Figure 3

Tree split with Pearson x ² Example 1: if the depth of impaction is A or B and the view of the x-ray: more than 1 mm, touching, interrupting, dark root, deflected or narrow root and the type fully erupted or partially impacted and the width of the root incomplete, thin or thick then there will be no predicted numbness. Example 2: if the depth of the impaction is level C and the type fully impacted and the view more than 1 mm, or touching or interrupting or narrow root or bifid apex and the width of the root incomplete, bulbous or thick and the view touching, or interrupting or narrow root, or bifid foot and the number of roots multiple or incomplete and the condition of the gum widening and the view touching, narrow root or bifid foot, predicted numbness will be between 6 months and less than two years. Example 3: if the depth of the impaction was level A or B and the view diversion, there will be numbness for more than two years.