An electron microscopic evaluation of the enamel surface subsequent to various debonding procedures.

Abstract:

:In this study, enamel surface roughness was investigated following the use of various combinations of bonding agents, burrs and polishing procedures. Orthodontic brackets were bonded to 135 premolar teeth extracted from adolescents. Subsequent to debonding and finishing, the enamel surface was gold coated and examined in the scanning electron microscope. Each 200x photomicrograph was graded according to surface roughness and assigned to one of four selected standard grades. The use of different composites and different burs showed no significant effect on the finish of the enamel surface using Chi-square tests. Only two finishing procedures had a significant effect on surface roughness. The use of a Soflex disc followed by pumice slurry resulted in the roughest enamel surface and the use of pumice alone produced the smoothest enamel surface.

journal_name

Aust Dent J

authors

Howell S,Weekes WT

doi

10.1111/j.1834-7819.1990.tb05402.x

subject

Has Abstract

pub_date

1990-06-01 00:00:00

pages

245-52

issue

3

eissn

0045-0421

issn

1834-7819

journal_volume

35

pub_type

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