| Nanostructure evaluation of healthy and fluorotic dentin by atomic force microscopy before and after phosphoric acid etching. | |
| | |
MedLine Citation:
|
PMID: 21778600 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
The aim was to characterize by atomic force microscopy (AFM) the nanostructure of human dentin surfaces affected by dental fluorosis (DF) before and after phosphoric acid etching. This study included 240 human dentin samples classified according to the severity of DF, which were divided into four groups using the Thylstrup-Fejerskov Index (TFI). Samples were analyzed by AFM before and after acid etching for 15, 30, and 60 s. The roughness (R(a)) for healthy dentin, and dentin with mild, moderate, and severe fluorosis were 440 nm, 442 nm, 445 nm, and 449 nm, respectively. After 15, 30, and 60 s of acid etching, all healthy and fluorotic dentin samples increased in roughness (p<0.05). The diameter of dentinal tubule orifices (D(t)) in healthy human dentin increased after acid etching for 60 s. We conclude that effective etching times are 15 s for healthy and mild dentin fluorosis, 30-s for moderately fluorosed dentin, and 45-60 s for severe fluorotic dentin. |
| | |
Authors:
|
Veronica Zavala-Alonso; Rafael Aguilera-Flores; Nuria Patiño-Marin; Gabriel A Martinez-Castañon; Kenneth J Anusavice; Juan Pablo Loyola-Rodriguez |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-7-21 |
Journal Detail:
|
Title: Dental materials journal Volume: - ISSN: 1881-1361 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
|
Created Date: 2011-7-22 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8309299 Medline TA: Dent Mater J Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
The Master's Degree in Dental Science with Specialization in Advanced Education General Dentistry Program, Faculty of Dentistry at San Luis Potosi University. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Fracture load and failure analysis of zirconia single crowns veneered withpressed and layered cerami...
Next Document: Design of a new, multi-purpose, light-curing adhesive comprising a silane coupling agent, acidic adh...