Color stability of a nanofill composite: effect of different immersion media
J. appl. oral sci
;
17(5): 388-391, Sept.-Oct. 2009. tab
Article
in English
| LILACS
| ID: lil-531384
ABSTRACT
OBJECTIVE:
The aim of this in vitro study was to evaluate the color stability of a nanofill composite resin (Filtek Z350) in different immersion media. MATERIALS ANDMETHODS:
Twelve resin-based composite specimens were prepared using a silicon cylindrical mold measuring ≅1mm of thickness and ≅ 10mm of diameter. Specimens were light-cured for 40 s from both sides using a LED Radii at 1400 mW/cm² and were randomized into 4 groups (n= 3) according to immersion media coffee, yerba mate, grape juice or water (control solution). A digital spectrophotometer was used to evaluate the color changes at baseline and at 1-week after immersion in each solution. Specimens were stored in the different staining media for 4 h/day during 1 week. The color differences (DE) were analyzed by paired t-test and one-way ANOVA with complementary Tukey test (p<0.05).RESULTS:
After 1-week of immersion, a perceptive color change for the group stored in the grape juice compared to baseline (p=0.008) was observed. Coffee and yerba mate did not show any color changes visible for the human eyes or significantly different from the control group (p>0.05)CONCLUSIONS:
The findings of the present study suggest that the tested nanofill resin-based composite was susceptible to staining by substances present in the grape juice.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Composite Resins
/
Dental Materials
/
Coloring Agents
/
Nanocomposites
Type of study:
Controlled clinical trial
Limits:
Humans
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2009
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Paraíba/BR
/
Federal University of Pelotas/BR
Similar
MEDLINE
...
LILACS
LIS