The effectiveness of EDTA 17% as a cleaning solution for the fiber post space after filling with cements

Aim To evaluate the resistance of the union between a glass fiber post and radicular dentine after cleaning the root with 17% EDTA and filling with different endodontic cements. Methods Forty uniradicular bovine incisors were removed to obtain root lengths of 18 mm. Endodontic treatment was performed on all roots using different filling cements (zinc oxide and eugenol-based, OZE; cement based on epoxy resin, AH) and cleaning solutions (saline, SA or EDTA), which made it possible to obtain four groups: OZESA, OZEEDTA, AHSA and AHEDTA. Subsequently, 12 mm of filling material was removed from the roots, and they were prepared to receive fiber posts luted with resin cement. To execute the mechanical cycles (2x106 cycles, 90 N, 4 Hz), coronal reconstruction was performed with a silicon matrix. The roots were then sliced (2-mm thick) to perform the push-out test. The results were analyzed using analysis of variance (one factor and two factors) and Tukey’s test (α=0,05). Results Bond strength (Mpa) was significantly higher for OZEEDTA (9,18) and AHEDTA (8,70) than for OZESA (6,06) AHSA (8,7). OZEEDTA also presented the highest values in the cervical region (15,18) but was significantly lower in the apical region (2,99). However, AHEDTA had a homogeneous bond strength in all thirds. Conclusion Regardless of the endodontic cement used, EDTA was used as an irrigating solution, culminating in a higher bond strength between the glass fiber post and dentin.

Bibliographic Details

Main Authors:	Paula,Luciana Arruda Mendes de, Reis,Lohara Campos de Abreu, Miranda,Jean Soares, Verner,Francielle Silvestre, Junqueira,Rafael Binato, Carvalho,Rodrigo Furtado de
Format:	Digital revista
Language:	English
Published:	Faculdade de Odontologia de Piracicaba - UNICAMP 2023
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-32252023000100303
Tags:	Add Tag No Tags, Be the first to tag this record!