A SURVEY ON THE AMOUNT OF COORDINATION BETWEEN PANORAMIC AND LATERAL CEPHALOMETRIC RADIOGRAPHS IN DIAGNOSIS OF FACIAL VERTICAL GROWTH PATTERN

One of the most important issues in training, diagnosis, and treatment in
orthodontics is a thorough understanding of patient’s growth pattern. Imbalances in this pattern can
cause malocclusion which is one of the most important causes of referring patients for treatment. At the
first step, dentist’s responsibility is the diagnosis and monitoring of the growth pattern in aberrant cases.
The aim of this study was to find panoramic indices in the diagnosis of facial vertical growth pattern
and comparing them with standard lateral cephalometric radiographs.
Materials & Methods: Current research is a descriptive, cross-sectional study that was carried out on 30
patient’s pretreatment lateral cephalometric and panoramic radiographs. Gonial, FMA, Basal, Schudy
and Or Go Me angles were used to measure both radiographs. Pearson’s correlation coefficient and
independent t-test were used for data analysis.
Results: Results showed that the value of all variables on panoramic radiographs was smaller than their
counterparts on lateral cephalograms. Gonial angles had the highest correlation coefficient (r=0.89,
p<0.001) when comparing the two methods. And Or Go Me angle had the lowest (r=0.41, p<0.05).
Conclusion: Gonial angles can be detected on panoramic views along with lateral cephalograms with
high accuracy that can show facial vertical growth pattern to some extent; however, for accurate
diagnosis cephalometric analysis is also needed.