Table 2.

Comparison of size-adjusted measures of load-resisting and force-generating masticatory elements between rabbit dietary cohorts

VariableO-dietU-diet% Difference
Condyle
    AP length (mm)0.178±0.0160.150±0.01418.7*
    ML width (mm)0.074±0.0100.069±0.0057.3*
Corpus
    Height (mm)0.242±0.0230.237±0.0202.1
    Width (mm)0.096±0.0090.090±0.0086.7*
Symphysis
    Length (mm)0.396±0.0340.351±0.04612.8*
    Width (mm)0.148±0.0160.129±0.01414.7*
Articular breadth (mm)0.173±0.0270.140±0.03123.6*
Superior cortical depth (mm)0.176±0.0450.134±0.04231.3*
Lateral cortical depth (mm)0.089±0.0090.058±0.00853.4**
Masseter mass (wet; g)0.135±0.0160.112±0.02320.5*
  • Values are means ± s.d. for each variable, indicated by loading cohort; N=10 for each diet.

    O-diet rabbits develop relatively larger bony proportions and jaw adductor muscles as well as thicker cortical bone along the symphyseal articular and external surfaces. Asterisks indicate significant differences, *P<0.05, **P<0.01; Mann—Whitney U-test.