Journal of Research in Dental and Maxillofacial Sciences
J Res Dent Maxillofac Sci
Medical Sciences
http://jrdms.dentaliau.ac.ir
1
admin
2383-2754
10.61186/jrdms
en
jalali
1399
12
1
gregorian
2021
3
1
6
1
online
1
fulltext
en
Discoloration of Vita Classical Shade Guide by Glutaraldehyde Disinfectant
Dental implant
Dental implant
Original article
Original article
<div style="text-align: justify;"><strong>Background and Aim:</strong> Shade guide discoloration after disinfection can interfere with the appropriate color selection for dental restorations. Since one of the most important issues for patients is the color of the final restoration, the discoloration of shade guides due to disinfectants will be important. Infection control is a definite and important matter in dentistry. Due to the contradictory results of studies on the effect of disinfectants on shade guide discoloration, this study aimed to examine the discoloration of the Vita classical shade guide by glutaraldehyde disinfectant. <br>
<strong>Materials and Methods:</strong> In this experimental study, samples of A4, B4, C4, and D4 colors were selected from the Vitapan classical shade guide, 10 pieces each (40 samples in total). Three samples of each color were immersed in distilled water as a control while the other seven were immersed in a 2% glutaraldehyde disinfectant solution. The shade pilot spectrophotometer was used for colorimetry, which was performed at baseline and 24, 48, and 72 hours after the immersion. The color of the samples was evaluated based on the CIE Lab system. The data were analyzed with two-way analysis of variance (ANOVA) and Tukey's test.<br>
<strong>Results:</strong> The rate of color change (ΔE) of the samples was higher in the glutaraldehyde group than in distilled water (P<0.05). In addition, color change in both groups showed a significant difference at different times (P<0.05).<br>
<strong>Conclusion:</strong> The Vitapan classical color samples discolor by immersion in 2% glutaraldehyde disinfectant after 24, 48, and 72 hours, but this color change is not clinically detectable (ΔE<1).<span dir="RTL"></span></div>
Color, Colorimetry, Dental Disinfectants, Discoloration, Dental Restorations, Spectrophotometry, Time Factors
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http://jrdms.dentaliau.ac.ir/browse.php?a_code=A-10-315-1&slc_lang=en&sid=1
E
KHodarahmi
10031947532846008025
10031947532846008025
No
Dentist
MH
Salari
10031947532846008026
10031947532846008026
No
Assistant professor, Prosthodontics Dept, Faculty of Dentistry, Tehran Medical Sciences
A
Azizi
10031947532846008027
10031947532846008027
No
Professor of oral medicine Dept, Faculty of Dentistry, Tehran Medical Sciences,
SH
Lawaf
Drshlawaf@yahoo.com
10031947532846008028
10031947532846008028
Yes
Associate Professor, Prosthodontics Dept, Member ship of Dental Material Research Center, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University , Tehran, Iran.