Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks
The purpose of this study was to verify color differences (ΔE) of acrylic resins using specimens with 6, 4 and2mm of thickness. The acrylic resins tested were two medium pink - Clássico and Vipi - and three 66-shadematerials - Dencor (Clássico), Vipi-cor (Vipi) and Duralay (Reliance). By means of a...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Estadual Paulista
2010-08-01
|
| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/483 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849228751118794752 |
|---|---|
| author | Antonio Muench Emílio C. Zanatta Rafael Y. Ballester Josete B. C. Meira |
| author_facet | Antonio Muench Emílio C. Zanatta Rafael Y. Ballester Josete B. C. Meira |
| author_sort | Antonio Muench |
| collection | DOAJ |
| description | The purpose of this study was to verify color differences (ΔE) of acrylic resins using specimens with 6, 4 and2mm of thickness. The acrylic resins tested were two medium pink - Clássico and Vipi - and three 66-shadematerials - Dencor (Clássico), Vipi-cor (Vipi) and Duralay (Reliance). By means of a spectrophotometer wereobtained the color parameters (L*, a*, b*). ΔE values were determined according to the following conditions: 1)+10, –10 and –20 powder/liquid ratios (in wt%) compared to the normal ratio recommended by the manufacturer;2) 4 and 2mm thicknesses compared to the 6mm control; 3) comparison between pink-colored resins andamong the three 66-colored resins. Results led us to conclude that under a clinical point of view, variations onthe powder/liquid ratio had little influence on color alteration when compared to the normal ratio, as the greatestvalue (ΔE=1.6) would not be noticeable by a large number of examiners. When compared to the 6mm control,it was demonstrated that specimens with 4mm of thickness did not show great color alteration (ΔE=1.7maximum), whereas the 2mm specimen suffered unsatisfactory alterations, which, depending on the materialand ratio, reached ΔE=8.4. Color similarity between pink-colored resins was good, but differences among 66-colored resin were unsatisfactory (up to ΔE=16.2). |
| format | Article |
| id | doaj-art-b6b489a9cb6541be90a42ebabca31a37 |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2010-08-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-b6b489a9cb6541be90a42ebabca31a372025-08-22T17:45:09ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112010-08-017210.14295/bds.2004.v7i2.483Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marksAntonio MuenchEmílio C. ZanattaRafael Y. BallesterJosete B. C. MeiraThe purpose of this study was to verify color differences (ΔE) of acrylic resins using specimens with 6, 4 and2mm of thickness. The acrylic resins tested were two medium pink - Clássico and Vipi - and three 66-shadematerials - Dencor (Clássico), Vipi-cor (Vipi) and Duralay (Reliance). By means of a spectrophotometer wereobtained the color parameters (L*, a*, b*). ΔE values were determined according to the following conditions: 1)+10, –10 and –20 powder/liquid ratios (in wt%) compared to the normal ratio recommended by the manufacturer;2) 4 and 2mm thicknesses compared to the 6mm control; 3) comparison between pink-colored resins andamong the three 66-colored resins. Results led us to conclude that under a clinical point of view, variations onthe powder/liquid ratio had little influence on color alteration when compared to the normal ratio, as the greatestvalue (ΔE=1.6) would not be noticeable by a large number of examiners. When compared to the 6mm control,it was demonstrated that specimens with 4mm of thickness did not show great color alteration (ΔE=1.7maximum), whereas the 2mm specimen suffered unsatisfactory alterations, which, depending on the materialand ratio, reached ΔE=8.4. Color similarity between pink-colored resins was good, but differences among 66-colored resin were unsatisfactory (up to ΔE=16.2).https://ojs.ict.unesp.br/index.php/cob/article/view/483 |
| spellingShingle | Antonio Muench Emílio C. Zanatta Rafael Y. Ballester Josete B. C. Meira Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks Brazilian Dental Science |
| title | Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks |
| title_full | Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks |
| title_fullStr | Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks |
| title_full_unstemmed | Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks |
| title_short | Color unit differences (?E) of acrylic resins related to powder-to-liquid ratio, sample thickness and trade marks |
| title_sort | color unit differences e of acrylic resins related to powder to liquid ratio sample thickness and trade marks |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/483 |
| work_keys_str_mv | AT antoniomuench colorunitdifferenceseofacrylicresinsrelatedtopowdertoliquidratiosamplethicknessandtrademarks AT emilioczanatta colorunitdifferenceseofacrylicresinsrelatedtopowdertoliquidratiosamplethicknessandtrademarks AT rafaelyballester colorunitdifferenceseofacrylicresinsrelatedtopowdertoliquidratiosamplethicknessandtrademarks AT josetebcmeira colorunitdifferenceseofacrylicresinsrelatedtopowdertoliquidratiosamplethicknessandtrademarks |