The effects of different repolishing procedures on the color change of bulk-fill resin composites

Muhammet Fidan

Article Details

The effects of different repolishing procedures on the color change of bulk-fill resin composites

Authors:

Muhammet Fidan

Publisher:

Istanbul University

Main Topics:

Dentistry (Other)

Journal:

European Oral Research Vol.58 Issue 1, pp.14-21

Document Type:

Article

Publication Date:

1/2024

Document Language:

English

Document ID (Org No.):

2001311471

pISSN:

2630-6158

Keywords:

Abstract:

 Purpose: The purpose of the study was to investigate the impact of repolishing procedures on the color change of bulk-fill resin composites after being exposed to coffee. Materials and methods: Four bulk-fill resin composites Filtek One bulkfill, Tetric EvoCeram bulk-fill, Admira Fusion x-tra bulk-fill, Grandio SO x-tra bulk-fill were tested. Sixty samples were prepared with each resin composite and were randomly divided into two groups: first one received the one-step polishing system Optragloss and the other group received the two-step polishing system Nova Twist n30. After being kept in coffee for 12 days, the samples were divided into three subgroups according to repolishing: one-step repolishing group, two-step repolishing group, and non-repolishing group n10 for each. Color measurements of the resin composite samples were determined with a spectrophotometer. The difference in color change was calculated using the CIEDE 2000 color formula. The data were analyzed using three-way ANOVA and Tukey test. Results: Among composite materials, Filtek One bulk-fill 1.84  0.98 less color change was observed compared to others p0.001. In terms of polishing systems, Optragloss 2.96  1.51 showed significantly greater color change than Nova Twist 2.21  1.07 p0.001. The non-repolishing group 3.78  1.25 presented significantly greater color change than the Nova Twist sytem 1.49  0.61 and Optragloss system 2.50  1.01 p0.001. Conclusion: The repolishing process reduced discoloration. A two-step repolishing system results in less color change compared to a one-step repolishing application. In polishing systems containing diamond particles, increasing the number of steps can contribute to color stability.

 Purpose: The purpose of the study was to investigate the impact of repolishing procedures on the color change of bulk-fill resin composites after being exposed to coffee. Materials and methods: Four bulk-fill resin composites Filtek One bulkfill, Tetric EvoCeram bulk-fill, Admira Fusion x-tra bulk-fill, Grandio SO x-tra bulk-fill were tested. Sixty samples were prepared with each resin composite and were randomly divided into two groups: first one received the one-step polishing system Optragloss and the other group received the two-step polishing system Nova Twist n30. After being kept in coffee for 12 days, the samples were divided into three subgroups according to repolishing: one-step repolishing group, two-step repolishing group, and non-repolishing group n10 for each. Color measurements of the resin composite samples were determined with a spectrophotometer. The difference in color change was calculated using the CIEDE 2000 color formula. The data were analyzed using three-way ANOVA and Tukey test. Results: Among composite materials, Filtek One bulk-fill 1.84  0.98 less color change was observed compared to others p0.001. In terms of polishing systems, Optragloss 2.96  1.51 showed significantly greater color change than Nova Twist 2.21  1.07 p0.001. The non-repolishing group 3.78  1.25 presented significantly greater color change than the Nova Twist sytem 1.49  0.61 and Optragloss system 2.50  1.01 p0.001. Conclusion: The repolishing process reduced discoloration. A two-step repolishing system results in less color change compared to a one-step repolishing application. In polishing systems containing diamond particles, increasing the number of steps can contribute to color stability.

 Purpose: The purpose of the study was to investigate the impact of repolishing procedures on the color change of bulk-fill resin composites after being exposed to coffee. Materials and methods: Four bulk-fill resin composites Filtek One bulkfill, Tetric EvoCeram bulk-fill, Admira Fusion x-tra bulk-fill, Grandio SO x-tra bulk-fill were tested. Sixty samples were prepared with each resin composite and were randomly divided into two groups: first one received the one-step polishing system Optragloss and the other group received the two-step polishing system Nova Twist n30. After being kept in coffee for 12 days, the samples were divided into three subgroups according to repolishing: one-step repolishing group, two-step repolishing group, and non-repolishing group n10 for each. Color measurements of the resin composite samples were determined with a spectrophotometer. The difference in color change was calculated using the CIEDE 2000 color formula. The data were analyzed using three-way ANOVA and Tukey test. Results: Among composite materials, Filtek One bulk-fill 1.84  0.98 less color change was observed compared to others p0.001. In terms of polishing systems, Optragloss 2.96  1.51 showed significantly greater color change than Nova Twist 2.21  1.07 p0.001. The non-repolishing group 3.78  1.25 presented significantly greater color change than the Nova Twist sytem 1.49  0.61 and Optragloss system 2.50  1.01 p0.001. Conclusion: The repolishing process reduced discoloration. A two-step repolishing system results in less color change compared to a one-step repolishing application. In polishing systems containing diamond particles, increasing the number of steps can contribute to color stability.

 Purpose: The purpose of the study was to investigate the impact of repolishing procedures on the color change of bulk-fill resin composites after being exposed to coffee. Materials and methods: Four bulk-fill resin composites Filtek One bulkfill, Tetric EvoCeram bulk-fill, Admira Fusion x-tra bulk-fill, Grandio SO x-tra bulk-fill were tested. Sixty samples were prepared with each resin composite and were randomly divided into two groups: first one received the one-step polishing system Optragloss and the other group received the two-step polishing system Nova Twist n30. After being kept in coffee for 12 days, the samples were divided into three subgroups according to repolishing: one-step repolishing group, two-step repolishing group, and non-repolishing group n10 for each. Color measurements of the resin composite samples were determined with a spectrophotometer. The difference in color change was calculated using the CIEDE 2000 color formula. The data were analyzed using three-way ANOVA and Tukey test. Results: Among composite materials, Filtek One bulk-fill 1.84  0.98 less color change was observed compared to others p0.001. In terms of polishing systems, Optragloss 2.96  1.51 showed significantly greater color change than Nova Twist 2.21  1.07 p0.001. The non-repolishing group 3.78  1.25 presented significantly greater color change than the Nova Twist sytem 1.49  0.61 and Optragloss system 2.50  1.01 p0.001. Conclusion: The repolishing process reduced discoloration. A two-step repolishing system results in less color change compared to a one-step repolishing application. In polishing systems containing diamond particles, increasing the number of steps can contribute to color stability.

Article Details

The effects of different repolishing procedures on the color change of bulk-fill resin composites

Authors: Muhammet Fidan

Publisher: Istanbul University

Main Topics: Dentistry (Other)

Journal: European Oral Research Vol.58 Issue 1, pp.14-21

Document Type: Article

Publication Date: 1/2024

Document Language: English

Document ID (Org No.): 2001311471

pISSN: 2630-6158

bulk-fill

color stability

discoloration

repolishing

resin composite

Issues

Authors:

Muhammet Fidan

Publisher:

Istanbul University

Main Topics:

Dentistry (Other)

Journal:

European Oral Research Vol.58 Issue 1, pp.14-21

Document Type:

Article

Publication Date:

1/2024

Document Language:

English

Document ID (Org No.):

2001311471

pISSN:

2630-6158