UNLABELLED The denture bases made by using polymethyl methacrylates of Acrylic resin family have excellent physical properties, simple to process and easy to reline, rebase and repair. One of the inherent disadvantages of this material is the liability to break during function. The strength assessment of acrylic resins have been made generally by transverse defection tests. AIM To evaluate th...

This paper attempt to predict the shear strength of high strength concrete beam with different shear span of depth ratio without web reinforcement. The large data base available has been clustered and a linear equation analysis has been performed . The prepared models are functions of compressive strength , percentage of flexural reinforcement and depth of beam. The proposed models have been va...

We produced experimentally a new bonding material that consisted of a mixture of a base resin (4-META/MMA-TBB resin adhesive) and thermoexpandable microcapsules for safe, easy debonding. Microcapsules in the base resin would start expansion at 80 degrees C, leading to a remarkable decrease in bond strength. Stainless steel brackets were bonded to bovine permanent mandibular incisors using bondi...

Objectives: To compare the bond strength of printed and conventionally produced denture base resins to reline after being submitted a physical-chemical aging process. Methods: Sixty specimens (10×10×3.3 mm) two (V-Print Dentbase Denture 3D+) one (Probase Hot) were relined with acrylic resins: Ufi Gel Hard C Probase Cold (n=10). The 1000 cycles thermal fluctuations (5-55ºC) 28 days pH using pH=3...

Metal manufacturing produces various types of byproducts and metal waste that have been growing exponentially. The increasing amounts are usually disposed in landfills, which causes soil water pollution increases the amount gas emissions. On other hand, field pavement construction, demand for natural materials is rather rapidly. Many studies suggested utilizing aggregate-like material but there...