The mandible from the structural mechanics point of view at the macroscopic level is a highly complex composite material which exhibits viscoelastic, a time-dependent behaviour. The lack of specific experimental data of the human jaw bone tissue prevents the implementation of these properties into finite element simulation which results in poor quality modelling. The objective of this investigation was to study the short-term creep behaviour of human jaw compact bone material specimens subjected to compression tests. This paper deals with both experimental determination of active creep and approximation of the obtained results using exponential function. Samples for experiments were prepared from five 49 – 56 years old male lower jaws obtained in autopsy. The creep strains were determined for 15 specimens in a specially designed equipment. The experimental creep strains of the human mandible compact bone material were approximated for each sample separately and for group of samples. Average data of the creep properties for compact bone tissue were achieved with two and three exponents. The results of this work can be used for development of mathematical model of the human mandible.