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Related Concept Videos

Virtual Work01:20

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The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
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Sampling Plans01:23

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Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
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The planning phase of the nursing process helps nurses set priorities, outline patient-centered goals and expected outcomes, and tailor nursing interventions to align with the aligned care plan. Through the planning phase, the nurse applies critical thinking skills to align and develop interventions according to the patient's needs. It provides continuity of care allowing patients to receive the maximum benefit from treatment. It serves as a pilot plan for allocating individual staff to a...
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A nursing care plan can present in two forms: informal and formal. Informal is a care plan for the individual use of the nurse and goals they wish to accomplish during their shift. Informal care plans are not included in the patient chart. A formal nursing care plan is a written or computerized guide that organizes patient care. It is further subdivided into two: standardized and individualized care plans. Standardized care plans are pre-populated care plans for specific patient populations,...
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Integration by Parts: Indefinite Integrals01:26

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Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
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Principle of Virtual Work: Problem Solving01:13

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The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
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Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy
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An integrated haptic-enabled virtual reality system for orthognathic surgery planning.

Jorge Zaragoza-Siqueiros1, Hugo I Medellin-Castillo1, Héctor de la Garza-Camargo2

  • 1a Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí , San Luis Potosí , México.

Computer Methods in Biomechanics and Biomedical Engineering
|February 5, 2019
PubMed
Summary

This study introduces a new virtual reality (VR) system for orthognathic surgery (OGS) planning. The VR system enhances accuracy and reduces planning time compared to conventional methods.

Keywords:
Orthognathic surgery (OGS)computer-aided surgeryhaptic technologiessurgery planningvirtual reality (VR)

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Medical Simulation
  • Computer-Aided Surgery

Background:

  • Conventional orthognathic surgery (OGS) planning relies on manual methods like cephalometric analysis and dental casts, which are prone to inaccuracies.
  • Existing computer-aided planning tools often address only specific stages and lack seamless integration into the operating room workflow.
  • These limitations in traditional and current digital approaches can negatively impact post-surgery outcomes.

Purpose of the Study:

  • To propose and evaluate a novel, integrated haptic-enabled virtual reality (VR) system for comprehensive orthognathic surgery planning.
  • To assess the system's capability for automatic preoperative plan generation and clinical pre-diagnosis.
  • To compare the effectiveness and efficiency of the proposed VR planning method against conventional techniques.

Main Methods:

  • Development of an integrated VR system incorporating CAD tools and haptic feedback for OGS planning.
  • Implementation of automatic preoperative plan generation and automated clinical pre-diagnosis based on patient digital data.
  • Conducting a functional evaluation using a real patient case study to compare the VR method with the traditional approach.

Main Results:

  • The proposed virtual OGS planning method demonstrated feasibility and superior effectiveness compared to the traditional approach.
  • The VR system significantly increased the intuitiveness of the planning process.
  • The system led to a notable reduction in planning errors and overall planning time.

Conclusions:

  • The integrated haptic-enabled VR system offers a practical and effective solution for orthognathic surgery planning.
  • This advanced approach improves upon conventional methods by enhancing accuracy, reducing errors, and optimizing planning efficiency.
  • The system's ability to provide automated diagnoses and generate preoperative plans marks a significant advancement in computer-assisted OGS.