Effect of different beverages on the color stability and degree of conversion of nano and microhybrid composites.

Abstract:

:This study sought to evaluate the effects of different staining solutions on the colour stability of nanocomposites compared with microhybrid resin and to evaluate the degree of conversion of these two materials. Two different shades of two different composites were cured in polytetraflouroethylene disk rings. Coffee, tea and cola drinks were used as staining solutions, and distilled water was used as a control. Data were statistically analysed using a paired T-test with a significance level of 5%. Nano composite showed the highest degree of conversion (DC) values based on calculation of the bonded and free carbonyl peak intensities in the spectrum. The colour analysis showed that nanohybrid had the highest ΔE values when exposed to coffee solutions; they showed less color stability despite having a higher degree of conversion. Nano resin composite showed significantly higher discoloration than microhybrid composite.

journal_name

Dent Mater J

journal_title

Dental materials journal

authors

Al Kheraif AA,Qasim SS,Ramakrishnaiah R,Ihtesham ur Rehman

doi

10.4012/dmj.2011-267

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

326-31

issue

2

eissn

0287-4547

issn

1881-1361

pii

DN/JST.JSTAGE/dmj/2011-267

journal_volume

32

pub_type

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