The SNA angle decreased gradually during the treatment, whereas the SNB angle stayed almost the same, reducing the
ANB angle.
Post-treatment Cephalometric analysis showed that
ANB angle changed from Class III skeletal to Class I (ANB - 1-2 degrees) and WITS appraisal also changed 2 mm (5-3 mm).
Objective: To correlate cephalometric values of
ANB angle and Wits appraisal in patients reporting to AFID.
Lateral cephalograph was taken to measure the
ANB angle.
The following parameters were analyzed as the indicators of the sagittal position and length of jaws: the angle of maxillary prognathism, the angle of mandibular prognathism,
ANB angle as an indicator of sagittal jaw relations, maxillary length (Asnp), and the length of the mandible (Gn-Go).
Moreover, individuals with Class II division 1 dental-relationships with mandibular deficiency present an open mandibular plane, decreased SNB angle, increased
ANB angle and positive AO-BO.
We evaluated the
ANB angle and condilar vertical high, we used the Habets et al.
The lateral cephalometric films of all patients were traced and the anterior-posterior skeletal relationship of the maxilla and mandible was classified as skeletal Class I (
ANB angle between 0 and 4), Class II (
ANB angle 5 or more), and Class III (
ANB angle less than 0) using the measurements of the Witz and
ANB angle.
They were divided in Class I or Class II skeletal patterns, according to the
ANB angle and WITS appraisal.
The skeletal discrepancy between maxilla and mandible improved as reflected by the improved
ANB angle (Table 1).
The existence of significant differences in the relationship between the maxilla and the mandible as determined by the
ANB angle and by the linear projection of points A and B in a true horizontal line has been observed.
Skeletal type was determined based upon the
ANB angle and Wits, which indicates the positional relationship of the maxilla and mandible.
