Document Type

Honors Capstone Project

Date of Submission

Spring 5-1-2006

Capstone Advisor

Dr. Karen Hiiemae

Honors Reader

Dr. Gustav Engbretson

Capstone Major

Biomedical and Chemical Engineering

Capstone College

Engineering and Computer Science

Audio/Visual Component

no

Capstone Prize Winner

no

Won Capstone Funding

no

Honors Categories

Sciences and Engineering

Subject Categories

Biomedical Devices and Instrumentation | Biomedical Engineering and Bioengineering

Abstract

Understanding the process of mastication, or chewing, is very important in humans. Understanding the way people chew can help craniofacial repair to victims of accidents or other conditions. Stages of chewing and swallowing have been categorized; however, it is currently unknown when exactly the teeth meet during mastication. Vertical motion data were obtained from seven subjects while chewing food of different consistencies. A videofluorograph collected the data and they were manipulated in Excel to be plotted as time vs. vertical displacement for the upper incisor tooth. The first and second derivatives of these motion-time charts were taken in order to determine velocity and acceleration with respect to time. These data were analyzed to determine specific times of heightened acceleration and velocity. Due to the limited sampling rate acceleration data were too noisy to be used. Velocity was found to be greatest at both maximum and mid-gape. No trends were evident to show a predictive time of when teeth meet during the jaw-closing process.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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