Changes in color and contrast ratio of resin composites after curing and storage in water
Purpose: To verify the color change and contrast ratio of resin composites after curing and after 30 days of storage in water. Methods: Dentin A2 shades of different light-cured dental resin composites (Vittra APS, FGM, Brazil; Z350 XT, 3M ESPE, EUA; Tetric N-Ceram, Ivoclar Vivadent, Liechtenstein,...
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| Format: | Article |
| Language: | English |
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Springer
2021-12-01
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| Series: | Saudi Dental Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S101390522100016X |
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| author | Marlus da Silva Pedrosa Fernando Neves Nogueira Vitor de Oliveira Baldo Igor Studart Medeiros |
| author_facet | Marlus da Silva Pedrosa Fernando Neves Nogueira Vitor de Oliveira Baldo Igor Studart Medeiros |
| author_sort | Marlus da Silva Pedrosa |
| collection | DOAJ |
| description | Purpose: To verify the color change and contrast ratio of resin composites after curing and after 30 days of storage in water. Methods: Dentin A2 shades of different light-cured dental resin composites (Vittra APS, FGM, Brazil; Z350 XT, 3M ESPE, EUA; Tetric N-Ceram, Ivoclar Vivadent, Liechtenstein, and Charisma Diamond, Heraeus Kulzer, Germany) were tested. Ten rounded specimens (8 mm × 2 mm) were prepared for each material. Reflectance for all samples was obtained using a spectrophotometer (Minolta CM 3700d, Konica Minolta, Japan) before curing, immediately after curing, and after 30 days of storage in water. The color change (ΔE*lab) and contrast ratio (CR) data were analyzed using a one-way analysis of variance with Tukey's and paired t-tests (α = 1%). Results: For all materials tested, significant color changes were noticeable after curing and after 30 days in water (p < 0.01). Significant changes in the CR values before curing, after curing, and 30 days of storage in water were observed in the resin composites investigated (p < 0.01) except for Z350 (p > 0.01). Conclusion: The CR values and color changes after curing and 30 days of storage in water varied depending on the material tested. This study corroborates the clinical practice of curing a small amount of unpolymerized resin composite on the tooth surface to select the desired shade before undertaking esthetic restorative procedures. |
| format | Article |
| id | doaj-art-ef32aa268cbe4afdb5e3bedc35552274 |
| institution | DOAJ |
| issn | 1013-9052 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Springer |
| record_format | Article |
| series | Saudi Dental Journal |
| spelling | doaj-art-ef32aa268cbe4afdb5e3bedc355522742025-08-20T02:56:40ZengSpringerSaudi Dental Journal1013-90522021-12-013381160116510.1016/j.sdentj.2021.02.002Changes in color and contrast ratio of resin composites after curing and storage in waterMarlus da Silva Pedrosa0Fernando Neves Nogueira1Vitor de Oliveira Baldo2Igor Studart Medeiros3Corresponding author at: Departamento de Biomateriais e Biologia Oral, Faculdade de Odontologia, Universidade de São Paulo (USP), Av. Prof. Lineu Prestes, 2227, Cidade Universitária, São Paulo, SP 05508-900, Brazil.; Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, BrazilDepartment of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, BrazilDepartment of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, BrazilDepartment of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, BrazilPurpose: To verify the color change and contrast ratio of resin composites after curing and after 30 days of storage in water. Methods: Dentin A2 shades of different light-cured dental resin composites (Vittra APS, FGM, Brazil; Z350 XT, 3M ESPE, EUA; Tetric N-Ceram, Ivoclar Vivadent, Liechtenstein, and Charisma Diamond, Heraeus Kulzer, Germany) were tested. Ten rounded specimens (8 mm × 2 mm) were prepared for each material. Reflectance for all samples was obtained using a spectrophotometer (Minolta CM 3700d, Konica Minolta, Japan) before curing, immediately after curing, and after 30 days of storage in water. The color change (ΔE*lab) and contrast ratio (CR) data were analyzed using a one-way analysis of variance with Tukey's and paired t-tests (α = 1%). Results: For all materials tested, significant color changes were noticeable after curing and after 30 days in water (p < 0.01). Significant changes in the CR values before curing, after curing, and 30 days of storage in water were observed in the resin composites investigated (p < 0.01) except for Z350 (p > 0.01). Conclusion: The CR values and color changes after curing and 30 days of storage in water varied depending on the material tested. This study corroborates the clinical practice of curing a small amount of unpolymerized resin composite on the tooth surface to select the desired shade before undertaking esthetic restorative procedures.http://www.sciencedirect.com/science/article/pii/S101390522100016XCIELABConservative dentistryDental materialsResin composites |
| spellingShingle | Marlus da Silva Pedrosa Fernando Neves Nogueira Vitor de Oliveira Baldo Igor Studart Medeiros Changes in color and contrast ratio of resin composites after curing and storage in water Saudi Dental Journal CIELAB Conservative dentistry Dental materials Resin composites |
| title | Changes in color and contrast ratio of resin composites after curing and storage in water |
| title_full | Changes in color and contrast ratio of resin composites after curing and storage in water |
| title_fullStr | Changes in color and contrast ratio of resin composites after curing and storage in water |
| title_full_unstemmed | Changes in color and contrast ratio of resin composites after curing and storage in water |
| title_short | Changes in color and contrast ratio of resin composites after curing and storage in water |
| title_sort | changes in color and contrast ratio of resin composites after curing and storage in water |
| topic | CIELAB Conservative dentistry Dental materials Resin composites |
| url | http://www.sciencedirect.com/science/article/pii/S101390522100016X |
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