Effect of Cumulative Ionizing Radiation on Flexural Strength, Flexural Modulus, and Elasticity Modulus of Dentin in Unerupted Human Third Molars. [PDF]
This in vitro study aimed to investigate the changes in mechanical properties in dentin of third molars after radiation therapy using variable doses and frequencies.Rectangular cross sectioned dentin hemisections (N = 60, n = 15 per group; >7 × 4 × 1.2 mm) were prepared using extracted third molars.
Al-Haj Husain N +6 more
europepmc +6 more sources
Flexural modulus, flexural strength, and stiffness of fiber-reinforced posts
Background: The radiopacity degree of posts is not enough for adequate visualization during radiographic analyses. Glass fiber post with stainless steel reinforcement has been fabricated in an attempt to overcome this limitation.
Novais Veridiana +4 more
doaj +3 more sources
Flexural strength, flexural modulus and microhardness of milled vs. fused deposition modeling printed Zirconia; effect of conventional vs. speed sintering [PDF]
Background Various methods can be used for creating zirconia dental restorations, including 3-dimensional (3D) printing and computer-aided design/ computer-aided manufacturing (CAD/CAM) milling.
Maher S. Hajjaj +6 more
doaj +2 more sources
Aim: This study aimed to evaluate the flexural strength and flexural modulus of different resin composites (MasterFill, Opallis, Z250, Supreme) after photoactivation with quartz-tungsten-halogen (QTH - XL2500) or light-emitting diode (LED - Radii and ...
William Cunha Brandt +4 more
doaj +2 more sources
Some mechanical properties of WPCs with wood flour and walnut shell flour [PDF]
This study used a high-density polyethylene (HDPE) polymer matrix, pine-wood flour (PWF) and walnut-shell flour (WSF) to produce wood-plastic composite (WPC) boards. The PWF and WSF filler amounts were adjusted to 20%, 30%, and 40% by weight. Some of the
Bekir Cihad Bal
doaj +1 more source
THE MECHANICAL BEHAVIOR OF POLYMER COMPOSITES REINFORCED BY NATURAL MATERIALS
the waste natural such as groundnut shell, rice husk, eggshell, pistachio shells, etc., are regionally available. All these waste natural has good mechanical characteristics and can be employed more efficiently in the improvement of composite materials ...
Rusul S. Hadi, Hwazen S. Fadhil
doaj +3 more sources
Thermoplastic polymer blend as novel material for denture base
Aim or Purpose: To develop new polymer blend, the glass transition temperature (Tg) and flexural properties including flexural strength and flexural modulus of thermoplastic polymer blend between poly(methyl methacrylate) and poly(lactic acid) (PMMA/PLA ...
Asst. Prof. Taksid Charasseangpaisarn +2 more
doaj +1 more source
Mechanical and Water Absorption Characteristics of Sisal Fiber Reinforced Polypropylene Composite
The aim of this study is to investigate the effect of fiber loading on mechanical and water absorption characteristics of composites made from sisal fiber and polypropylene matrix targeted for use in bathroom wall tile applications.
Eyasu Ferede, Desalegn Atalie
doaj +1 more source
Modelling the flexural properties of filled epoxy: Effects of volume fraction [PDF]
The effects of volume fraction on the flexural characteristics of epoxy materials filled with cement, fly ash, and CaCO3 are discussed in this work. At a temperature of 50oC, water was used to soak the filled epoxies.
Sugiman Sugiman +3 more
doaj +1 more source
Flexural Properties of Functionally Graded Polymer Alumina Nanoparticles [PDF]
In this paper, a functionally graded polymer nanocomposite (FGPNC) was arranged via mixing the Alumina (Al2O3) nanoparticles (50 – 100 nm) with an epoxy matrix through five layers of 1.2 mm thickness for each layer using hand lay–up technique.
Mahdi Shareef +2 more
doaj +1 more source

