Table 3. Material properties of cranial and dental components.

Component	Squirrel		Guinea pig		Rat
	E	ν	E	ν	E	ν
Bone	17,850	0.30	18,800	0.30	19,920	0.30
Incisor enamel	80,430	0.33	68,600	0.33	62,370	0.33
Incisor dentine	24,460	0.31	22,620	0.31	23,600	0.31
Incisor pulp cavity*	2	0.45	2	0.45	2	0.45
Molar tooth	30,000	0.30	30,000	0.30	30,000	0.30
PDL*	50	0.40	50	0.40	50	0.40

Abbreviations: E, Young's modulus (measured in MPa); ν, Poisson's ratio; PDL, periodontal ligament.

^*, values taken from literature [29].