Document Detail


Enamel deproteinization and its effect on acid etching: an in vitro study.
MedLine Citation:
PMID:  19093646     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The goal of this in vitro study was to identify the topographical features of the enamel surface deproteinized and etched with phosphoric acid (H3PO4) compared to phosphoric acid alone.
MATERIALS AND METHOD: Ten extracted lower first and second permanent molars were polished with pumice and water, and then divided into 4 equal buccal sections having similar physical and chemical properties. The enamel surfaces of each group were subjected to the following treatments: Group A: Acid Etching with H3PO4 37% for 15 seconds. Group AH1: Sodium Hypochlorite (NaOCl) 5.25% for 30 seconds followed by Acid Etching with H3PO4 37% for 15 seconds. Group AH2; Sodium Hypochlorite (NaOCl) 5.25% for 60 seconds followed by Acid Etching with H3PO4 37% for 15 seconds. Results showed that group AH2 etching technique reached an area of 76.6 mm2 of the total surface, with a 71.8 mm2 (94.47%), type 1 and 2 etching pattern, followed by group AH1 with 55.9 mm2 out of 75.12 mm2 (74.1%), and finally group A with only 36.8 mm2 (48.83%) out of an area of 72.7 mm2. A significant statistical difference (P < 0.05) existed between all groups, leading to the conclusion that enamel deproteinization with 5.25% NaOCl for 1 minute before H3PO4, etching increases the enamel conditioning surface as well as the quality of the etching pattern.
Authors:
Roberto Espinosa; Roberto Valencia; Mario Uribe; Israel Ceja; Marc Saadia
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of clinical pediatric dentistry     Volume:  33     ISSN:  1053-4628     ISO Abbreviation:  J Clin Pediatr Dent     Publication Date:  2008  
Date Detail:
Created Date:  2008-12-19     Completed Date:  2009-02-27     Revised Date:  2013-05-20    
Medline Journal Info:
Nlm Unique ID:  9100079     Medline TA:  J Clin Pediatr Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  13-9     Citation Subset:  D    
Affiliation:
Department of Oral Rehabilitation, Health Science and Environmental Centre, Universidad de Guadalajara.
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MeSH Terms
Descriptor/Qualifier:
Acid Etching, Dental / methods*
Bicuspid
Dental Bonding / methods
Dental Enamel / drug effects,  ultrastructure*
Dental Enamel Proteins / drug effects*,  ultrastructure
Dental Materials / pharmacology*
Dentition, Permanent
Double-Blind Method
Humans
Image Processing, Computer-Assisted
Mandible
Phosphoric Acids / pharmacology*
Sodium Hypochlorite / pharmacology*
Surface Properties
Time Factors
Chemical
Reg. No./Substance:
0/Dental Enamel Proteins; 0/Dental Materials; 0/Phosphoric Acids; 7681-52-9/Sodium Hypochlorite; E4GA8884NN/phosphoric acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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