DENT'IN - Research project

Dental repair is a medical act undergone by the majority of the population in which the aesthetic dimension is essential given the central position of the dentition on the human face. For manufacturers of dental composites, product formulation (pigment dosage) remains a real problem to generate a range of shades as wide as that of possible dentitions. For the practitioner, choosing the shade in the office remains a challenge.
Vincent Duveiller's thesis project aims to predict the appearance (color, translucency, whiteness, etc.) of composite materials used for dental repair according to the thickness of the material, the nature and shape of its support (enamel, dentin, etc.) and lighting conditions: direction (s), spectrum, UV, etc. Research is being carried out on the one hand on optical models describing the transport of light in these highly translucent materials, the existing models being too simple to give good prediction accuracy over a wide range of thicknesses. They are also carried out on the rigorous consideration of lighting and observation conditions in the appearance of the products and dentitions, and the design of optical devices adapted to the measurement of these materials. In more ambitious perspectives, a complete reproduction of appearance by manufacturing tools (3D printing) is aimed. Dental materials were chosen as a case study of light transport in translucent and fluorescent multilayer products, one of the specialties of the CMAT team of the Hubert Curien laboratory, as well as for their major societal issue in a medical field which exresses strong appearance management expectations.

• Vincent Duveiller, Arthur Gautheron, Anthony Cazier, Lionel Simonot, Raphaël Clerc, Jean-Pierre Salomon, Mathieu Hebert, "Estimation of the fluorescence emission spectrum of dental composite resin samples of varying thickness" in Electronic Imaging, 2023, pp 190-1 - 190-7
  https://doi.org/10.2352/EI.2023.35.15.COLOR-190
• Vincent Duveiller, Raphaël Clerc, Julien Eymard, Jean-Pierre Salomon, Mathieu Hébert, "Performance of two-flux and four-flux models for predicting the spectral reflectance and transmittance factors of flowable dental resin composites, Dental Materials", Volume 39, Issue 8, 2023, Pages 743-755, ISSN 0109-5641
  https://doi.org/10.1016/j.dental.2023.06.010
• Arthur Gautheron, Raphaël Clerc, Vincent Duveiller, Lionel Simonot, Bruno Montcel, Mathieu Hebert, "Light scattering in translucent layers: angular distribution and internal reflections at flat interfaces" in Proc. IS&T Int’l. Symp. on Electronic Imaging: Color Imaging: Displaying, Processing, Hardcopy, and Applications, 2022, pp 221-1 - 221-6
  https://doi.org/10.2352/EI.2022.34.15.COLOR-221
• Duveiller Vincent, Kim Emmanuel, Locquet Marie, Gautheron Arthur, Clerc Raphaël, Salomon Jean-Pierre, Hébert Mathieu,"Predictions of the Reflectance Factor of Translucent Layered Dental Resin Composites Using Two-Flux Models: assessing the importance of the interface reflectance parameter interface reflectance parameter", in CVCS 2022
  ISSN 1613-0073
• Arthur Gautheron, Raphaël Clerc, Vincent Duveiller, Lionel Simonot, Bruno Montcel, and Mathieu Hébert, "On the validity of two-flux and four-flux models for light scattering in translucent layers: angular distribution of internally reflected light at the interfaces", in Optics Express
  https://library.imaging.org/ei/articles/34/15/COLOR-221
• Vincent Duveiller, Lou Gevaux, Raphaël Clerc, Jean-Pierre Salomon, Mathieu Hebert, "Reflectance and transmittance of flowable dental resin composite predicted by the two-flux model: on the importance of analyzing the effective measurement geometry", in Color and Imaging Conf.,  2020
  https://doi.org/10.2352/issn.2169-2629.2020.28.50
   

• Vincent Duveiller, Arthur Gautheron, Anthony Cazier, Lionel Simonot, Raphaël Clerc, Jean-Pierre Salomon, Mathieu Hebert, "Estimation of the fluorescence emission spectrum of dental composite resin samples of varying thickness" in Electronic Imaging, 2023, pp 190-1 - 190-7
  https://doi.org/10.2352/EI.2023.35.15.COLOR-190
• Vincent Duveiller, Emmanuel Kim, Marie Locquet, Arthur Gautheron, Raphael Clerc, et al.. Predictions of the reflectance factor of translucent layered dental resin composites using two-flux models: assessing the importance of the interface reflectance parameter. Colour and Visual Computing Symposium 2022, Sep 2022, Gjøvik, Norway.
  ⟨hal-03792814⟩
• Arthur Gautheron, Raphaël Clerc, Vincent Duveiller, Lionel Simonot, Bruno Montcel, et al.. Light scattering in translucent layers: angular distribution and internal reflections at flat interfaces. 34 (15), pp.221-1-221-6, 2022, ⟨10.2352/EI.2022.34.15.COLOR-221⟩.
  ⟨hal-03533893⟩
• Vincent Duveiller, Lou Gevaux, Raphaël Clerc, Jean-Pierre Salomon, Mathieu Hebert. Reflectance and transmittance of flowable dental resin composite predicted by the two-flux model: on the importance of analyzing the effective measurement geometry. Color and Imaging Conference, 2020, 28 (1), pp.313-320. ⟨10.2352/issn.2169-2629.2020.28.50⟩
  ⟨hal-04122161⟩