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Register a new userA comparative Study of Some Mechanical Properties of Silorane -based & Methacrylate- Based Composites
دراسة مقارنة بين مادتي الكومبوزيت السيلورانيو الكومبوزيت الحاوي على ميتاكريلات من حيث بعض الخواص الميكانيكية
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سعاد عبود( باحث )
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ظهرت مؤخرا مادة FiltekP90 التي تحمل شعار " الترميمات ذات التقلص التصلبي الأقل ". و هي من مواد الكومبوزيت الهجين التي تعتمد تقنية السيلوران الذي يحتوي على المونوميرات ذات الحلقة القابلة للفتح. تناول البحث اختبار كل من مقاومتي الالتواء و الاهتراء لمادة Filtek ذات الأساس السيلوراني مع مادتي Tetric- Evo Ceram و Tetric Ceram HB ذات الأساس الميتاكريلاتي لتقويم مدى تأثير تغيير القالب الراتنجي في هاتين الخاصتين.
Ring-opening monomers with a reduced shrinkage stress “silorane" are being used as matrix resins for recently introduced dental composites. Thisstudy aimed to analyzethe mechanical behavior(Flexural StrengthFS, Abrasion Resistance AR) of the silorane-based composite (Filtek P90) in comparison to two methacrylate-based composites (Tetric- Evo Ceram & packable hybridTetric Ceram HB).
Artificial intelligence review:
Research summary
تتناول هذه الدراسة مقارنة بين مادتي الكومبوزيت السيلوراني والكومبوزيت الحاوي على ميتاكريلات من حيث بعض الخواص الميكانيكية مثل مقاومة الالتواء ومقاومة السحل. تم استخدام مادة FiltekP90 التي تعتمد على تقنية السيلوران ومقارنتها مع مادتين من الكومبوزيت الميتاكريلاتي هما Tetric EvoCeram و Tetric Ceram HB. تم تحضير العينات وفقًا لمعايير ISO 4049 وإجراء الاختبارات باستخدام أجهزة متخصصة لقياس مقاومة الالتواء والسحل. أظهرت النتائج عدم وجود فروق ذات دلالة إحصائية في مقاومة الالتواء بين المواد المدروسة، ولكن مادة FiltekP90 أظهرت مقاومة أكبر للسحل مقارنة بالمواد الميتاكريلاتية. خلصت الدراسة إلى أن مادة FiltekP90 تمتلك خواص ميكانيكية جيدة تضاهي المواد الميتاكريلاتية المستخدمة سريريًا.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مفيدة في تقديم مقارنة شاملة بين مواد الكومبوزيت المختلفة المستخدمة في طب الأسنان. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين المزيد من العينات وزيادة تنوع المواد المدروسة. كما أن الدراسة قد استفادت من تحليل أعمق للعوامل المؤثرة على الخواص الميكانيكية مثل التركيب الكيميائي والبيئة المحيطة. بالإضافة إلى ذلك، يمكن أن تكون هناك حاجة لتجارب سريرية لتأكيد النتائج المخبرية وتقييم الأداء الفعلي للمواد في الفم البشري.
Questions related to the research
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ما هي المواد التي تم مقارنتها في الدراسة؟
تم مقارنة مادة الكومبوزيت السيلوراني FiltekP90 مع مادتين من الكومبوزيت الميتاكريلاتي هما Tetric EvoCeram و Tetric Ceram HB.
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ما هي الخواص الميكانيكية التي تم دراستها؟
تم دراسة مقاومة الالتواء ومقاومة السحل.
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ما هي النتائج الرئيسية للدراسة؟
لم تلاحظ فروق ذات دلالة إحصائية في مقاومة الالتواء بين المواد المدروسة، ولكن مادة FiltekP90 أظهرت مقاومة أكبر للسحل مقارنة بالمواد الميتاكريلاتية.
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ما هي التوصيات المستقبلية للدراسة؟
توصي الدراسة بإجراء تجارب سريرية لتأكيد النتائج المخبرية وتقييم الأداء الفعلي للمواد في الفم البشري.
References used
Filho H.N, Nagem H.D, et al: Volumetric polymerization shrinkage of Contemporary composite resins J Appl Oral Sci. 2007;15(5):448-52
(Bayne SC, Thompson JY: Biomaterials. Sturdevant's Art & Science of Operative Dentistry. Fifth edition, 2006, P (190-206
IlieN,Hickel R:Macro, Micro&nano mechanical investigations on Silorane& Methacrylate-based composite.Dent Mater.2009;25:810–819
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