Comparing the Influence of Common Beverages on the Color Stability of Heat Cure Acrylic Resins

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Rostamzadeh Masomeh; Takhtardeshir Sana; Nouri Bijan

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Journal Paper

Paper Information

Journal: JOURNAL OF ISFAHAN DENTAL SCHOOL Year:2024 | Volume:20 | Issue:1 Page(s): 33-42

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Information Journal Paper

Title

Comparing the Influence of Common Beverages on the Color Stability of Heat Cure Acrylic Resins

Author(s)

Rostamzadeh Masomeh | Takhtardeshir Sana | Nouri Bijan | Issue Writer Certificate

Keywords

Prosthesis; Denture; Acrylic resins; Beverages; Properties.

Abstract

Introduction: The aim of this study is to investigate and compare the color changes in two types of heat-cure resin acrylics (Ivoclar and Acrosun) when immersed in common beverages such as coffee, tea, and soda for six days.

Materials and Methods: This experimental laboratory study involved the preparation of 60 heat-cure resin acrylic samples, with 30 from Ivoclar and 30 from Acrosun. The samples were divided into three subgroups and immersed in 200 ml of fresh solutions of one of the tested drinks (1% tea, 1% coffee, and soda) for six days and nights. The samples were then washed, dried, and examined using a solid reflective spectrophotometer. Colorimetry was performed based on the CIE Lab system.

Results: The study found that exposure to 1% tea and 1% coffee solutions caused significant color changes in both Ivoclar and Acrosun heat-cure acrylic samples. However, the Acrosun resin acrylic samples demonstrated less color change compared to the Ivoclar group when exposed to all three drinks. The amount of color change caused by exposure to soda for six days was less in both groups, with the Acrosun group performing better.

Conclusion: The study concludes that immersion in soda for six days caused less color change in both Ivoclar and Acrosun resin acrylic groups and had better performance. Acrosun resin acrylic samples experienced significantly less color change when exposed to all three drinks: 1%tea, 1% coffee, and soda. According to the NBS units index, no clinical difference was observed between the color change of the two groups of resin acrylic samples.

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