From tissue to silicon to plastic: three-dimensional printing in comparative anatomy and physiology

Lauridsen, Henrik; Hansen, Karl B.; Nørgård, Mathias Ørum; Wang, Tobias; Pedersen, Michael

doi:10.1098/rsos.150643

Cited by 23 publications

(22 citation statements)

References 21 publications

(51 reference statements)

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“…As a remedy, 3D virtual models can now also be made accessible to dental students as custom-made and scaled physical objects through additive manufacturing (AM), thus providing students with a genuinely 3D interpretive experience [106,107]. AM is a process by which different types of material can be added layer-by-layer to produce a 3D object [108] and is increasingly being used in the life sciences [109][110][111].…”

Section: Additive Manufacturing Of Three-dimensional Human Tooth Modelsmentioning

confidence: 99%

Three-dimensional imaging of internal tooth structures: Applications in dental education

Kato

Ziegler

Utsumi

et al. 2016

Journal of Oral Biosciences

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BackgroundProviding comprehensive knowledge of the anatomy of human teeth is one of the basic functions of dental education, because a thorough understanding of their internal structure is one of the prerequisites for any successful clinical intervention. Several techniques have traditionally been employed to study and visualize the complex internal organization of human teeth. In contrast to these invasive techniques, modern imaging systems permit non-invasive analyses of the three-dimensional structure of human teeth. Owing to the relative ease of acquisition, handling, and distribution of the respective data, digital imaging techniques will also significantly influence dental education. HighlightIn this article, a broad overview of traditional and modern techniques for the visualization of internal tooth structures is provided. Emphasis is placed on micro-computed tomography systems and their application in endodontics. In addition, 3 the results derived from a comparison of histology and micro-computed tomography are presented. Apart from its utility in basic research, digital data can also be employed to create interactive three-dimensional models that are particularly suitable for teaching purposes. ConclusionNon-invasive, three-dimensional imaging techniques, in particular the various modalities of computed tomography, have ushered in a new era of endodontic studies.Owing to their digital nature, the results derived from these techniques can not only be easily analyzed and distributed but also be rapidly integrated into the teaching materials. Recent studies as well as the data shown in the present contribution suggest that digital educational materials lead to an improved understanding of the complex anatomy of human teeth.

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Section: Additive Manufacturing Of Three-dimensional Human Tooth Modelsmentioning

confidence: 99%

Three-dimensional imaging of internal tooth structures: Applications in dental education

Kato

Ziegler

Utsumi

et al. 2016

Journal of Oral Biosciences

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“…The uses of 3-D models have made significant changes in the way science is done. For instance, specimens in the past were analyzed in large part through standard, 2-D photographs (Lauridsen et al, 2016). Thanks to 3-D data available today, not only do scientists have the opportunity to produce high fidelity descriptions, but K-12 students can also learn complex concepts, e.g., evolution and extinction, by visually analyzing changes that occur over time (Boyer et al, 2017).…”

Section: Implementing 3-d Scanning Printing and Paleontology In K-12mentioning

confidence: 99%

3-D FOSSILS FOR K–12 EDUCATION: A CASE EXAMPLE USING THE GIANT EXTINCT SHARKCARCHAROCLES MEGALODON

Grant¹,

MacFadden²,

Antonenko³

et al. 2016

Paleontol. Soc. Pap.

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ABSTRACT.-Fossils and the science of paleontology provide a charismatic gateway to integrate STEM teaching and learning. With the new Next Generation Science Standards (NGSS), as well as the exponentially increasing use of three-dimensional (3-D) printing and scanning technology, it is a particularly opportune time to integrate a wider variety of fossils and paleontology into K-12 curricula. We describe a curricular prototype that integrates all four components of STEM (Science, Technology, Engineering, Math) into authentic research using dentitions of the Neogene giant shark Megalodon (Carcharocles megalodon Agassiz, 1843). This prototype has been implemented in two middle and two high schools in California and Florida. Consistent with prior evidence-based research, student engagement increases when they have hands-on experiences with fossils, particularly with a charismatic species such as Megalodon. Access to museum specimens helps students understand big ideas in 'Deep Time.' In addition to engaging students in authentic STEM practices and scaffolding development of content knowledge, paleontology is an integrative science that connects and informs socially relevant topics, including long-term (macro-) evolution and climate change. The application of 3-D printing and scanning to develop curricula using fossils has immense potential in K-12 schools in the U.S.

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“…Physical 3D models possess several advantages over virtual and illustrated models as they allow learners to "see with their hands" [5]. This tangibility translates to a strong preference for 3D models among students and researchers alike [6]. Khot et al concluded that physical models are more effective in student learning than computer-based modalities such as Key View (photographed views of a plastic model in a PowerPoint presentation) and virtual reality (3D color image reconstruction from CT) for the study of pelvic anatomy [7].…”

mentioning

confidence: 99%

“…In anatomy, sandstone binder-jetting was used to replicate specimens like a portion of a fossilized hydrosaur femur [6] from overlapped photography and a full-size colored replica of a cadaveric upper limb [18] from CT. Cadaveric reproduction with binder jetting in full color also facilitated the creation of a human head, neck, and orbital model with data collected from a 3D scanner to provide a haptic experience for training ophthalmologists [19]. Additionally, it was used to create a color-coded model depicting the anuran outflow tract of a cane toad heart to demonstrate the use of full-color printing in reproducing complex anatomy [6].Traditionally, researchers achieve color assignment for a 3D print by separating a dataset into multiple files through segmentation of different voxel values (in units of density or intensity). This process historically restricted printing to heterogeneous tissues with significant density differences to enable separate pieces to be produced with corresponding colors.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Color Enhancement Strategies for 3D Printing of X-ray Computed Tomography Bone Data for Advanced Anatomy Teaching Models

Inoue

Freel²,

Avermaete³

et al. 2020

Applied Sciences

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Three-dimensional (3D) printed anatomical models are valuable visual aids that are widely used in clinical and academic settings to teach complex anatomy. Procedures for converting human biomedical image datasets, like X-ray computed tomography (CT), to prinTable 3D files were explored, allowing easy reproduction of highly accurate models; however, these largely remain monochrome. While multi-color 3D printing is available in two accessible modalities (binder-jetting and poly-jet/multi-jet systems), studies embracing the viability of these technologies in the production of anatomical teaching models are relatively sparse, especially for sub-structures within a segmentation of homogeneous tissue density. Here, we outline a strategy to manually highlight anatomical subregions of a given structure and multi-color 3D print the resultant models in a cost-effective manner. Readily available high-resolution 3D reconstructed models are accessible to the public in online libraries. From these databases, four representative files (of a femur, lumbar vertebra, scapula, and innominate bone) were selected and digitally color enhanced with one of two strategies (painting or splitting) guided by Feneis and Dauber’s Pocket Atlas of Human Anatomy. Resulting models were created via 3D printing with binder-jet and/or poly-jet machines with important features, such as muscle origin and insertion points, highlighted using multiple colors. The resulting multi-color, physical models are promising teaching tools that will enhance the anatomical learning experience.

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From tissue to silicon to plastic: three-dimensional printing in comparative anatomy and physiology

Cited by 23 publications

References 21 publications

Three-dimensional imaging of internal tooth structures: Applications in dental education

Three-dimensional imaging of internal tooth structures: Applications in dental education

3-D FOSSILS FOR K–12 EDUCATION: A CASE EXAMPLE USING THE GIANT EXTINCT SHARKCARCHAROCLES MEGALODON

Color Enhancement Strategies for 3D Printing of X-ray Computed Tomography Bone Data for Advanced Anatomy Teaching Models

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