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Ergonomic assessment of dentistry wo...

Alhaider, Abdulrahman Abdulqader.

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Ergonomic assessment of dentistry workplace and posture parameters using digital human modeling.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Ergonomic assessment of dentistry workplace and posture parameters using digital human modeling./
Author:	Alhaider, Abdulrahman Abdulqader.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	127 p.
Notes:	Source: Masters Abstracts International, Volume: 78-07.
Contained By:	Masters Abstracts International78-07.
Subject:	Engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10249307
ISBN:	9781369461114

Ergonomic assessment of dentistry workplace and posture parameters using digital human modeling.
Alhaider, Abdulrahman Abdulqader.

Ergonomic assessment of dentistry workplace and posture parameters using digital human modeling. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 127 p.

Source: Masters Abstracts International, Volume: 78-07.

Thesis (M.S.)--State University of New York at Binghamton, 2016.

This item must not be sold to any third party vendors.

Work-related musculoskeletal disorders (WMSDs) have been a critical issue for dentists due to the nature of performing various postures in their profession. During recent years, it has become a priority for many specialists to limit these disorders and prevent WMSDs due to their consequences, financially and personally. A variety of ergonomic interventions, which are simple and effective, have been applied to limit WMSDs among dentists. However, in the dentists' environment, it tends to be quite costly and time consuming to replicate different postures using traditional ergonomic assessment in a laboratory setting. Therefore, the use of digital human modeling (DHM) has increasingly been used in disparate professions. Not only is DHM considered to be time and cost efficient but it also provides accurate results using sophisticated ergonomic assessment tools that are part of it. Therefore, the primary goal in this research was to simulate and evaluate the O'clock positions of dentists in two postures using DHM. In this study particularly, Jack™ was used to simulate dentists' positions. Further, one task was simulated for the whole positions where the experimental design included gender, percentile, position, and two postures: sitting and standing. Dependent variables analyzed were Comfort Assessment, Low Back Analysis, and Rapid Upper Limb Assessment. For Comfort Assessment, 8 o'clock seems to have the least effect on the neck, upper arms, and lower arm compared to other positions. Moreover, for all body parts analyzed, the sitting position has same effect as the standing position except on the upper and lower right arm for 8 and 9 o'clock positions where less effect was noticed. Overall, all positions, except 8 o'clock, fall under caution areas. For Low Back Analysis, the force on the low back during sitting posture is less than standing for the 10, 11 and 12 o'clock positions. Males have more force on the low back than females in both postures. Lastly, the Rapid Upper Limb Assessment scores from Jack™ indicate that all positions at both postures fall under caution areas 4 and 5. First, regarding sitting, overall, the 8 and 9 o'clock positions, with a score of 4, scored less than the rest. Positions 10, 11, and 12 o'clock had a score of 5. However, at 9 o'clock for both genders, the larger the percentile is, the greater the force is on the lower arm, which made the 95th percentile among the medium risk range.

ISBN: 9781369461114Subjects--Topical Terms:

586835
Engineering.
Subjects--Index Terms:

Analysis of variance

Ergonomic assessment of dentistry workplace and posture parameters using digital human modeling.
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300 $a 127 p.
500 $a Source: Masters Abstracts International, Volume: 78-07.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Khasawneh, Mohammad T.
502 $a Thesis (M.S.)--State University of New York at Binghamton, 2016.
506 $a This item must not be sold to any third party vendors.
520 $a Work-related musculoskeletal disorders (WMSDs) have been a critical issue for dentists due to the nature of performing various postures in their profession. During recent years, it has become a priority for many specialists to limit these disorders and prevent WMSDs due to their consequences, financially and personally. A variety of ergonomic interventions, which are simple and effective, have been applied to limit WMSDs among dentists. However, in the dentists' environment, it tends to be quite costly and time consuming to replicate different postures using traditional ergonomic assessment in a laboratory setting. Therefore, the use of digital human modeling (DHM) has increasingly been used in disparate professions. Not only is DHM considered to be time and cost efficient but it also provides accurate results using sophisticated ergonomic assessment tools that are part of it. Therefore, the primary goal in this research was to simulate and evaluate the O'clock positions of dentists in two postures using DHM. In this study particularly, Jack™ was used to simulate dentists' positions. Further, one task was simulated for the whole positions where the experimental design included gender, percentile, position, and two postures: sitting and standing. Dependent variables analyzed were Comfort Assessment, Low Back Analysis, and Rapid Upper Limb Assessment. For Comfort Assessment, 8 o'clock seems to have the least effect on the neck, upper arms, and lower arm compared to other positions. Moreover, for all body parts analyzed, the sitting position has same effect as the standing position except on the upper and lower right arm for 8 and 9 o'clock positions where less effect was noticed. Overall, all positions, except 8 o'clock, fall under caution areas. For Low Back Analysis, the force on the low back during sitting posture is less than standing for the 10, 11 and 12 o'clock positions. Males have more force on the low back than females in both postures. Lastly, the Rapid Upper Limb Assessment scores from Jack™ indicate that all positions at both postures fall under caution areas 4 and 5. First, regarding sitting, overall, the 8 and 9 o'clock positions, with a score of 4, scored less than the rest. Positions 10, 11, and 12 o'clock had a score of 5. However, at 9 o'clock for both genders, the larger the percentile is, the greater the force is on the lower arm, which made the 95th percentile among the medium risk range.
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650 4 $a Engineering. $3 586835
650 4 $a Dentistry. $3 828971
653 $a Analysis of variance
653 $a Dentistry ergonomics
653 $a Digital human modeling
653 $a O'clock positions
653 $a Work-related musculoskeletal disorders
690 $a 0537
690 $a 0567
710 2 $a State University of New York at Binghamton. $b Systems Science Industrial Engineering. $3 2104041
773 0 $t Masters Abstracts International $g 78-07.
790 $a 0792
791 $a M.S.
792 $a 2016
793 $a English
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