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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Dental Materials and Techniques
- نوع مقاله: Journal Article
- کلمات کلیدی: Customized fixtures,Fixtures,Resin-based composites,Three-point bending test,Universal testing machine,wooden jig
- چکیده:
- چکیده انگلیسی: 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.
- انتشار مقاله: 07-08-1398
- نویسندگان: Tooba Farhan,Naresh Kumar,Faiza Amin,Syed Junaid Mahmood
- مشاهده
- جایگاه : پژوهشی
- مجله: Advanced Herbal Medicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Fenugreek,Galactagogue,Antinociceptive,Hepatoprotective,Hypoglycaemic,Antioxidative
- چکیده:
- چکیده انگلیسی: Background and aims: Fenugreek (Trigonella foenum-graecum) is a medicinal plant with potential applications in the medicinal purposes. Fenugreek has been used in food as a flavouring agent since ancient times in many countries like Greece, Rome and Egypt. It has a special place in the traditional medical system. The aim of this study was to review phytochemistry and pharmacological effects of Trigonella foenum-graecum.
Methods: This research was a review study. Data were collected using articles in various databases and books about pharmacological effects of Trigonella foenum-graecum.
Results: The seeds are rich sources of lipids, protein, mucilage, calcium, dietary fiber B vitamins, Iron, protease inhibitors and several steroid saponins, tiny amounts of alkaloid, furostanol glycosides and steroidal peptide. As a medicinal plant, fenugreek recognized as a galactagogue or lactation stimulant in women after child birth as well as for its ability to treat wounds and sore muscles. In addition, it has the ability to be as antibacterial, anti-ulcer, anti-cancer, anthelmintic (antagonistic effect against parasitic worms), and antinociceptive (pain-reducing) properties. In recent years, laboratory studies and clinical trials have focused on the potential activity of fenugreek as a natural medicine.
Conclusion:These studies have shown that fenugreek plants possess immunomodulatory, hypocholesterolaemic, hypoglycaemic, gastro- and hepatoprotective and antioxidative properties. Pharmacological properties of fenugreek have been explored to identify a role for the plant in diabetes management and in cardiovascular health, indicating the presence of bioactive compounds in fenugreek, which may be responsible for its health benefits.- انتشار مقاله: 12-05-1395
- نویسندگان: Ayah Rebhi Hilles,Syed Mahmood
- مشاهده