Vol 21 No. 1

J Bagh College Dentistry Vol. 21(1), 2009 Mandibular antegonial …..
backward positioned the notch deepens, which
come in agreement with Singer et al (13) ,
Lambrechts et al (8) , Wu and Zhang (25) , and Zhang
et al (26) . This vertical growth pattern also
explains the increase in the AFH.
The mean value of SN-Max.P angle showed no
significant difference between the groups (table
3), which may contribute to the increase in the
lower facial height as that reported by Proffit et
al (27) , ''In long face individuals, who have
excessive lower anterior face height, the palatal
plane rotates down posteriorly''.
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