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Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it instrumental in...
Tooth Anatomy01:21

Tooth Anatomy

The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.

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相关实验视频

Updated: May 11, 2026

Dynamic Navigation for Dental Implant Placement
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用开源工具追踪下巴运动:一种牙科技术

Gennaro Ruggiero1, Roberto Sorrentino2, Francesco Grande3

  • 1Resident, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Prosthodontics, Scientific Unit of Digital Dentistry, University "Federico II" of Naples, Naples, Italy.

The Journal of prosthetic dentistry
|April 15, 2025
PubMed
概括

这项研究提出了一种具有成本效益的方法,用于使用开源的Blender软件,视频和口腔内扫描来跟踪下部运动. 半球标记器同步虚拟牙造型以集成CAD和3D成像.

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科学领域:

  • 生物医学工程 生物医学工程
  • 牙科技术 牙科技术
  • 计算机辅助设计 (CAD)

背景情况:

  • 精确跟踪下部运动对于诊断和治疗各种牙和面疾病至关重要.
  • 目前用于下部运动跟踪的方法可能是昂贵和复杂的,限制了可访问性.

研究的目的:

  • 开发和介绍一种具有成本效益的方法来跟踪下部运动.
  • 整合开源软件解决方案与已建立的牙科成像技术,以增强数据采集.

主要方法:

  • 使用开源的Blender软件 (4.3版本) 与视频录制和口腔内扫描一起使用.
  • 采用半球树脂标记器作为参考点,以同步从口腔内扫描获得的虚拟造运动.
  • 集成采集的数据与CAD软件,面部扫描和形束计算断层扫描 (CBCT).

主要成果:

  • 成功演示了一种可行且具有成本效益的方法来捕捉动态下部运动.
  • 建立了一个工作流程,以同步3D口腔内扫描数据与实时下部运动.
  • 能够将动态数据与全面的3D患者模型集成在一起.

结论:

  • 描述的方法为准确的下部运动分析提供了一个可访问和负担得起的替代方案.
  • 这种方法有助于将动态数据纳入数字牙科工作流程,从而有可能改善治疗规划和结果.
  • 开源软件的使用大大降低了对先进的牙科运动跟踪的财务障碍.