Effect of moisture on the translucency of Gradia and Belleglass reinforced composite resins
Abstract
Introduction: In addition to color, translucency is one of the primary factors influencing the esthetics of a dental prosthesis. The aim of this study was to determine the effect of water storage on translucency of reinforced composite resins.
Materials and Methods: In this experimental study, six C1-shade dentin samples from Belleglass and Gradia reinforced composite resins were prepared and divided into two groups: The samples in one group were stored in 37ºC distilled water and the samples in the other group were kept in a dry environment. The samples in both groups were stored at 370C in an incubator for one month. Then, sample translucency was calculated using the contrast ratio. Statistical analysis was performed by two-way ANOVA and Mann-Whitney test (α = 0.05).
Results: No significant differences were observed in contrast ratios between the wet and dry storage conditions of Belleglass samples or Gradia samples (p value = 0.827). However, significant differences were observed between contrast ratios of Belleglass and Gradia in wet and dry storage conditions (p value = 0.05), revealing that in both dry and wet storage conditions Belleglass was more translucent than Gradia.
Conclusion: Within the limitations of this study, both Belleglass and Gradia were stable in translucency after water storage. However, Belleglass was more translucent than Gradia in both dry and wet storage conditions.
Key words: Composite resin, Reinforced composite resin, Tooth translucency.
Based on the obtained author agreement upon submission, “Journal of Isfahan Dental School” is the copyright owner of the published material. However, this is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.
Article evaluation process:
- The article assessment will be started after being submitted on the journal site and will be sent to the reviewers for scientific evaluation after receiving the submission fee and if the structural principles are observed. The results of the judging will be reviewed by the Writers' Council and, if necessary, amendments will be sent to the responsible author. After final correction and approval, the articles are published in the journal in the order of the article approval date.
- Clinical trial articles must be previously registered on the site (www.IRCT.ir) and their registration number must be mentioned at the beginning of the Materials and Methods.
- Case report articles must have a consent letter and a code of ethics.
- The journal has the right to accept or reject the article and also reserves the right to scientific and literary editing and, if necessary, summarizing the article. After submitting the article, all rights to it belong to the magazine.
- The journal will not be liable for litigation between authors as well as the correctness of the academic rank or affiliation of the authors. Also, the accuracy of the contents of the article is the responsibility of all the author (s).
- After the article enters the final stage (References check), it is not possible for the author (s) to cancel the publication of the article.
- After the Proof version is approved by the responsible author, it is not possible to change the number or order of the authors of the article.
Address: Journal of Isfahan Dental School, School of Dentistry, Isfahan University of Medical Sciences, Hezar Jerib St. Isfahan, IRAN.
Postal Code: 81746-72461
Phone: 031-37925523
Fax: 031-36687080
Email: jids@dnt.mui.ac.ir
URL: http://jids.journalonweb.ir/index.php/jids
