DARQUE-CERETTI , Evelyne

Liquid droplets having different polar natures were located above a polarized substrate; their shapes revealed the influence of the polarization state of the substrate. From the contact angle of a resting droplet on this substrate, one deduces the effect of a previous chemical treatment applied to the surface of the substrate.

For a fundamental approach to fibres for composite applications, it is essential to develop efficient methods to analyse the composition and distribution of the sizing layer on the fibres. The aim of this investigation is to propose a combination of methods for surface characterization of manufactured finished fibres. The task is not...

Carbon fibre plates (20 x 5 mm) were characterised by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray-induced photoelectron spectroscopy (XPS). The 90 degrees peeling test was used (0.5 mm s(-1)) at the carbon fibre Panavia F-(R) interface. The fracture interfaces were analysed using both SEM and EDS....

National audience

Introduction: The aim of this "in vitro" study was to evaluate the role of surface tension and surface roughness in the wettability, considered essential for a good adhesion, comparing Er:YAG laser - to bur-prepared dentin. Materials and Methods: Dentin surfaces of third human molars were Er:YAG laser- and bur-prepared to evaluate the effects...

Introduction: The aim of this "in vitro" study was to evaluate the role of surface tension and surface roughness in the wettability, considered essential for a good adhesion, comparing Er:YAG laser - to bur-prepared dentin. Materials and Methods: Dentin surfaces of third human molars were Er:YAG laser- and bur-prepared to evaluate the effects...

This paper proposes an implementation of a learning system for training of engineers to material observation and analysis. First, we present the objectives of this application. Then, we propose a decomposition of the system in modules and we describe the knowledge representation and the software architecture. Last, we illustrate the...

The aim of this study was to finalise a 90° peeling test on 60 human teeth. The dentinal surfaces to be stuck were characterised by micro-hardness, wettability, optical microscopy, SEM, AFM, XPS and EDS. The so-called fifth-generation bonding agent (Prime & Bond(®) 2.1 DeTrey Dentsply) was used to perform the peeling-test. The extremity of a...

The aim of this study is to determine the influence of different characteristic parameters of the human dentine surface on the interaction between dentine and adhesive resin. The dentine surface of 21 freshly extracted teeth (from patients between the ages of 13 and 77 years old) was treated with Total Etch (Vivadent etching gel) and...

The main aim of this study was to determine the viscosity of four amelo-dentinal adhesives based on the same adhesion principles: the complete elimination of the dentinal smear layer using a 37% orthophosphoric acid and the building of a hybrid layer in a single stage. The secondary aim was to study the filling time for a tubulus using 2...

Lithium disilicate and Zirconia ceramics offer a high level of accuracy when used in prosthetic dentistry. Their bonding using different resins is highly dependent on micro-mechanical interlocking and adhesive chemical bonding. Investigation of the performances of high strength ceramics when their surface is modified for chemical and mechanical...

Objective: This study was conducted to study the role of pulpal pressure on the shear bond strength of composite resin bonded to Er:YAG laser-prepared or bur-prepared dentine surfaces using a self-etching adhesive system. Materials and Methods: The occlusal surfaces of 80 human third molars were ground flat to expose the dentine. The dentine...

Rosin and beeswax are two complex natural materials presenting numerous applications in paints, adhesives, varnishes or inks. Melted, they are particularly interesting for their adhesion properties. This paper establishes the first phase diagram beeswax/rosin blends. A systematic approach using X-ray diffraction (XRD), differential scanning...

Lithium disilicate and Zirconia ceramics offer a high level of accuracy when used in prosthetic dentistry. Their bonding using different resins is highly dependent on micro-mechanical interlocking and adhesive chemical bonding. Investigation of the performances of high strength ceramics when their surface is modified for chemical and mechanical...

With the aim of providing better control of shooting experiments performed with replicas of prehistoric projectiles, we have conducted an instrumental archaeology study on the efficiency of prehistoric projectile points by placing emphasis on their adhesion and ballistic characteristics. In order to avoid any reproducibility problems, hafting...

La dénutrition est aggravée par un mauvais état dentaire. Une société a mis au point un complément nutritionnel oral (CNO) de texture solide, adapté aux personnes dénutries ou à risque de dénutrition quel que soit l'état dentaire. Il s'agit de petites galettes hyperprotidiques hyperénergétiques. Ce travail a permis d'évaluer l'acceptabilité, le...

Early Western Mediterranean Impressed Wares (Early 6th millennium BCE): new interdisciplinary research on pottery paste processing at Pendimoun rock-shelter (Alpes-Maritimes, France)