Colour Stability of Heat and Cold Cure Acrylic Resins
Introduction: To evaluate the colour stability of heat and cold cure acrylic resins under simulated oral conditions with different colorants. Materials and Methods: Three different brands of heat cure acrylic resin and two rapid cure auto polymerizing acrylic resin of commercial products such a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2015-01-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/5400/11620_CE(Ra)_F(Sh)_PF1(NJAK)_PFA(AK)_PF2(PAG).pdf |
| _version_ | 1818048269160284160 |
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| author | Pavan Kumar Bohra Ganesh P R Madan Mohan Reddy A.V.Rajesh Ebenezar Sivakumar G |
| author_facet | Pavan Kumar Bohra Ganesh P R Madan Mohan Reddy A.V.Rajesh Ebenezar Sivakumar G |
| author_sort | Pavan Kumar Bohra |
| collection | DOAJ |
| description | Introduction: To evaluate the colour stability of heat and cold
cure acrylic resins under simulated oral conditions with different
colorants.
Materials and Methods: Three different brands of heat cure
acrylic resin and two rapid cure auto polymerizing acrylic
resin of commercial products such as Trevelon Heat Cure
(THC), DPI Heat cure (DHC), Pyrax Heat Cure (PHC), DPI
Cold cure (DCC) and Acralyn-R-Cold cure (ACC) have been
evaluated for discoloration and colour variation on subjecting
it to three different, commonly employed food colorants such
as Erythrosine, Tartarizine and Sunset yellow. In order to
simulate the oral condition the food colorants were diluted with
artificial saliva to the samples taken up for the study. These
were further kept in an incubator at 37°C ± 1°C. The UV-visible
spectrophotometer has been utilized to evaluate the study on
the basis of CIE L* a* b* system. The prepared samples for
standard evaluation have been grouped as control group, which
has been tested with a white as standard, which is applicable
for testing the colour variants.
Results: The least colour changes was found to be with
Sunset Yellow showing AE* value of 3.55 with heat cure
acrylic resin branded as PHC material and the highest colour
absorption with Tartarizine showing AE* value of 12.43 in rapid
cure autopolymerzing acrylic resin material branded as ACC
material.
Conclusion: ACC which is a self cure acrylic resin shows a
higher colour variation to the tartarizine food coloration. There
were not much of discoloration values shown on the denture
base resins as the food colorants are of organic azodyes. |
| first_indexed | 2024-12-10T10:19:00Z |
| format | Article |
| id | doaj.art-302fd3ebd6494bf8843cf9aa94fdc6d2 |
| institution | Directory Open Access Journal |
| issn | 2249-782X 0973-709X |
| language | English |
| last_indexed | 2024-12-10T10:19:00Z |
| publishDate | 2015-01-01 |
| publisher | JCDR Research and Publications Private Limited |
| record_format | Article |
| series | Journal of Clinical and Diagnostic Research |
| spelling | doaj.art-302fd3ebd6494bf8843cf9aa94fdc6d22022-12-22T01:52:55ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2015-01-0191ZC12ZC1510.7860/JCDR/2015/11620.5400Colour Stability of Heat and Cold Cure Acrylic ResinsPavan Kumar Bohra0Ganesh P R1Madan Mohan Reddy2A.V.Rajesh Ebenezar3Sivakumar G4Professor, Department of Prosthodontics, Madha Dental College, Chennai, India.Professor and Head, Department of Prosthodontics, Madha Dental College, Chennai, India.Professor and Head, Department of Prosthodontics, Teja Dental College, Tirupati, India.Professor, Department of Conservative Dentistry and Endodontics, Madha Dental College, Chennai, India.Professor and Head, Department of Oral Pathology and Oral Microbiology, Madha Dental College, Chennai, India.Introduction: To evaluate the colour stability of heat and cold cure acrylic resins under simulated oral conditions with different colorants. Materials and Methods: Three different brands of heat cure acrylic resin and two rapid cure auto polymerizing acrylic resin of commercial products such as Trevelon Heat Cure (THC), DPI Heat cure (DHC), Pyrax Heat Cure (PHC), DPI Cold cure (DCC) and Acralyn-R-Cold cure (ACC) have been evaluated for discoloration and colour variation on subjecting it to three different, commonly employed food colorants such as Erythrosine, Tartarizine and Sunset yellow. In order to simulate the oral condition the food colorants were diluted with artificial saliva to the samples taken up for the study. These were further kept in an incubator at 37°C ± 1°C. The UV-visible spectrophotometer has been utilized to evaluate the study on the basis of CIE L* a* b* system. The prepared samples for standard evaluation have been grouped as control group, which has been tested with a white as standard, which is applicable for testing the colour variants. Results: The least colour changes was found to be with Sunset Yellow showing AE* value of 3.55 with heat cure acrylic resin branded as PHC material and the highest colour absorption with Tartarizine showing AE* value of 12.43 in rapid cure autopolymerzing acrylic resin material branded as ACC material. Conclusion: ACC which is a self cure acrylic resin shows a higher colour variation to the tartarizine food coloration. There were not much of discoloration values shown on the denture base resins as the food colorants are of organic azodyes.https://jcdr.net/articles/PDF/5400/11620_CE(Ra)_F(Sh)_PF1(NJAK)_PFA(AK)_PF2(PAG).pdfcolorantscalorimetryheat cure acrylic resinsself cure acrylic resinsspectrophotometer |
| spellingShingle | Pavan Kumar Bohra Ganesh P R Madan Mohan Reddy A.V.Rajesh Ebenezar Sivakumar G Colour Stability of Heat and Cold Cure Acrylic Resins Journal of Clinical and Diagnostic Research colorants calorimetry heat cure acrylic resins self cure acrylic resins spectrophotometer |
| title | Colour Stability of Heat and Cold Cure Acrylic Resins |
| title_full | Colour Stability of Heat and Cold Cure Acrylic Resins |
| title_fullStr | Colour Stability of Heat and Cold Cure Acrylic Resins |
| title_full_unstemmed | Colour Stability of Heat and Cold Cure Acrylic Resins |
| title_short | Colour Stability of Heat and Cold Cure Acrylic Resins |
| title_sort | colour stability of heat and cold cure acrylic resins |
| topic | colorants calorimetry heat cure acrylic resins self cure acrylic resins spectrophotometer |
| url | https://jcdr.net/articles/PDF/5400/11620_CE(Ra)_F(Sh)_PF1(NJAK)_PFA(AK)_PF2(PAG).pdf |
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