Next Article in Journal
The Fundamental Role of NOX Family Proteins in Plant Immunity and Their Regulation
Next Article in Special Issue
Human Saliva Collection Devices for Proteomics: An Update
Previous Article in Journal
Structural Characterization of Heme Environmental Mutants of CgHmuT that Shuttles Heme Molecules to Heme Transporters
Previous Article in Special Issue
Degree of Conversion and BisGMA, TEGDMA, UDMA Elution from Flowable Bulk Fill Composites
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Int. J. Mol. Sci. 2016, 17(6), 822; doi:10.3390/ijms17060822

The Effect of Hydrofluoric Acid Etching Duration on the Surface Micromorphology, Roughness, and Wettability of Dental Ceramics

1
Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, P. O. Box 10219, Riyadh 11433, Kingdom of Saudi Arabia
2
Dental Materials Science, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
3
Department of Biomaterials Science, Institute of Dentistry, University of Turku, Turku, FI-20520, Finland
4
City of Turku, Division of Welfare, Turku FI-20014, Finland
*
Author to whom correspondence should be addressed.
Academic Editors: Ihtesham ur Rehman and John G. Hardy
Received: 3 April 2016 / Revised: 28 April 2016 / Accepted: 20 May 2016 / Published: 27 May 2016
(This article belongs to the Special Issue Molecular Research on Dental Materials and Biomaterials)
View Full-Text   |   Download PDF [11801 KB, uploaded 27 May 2016]   |  

Abstract

The current laboratory study is evaluating the effect of hydrofluoric acid etching duration on the surface characteristics of five silica-based glass ceramics. Changes in the pore pattern, crystal structure, roughness, and wettability were compared and evaluated. Seventy-five rectangularly shaped specimens were cut from each material (IPS e-max™, Dentsply Celtra™, Vita Suprinity™, Vita mark II™, and Vita Suprinity FC™); the sectioned samples were finished, polished, and ultrasonically cleaned. Specimens were randomly assigned into study groups: control (no etching) and four experimental groups (20, 40, 80 and 160 s of etching). The etched surfaces’ microstructure including crystal structure, pore pattern, pore depth, and pore width was studied under a scanning electron microscope, and the surface roughness and wettability were analyzed using a non-contact surface profilometer and a contact angle measuring device, respectively. The results were statistically analyzed using one-way analysis of variance (ANOVA) and the post hoc Tukey’s test. The results showed a significant change in the pore number, pore pattern, crystal structure, surface roughness, and wettability with increased etching duration. Etching for a short time resulted in small pores, and etching for longer times resulted in wider, irregular grooves. A significant increase in the surface roughness and wettability was observed with an increase in the etching duration. The findings also suggested a strong association between the surface roughness and wettability. View Full-Text
Keywords: dental ceramics; lithium disilicate glass ceramics; acid etching; micromorphology; surface roughness; wettability dental ceramics; lithium disilicate glass ceramics; acid etching; micromorphology; surface roughness; wettability
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ramakrishnaiah, R.; Alkheraif, A.A.; Divakar, D.D.; Matinlinna, J.P.; Vallittu, P.K. The Effect of Hydrofluoric Acid Etching Duration on the Surface Micromorphology, Roughness, and Wettability of Dental Ceramics. Int. J. Mol. Sci. 2016, 17, 822.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top