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  Abstract View: 19

Basic Research

Original Article

In Vitro Comparison of Color Changes of Three Different Brands of Acrylic Teeth of Removable Dentures in Three Different Beverages

Roza motayagheni ORCID logo, zia ebrahim adhami ORCID logo, seyede mahsa taghizadeh motlagh ORCID logo, fereshte mehrara, neda yasamineh* ORCID logo

Abstract

background: Color is one of the most important factors in the esthetic appearance of dental prostheses and the materials used in the fabrication of prostheses should have favorable color stability. The present in vitro study was undertaken to evaluate color changes of three different brands of acrylic resin teeth in three different beverages. methods: In this in vitro study, 10 samples from each brand of acrylic resin tooth (Ivoclar, Italy; BStar, Iran; and BetaDent, Iran) were immersed in the following beverages for 1 week: tea, orange juice, natural carrot juice and distilled water (control). The color parameters were measured using spectrophotometry technique before and after immersion, and changes were calculated. The same procedures were carried out with the same number of samples for 30-day interval. Data were analyzed with proper statistical techniques. Results: After 7 days, Ivoclar and BStar brands exhibited the minimum and maximum color changes, respectively. At 30-day interval, the Ivoclar and BetaDent brands exhibited the minimum and maximum color changes, respectively. At 7-day interval, carrot juice, orange juice and tea, in descending order, caused the maximum and minimum color changes. At 30-day interval, carrot juice resulted in maximum color changes. orange juice and tea caused similar color changes. Conclusion: Different beverages resulted in color changes with different patterns in different brands of acrylic resin teeth. Overall, Ivoclar brand exhibited less color changes compared to BStar and BetaDent brands.
Keywords: Acrylic resin teeth, BetaDent, BStar, color change, Ivoclar
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Submitted: 05 Jul 2019
Revision: 05 Jul 2020
Accepted: 05 Jul 2020
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