To cite: Goswami M, Chattopadhyay S, Arora R, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2012008419 DESCRIPTION Treating the patient with amelogenesis imperfecta is important for functional and psychosocial reasons, especially when the child is suffering with the anomaly in its primary as well as permanent teeth as such conditions cause a deep psycholo...

High-entropy (HE) ceramics, by analogy with HE metallic alloys, are an emerging family of multielemental solid solutions. These materials offer a large compositional space, corresponding range properties. Here, we report the experimental realization 3D MAX phase, Ti1.0V0.7Cr0.05Nb1.0Ta1.0AlC3, and 2D MXene in form freestanding flakes average composition Ti1.1V0.7CrxNb1.0Ta0.6C3Tz (Tz = −F, −O, ...

In this paper we present a novel laminate parametrization technique for layered composite structures that can handle problems in which the ply angles are limited to a discrete set. In the proposed technique, the classical laminate stiffnesses are expressed as a linear combination of the discrete options and design-variable weights. An exact `1 penalty function is employed to drive the solution ...

During clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using the indirect laminate veneer techniqu...

OBJECTIVES Based on a maxillary premolar restored with laminate veneer and using the 3-D finite element analysis (FEA) and μCT data, the aim of this study was to evaluate the influence of different types of buccal cusp reduction on the stress distribution in the porcelain laminate veneer and in the resin luting cement layer. METHODS Two 3-D FEA models (M) of a maxillary premolar were built fr...

Determination of the local interlaminar stress distribution in a laminate with a bolt-filled hole is helpful for optimal bolted joint design, due to the three-dimensional (3D) nature of the stress field near the bolt hole. A new interlaminar stress distribution phenomenon induced by the bolt-head and clamp-up load, which occurs in a filled-hole composite laminate, is investigated. In order to e...

An approximate method is presented to investigate Mgy the interlaminar stresses near the free edges of composite N laminate plates that are subjected to a combined NI~ thermo-mechanical loading. The method is based upon N~ admissible function representations of stresses which account Q!~) for the effects of both the global mismatches and the local ,~!k/ mismatches in two of the elastic properti...

Laminate structures incorporating thin layers of metal and polymer, or polymer composite, can offer significant weight savings for engineering structures, while retaining excellent mechanical and impact performance. Laminates based on thin layers of aluminum and glassfiber/polypropylene thermoplastic have been the subject of recent study [1, 2], and have exhibited excellent specific mechanical ...