Gummy bear-based gnathodynamometer for masticatory diagnostics

Donghyun Lee, Beelee Chua

Research output: Contribution to journalArticle

Abstract

We have demonstrated the feasibility of a gummy bear-based gnathodynamometer for masticatory diagnostics. Using a gummy bear as a force transducer and bamboo cantilevers as mechanical springs, the masticatory force of a human mandible can be measured via electrical impedance measurement (presented as the output voltage of the gnathodynamometer). The frequency response of the gummy bear is experimentally tested from 0.1 to 100 kHz and shown to be consistent with the analytical model. For a given driving frequency, the output voltage of the gnathodynamometer is experimentally measured for a range of stimulated masticatory forces (˜3.49 to 88.50 N). The masticatory force limit is also adjustable via the driving frequency (10 to 100 kHz) and cantilever length (via sliding datum, L = 95, 75, and 50 mm). This also adjusts the masticatory force sensitivity in the range of ˜17.5 to 40.5 mV/N. The clinical feasibility is also evaluated using three human subjects. The combination of candy (gummy bear) and diagnostics heralds a new class of low-cost medical devices that generate minimum recalcitrant medical waste and that are suitable for developing countries.

Original languageEnglish
Pages (from-to)80-89
Number of pages10
JournalSensors and Actuators, A: Physical
Volume290
DOIs
Publication statusPublished - 2019 May 1

Fingerprint

bears
Acoustic impedance
Bamboo
Electric potential
Developing countries
Frequency response
Analytical models
Transducers
output
impedance measurement
Costs
electric potential
electrical impedance
frequency response
sliding
transducers

Keywords

  • Diagnostics
  • Force transducer
  • Gnathodynamometer
  • Gummy bear
  • Masticatory force

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

Cite this

Gummy bear-based gnathodynamometer for masticatory diagnostics. / Lee, Donghyun; Chua, Beelee.

In: Sensors and Actuators, A: Physical, Vol. 290, 01.05.2019, p. 80-89.

Research output: Contribution to journalArticle

Lee, Donghyun ; Chua, Beelee. / Gummy bear-based gnathodynamometer for masticatory diagnostics. In: Sensors and Actuators, A: Physical. 2019 ; Vol. 290. pp. 80-89.
@article{2b724219fa12429394102462a4557708,
title = "Gummy bear-based gnathodynamometer for masticatory diagnostics",
abstract = "We have demonstrated the feasibility of a gummy bear-based gnathodynamometer for masticatory diagnostics. Using a gummy bear as a force transducer and bamboo cantilevers as mechanical springs, the masticatory force of a human mandible can be measured via electrical impedance measurement (presented as the output voltage of the gnathodynamometer). The frequency response of the gummy bear is experimentally tested from 0.1 to 100 kHz and shown to be consistent with the analytical model. For a given driving frequency, the output voltage of the gnathodynamometer is experimentally measured for a range of stimulated masticatory forces (˜3.49 to 88.50 N). The masticatory force limit is also adjustable via the driving frequency (10 to 100 kHz) and cantilever length (via sliding datum, L = 95, 75, and 50 mm). This also adjusts the masticatory force sensitivity in the range of ˜17.5 to 40.5 mV/N. The clinical feasibility is also evaluated using three human subjects. The combination of candy (gummy bear) and diagnostics heralds a new class of low-cost medical devices that generate minimum recalcitrant medical waste and that are suitable for developing countries.",
keywords = "Diagnostics, Force transducer, Gnathodynamometer, Gummy bear, Masticatory force",
author = "Donghyun Lee and Beelee Chua",
year = "2019",
month = "5",
day = "1",
doi = "10.1016/j.sna.2019.03.013",
language = "English",
volume = "290",
pages = "80--89",
journal = "Sensors and Actuators, A: Physical",
issn = "0924-4247",
publisher = "Elsevier",

}

TY - JOUR

T1 - Gummy bear-based gnathodynamometer for masticatory diagnostics

AU - Lee, Donghyun

AU - Chua, Beelee

PY - 2019/5/1

Y1 - 2019/5/1

N2 - We have demonstrated the feasibility of a gummy bear-based gnathodynamometer for masticatory diagnostics. Using a gummy bear as a force transducer and bamboo cantilevers as mechanical springs, the masticatory force of a human mandible can be measured via electrical impedance measurement (presented as the output voltage of the gnathodynamometer). The frequency response of the gummy bear is experimentally tested from 0.1 to 100 kHz and shown to be consistent with the analytical model. For a given driving frequency, the output voltage of the gnathodynamometer is experimentally measured for a range of stimulated masticatory forces (˜3.49 to 88.50 N). The masticatory force limit is also adjustable via the driving frequency (10 to 100 kHz) and cantilever length (via sliding datum, L = 95, 75, and 50 mm). This also adjusts the masticatory force sensitivity in the range of ˜17.5 to 40.5 mV/N. The clinical feasibility is also evaluated using three human subjects. The combination of candy (gummy bear) and diagnostics heralds a new class of low-cost medical devices that generate minimum recalcitrant medical waste and that are suitable for developing countries.

AB - We have demonstrated the feasibility of a gummy bear-based gnathodynamometer for masticatory diagnostics. Using a gummy bear as a force transducer and bamboo cantilevers as mechanical springs, the masticatory force of a human mandible can be measured via electrical impedance measurement (presented as the output voltage of the gnathodynamometer). The frequency response of the gummy bear is experimentally tested from 0.1 to 100 kHz and shown to be consistent with the analytical model. For a given driving frequency, the output voltage of the gnathodynamometer is experimentally measured for a range of stimulated masticatory forces (˜3.49 to 88.50 N). The masticatory force limit is also adjustable via the driving frequency (10 to 100 kHz) and cantilever length (via sliding datum, L = 95, 75, and 50 mm). This also adjusts the masticatory force sensitivity in the range of ˜17.5 to 40.5 mV/N. The clinical feasibility is also evaluated using three human subjects. The combination of candy (gummy bear) and diagnostics heralds a new class of low-cost medical devices that generate minimum recalcitrant medical waste and that are suitable for developing countries.

KW - Diagnostics

KW - Force transducer

KW - Gnathodynamometer

KW - Gummy bear

KW - Masticatory force

UR - http://www.scopus.com/inward/record.url?scp=85062958356&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062958356&partnerID=8YFLogxK

U2 - 10.1016/j.sna.2019.03.013

DO - 10.1016/j.sna.2019.03.013

M3 - Article

AN - SCOPUS:85062958356

VL - 290

SP - 80

EP - 89

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

SN - 0924-4247

ER -