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Validation of a purpose-built chewing gum and smartphone application to evaluate chewing efficiency.

Validation of a purpose-built chewing gum and smartphone application to evaluate chewing efficiency.

J Oral Rehabil. 2018 Jul 19;:

Authors: Buser R, Ziltener V, Samietz S, Fontolliet M, Nef T, Schimmel M

Abstract
OBJECTIVES: To validate a purpose-built two-colored chewing gum (Hue-Check Gum® ), and to test the accuracy of a custom-built smartphone application for a color-mixing ability test to assess chewing function.
METHODS: Fully dentate participants (28D-group) and edentulous participants with implant overdentures (IOD-group) were recruited. They chewed a Hue-Check Gum® for 5, 10, 20, 30, and 50 chewing cycles, respectively. Maximum voluntary bite force (MBF) was assessed with a digital gauge. The specimens were analyzed according to their color mixture (variance of hue, VOH) with a validated software (VOH_scan) and a newly developed smartphone application (VOH_app).
RESULTS: Participants segregated by dental state were significantly different regarding the number of occluding pairs of teeth, age, and MBF. VOH_scan showed a negative logarithmic association with the number of chewing cycles, and VOH could be predicted from chewing cycles, MBF, and gender. The clearest discrimination between the IOD and the 28D groups was observed for n=20 chewing cycles; at this point, VOH was distinguishably different with a p-value < 0.0001. The VOH_app was a very good predictor for VOH_scan with 0.80 < pseudo-R2 < 0.83, depending on light exposure and measuring distance. There was, however, a systematic error in the accuracy of the app for inadequately chewed specimens.
CONCLUSIONS: The use of the two-colored chewing gum would provide a fast, simple, and inexpensive method for the assessment of masticatory performance, which could be used in geriatric wards or in private practices without the requirement of specialized equipment or trained staff. This article is protected by copyright. All rights reserved.

PMID: 30024031 [PubMed – as supplied by publisher]

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