Effectiveness of four different light-activated composites cure with different light energy densities
المؤلفون المشاركون
al-Azzawi, Haytham J.
al-Shekhli, Ali A.
al-Aubi, Isra A.
المصدر
Journal of Baghdad College of Dentistry
العدد
المجلد 18، العدد 3 (30 سبتمبر/أيلول 2006)، ص ص. 12-16، 5ص.
الناشر
تاريخ النشر
2006-09-30
دولة النشر
العراق
عدد الصفحات
5
التخصصات الرئيسية
الموضوعات
الملخص EN
Background : This study investigated the influence of light energy density (intensity x time) on the effectiveness of composite cure in view of the curing profiles of light-polymerization units with different light- activated composites to determine the energy density that satisfies adequate polymerization of all light-activated composites types used in this study.
Materials and methods : This study investigated the hardness of the top / bottom surfaces and hardness ratio of two mm thick composite specimens after exposure to different light energy densities.
Parameters included five light intensities (200, 300, 400, 500 and 600 mW / cm2) and seven irradiation times (20, 40, 60, 90, 120, 150 and 180 seconds) for each of the four different light-activated composite materials (Tetric Ceram, Heliomolar, Herculite XRV and Degufill Mineral).
Results : Statistical analysis of the data by using the one-way analysis of variance revealed that, most of the hardness ratios exhibited a very highly significant difference according to intensity, composite type and curing time.
The results indicated that, Heliomolar and Degufill Mineral light-activated composites required approximately (36 J / cm²) energy density for adequate polymerization for a two-mm thick specimen while, Herculite XRV and Tartaric Ceram light-activated composites required approximately (12 J / cm²) energy density for adequate polymerization for a 2-mm thick specimen.
Conclusion : This study indicated that, final curing should not be done with energy density less than (300 mW / cm2 for 120 seconds, 400 mW / cm2 for 90 seconds and 600 mW / cm2 for 60 seconds) for Heliomolar and Degufill Mineral light-activated composites.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Shekhli, Ali A.& al-Azzawi, Haytham J.& al-Aubi, Isra A.. 2006. Effectiveness of four different light-activated composites cure with different light energy densities. Journal of Baghdad College of Dentistry،Vol. 18, no. 3, pp.12-16.
https://search.emarefa.net/detail/BIM-289075
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Shekhli, Ali A.…[et al.]. Effectiveness of four different light-activated composites cure with different light energy densities. Journal of Baghdad College of Dentistry Vol. 18, no. 3 (2006), pp.12-16.
https://search.emarefa.net/detail/BIM-289075
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Shekhli, Ali A.& al-Azzawi, Haytham J.& al-Aubi, Isra A.. Effectiveness of four different light-activated composites cure with different light energy densities. Journal of Baghdad College of Dentistry. 2006. Vol. 18, no. 3, pp.12-16.
https://search.emarefa.net/detail/BIM-289075
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 16
رقم السجل
BIM-289075
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر