Computer simulations of food oral processing to engineer teeth cleaning

C. G. Skamniotis (), M. Elliott and M. N. Charalambides ()
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C. G. Skamniotis: Imperial College London
M. Elliott: Mars Petcare, Oakwell Way
M. N. Charalambides: Imperial College London

Nature Communications, 2019, vol. 10, issue 1, 1-12

Abstract: Abstract Oral biofilm accumulation in pets is a growing concern. It is desirable to address this problem via non-invasive teeth cleaning techniques, such as through friction between teeth and food during chewing. Therefore, pet food design tools are needed towards optimising cleaning efficacy. Developing such tools is challenging, as several parameters affecting teeth cleaning should be considered: the food’s complex mechanical response, the contacting surfaces topology as well as the wide range of masticatory and anatomical characteristics amongst breeds. We show that Finite Element (FE) models can efficiently account for all these parameters, through the simulation of food deformation and fracture during the first bite. This reduces the need for time consuming and costly in-vivo or in-vitro trials. Our in-silico model is validated through in-vitro tests, demonstrating that the initial oral processing stage can be engineered through computers with high fidelity.

Date: 2019
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DOI: 10.1038/s41467-019-11288-5

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