The effect of final irrigation with MTAD, QMix, and EDTA on smear layer removal and mineral content of root canal dentin

Microscopy Research and Technique
Dajana Nogo-ŽivanovićIrena Tanasković

Abstract

To compare the smear layer removal ability and mineral content of root canal dentine after initial irrigation with NaOCl and final irrigation with MTAD, QMix, and 17% EDTA. Forty extracted human maxillary incisors before root canal preparation and irrigation with NaOCl were randomly divided into four groups (n = 10) according to the type of final irrigants used: MTAD, QMix, 17% EDTA, and control (sterile distilled water). Scanning electron microscopy (SEM) was used to assess the presence of smear layer. SEM energy-dispersive X-ray spectroscopy was used to quantify dentin mineral composition in MTAD, QMix, 17% EDTA group, and in no-treatment samples (no-treatment group; n = 10). Among the various chelating agents, there were no significant differences in the smear layer removal in the middle and coronal thirds (p > .05). In the apical third, QMix removed significantly more smear layer than 17% EDTA (p < .05), but similarly to MTAD (p > .05). Final irrigation with MTAD resulted in a significant increase in the carbon (C) value compared to EDTA (p < .001). There was no significant difference in the mineral composition between the MTAD and the QMix group, although the values of the mineral elements were significantly altered in the...Continue Reading

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Citations

Jun 21, 2020·Clinical Oral Investigations·Ayhan EymirliAhmet Serper
Aug 26, 2020·Restorative Dentistry & Endodontics·Margaret Soo Yee ChiaIsabel Cristina Celerino de Moraes Porto
Jun 27, 2020·Scientific Reports·Felipe de Souza MatosMarcia Carneiro Valera
May 4, 2021·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Felipe de Souza MatosCamilla Christian Gomes Moura

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