Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking
IntroductionAccurate knowledge of masticatory motion across a variety of food materials is essential for ex-vivo testing and simulation of the food-teeth interaction. Yet, the masticatory motion has never been fully characterized in the domestic dog (Canis lupus), limiting our ability for ex-vivo mo...
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Frontiers Media S.A.
2025-07-01
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| Series: | Frontiers in Veterinary Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2025.1625335/full |
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| author | Stephanie Goldschmidt Hooi Pin Chew Hooi Pin Chew Stephen Guy Alex Fok Alex Fok |
| author_facet | Stephanie Goldschmidt Hooi Pin Chew Hooi Pin Chew Stephen Guy Alex Fok Alex Fok |
| author_sort | Stephanie Goldschmidt |
| collection | DOAJ |
| description | IntroductionAccurate knowledge of masticatory motion across a variety of food materials is essential for ex-vivo testing and simulation of the food-teeth interaction. Yet, the masticatory motion has never been fully characterized in the domestic dog (Canis lupus), limiting our ability for ex-vivo modelling.ObjectiveThe aim of this study was to characterize masticatory motion among a variety of different foods in beagle dogs using optical and electromagnetic motion tracking.ResultsWe confirmed that the masticatory pattern in the beagle is a hinge motion with no clinically meaningful horizontal motion of the mandible. The mouth opening was not significantly difference among different food and treat types regardless of food stiffness and force to fracture of the food, with a mean and standard deviation of 2.51 ± 0.33 (range 1.93–2.95) cm between the canine teeth during chewing. Conversely, frequency of chewing was influenced by food type, with kibbles having a significantly higher peak mean chewing frequency (2.93 Hz) compared to other feeds. Frequency of chewing was linearly correlated to the force to fracture of the food material (p = 0.03, R2 = 0.56), while stiffness of food did not significantly affect peak chewing frequency.ConclusionData from this study can guide ex-vivo modelling of the feed-teeth interaction for product design and testing, especially those that focus on prevention of periodontal disease and dentoalveolar trauma. |
| format | Article |
| id | doaj-art-1c2a44d4953840769dee97ef0617c912 |
| institution | Kabale University |
| issn | 2297-1769 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Veterinary Science |
| spelling | doaj-art-1c2a44d4953840769dee97ef0617c9122025-08-20T03:30:45ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692025-07-011210.3389/fvets.2025.16253351625335Characterizing masticatory motion of dogs using optical and electromagnetic motion trackingStephanie Goldschmidt0Hooi Pin Chew1Hooi Pin Chew2Stephen Guy3Alex Fok4Alex Fok5Department of Veterinary Clinical Sciences, University of Minnesota, St. Paul, MN, United StatesMinnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, MN, United StatesDivision of Operative Dentistry, Department of Restorative Sciences, University of Minnesota, Minneapolis, MN, United StatesDepartment of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, United StatesMinnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, MN, United StatesDivision of Biomaterials, Department of Restorative Sciences, University of Minnesota, Minneapolis, MN, United StatesIntroductionAccurate knowledge of masticatory motion across a variety of food materials is essential for ex-vivo testing and simulation of the food-teeth interaction. Yet, the masticatory motion has never been fully characterized in the domestic dog (Canis lupus), limiting our ability for ex-vivo modelling.ObjectiveThe aim of this study was to characterize masticatory motion among a variety of different foods in beagle dogs using optical and electromagnetic motion tracking.ResultsWe confirmed that the masticatory pattern in the beagle is a hinge motion with no clinically meaningful horizontal motion of the mandible. The mouth opening was not significantly difference among different food and treat types regardless of food stiffness and force to fracture of the food, with a mean and standard deviation of 2.51 ± 0.33 (range 1.93–2.95) cm between the canine teeth during chewing. Conversely, frequency of chewing was influenced by food type, with kibbles having a significantly higher peak mean chewing frequency (2.93 Hz) compared to other feeds. Frequency of chewing was linearly correlated to the force to fracture of the food material (p = 0.03, R2 = 0.56), while stiffness of food did not significantly affect peak chewing frequency.ConclusionData from this study can guide ex-vivo modelling of the feed-teeth interaction for product design and testing, especially those that focus on prevention of periodontal disease and dentoalveolar trauma.https://www.frontiersin.org/articles/10.3389/fvets.2025.1625335/fullchewingmasticatory motionmasticationdogsteeth |
| spellingShingle | Stephanie Goldschmidt Hooi Pin Chew Hooi Pin Chew Stephen Guy Alex Fok Alex Fok Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking Frontiers in Veterinary Science chewing masticatory motion mastication dogs teeth |
| title | Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| title_full | Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| title_fullStr | Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| title_full_unstemmed | Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| title_short | Characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| title_sort | characterizing masticatory motion of dogs using optical and electromagnetic motion tracking |
| topic | chewing masticatory motion mastication dogs teeth |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2025.1625335/full |
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