Concept

Dent (anatomie humaine)

Publications associées (35)

The grinding tip of the sea urchin tooth exhibits exquisite control over calcite crystal orientation and Mg distribution

The sea urchin tooth is a remarkable grinding tool. Even though the tooth is composed almost entirely of calcite, it is used to grind holes into a rocky substrate itself often composed of calcite. Here, we use 3 complementary high-resolution tools to probe ...

2009

Mechanical response of periodontal ligament: Effects of specimen geometry, preconditioning cycles and time lapse

John Botsis, Marzio Bergomi

This study was conducted as part of research line addressing the mechanical response of periodontal ligament (PDL) to tensile-compressive sinusoidal loading The aim of the present project was to determine the effect of three potential sources of variabilit ...

2009

Regional structural characteristics of bovine periodontal ligament samples and their suitability for biomechanical tests

Marzio Bergomi

Mechanical testing of the periodontal ligament requires a practical experimental model. Bovine teeth are advantageous in terms of size and availability, but information is lacking as to the anatomy and histology of their periodontium. The aim of this study ...

2008

Experimental and numerical investigations on the fluid contribution to the tensile-compressive mechanical behavior of the bovine periodontal ligament

Marzio Bergomi

Orthodontic treatments are all based on the experimental evidence that teeth can be forced to move in the dental arch by means of applied mechanical forces. Since it allows for prediction of dental mobility, the mechanical characterization of the tissues i ...

EPFL2008

Mechanisms of 3-D migration and matrix remodeling of fibroblasts within artificial ECMs

Matthias Lütolf, Jeffrey Alan Hubbell

The elucidation of molecular cell-extracellular matrix (ECM) interactions regulating tissue dynamics necessitates straightforward model systems that can dissect the associated physiological complexity into a smaller number of distinct interactions. Here we ...

2007

Brushless DC motor optimization process - Choice between standard or straight tooth shape

Yves Perriard, Patrick Ragot, Miroslav Markovic

In order to create a new solar aircraft totally powered by the sun, a new method able to handle such a complex system must be developed. The project aim is to make a round-the-world flight in so as to promote the sustainable development. The aircraft power ...

2006

An exact formula for "tooth-to-tooth" permeance

Yves Perriard, Marcel Jufer, Miroslav Markovic

We present a new, completely original exact method to determine the permeance between two opposing iron teeth. This configuration is important because it is often encountered in electrical machines and apparatus. The method is based on conformal mapping. T ...

2005

The effect of bisphosphonates and titanium particles on osteoblasts: an in vitro study

Dominique Pioletti, Bastian Peter

In an attempt to increase the life of cementless prostheses, an hydroxyapatite-coated implant which releases a bisphosphonate has been suggested as a drug-delivery system. Our in vitro study was designed to determine the maximum dose to which osteoblasts c ...

2005

Biocompatibility of bioresorbable poly(L-lactic acid) composite scaffolds obtained by supercritical gas foaming with human fetal bone cells

Dominique Pioletti, Pierre-Etienne Bourban, Boris Hinz

The aim of this investigation was to test the biocompatibility of three-dimensional bioresorbable foams made of poly(L-lactic acid) (PLA), alone or filled with hydroxyapatite (HA) or beta-tricalcium phosphate (beta-TCP), with human primary osteoblasts, usi ...

2005

In vivo calcium deposition on polyvinyl alcohol matrix used in hollow fiber cell macroencapsulation devices

Patrick Aebischer, Nicolas Bouche

The encapsulation of genetically modified cells represents a promising approach for the delivery of therapeutic proteins. The functionality of the device is dependent on the characteristics of the biomaterials, the procedures used in its confection and the ...

2004

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