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Related Concept Videos

The Tongue and Taste Buds00:49

The Tongue and Taste Buds

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The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
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Gustation01:43

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Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
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Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
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Taste Buds and Receptors01:20

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Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
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Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
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Haptic Rendering for Multi-Phase Tooth Extraction Process.

Xiaohan Zhao, Mengwei Pang, Ping Ji

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    Summary
    This summary is machine-generated.

    This study introduces a haptic simulation framework for dental training, accurately replicating forceps motion and tooth extraction phases. The system enhances dental education by providing realistic force feedback, improving skills beyond traditional methods.

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    Area of Science:

    • Biomedical Engineering
    • Dental Simulation Technology
    • Haptic Feedback Systems

    Background:

    • Tooth extraction simulation requires realistic force feedback for effective dental training.
    • Current methods struggle to replicate the complex 7-Degrees of Freedom (7-DoF) forceps motion and distinct extraction phases.

    Purpose of the Study:

    • To develop a comprehensive haptic simulation framework for tooth extraction with force feedback.
    • To address challenges in simulating 7-DoF forceps motion and multi-phase extraction processes.

    Main Methods:

    • Developed a 7-DoF haptic rendering algorithm for forceps motion simulation.
    • Created a haptic handle mimicking extraction forceps with robust connectivity.
    • Implemented a multi-phase framework with physical models and entry criteria for distinct extraction stages.

    Main Results:

    • The system successfully simulated 7-DoF forceps motion and accurately replicated haptic characteristics of different extraction phases.
    • Objective and subjective experiments validated the framework's effectiveness in mimicking real-world extraction sensations.
    • The simulation demonstrated faithful replication of unique haptic features across all extraction phases.

    Conclusions:

    • The proposed haptic simulation framework offers a significant advancement for tooth extraction training.
    • It provides distinct advantages over traditional training methods, enhancing dental student proficiency.
    • The system effectively bridges the gap between theoretical knowledge and practical surgical skills in dentistry.