disinfection steps. Based on the literature and the previous work of the team, the authors aimed to summarize the current knowledge regarding specific solvent formulations that target filling materials. Additionally, the advantage of an additional irrigation step to optimize disinfection was highlighted. This adjunctive procedure serves a dual role in the dissolution of filling materials, and in conferring an antibiofilm effect. Further research is needed to understand the novel contribution of these strategies upon clinical practice outcomes.

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