Exploration of the Customized Fixtures for the Evaluation of Three-point Bending Strength of Dental Resin Composites

Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
View: 250

This Paper With 5 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_JDMT-9-1_008

تاریخ نمایه سازی: 1 مرداد 1399

Abstract:

Introduction: This study aimed to devise customized fixtures for the evaluation of three-point bending strength (TPBS) of resin-based dental composites (RBCs). Materials and Methods: A cube-shaped jig made out of wood with dimensions of 105×105×101 mm was prepared in this study. A 20-mm-diameter hole was made in the center of the wooden jig. In addition, a stainless steel probe with 175mm length, 3mm thickness, and 2 mm width was fabricated and then fitted in the upper gripping crosshead of the universal testing machine. Subsequently, bar-shaped specimens of two commercial RBCs, namely Filtek Z350 XT Supreme Ultra Universal (Z350) and Premium Nano-Hybrid Composite (PN) were placed over the center of the jig hole and subjected to TPBS test in accordance with ISO 4049 standards protocol. Results: The mean TPBS values of Z350 and PN RBCs were 82 and 86 MPa, respectively. Moreover, the standard deviation values for both mean TPBS values were low indicating the homogeneity of the findings and associated reliability of the employed fixtures. Conclusion: The fixtures for the TPBS test of RBCs were successfully designed and developed which would likely facilitate the researchers with a mechanical characterization of dental materials. A machine used for the testing of large industrial materials other than small dimensional dental materials can now be used to test TPBS of RBCs according to ISO 4049 with the help of the invented economical fixtures. This will enhance the quality of teaching and learning of materials science in developing countries.

Authors

Tooba Farhan

Dr Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan

Naresh Kumar

Dr Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan.

Faiza Amin

Dow Dental College Dow University of health Sciences Karachi, Pakistan

Syed Junaid Mahmood

Plastic and Polymer Section, Applied Chemistry Research Centre, PCSIR Labs Complex, Karachi, Pakistan

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • Burke FJT. Amalgam to tooth-colored materials-implications for clinical practice and ...
  • Kumar N. Inconsistency in the strength testing of dental resin-based ...
  • Kumar N, Sangi L. Water sorption, solubility, and resultant change ...
  • Erdemir U,  Yildiz E,  Eren M, Ozel S. Surface hardness ...
  • D’Arcangelo  C,  Vaninib L,  Rondoni G,  Pirani M,   Vadini M, ...
  • El-Safty S, Silikas N, Watts DC. Creep deformation of restorative ...
  • Takeshige F, Kawakami Y, Hayashi M, Ebisu S. Fatigue behavior ...
  • Ornaghi B, Meier M, Lohbauer U, Braga R. Fracture toughness ...
  • Ilie N, Hilton T, Heintze S, Hickel R, Watts D, ...
  • International Standards Organization. Dentistry – Polymer-based Filling, Restorative and Luting ...
  • نمایش کامل مراجع