Effect of preheat repetition on color stability of methacrylate- and silorane-based composite resins
Effect of preheat repetition on color stability of methacrylate- and silorane-based composite resins
نویسندگان: مهدی عابد کهنمویی , سهند ریخته گران , مهدی دانشپوی , سودابه کیمیائی , پرنیان علیزاده اسکویی , یاشار رضاعی
کلمات کلیدی: Composite resin, preheating, microleakage, color stability
نشریه: 19913 , 4 , 11 , 2017
| نویسنده ثبت کننده مقاله |
مهدی عابد کهنمویی |
| مرحله جاری مقاله |
تایید نهایی |
| دانشکده/مرکز مربوطه |
مرکز تحقیقات لثه و دندان |
| کد مقاله |
62097 |
| عنوان فارسی مقاله |
Effect of preheat repetition on color stability of methacrylate- and silorane-based composite resins |
| عنوان لاتین مقاله |
Effect of preheat repetition on color stability of methacrylate- and silorane-based composite resins |
| ناشر |
7 |
| آیا مقاله از طرح تحقیقاتی و یا منتورشیپ استخراج شده است؟ |
بلی |
| عنوان نشریه (خارج از لیست فوق) |
- |
| نوع مقاله |
Original Article |
| نحوه ایندکس شدن مقاله |
ایندکس شده سطح دو – PubMed |
| آدرس لینک مقاله/ همایش در شبکه اینترنت |
https://www.ncbi.nlm.nih.gov/pubmed/?term=Effect+of+preheat+repetition+on+color+stability+of+methacrylate-+and+silorane-based+co |
| Background. The aim of this study was to investigate the effect of preheating methacrylate- and silorane-based composite resins on their color stability up to 40 times at 55‒60°C.
Methods. Seventy-six methacrylate and silorane-based composite resin samples, with a diameter of 10 mm and a height of 2 mm, were divided into 4 groups (n=19). After the samples were prepared, their color parameters were determined using a reflective spectrophotometer. The composite resin samples were separately stored in a solution of tea for 40 consecutive days. Then the samples underwent a color determination procedure again using a spectrophotometer and color changes were recorded. Finally two-way ANOVA was used to study the effect of composite temperature on its staining (P<0.05). Independent-samples t-test was used to evaluate changes in conversion rates of preheated composite resin samples compared to non-heated samples at P=0.005 and P=0.029 for silorane-based and Z250 composite resin samples, respectively.
Results. Both composite resin type (P=0.014) and preheating (P<0.001) had significant effects on ΔE.
Conclusion. Repeated preheating of methacrylate- and silorane-based composite resin samples, up to 55‒60°C for 40 rounds, resulted in more color changes compared with unheated composite resin samples. After storage in a solution of tea the color change rate in the composite resin samples of silorane-based was higher than the Z250 composite resin samples. |
| نام فایل |
تاریخ درج فایل |
اندازه فایل |
دانلود |
| Kahnamoeei.pdf | 1396/10/26 | 211939 | دانلود |