Do Acidic Beverages Change the Refractive Index of Bulk-Fill Composites?

• Published in: Van Tıp Dergisi Vol. 28; no. 4; pp. 554 - 561
• Main Author: Alperen Değirmenci
• Format: Journal Article
• Language: English
• Published: Van Yuzuncu Yil University, School of Medicine 01-10-2021
• Subjects: abbe refractometer; acidic beverages; bulk-fill composite; composite resin; refractive index
• ISSN: 2587-0351
• DOI: 10.5505/vtd.2021.47108

INTRODUCTION: The aim of this study was to evaluate the effect of exposure of bulk-fill composite resin to 2 different acidic beverages for 1 day, 7 days and 30 days on the refractive index value. METHODS: A total of 36 specimens made from standardized disc shaped SDR Plus (Dentsply Sirona, Konstanz, Germany) universal bulk-fill composite resin was prepared. Samples were divided into three groups as distilled water (control), coke and orange juice (n = 12). Refractive index (nD) measurements were made with an Abbe refractometer. After the first measurement, samples were kept in an oven at 37 ° C in bottles for the relevant beverages in distilled water, coke and orange juice groups on the 1st day, 7th day and 30th day. nD values were tested by generalized analysis of variance. RESULTS: The average value obtained in n30 was obtained lower than the others. There is no difference between the average values in the first 3-time period. Group and time interaction was statistically significant. The mean value of n30 in the control group was lower than at other times. In the coke group, the average value obtained in n30 was obtained lower than other times. There is also a statistical difference between n7 and n1. There is also a difference between nilk and n30 and n7 in the orange group. DISCUSSION AND CONCLUSION: Acidic beverages decrease the refractive index value of bulk-fill composite resins at the end of the 30th day. This decrease occurs most often in samples exposed to coke.