Thiol-ene photopolymerizations gain a growing interest in academic research. Coatings and dental restoratives are interesting applications for thiol-ene photopolymerizations due to their unique features. In most studies the relative flexible and hydrophilic ester derivative, namely pentaerythritoltetra(3-mercaptopropionate) (PETMP), is investigated as the thiol component. Thus, in the present s...

The frequency-response curve of isolated canine arterial segments at transmural pressures between 140 and 40 mm Hg showed an initial constant-amplitude portion over the lower frequency range followed by one or two major amplitude peaks (resonances) at higher frequencies. At lower transmural pressures, the response was more damped and resonances were infrequent. The amplitude of the flat portion...

The equine laminar junction plays a vital role in transferring the forces of weight-bearing between the epidermal hoof wall and the bone of the third phalanx, but the way in which it performs this function is poorly understood. Using samples from sites varying proximodistally and circumferentially around the hoof, the stress/strain behaviour of this tissue was characterised in three directions:...

Abstract The paper presents the correlation between flexural strength and modulus of elasticity with respect to compressive ternary concrete (TC), made by incorporating Micro silica (5% 15%) Ground granulated blast furnace slag (20% 50%) considering w/b=0.55. A total twelve mixes one conventional mix were prepared identify optimum mix. Flow characteristics properties (compression, rupture elast...

Six thermoplastic resins and conventional acrylic resin were examined to characterize their mechanical and physical properties, water sorption, solubility, flexural strength, modulus of elasticity, tensile strength and color stability. Thermoplastic resins for non-metal clasp dentures exhibiting low water sorption and solubility offer hygienic advantages. Since they have a low modulus of elasti...

The aim of the present study was to evaluate the fracture resistance of teeth restored with resin composite. Forty-eight maxillary premolar teeth were chosen and randomly divided to six groups: G1 (control): sound teeth; G2: MOD preparation, unrestored; G3: MOD + Adper Single Bond 2/P60; G4: MOD + Adper Easy One/P60; G5: MOD + P90 restorative system; G6: MOD + Adper Easy One/P90 Bond/P90. Speci...

Almfrmt-The relations of II ‘mate tensile stress and strain and modulus of elasticity to 2 col@en fiber orieatotioa an dtgrue of calcifkation were studied in thirty-six standardized specimens of unembahned cortical bone from adult human tibias. Highly significant positive comhtionswmfoundkovtcnt~tsatssandsrrrir!aad~afdukoneonsiatbe break area. A similar correlation occurred brrtween tensile sti...

The aim of this study is to determine the change of some physical properties (oven-dry density, weight loss, swelling and anti-swelling efficiency) and mechanical properties (compression strength parallel to grain, bending strength, modulus of elasticity in bending, janka-hardness (cross-section, radial, tangential), impact bending strength and tension strength perpendicular to grain) of wild c...

The response of a neo-Hookean fiber composite undergoing finite out-of-plane shear deformation is examined. To this end an explicit close form solution for the out-of-plane shear response of a cylindrical composite element is introduced. We find that the overall response of the cylindrical composite element can be characterized by a fictitious homogeneous neo-Hookean material. Accordingly, this...

OBJECTIVES The complexity and heterogeneity of human bone, as well as ethical issues, frequently hinder the development of clinical trials. The purpose of this in vitro study was to determine the modulus of elasticity of a polyurethane isotropic experimental model via tension tests, comparing the results to those reported in the literature for mandibular bone, in order to validate the use of su...