Surface analysis of etched molar enamel by gas adsorption.

Abstract:

:Much research has been devoted to the study of etched enamel, since it is critical to bonding. Currently, there are no precise data regarding the etched-enamel specific surface area. The aim of this study was to characterize, by two different methods, the surface of human dental enamel in vitro after being etched. It was hypothesized that differences would be observed between specimens in terms of specific surface area and grade of etching. Sixteen third molar enamel samples were etched for 30 sec with 37% phosphoric acid prior to being viewed by SEM. Etched enamel surfaces were graded according to the Galil and Wright classification. The total surface area of etched samples was determined by the BET gas absorption method. A substantial variability in total surface area was observed between and among samples. A Pearson's Correlation Coefficient showed a lack of relationship between etch pattern and total surface area.

journal_name

J Dent Res

authors

Orellana MF,Nelson AE,Carey JP,Heo G,Boychuk DG,Major PW

doi

10.1177/154405910808700607

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

532-6

issue

6

eissn

0022-0345

issn

1544-0591

pii

87/6/532

journal_volume

87

pub_type

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