2006 Volume 44 Issue 3 Pages 355-363
The author was of the opinion that knowing the positions of the upper and first molars in children with normal occlusion in accordance with the increase in age, as well as the craniofacial and first molar patterns of development would be of considerable value to pediatric dental clinics.
The positions of the upper and lower first molars, as well as their patterns of development of Canadian Caucasian boys and girls aged 6,9,12 and 16 having normal occlusion, were measured with a longitudinal lateral cephalogram.
The position of the upper first molar with respect to the S-N distance, and the PNS-ANS distance, as well as the position of the first lower molar the respect to the G-Me distance and their growth patterns were compared on the lateral cephalogram the respect to the gender of the children. The results showed that between the males and females there were differences in the growth pattern of the first upper molar with respect to the craniofacial autro-posterior size with the increase in age but for each age group the position of the lower first molar with respect to the craniofacial antro-posterior size was in a very narrow range.
