Bulk metallic glasses (BMGs) are non-crystalline class of advanced materials and have found potential applications in the biomedical field. Although there numerous conventional manufacturing approaches for processing BMGs, most commonly used like copper-mould casting some limitations. It is not easy to manage control critical cooling rate, especially when fabrication complex BMG geometries invo...

Background and Aim: The conventional procedure for removal of porcelain laminate veneers (PLVs) is time-consuming and inconvenient. The purpose of this study was to evaluate the efficacy of Er:YAG laser for debonding of PLVs. Materials and Methods: Forty-eight intact extracted human maxillary anterior teeth received discoid PLVs (24 feldspathic and 24 e-max ceramic). The PLVs had 0.7 mm thickn...

Laser bending is an advanced process in sheet metal forming in which a laser heat source is used to shape the metal sheet. In this paper, temperature distribution in a mild steel sheet metal is investigated numerically and experimentally. Laser heat source is applied through curved paths in square sheet metal parts. Finite element (FE) simulation is performed with the ABAQUS/CAE standard softwa...

With the introduction of flexible bronchoscopies, several techniques and accessories have been available for the removal of foreign bodies (FB). However, in some cases, using conventional techniques are inappropriate and fail to remove the FB. Here we report a case of a 33-year-old male with 19 years foreign body aspiration history. A successfully removal of the ingrown FB was achieved by means...

The use of software in medical devices and their accessories has led to significant improvements in clinical diagnosis and treatment of a vast range of illnesses. However, to benefit patients and users, device-related software must be properly developed and tested before use. This article discusses a United States guidance document that describes the type of documentation needed to show that th...

Background Recently, the clinical use of low power lasers has increased, and it is said that wound healing is accelerated by their irradiation. The aim of this study was evaluation of the effect of platelet-rich plasma on proliferation and differentiation of human dental pulp stem cells with or without Ga-Al-As laser. Methods: In this experimental study, human lower third molar dental pulp c...

This work encourages the exercise of consideration, observation and critical reading of the design of handbags and the relation to the conditions imposed by tropical climate. Our purpose is to highlight some critical and conceptual thoughts on the matter of the design of fashion accessories in Brazil, ergonomics and aesthetic- functional relation. Through physical concepts is possible to propos...