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Related Concept Videos

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...

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Updated: Jul 2, 2026

Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
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Published on: August 5, 2021

Creating three-dimensional tooth models from tomographic images.

Isaac Newton Lima da Silva1, Gustavo Frainer Barbosa, Rodrigo Borowski Grecco Soares

  • 1School of Mechanical Engineering, Pontifical Catholic University, Av. Ipiranga 6681, Faculdade de Odontologia, Porto Alegre, RS-Brazil, Zip 90619-900.

Stomatologija
|August 19, 2008
PubMed
Summary
This summary is machine-generated.

This study developed an accurate 3D molar tooth model from tomographic images. This advanced biomodel improves Finite Element Analysis (FEA) in dentistry by providing realistic anatomical data.

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Area of Science:

  • Biomaterials Science
  • Dental Anatomy
  • Computational Modeling

Background:

  • Finite Element Analysis (FEA) is increasingly used in dentistry.
  • Existing 3D tooth models often lack geometric accuracy, leading to potential errors in FEA.
  • Precise anatomical representation is crucial for reliable simulation results.

Purpose of the Study:

  • To process tomographic images for advanced 3D reconstruction of molar tooth anatomy.
  • To integrate the resulting solid model with CAD/CAE software for further analysis.

Main Methods:

  • Acquired computed tomographic images of a mandibular molar (0.5 mm slices).
  • Transferred data to commercial CAD software to generate point cloud data.
  • Utilized Pro/Engineer software to create a solid tooth model from the point cloud.

Main Results:

  • Generated a highly accurate 3D tooth model with precise shape and dimensions.
  • Achieved a high degree of accuracy, with errors ranging from 0.0 to -0.8 mm compared to real tooth data.

Conclusions:

  • The developed methodology efficiently creates realistic dental biomodels from tomographic images.
  • This approach enhances the accuracy of 3D anatomical reconstructions for dental applications.
  • The accurate biomodel is suitable for advanced simulations in dentistry.