Journal
MICROSCOPY AND MICROANALYSIS
Volume 20, Issue 1, Pages 245-256Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1431927613013639
Keywords
Raman; contact angle; potential; dentin; demineralization; remineralization
Categories
Funding
- CICOM/FEDER [MAT2011-24551, MAT2011-023339, JA-P08-CTS-3944]
Ask authors/readers for more resources
This study reports physical and chemical changes that occur at early dentin remineralization stages. Extracted human third molars were sectioned to obtain dentin discs. After polishing the dentin surfaces, three groups were established: (1) untreated dentin (UD), (2) 37% phosphoric acid application for 15 s (partially demineralized dentinPDD), and (3) 10% phosphoric acid for 12 h at 25 degrees C (totally demineralized dentinTDD). Five different remineralizing solutions were used: chlorhexidine (CHX), artificial saliva (AS), phosphate solution (PS), ZnCl2, and ZnO. Wettability (contact angle), potential and Raman spectroscopy analysis were determined on dentin surfaces. Demineralization of dentin resulted in a higher contact angle. Wettability decreased after immersion in all solutions. potential analysis showed dissimilar performance ranging from -6.21 mV (TDD + AS) up to 3.02 mV (PDD + PS). Raman analysis showed an increase in mineral components after immersing the dentin specimens, in terms of crystallinity, mineral content, and concentration. This confirmed the optimal incorporation and deposition of mineral on dentin collagen. Organic content reflected scarce changes, except in TDD that appeared partially denatured. Pyridinium, as an expression of cross-linking, appeared in all spectra except in specimens immersed in PS.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available