Bioscience Journal (Mar 2023)

Effectiveness of ultrasonic activation associated to glycolic acid on smear layer removal, dentin structure and bond strength to root dentin

  • Matheus Albino Souza,
  • Julia Pommer dos Santos,
  • Luanda Tissiani,
  • Uillian Rauch Magalhães,
  • Karolina Frick Bischoff,
  • Rafaela Ricci,
  • Laura Teixeira Hoffmann,
  • Paula Cristine Ghiggi,
  • João Paulo De Carli,
  • Juliane Bervian,
  • Eduardo Gonçalves Mota,
  • José Antonio Poli de Figueiredo,
  • Huriel Scartazzini Palhano

DOI
https://doi.org/10.14393/BJ-v39n0a2023-65616
Journal volume & issue
Vol. 39
pp. e39037 – e39037

Abstract

Read online

This study evaluated the effects of ultrasonic activation (US) associated to glycolic acid (GA) on smear layer, dentin structure and bond strength (BS) of filling/restorative material to root dentin. The roots were used for antimicrobial activity, dentin structure and BS evaluation, being distributed into seven groups, according to irrigation protocols: G1:DW+US; G2:17% EDTA; G3:QMix; G4:17% GA; G5:17% EDTA+US; G6:QMix+US; G7:17% GA+US. Scanning electronic microscopy, transmission electronic microscopy and push-out were performed, with specific statistical analysis for each evaluation. The highest smear layer removal occured in Groups 6 and 7 (p0.05). The highest BS of filling and restorative material occurred in Groups 6 and 7, and Groups 5, 6 and 7, respectively, being similars between them (p>0.05). The use of GA+US promoted effective smear layer removal and dentin structure preservation, improving the BS of filling/restorative material to root dentin.

Keywords