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Journal of Dental Research, Dental Clinics, Dental prospects، جلد ۸، شماره ۲، صفحات ۶۷-۷۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Color stability of enamel following different acid etching and color exposure times
چکیده انگلیسی مقاله Background and aims. The aim of this study was to evaluate the effect of different etching times on enamel color stability after immediate versus delayed exposure to colored artificial saliva (CAS). Materials and methods. Human first premolars were divided into five groups of twenty. A colorimeter was used according to the CIE system on the mid-buccal and mid-lingual surfaces to evaluate initial tooth color. Samples in group A remained unetched. In groups B to E, buccal and lingual surfaces were initially etched with phosphoric acid for 15 and 60 seconds, respectively. Then, the samples in groups A and C were immersed in colored artificial saliva (cola+saliva). In group B, the teeth were immersed in simple artificial saliva (AS). Samples in groups D and E were immersed in AS for 24 and 72 hours, respectively before being immersed in colored AS. The teeth were immersed for one month in each solution before color measurement. During the test period, the teeth were retrieved from the staining solution and stored in AS for five minutes. This was repeated 60 times. Color changes of buccal and lingual surfaces were calculated. Kruskal-Wallis and Wilcoxon tests were used for statistical analysis (α≤0.05). Results. There were no significant differences between the groups in term of E of buccal (P=0.148) and lingual surfaces (P=0.73). Conclusion. Extended time of etching did not result in significant enamel color change. Immediate and delayed exposure of etched enamel to staining solutions did not result in clinically detectable tooth color changes.
کلیدواژه‌های انگلیسی مقاله Acid etching, staining, tooth discoloration
نویسندگان مقاله آرزو جهان بین | arezoo jahanbin
associate professor of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

محمد باصفا | mohammad basafa
professor of orthodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

مصطفی معظمی | mostafa moazzami
associate professor of restorative dentistry, dental research center, faculty of dentistry, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

بهنوش باصفا | behnoush basafa
dentist, mashhad, iran


ندا اسلامی | neda eslami
assistant professor of orthodontics,dental research center, mashhad university of medical sciences

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

نشانی اینترنتی http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/1004
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/183/article-183-319725.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article
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