DETERMINATION OF LOWER FACIAL HEIGHT THROUGH MANDIBULAR MORPHOLOGY USING LATERAL CEPHALOMETERY
2013
The objective of the present study was to correlate the mandible morphology and lower facial
height in occlusion through lateral cephalographs. Moreover the cephalometric measurements can be
used as records for future complete dentures fabrication. It is a descriptive study and was carried out
at the Prosthodontic Department of Lahore Medical and Dental College, Lahore from July 2011 to
January 2012.
A total of 120 completely edentulous patients of both genders were selected and the age ranged
35 years and above. Demographic data and informed consent of all the patients were taken. The
patients with the facial asymmetry, acquired and congenital orofacial deformity were excluded from
the study. All those patients not willing to undergo radiography were also not included. The
cephalographs of each patient was carried out after the insertion of the complete dentures. The Rickets
cephalometric analysis was used to analyze the mandibular shape by (gonial angle) and the
mandibular arch. The lower facial height in occlusion was measured by three angles (superior,
median, inferior).
The results of the present study showed that there is a positive and a strong correlation between
mandibular gonial angle with all the three angles determining the lower facial height. Furthermore
the median and inferior angles were found to be having significant correlation with the mandibular
arch angle. The regressions for gonial angle (Gonial=103.527+0.466(inferior) and for mandibular
arch angle (arch =30.519-0.271(superior) +0.227(inferior) were statistically significant.
It was concluded that the mandibular morphology can be used to evaluate the lower facial height
in occlusion in the Pakistani population and is complementary to the routinely used methods for the
complete denture fabrication.
Key Words: Lower facial height, Cephalometery, Edentulisim, Facial proportions.
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