Shade Matching by Dental Students

10.1563/828.1 ◽  
2006 ◽  
Vol 32 (5) ◽  
pp. 256-258 ◽  
Author(s):  
Sheldon Winkler ◽  
Kenneth G. Boberick ◽  
Kasia S. Weitz ◽  
Isaac Datikashvili ◽  
Robert Wood
Keyword(s):  
Dental Students ◽  
Identification Rate ◽  
Shade Matching ◽  
Shade Guide

Abstract Dental students achieved a high identification rate for darker shades (P14 and P24) on the Portrait IPN shade guide, which represent the highest chroma and lowest value in the grayish and reddish yellow hue groups. A high identification rate was also obtained for P32, representing the lowest chroma and highest value in the reddish gray hue group. The data suggest that dental students had the most difficulty determining the correct hue group for unmarked shade tabs. Incorrect responses tended to remain in the same value and chroma range but were selected in a different hue group.

The Influence of Dental Shade Guides and Experience on the Accuracy of Shade Matching

2016 ◽  
Vol 17 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Mohammadreza Nakhaei ◽  
Jalil Ghanbarzadeh ◽  
Samin Alavi ◽  
Sahar Amirinejad ◽  
Hamidreza Rajatihaghi
Keyword(s):  
Calculated Data ◽  
Color Difference ◽  
Dental Students ◽  
Influential Factor ◽  
Color Measurement ◽  
Mean Values ◽  
Factors Affecting ◽  
Shade Matching ◽  
The Mean ◽  
Shade Guide

ABSTRACT Aim There is limited and inconsistent information on some factors affecting visual shade selection. The aim of this study was to evaluate the influence of shade guide type and professional experience on shade-matching results. Materials and methods Thirty Dental students (DS), 30 General dentists (GDs) and 30 Dental specialists (S) participated in this study. The participants were asked to match six target tabs using two dental shade guides: Vitapan Classical (VC) and Vitapan 3D-Master (3D). An intraoral spectrophotometer was used for color measurement of target tabs and selected tabs. The color difference (Conflict of interest: NoneE) values between the target tab and selected tab were calculated. Data were analyzed using analysis of variance (ANOVA) and paired t-test (α = 0.05). Results of the first five best matches for each target tab were expressed as ΔE1 to ΔE5. Differences in the mean values of ΔE1 to ΔE5 between VC and 3D were compared using descriptive statistics. Results There were no significant differences among the three participating groups in ΔE values when the 3D was used (p = 0.389). However, significant differences were found with VC (p < 0.001). The ΔE values achieved from the 3D were significantly lower than those from VC for DS and S (p = 0.001 and p < 0.001, respectively). For each of the first five best matches, the mean ΔE values from the 3D were smaller than the corresponding values of VC. Conclusion The type of dental shade guide affected the shadematching results. The level of experience was not found to be an influential factor in shade matching when 3D-Master shade guide was used. Clinical significance Compared with Vitapan Classical shade guide, use of the Vitapan 3D-Master shade guide improves shade-matching results. How to cite this article Nakhaei M, Ghanbarzadeh J, Amirinejad S, Alavi S, Rajatihaghi H. The Influence of Dental Shade Guides and Experience on the Accuracy of Shade Matching. J Contemp Dent Pract 2016;17(1):22-26.

scholarly journals Shade Matching Performance of Dental Students with Three Various Lighting Conditions

2013 ◽  
Vol 14 (1) ◽  
pp. 100-103 ◽  
Author(s):  
Hamid Jafarzadeh ◽  
Mohammadreza Nakhaei ◽  
Jalil Ghanbarzadeh ◽  
Shirin Keyvanloo ◽  
Samin Alavi
Keyword(s):  
Light Source ◽  
Dental Students ◽  
Natural Light ◽  
Light Conditions ◽  
Mean Values ◽  
Lighting Conditions ◽  
Significant Difference ◽  
Shade Matching ◽  
Matching Performance ◽  
Shade Guide

ABSTRACT Aim To evaluate the ability of dental students to match shades under three various light conditions. Materials and methods Sixty senior dental students participated in this study. All students were tested for color deficiency using Ishahara's tests. Nine classical vita shade tabs were randomly selected and their identification codes were concealed. The students were asked to match these 9 selected items by using a complete vita shade guide under three various light conditions (natural light, clinical light, and correcting light source). The chosen shade tabs were recorded and the correct matches were counted. Scores were calculated by adding the number of correct matches. Results The mean values of correct match scores with natural light, clinical light and correcting light source were 4.82, 4.75 and 6.82, respectively. There was no significant difference in correct matches scores between men and women, nor among various vita A, B, C and D shades. Conclusion The students showed a better performance in shade matching under the correcting light source than natural light and clinical light. Gender had no effect on shade matching selection and there was no difference in shade matching ability among vita A, B, C, D shades. Clinical significance Shade matching performance is significantly improved with correcting light source. How to cite this article Nakhaei M, Ghanbarzadeh J, Keyvanloo S, Alavi S, Jafarzadeh H. Shade Matching Performance of Dental Students with Three Various Lighting Conditions. J Contemp Dent Pract 2013;14(1):100-103.

Performance of Dental Students in Shade Matching: Impact of Training

2017 ◽  
Vol 29 (2) ◽  
pp. E24-E32 ◽  
Author(s):  
Adriana P. Buhrer Samra ◽  
Marcella G. Moro ◽  
Rui F. Mazur ◽  
Sergio Vieira ◽  
Evelise M. De Souza ◽  
...  
Keyword(s):  
Dental Students ◽  
Shade Matching

scholarly journals A comparison of anterior teeth color among Polish, Saudi and Taiwanese students of dentistry

2016 ◽  
Vol 126 (3) ◽  
pp. 134-137 ◽  
Author(s):  
Mosa Alrifai ◽  
Hassan Alharby ◽  
Joanna Zubrzycka-Wróbel ◽  
Renata Chałas
Keyword(s):  
Dental Students ◽  
Tooth Color ◽  
Saudi Students ◽  
Patients Satisfaction ◽  
Anterior Teeth ◽  
Medical University ◽  
Esthetic Dentistry ◽  
Shade Guide

Abstract Introduction. Color of teeth is undoubtedly one of the most important factors considering patients’ satisfaction with the quality of their restoration, especially in the anterior region of the mouth. Therefore, the determination of color is an integral part of esthetic dentistry and therefore it should be given the highest importance in dentistry in order to achieve the esthetic requirements of patients. Aim. The aim of this study was to evaluate tooth color in 3 different ethnic groups and its relationship with gender and type of tooth using a clinical spectrophotometer. Material and methods. A total of 90 dental students of the Medical University of Lublin was divided into three groups of 30 each according to participant’s ethnicity, which was as follows: Polish, Saudi Arabian and Taiwanese. Then, different divisions were made according to gender as well as the type of teeth. The tooth color was identified by spectrophotometer. The data was statistically analyzed. Results. For the Vita Classical shade guide, A3.5 shade was the most frequently chosen in Taiwanese and Saudi students’ teeth. However, the most common shade observed for the anterior teeth of Polish students was A3. The most common shade among males was A3.5 and in females A3 was the most frequent shade. In all 360 central incisors, overall, the most common shades noticed were A2, D3 and C1. In all 360 lateral incisors, D3, A3 and A2 were the most frequent shades for this group of teeth. In all 360 canines, A3.5 and A3 were the most common shade with almost half of the number of canines in this study was measured with A3.5. Conclusions. Based on the performed preliminary research, it was observed that Polish students tend to have brighter teeth than Saudis which in turn have even brighter teeth than Taiwanese students. It was also noted that men are more likely to have darker shade values than women. Central incisors have higher values of tooth color than lateral incisors and canines.

scholarly journals Comparison between Color Spaces of Vita Lumin Shade Guide with Natural Teeth in Bengaluru Population using Spectrocolorimeter: An in vivo Study

2017 ◽  
Vol 18 (8) ◽  
pp. 683-687
Author(s):  
Deepak Mehta ◽  
Nishant Gupta ◽  
Rohit M Shetty ◽  
Adarsh N Bhat ◽  
Gopalakrishna Srivatsa ◽  
...  
Keyword(s):  
Local Population ◽  
Color Space ◽  
Color Measurement ◽  
Color Spaces ◽  
B Values ◽  
Natural Teeth ◽  
Shade Matching ◽  
Shade Guide ◽  
Shade Selection

ABSTRACT Aim The aim of this study is to compare the color space of Vita Lumin shade guide (SG) with the natural teeth of the local population. Materials and methods A total of 100 maxillary central incisors (100 patients) were subjected to color measurement with a spectrocolorimeter. For each tooth, L*, a*, b* values were recorded. All the shade tabs of Vita Lumin SG were analyzed with a spectrocolorimeter to define the color space covered by the Vita Lumin SG. The L*a*b* values of natural teeth were plotted on separate scattered diagrams and compared. Results About two out of three attributes (luminance and blue spectrum) of the local population of Bengaluru displayed a broader range than those available in Vita Lumin SG. Conclusion The local population requires an SG with an extended range, covering a higher luminance spectrum and broader blue spectrum. Clinical significance Esthetic restorations require accurate shade matching with the adjacent natural teeth, SGs being the mean of shade selection and communication should be comparable to the natural teeth. How to cite this article Shetty RM, Bhat AN, Gupta N, Mehta D, Srivatsa G, Singh I. Comparison between Color Spaces of Vita Lumin Shade Guide with Natural Teeth in Bengaluru Population using Spectrocolorimeter: An in vivo Study. J Contemp Dent Pract 2017;18(8):683-687.

scholarly journals Use of a shade guide to test the perception and prevalence of natural tooth colour in people of Nepal

2018 ◽  
Vol 10 (1) ◽  
pp. 97-99
Author(s):  
Manu Rana ◽  
Sandeep Sharma
Keyword(s):  
Small Sample Size ◽  
Small Sample ◽  
Market Demand ◽  
Maxillary Central Incisor ◽  
The People ◽  
Natural Teeth ◽  
Shade Matching ◽  
Colour Saturation ◽  
Shade Guide ◽  
Tooth Colour

Background: Recent advances in colour matching have been driven by the market demand for high-quality esthetic restorations. Improved shade guides, availability of shade-taking devices and research in the area of human colour vision have improved the potential of clinicians to achieve excellent colour matched restorations. A thorough understanding of appearance attributes of natural teeth is required along with these new tools to maximize shade matching results. Aims and Objectives: The aim of the present investigation is to determine tooth shade among the people of Nepal. Materials and Methods: In the present study, shade of cervical, middle and incisal third of the facial surface of natural maxillary central incisor was measured with digital colorimeter, VITA Easy shade Advance 4.0. It is an optical reading device that can assess the wavelengths reflected back to its sensors. Lighting in operatory does not affect the shade measurement. It is extremely accurate. The limitation of study was its small sample size. Result: The shade obtained in the cervical third of tooth is 1M2 (37.33%), in the middle 1M1 (32.88%), and in the incisal third 2M1 (37.33%). Value 1 indicates lighter tooth colour and colour saturation is up to 2. Conclusion: It was concluded that the most prevalent shade in cervical third was 1M2, middle third was 1M1 and incisal third was 2M1.

An evaluation of factors affecting dental shade matching in first-year dental students

2021 ◽  
Author(s):  
Terence A. Imbery ◽  
Courtney Killough ◽  
Mary A. Baechle ◽  
Jennifer L. Hankle ◽  
Charles Janus
Keyword(s):  
Dental Students ◽  
First Year ◽  
Factors Affecting ◽  
Shade Matching

scholarly journals Satisfaction of Dental Students, Faculty, and Patients with Tooth Shade-Matching Using a Spectrophotometer

2017 ◽  
Vol 81 (5) ◽  
pp. 545-553 ◽  
Author(s):  
Erin Ballard ◽  
Michael J. Metz ◽  
Bryan T. Harris ◽  
Cynthia J. Metz ◽  
Jang-Ching Chou ◽  
...  
Keyword(s):  
Dental Students ◽  
Shade Matching
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