shows the mean maxillary and mandibular base
lengths found in Skeletal Class I, II and III with respect to gender and it shows the number of males and females included in each skeletal class.
We verified that the mechanical response occurred initially in areas with major bone strength, thickness, and density mainly in the oblique line and mandibular base
, in agreement with the data shown by Schwartz-Dabney and Dechow .
For the quantitative variables; age, mandibular base
length and maxillary base length, mean and standard deviation were calculated.
The gonial angle is formed by the line tangent to the lower border of the mandible and the line tangent to the distal border of the ascending ramus and condyle.11,20 The shape of the mandibular base
, especially the gonial angle, correlates with the function and shape of the muscles of mastication.21 With age, the masticatory muscles change in function and structure, seen in decreased contractile activity and lower muscle density.22 Some studies have shown a gender difference.11,23