Study of mouthguard design for endurance and air-flow enhancement

Recently, mouthguard is one of the important device to the athletes during sports and exercise. Wearing a mouthguard is a must to prevent them from any orofacial injuries occurs during their sport activities. Therefore, to make sure it is safe and comfort, a study on the mouthguard design is carried...

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Main Author:	Ilmin, Siti Syazwani
Format:	Thesis
Language:	English English
Published:	2015
Subjects:	TA174 Engineering design
Online Access:	http://eprints.uthm.edu.my/1489/1/24p%20SITI%20SYAZWANI%20ILMIN.pdf http://eprints.uthm.edu.my/1489/2/SITI%20SYAZWANI%20ILMIN%20WATERMARK.pdf
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id	my-uthm-ep.1489
record_format	uketd_dc
spelling	my-uthm-ep.14892021-10-03T07:44:01Z Study of mouthguard design for endurance and air-flow enhancement 2015 Ilmin, Siti Syazwani TA174 Engineering design Recently, mouthguard is one of the important device to the athletes during sports and exercise. Wearing a mouthguard is a must to prevent them from any orofacial injuries occurs during their sport activities. Therefore, to make sure it is safe and comfort, a study on the mouthguard design is carried out to investigate the performance of the mouthguards, in term of stress distribution and air flow path by improving the pressure difference between the ambient (outside) and the oral cavity pressure (inside). A preliminary design has been study to simulate its total deformation and stress, in terms of Von Mises Stress by using ANSYS 15.0 Workbench. From the results, the critical parts are identified on the preliminary design and later being used to improve the design to the new one. By increasing the thickness of the preliminary design, the total deformation has been decreased for about 0.2 mm to 0.16 mm for the exerted forces of 50 N to 500 N for external forces comes from outside, whereas, for internal forces from 100 N to 600 N has decreased about 0.24 mm to 1.44 mm. The simulation process is then followed by the air flow study in the oral cavity with the open mouth about 0.5 mm when the athlete is doing the exercise with 4.43 m/s speed of flowing air entering the mouth. The finding indicates that the modified mouthguard has large value of velocity streamline compared with the preliminary design because it is thicker than the first design. The difference pressure between both of the designs are, 140.09 Pa for the preliminary design and 401.86 Pa for the modified design. Velocity stream line also showed that higher speeds occur in the near mouth guards, that is, between the bottom surfaces of the mouthguard and the lower teeth. The results show that, the thicker the mouthguard design, the better it is for prevention but less in air flow distribution into the oral cavity. 2015 Thesis http://eprints.uthm.edu.my/1489/ http://eprints.uthm.edu.my/1489/1/24p%20SITI%20SYAZWANI%20ILMIN.pdf text en public http://eprints.uthm.edu.my/1489/2/SITI%20SYAZWANI%20ILMIN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English
topic	TA174 Engineering design
spellingShingle	TA174 Engineering design Ilmin, Siti Syazwani Study of mouthguard design for endurance and air-flow enhancement
description	Recently, mouthguard is one of the important device to the athletes during sports and exercise. Wearing a mouthguard is a must to prevent them from any orofacial injuries occurs during their sport activities. Therefore, to make sure it is safe and comfort, a study on the mouthguard design is carried out to investigate the performance of the mouthguards, in term of stress distribution and air flow path by improving the pressure difference between the ambient (outside) and the oral cavity pressure (inside). A preliminary design has been study to simulate its total deformation and stress, in terms of Von Mises Stress by using ANSYS 15.0 Workbench. From the results, the critical parts are identified on the preliminary design and later being used to improve the design to the new one. By increasing the thickness of the preliminary design, the total deformation has been decreased for about 0.2 mm to 0.16 mm for the exerted forces of 50 N to 500 N for external forces comes from outside, whereas, for internal forces from 100 N to 600 N has decreased about 0.24 mm to 1.44 mm. The simulation process is then followed by the air flow study in the oral cavity with the open mouth about 0.5 mm when the athlete is doing the exercise with 4.43 m/s speed of flowing air entering the mouth. The finding indicates that the modified mouthguard has large value of velocity streamline compared with the preliminary design because it is thicker than the first design. The difference pressure between both of the designs are, 140.09 Pa for the preliminary design and 401.86 Pa for the modified design. Velocity stream line also showed that higher speeds occur in the near mouth guards, that is, between the bottom surfaces of the mouthguard and the lower teeth. The results show that, the thicker the mouthguard design, the better it is for prevention but less in air flow distribution into the oral cavity.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ilmin, Siti Syazwani
author_facet	Ilmin, Siti Syazwani
author_sort	Ilmin, Siti Syazwani
title	Study of mouthguard design for endurance and air-flow enhancement
title_short	Study of mouthguard design for endurance and air-flow enhancement
title_full	Study of mouthguard design for endurance and air-flow enhancement
title_fullStr	Study of mouthguard design for endurance and air-flow enhancement
title_full_unstemmed	Study of mouthguard design for endurance and air-flow enhancement
title_sort	study of mouthguard design for endurance and air-flow enhancement
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2015
url	http://eprints.uthm.edu.my/1489/1/24p%20SITI%20SYAZWANI%20ILMIN.pdf http://eprints.uthm.edu.my/1489/2/SITI%20SYAZWANI%20ILMIN%20WATERMARK.pdf
_version_	1747830801294163968

Study of mouthguard design for endurance and air-flow enhancement

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