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:: Volume 24, Issue 2 (4-2012) ::
J Islam Dent Assoc Iran 2012, 24(2): 60-68 Back to browse issues page
Evaluation of Tooth Color Distribution in 20 to 30-Year-Old Patients of Shahid Beheshti University Related Centers in 1389
Zahra Jaberi-Ansari1, Keivan Saati 2
1- Associate Professor, Department of Operative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences. Tehran, Iran
2- Assistant Professor, Department of Operative Dentistry, School of Dentistry. Azad University. Tehran, Iran , keivan.saati@gmail.com
Abstract:   (8387 Views)
Background and Aim: Tooth color assessing is very important in esthetic dentistry. The aim of this article was to study tooth color prevalence of 20-30-year-old patients and also presentation of a simple method for color assessment .

Materials and Methods : One thousand fifty nonsmoker volunteers (501 men). In a light, distance and angle constant condition the left maxillary incisors were photographed with a digital camera (Canon G9) using a retractor. The pictures were studied with Adobe Photoshop CS5 software. The color of the middle 1/9 of the tooth was measured in L*a*b* system. In the exact above condition vita pan classical shade guide was photographed in direction of neutral background. These pictures were studied with Adobe Photoshop CS5 and L*a*b* average was measured for the middle 1/9 of each sample. After measurement of ∆E* for each person and vita pan classical shade guide, minimum ∆E* was chosen for each tooth as the color of that tooth. Finally, the effect of colored liquid drinks was assessed .

Results : The most popular findings were A3.5 (16.85%) A3 (14.85%) and B1, B2 (9.8%). The results of this study showed that the L* average in nonsmokers who drank colored liquids more than twice a day in comparison to noncolored liquid users was lower. The a* and b* average in this group was higher than noncolored liquid users .

Conclusion : The most common findings were A3.5 (16.85%) A3 (14.85%) B1, B2 (9 . 8%). Tooth color assessment with a digital camera and computerized study is simple and cheap but very sensitive .

Keywords: Spectrophotometry, Colorimetry, Dental photography
Full-Text [PDF 413 kb]   (1876 Downloads)    
Type of Study: Orginal | Subject: Restorative Dentistry
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Jaberi-Ansari Z, Saati K. Evaluation of Tooth Color Distribution in 20 to 30-Year-Old Patients of Shahid Beheshti University Related Centers in 1389. J Islam Dent Assoc Iran. 2012; 24 (2) :60-68
URL: http://jidai.ir/article-1-1204-en.html

Volume 24, Issue 2 (4-2012) Back to browse issues page
Journal of Islamic Dental Association of Iran


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