Academic literature on the topic 'Impression 3D – Biotechnologie'

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Journal articles on the topic "Impression 3D – Biotechnologie"

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Soliman, Mai, Alhanoof Aldegheishem, Norah Alsubaie, Razan Alshamrani, and Elzahraa Eldwakhly. "Dimensional Accuracy of Working Dies Fabricated by Different Impression Materials and Techniques: 3D Digital Assessment." Journal of Biomaterials and Tissue Engineering 11, no. 1 (2021): 106–11. http://dx.doi.org/10.1166/jbt.2021.2552.

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Accuracy of dental impression plays a significant role in the success of definitive restorations. This study aimed to compare the dimensional accuracy of working dies fabricated using two different impression materials and techniques. Forty working dies fabricated from 40 impressions of preprepared mandibular first molar tooth replica stabilized in a jaw model to receive full coverage crown. Two different Polyvinyl siloxane (PVS) impression materials were used; Aquasil and Virtual. Two different impression techniques were used with each type of impression material; One-step and two-step. The w
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Ray, Marie-Céline. "Les nouvelles technologies au service de la santé." Questions internationales 91-92, no. 3 (2018): 83–92. http://dx.doi.org/10.3917/quin.091.0083.

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Biotechnologies appliquées à la médecine, nouvelles technologies de l’information avec l’e-santé, robotique chirurgicale, impression 3D…, les nouvelles technologies dans le domaine de la santé prennent des formes multiples. Derrière certaines de ces innovations, comme la modification du vivant ou l’utilisation des mégadonnées en santé, émergent de nouvelles questions éthiques .
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Alqahtani, Sultan Awad Hasan. "Enhancing dental practice." Brazilian Journal of Oral Sciences 23 (September 27, 2024): e0240115. http://dx.doi.org/10.20396/bjos.v23i00.8674785.

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Digital technology offers many opportunities and challenges across various domains. Aim: This comprehensive review explores the transformative impact of digitalization on dental practices, encompassing digital Imaging, 3D printing, intraoral scanners, teledentistry, Artificial Intelligence, CAD-CAM technology, and virtual reality. Methods: A rigorous search was conducted across various electronic bases, including PubMed, Google Scholar, Scopus, and the National Center for Biotechnology Information (NCBI). The search employed keywords such as “Orthodontics,” “Dental Health,” “Dental Imaging,” “
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Al-Aali, Khulud A., Abeer R. Alshehri, Hiba R. Talic, Ayaan A. Magan, and Felwa K. Alhomody. "Dimensional Accuracy of 3D-Printed, Digital and Conventional Stone Dental Cast of Dentate Patients Using Arch and Teeth Measurements." Journal of Biomaterials and Tissue Engineering 13, no. 7 (2023): 803–7. http://dx.doi.org/10.1166/jbt.2023.3316.

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Aim: This study aimed to compare the conventional, digital, and three-dimensional (3D)-printed casts in terms of their accuracy in quantifying arch and teeth measurements. Materials and Methods: The conventional casts were prepared using polyether dental impressions. Digital impressions of the typodont reference casts were accomplished using an intra-oral scanner. The digital casts were first converted to stereolithography (STL) files which were then edited, and printed using an SLA printer and photo-polymer resin material. The measurements of the first two groups were completed using a digita
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Kustrzycka, Dorota, Tim Marschang, Marcin Mikulewicz, and Wojciech Grzebieluch. "Comparison of the Accuracy of 3D Images Obtained fromDifferent Types of Scanners: A Systematic Review." Journal of Healthcare Engineering 2020 (December 14, 2020): 1–7. http://dx.doi.org/10.1155/2020/8854204.

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Introduction. The purpose of this systematic review was to compare the accuracy of the three-dimensional images among different scanners, scanning techniques, and substrates. Materials and methods. Electronic databases (PubMed and Elsevier) were searched until March 2020. The systematic search was performed to identify the most precise method of obtaining a 3D image of the dentition. Results. Thirteen articles out of 221, considering the accuracy of 3D images, were selected. The main factors that are considered to have an influence on the precision are substrate type in the oral cavity, experi
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Salmi, Mika, Kaija-Stiina Paloheimo, Jukka Tuomi, Tuula Ingman, and Antti Mäkitie. "A digital process for additive manufacturing of occlusal splints: a clinical pilot study." Journal of The Royal Society Interface 10, no. 84 (2013): 20130203. http://dx.doi.org/10.1098/rsif.2013.0203.

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The aim of this study was to develop and evaluate a digital process for manufacturing of occlusal splints. An alginate impression was taken from the upper and lower jaws of a patient with temporomandibular disorder owing to cross bite and wear of the teeth, and then digitized using a table laser scanner. The scanned model was repaired using the 3D ata E xpert software, and a splint was designed with the V iscam RP software. A splint was manufactured from a biocompatible liquid photopolymer by stereolithography. The system employed in the process was SLA 350. The splint was worn nightly for six
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Niu, Tianqi, Qifan Xue, and Hin-Lap Yip. "Advances in Dion-Jacobson phase two-dimensional metal halide perovskite solar cells." Nanophotonics 10, no. 8 (2020): 2069–102. http://dx.doi.org/10.1515/nanoph-2021-0052.

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Abstract Low-dimensional metal halide perovskites have emerged as promising alternatives to the traditional three-dimensional (3D) components, due to their greater structural tunability and environmental stability. Dion-Jacobson (DJ) phase two-dimensional (2D) perovskites, which are formed by incorporating bulky organic diammonium cations into inorganic frameworks that comprises a symmetrically layered array, have recently attracted increasing research interest. The structure-property characteristics of DJ phase perovskites endow them with a unique combination of photovoltaic efficiency and st
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ANDRÉ, Jean-Claude. "Impression 3D : niches applicatives porteuses." Fabrication additive – Impression 3D, April 2017. http://dx.doi.org/10.51257/a-v1-bm7970.

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Swain, Nilimapriyadarsini, Saravanakumar Balasubramaniam, and Ananthakumar Ramadoss. "Effective Energy Storage Performance Derived from 3D Porous Dendrimer Architecture Metal Phosphides//Metal Nitride‐Sulfides." Small, February 5, 2024. http://dx.doi.org/10.1002/smll.202309800.

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AbstractThe present work addresses the limitations by fabricating a wide range of negative electrodes, including metal nitrides/sulfides on a 3D bimetallic conductive porous network (3D‐Ni and 3D‐NiCo) via a dynamic hydrogen bubble template (DHBT) method followed by vapour phase growth (VPG) process. Among the prepared negative electrodes, the 3D‐Fe3S4‐Fe4N/NiCo nanostructure demonstrates an impressive specific capacitance (Cs) of 1125 F g−1 (2475 mF cm−2) at 1 A g−1 with 80% capacitance retention over 5000 cycles. Similarly, a 3D‐Mn3P nanostructured positive electrode fabricated via electrode
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Yu, Diwen, Kaixuan Guo, Fengxiao Hou, et al. "Ti─O─C Bonding at 2D Heterointerfaces of 3D Composites for Fast Sodium Ion Storage at High Mass Loading Level." Small, April 18, 2024. http://dx.doi.org/10.1002/smll.202312167.

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Abstract3D composite electrodes have shown extraordinary promise as high mass loading electrode materials for sodium ion batteries (SIBs). However, they usually show poor rate performance due to the sluggish Na+ kinetics at the heterointerfaces of the composites. Here, a 3D MXene‐reduced holey graphene oxide (MXene‐RHGO) composite electrode with Ti─O─C bonding at 2D heterointerfaces of MXene and RHGO is developed. Density functional theory (DFT) calculations reveal the built‐in electric fields (BIEFs) are enhanced by the formation of bridged interfacial Ti─O─C bonding, that lead to not only fa
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Dissertations / Theses on the topic "Impression 3D – Biotechnologie"

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Abou, Nassif Lea. "Développement de bioencres naturelles enrichies par les composants de la gelée de Wharton pour la bioimpression 3D." Electronic Thesis or Diss., Reims, 2024. http://www.theses.fr/2024REIMS041.

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La bioimpression 3D est une technologie prometteuse pour la médecine régénératrice, permettant de concevoir des structures biomimétiques à l’aide de bioencres. Cette thèse se concentre sur le développement de bioencre(s) bioactive(s), enrichie(s) par des composants de la gelée de Wharton (GW). L’hydrogel formé à partir des composants de la GW, n’étant pas imprimable, a été combiné à des polymères naturels, tels que l’alginate et la gélatine, créant une bioencre thermosensible. Les paramètres d’impression, notamment la température et la pression, ont été optimisés pour assurer une meilleure pré
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