A 23 year old male patient complains that his face appears too long. Extra-oral examination reveals a retrognathic mandible, steep mandibular plane angle and a prominent antegonial notch. Which of the following statements regarding this patient's condition is false?
By convention, the rotation of either jaw is considered "forward" and given a negative sign if there is more growth posteriorly than anteriorly. The rotation is "backward" and given a positive direction if it lengthens, anterior dimensions more than posterior ones, bringing the chin downward and backward.
Contemporary orthodontics, William Proffit, 4th edition page 116
Growth of mandible is more posteriorly
Growth of mandible is more anteriorly
Rotation is backward
Rotation can be given a positive sign