IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-ISSN: 2279-0853, p-ISSN: 2279-0861.Volume 17, Issue 11 Ver. 3 (November. 2018), PP 63-69 www.iosrjournals.org DOI: 10.9790/0853-1711036369 www.iosrjournals.org 63 | Page Comparıson Of Coloratıon Of Composıte Resın Restoratıons As A Result Of Waıtıng For Dıfferent Solutıons Hakan Yasin GÖNDER 1 , Zeynep DERELİ 1 1 (Restorative Dentistry, Faculty of Dentistry/ Necmettin Erbakan University, Turkey) Corresponding author: Hakan Yasin GÖNDER Abstract: Objective: The aim of this study was to evaluate the effect of different times and exposure time of different solutions on coloration. Material and Method: In this study, 60 pieces of 13 mm diameter and 1.5 mm thick composite blocks were used. Five different solutions (tea, coffee, cola, red wine and distilled water) were used for the staining procedure. Samples were analyzed by using spectrophotometer and color changes according to the time and solutions they were kept in the solutions. Color values of each sample kept in solutions for 30 days. 1, 2, 7. On the 21st and 30th days, the color change values (∆E00) were calculated. Statistical analyzes were performed by comparing the ANOVA in multiple groups with the Bonferonni test in paired comparisons, when the mean values of the data provided normal distribution. Kruskall Wallis and Mann Whitney-U test were used for nonparametric conditions Results:In the study, the differences of the samples according to the days and the solutions used were not statistically different between the coloration measurements of the water from day 1 to day 30 (p = 0.205). In all other solutions, the colorings increased with time. After 30 days, all mean measurements were statistically increased in tea, instant coffee, cola and wine solutions (p <0.001). Conclusion: The color of the samples kept in colorant solutions increased with time. The highest coloration of wine in distilled water while the samples are kept in time showed no statistical difference in color. Keywords: Coloration, composite, solution -------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 28-10-2018 Date of acceptance: 14-11-2018 --------------------------------------------------------------------------------------------------------------------------------------- I.Introduction In today's dentistry restoration of the tooth tissue with the least possible loss of aesthetic and function is intended to be as high as possible. Composite restorations are almost reliable and up-to-date aesthetic restorations that have completely replaced the amalgam. Composite resin materials are translucent and have a tooth color. The terminological meaning of the word şekil composites olarak means the products formed by combining at least two different materials with different structure and characteristics to form distinct phases [1,2]. It is possible to define the composite material as a three-dimensional mixture of at least two different materials in current dentistry. By combining two or more materials with different structure and characteristics, it is aimed to develop a new material with the characteristics they cannot have on their own [1,2]. In 1962, composite resins were firstly introduced by Buonocore in 1955 [3], after the application of acid for 30 seconds with 85% phosphoric acid to the enamel surface. Ray Bowen has made great progress since they are described [4]. Obtaining natural-looking dental restorations is an important goal for dentists [5]. In order to simulate the natural appearance of the tooth in restorations, materials and layering techniques are required in different colors and opacities. Newly developed materials allow the complex anatomy and optical properties of the tooth to be applied to restorations [6]. Effective polymerization of composite resins is of great importance in the clinical success of composite resin restorations. It is stated that the polymerization affects the corrosion resistance, surface hardness, biocompatibility, residual monomer content and water absorption of composite resins [7,8]. Color Stability In today's dentistry, the development and strengthening of both physical and aesthetic properties of composite resins has been widely used. Aesthetic restorative materials should be able to mimic the appearance of natural teeth and this is directly related to the color matching and color stability of the material [9].