Spectrophotometric and Profilometric Evaluation of a Single-shade Composite Resin Immersed in Frequently Consumed Beverages: An In Vitro Study

Abstract

Aim: The aim of this study is to evaluate the effects of frequently consumed beverages on the color depth penetration and surface roughness (Ra) of a universal single-shade composite, namely Palfique Omnichroma. Materials and methods: A total of 84 Palfique Omnichroma (Tokuyama Dental Corporation, Japan) composite disks were fabricated and randomly divided into three groups of 28 specimens each, according to the solutions—group I—tea, group II—coffee (test groups), and group III—artificial saliva (control group). Initial color and Ra were measured. The samples from each group were immersed for 15 minutes twice a day for 15 days, and then final measurements were recorded. The color change (ΔE) assessment was done using a reflectance spectrophotometer. The Ra measurements were analyzed with a contact stylus profilometer. One-way analysis of variance (ANOVA) with post hoc Tukey’s test and paired t-test were used for statistical analysis of Ra and ΔE. Results: Tea group resin specimens produced the most discoloration, followed by the coffee group, whereas artificial saliva exhibited the least ΔE after immersion for 15 days in the composite resin evaluated. Maximum Ra has been observed in the group of specimens subjected to coffee, followed by the tea group. The least Ra was exhibited by the artificial saliva group. Conclusion: The evaluated staining beverage solutions and immersion time may have an impact on the composite resin’s color stability and Ra. However, there are many other factors that affect how composite resin interacts with beverages. Clinical significance: Consumption of colorant beverages may have an impact on the resin composite’s esthetic and physical characteristics. The study emphasizes the properties of the evaluated composite resin, thereby assessing the quality of restoration and aiding the clinician’s decision of material choice.