[Chewing: a matter of selection and breakage].
The masticatory performance of subjects can objectively be determined by describing the particle size distribution of a comminuted test food (cubes Optosil). After a fixed number of chewing strokes the particles are collected and sorted with a stack of sieves. The size distribution can be characterized with two parameters; the median particle size and the broadness of the distribution. The rate of reduction of the median size is used to characterize the chewing performance. The chewing process can be described as the result of two processes: selection and breakage. The parameters of these two processes can be derived from the chewing result using a mathematical model. The differences in chewing performance between subjects with a natural dentition and subjects with a complete denture occurs already in the first 20 chewing strokes. Experimental results indicate that especially the selection chance is smaller in denture wearers.
Bosman
F
F
Uit de vakgroep Mondziekten/Kaakchirurgie en Bizondere Tandheelkunde, faculteit der Geneeskunde van de rijksuniversiteit te Utrecht.
van der Bilt
A
A
van der Glas
H W
HW
Olthoff
L W
LW
Slagter
A P
AP
D003778:Dentures / Q000009:adverse effects; D006801:Humans; D008409:Mastication / Q000502:physiology*; D010316:Particle Size