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Há 2 dias · Download chapter PDF. All biomaterials, including metals, ceramics, polymers, and composites used in orthopedics, dentistry, cardiovascular, or other medical applications, and even hydrogels that contain large amounts of water in their structures, are solid. Chemical, physical, thermal, electrical, and mechanical properties of these ...
Há 5 dias · The key factors that determine the performance of joint prostheses are the materials used and the structural design of the prosthesis. This study aimed to fabricate a porous tantalum (Ta) hip prosthesis using selective laser melting (SLM) technology.
Há 2 dias · Previously, orthopedic implants were designed simply as mech. devices; the biol. aspects of the implant were a byproduct of stable internal/external fixation of the device to the surrounding bone or soft tissue. More recently, biol. coatings have been incorporated into orthopedic implants in order to modulate the surrounding biol. environment.
Há 3 dias · Additionally, some light-curing devices, such as the Valo, feature large-area light tips (8 mm in this specific model), capable of covering the entire body of the bracket and its surroundings. This feature enables the light to reach all sides of the bracket, even when not directed directly.
Há 2 dias · In this chapter, the fundamental properties of solid materials such as bond types, electrical and thermal properties, and the forms they can take are presented. The interactions between atoms, formation of chemical bonds, and some physical properties are specially mentioned.
Há 2 dias · A PMMA contact lens, which does not transmit sufficient oxygen and causes hypoxia in the corneal tissue under the lens, is not completely biocompatible, while a poly (hydroxyethyl methacrylate) (PHEMA) contact lens that allows plenty of oxygen transfer is more biocompatible. Download chapter PDF.
Há 3 dias · In clinical practice, dentists face alveolar bone loss that needs to be managed by bone grafts. The basic bone grafting materials are autograft, allograft, xenograft, and alloplasts. Autografts are gold standard because it has osteoconduction osteoinduction osteogenic. However, they possess risk for the morbidity of the donor site and limited availability. Allograft have possibility of disease ...
