PMID- 32161855 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220413 IS - 2548-0839 (Electronic) IS - 2548-0839 (Linking) VI - 3 IP - 1 DP - 2018 TI - The Influence of Humidity on Intra-tubular Penetration and Bond Strength of AH Plus and MTA Fillapex: An In Vitro Study. PG - 48-54 LID - 10.5152/eej.2017.17036 [doi] AB - OBJECTIVE: The aim of this study was to evaluate the influence of humidity on the intra-tubular penetration, bond strength and failure mode associated with AH Plus (AH) and MTA Fillapex (MTAF) sealers. METHODS: For this analysis, an apparatus was created to maintain the humidity of the specimens. Sixty bovine single-rooted teeth with similar anatomy were used. The teeth were randomly divided into 4 groups (n=15): G1 - AH/moist, G2 - AH/dry, G3 - MTAF/moist and G4 - MTAF/dry. A laser scanning confocal microscope was used to analyse the penetrability of the sealers into the dentinal tubules. A push-out test was performed to examine the diameter and height of the root canal fillings. The failure mode was analysed under a stereomicroscope at 40x magnification. The data were submitted to non-parametric Kruskal-Wallis and Dunn's tests. The significance level was P<0.05. RESULTS: The MTAF sealer exhibited higher intra-tubular penetration values compared to AH Plus (P<0.05) sealer. AH Plus showed the highest bond strength values. Regarding the type of failure mode, a majority of cohesive failures was identified, irrespective of the moisture conditions, which were not statistically significant among the sealers (P<0.05). CONCLUSION: Humidity conditions did not influence the intra-tubular penetration, bond strength and failure mode of AH Plus and MTAF sealers. CI - Copyright: (c) 2018 European Endodontic Journal. FAU - Piazza, Bruno AU - Piazza B AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - Rivera-Pena, Melissa Esther AU - Rivera-Pena ME AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - Alcalde, Murilo Priori AU - Alcalde MP AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - de Vasconcelos, Bruno Carvalho AU - de Vasconcelos BC AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - Duarte, Marco Antonio Hungaro AU - Duarte MAH AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - de Moraes, Ivaldo Gomes AU - de Moraes IG AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. FAU - Vivan, Rodrigo Ricci AU - Vivan RR AD - Department of Operative Dentistry Endodontics and Dental Materials, University of Sao Paulo Bauru School of Dentistry, Bauru, Brazil. LA - eng PT - Journal Article DEP - 20171222 PL - Turkey TA - Eur Endod J JT - European endodontic journal JID - 101717480 PMC - PMC7024719 OTO - NOTNLM OT - Dentin OT - endodontics OT - humidity OT - material testing OT - root canal obturation COIS- Conflict of interest: No conflict of interest was declared by the authors. EDAT- 2017/12/22 00:00 MHDA- 2017/12/22 00:01 PMCR- 2017/12/22 CRDT- 2020/03/13 06:00 PHST- 2017/05/23 00:00 [received] PHST- 2017/06/14 00:00 [revised] PHST- 2017/08/03 00:00 [revised] PHST- 2017/09/29 00:00 [accepted] PHST- 2020/03/13 06:00 [entrez] PHST- 2017/12/22 00:00 [pubmed] PHST- 2017/12/22 00:01 [medline] PHST- 2017/12/22 00:00 [pmc-release] AID - EEJ-3-48 [pii] AID - 10.5152/eej.2017.17036 [doi] PST - epublish SO - Eur Endod J. 2017 Dec 22;3(1):48-54. doi: 10.5152/eej.2017.17036. eCollection 2018.