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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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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...
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Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
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Virtual Dental Articulation Using Computed Tomography Data and Motion Tracking.

Ting-Han Chou1, Shu-Wei Liao2, Jun-Xuan Huang2

  • 1Department of Stomatology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi 600, Taiwan.

Bioengineering (Basel, Switzerland)
|November 25, 2023
PubMed
Summary
This summary is machine-generated.

A new virtual dental articulator uses CT scans to create personalized jaw models, improving dental restoration design. This method eliminates traditional facebow transfers for more efficient and accurate occlusal analysis.

Keywords:
TMJdigital dentistryocclusion analysisoptical trackingvirtual articulation

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Area of Science:

  • Biomedical Engineering
  • Dental Technology
  • Computational Dentistry

Background:

  • Traditional dental articulators and facebow transfers present challenges in accurately translating dental cast models.
  • Existing digital articulators can be cumbersome, hindering efficient analysis and design of dental restorations.

Purpose of the Study:

  • To develop a personalized virtual dental articulator using computed tomography (CT) data.
  • To improve the accuracy and efficiency of dental restoration design and occlusal analysis.

Main Methods:

  • Utilized CT data to establish Frankfurt's horizontal plane for mathematical modeling of virtual articulation.
  • Incorporated patient jaw-tracking data into the articulation model.
  • Validated the virtual articulator by comparing simulated and real jaw movement data.

Main Results:

  • The virtual articulator replaces traditional facebow transfers by using cranial CT data for digital model transfer.
  • Personalized virtual articulation achieved a small Fréchet distance of 1.7 mm when incorporating optical jaw tracking data.
  • The system successfully transferred digital dental models to the virtual articulator via anatomical relationships from CT data.

Conclusions:

  • The developed virtual articulator offers a more efficient and accurate method for analyzing and designing dental restorations.
  • It provides valuable diagnostic information about the temporomandibular joint (TMJ) and enables personalized occlusal analysis settings.
  • This tool enhances dental treatment planning by offering precise, patient-specific articulation simulation.