Publications by authors named "R Richert"

Article Synopsis
  • Physical vapor deposition creates organic glasses with high kinetic stability, which can slowly transition to supercooled liquids when heated.
  • The study investigates the rejuvenation of vapor-deposited methyl-m-toluate glasses after 6 hours of annealing at a temperature close to their glass transition temperature (Tg), finding moderate glasses show rejuvenation, while highly stable glasses do not show expected changes.
  • Surprisingly, annealing lead to increased storage component of dielectric susceptibility in stable glasses without increases in the loss component, indicating short-term rejuvenation affects high-frequency relaxation processes; simulations showed no rejuvenation in similarly stable glasses within the same time frame.
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Introduction: Access cavity preparation is a crucial step in root canal treatment but is one of the most complex procedures in the curriculum to learn, with students often reporting spatial orientation difficulties during drilling. The present study aimed to evaluate the influence of spatial abilities on the preparation of endodontic access cavities among third-year dental students.

Materials And Methods: Students from Lyon dental faculty participated voluntarily.

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Artificial intelligence systems (AISs) gain relevance in dentistry, encompassing diagnostics, treatment planning, patient management, and therapy. However, questions about the generalizability, fairness, and transparency of these systems remain. Regulatory and governance bodies worldwide are aiming to address these questions using various frameworks.

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Objectives: Oral appliance (OA) has been increasingly used for the treatment of obstructive sleep apnoea hypopnea syndrome (OSAHS). OAs work by propelling the mandible, increasing the upper airway calibre and reducing collapsibility. While they have shown efficacy in reducing OSAHS, long-term use can lead to adverse effects, such as dental displacement.

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Objective: This article reviews the applications of Finite Element Models (FEMs) in personalized dentistry, focusing on treatment planning, material selection, and CAD-CAM processes. It also discusses the challenges and future directions of using finite element analysis (FEA) in dental care.

Data: This study synthesizes current literature and case studies on FEMs in personalized dentistry, analyzing research articles, clinical reports, and technical papers on the application of FEA in dental biomechanics.

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