Morphological characteristics affecting extraction decision in class ii division 1 malocclusion in females.
OBJECTIVE
To determine the morphological characteristics affecting extraction decision in Class II Division 1 malocclusion in females.


METHODS
Cross-sectional study.


METHODS
Dental Section, The Aga Khan University Hospital, Karachi, from June 2002 to June 2004.


METHODS
Lateral cephalograms and study casts of 35 female patients having Class II Division 1 malocclusion were taken. Out of those, 13 were treated with 4 premolar extractions while 22 were treated on non-extraction basis. The cephalometric and cast analysis of Aga Khan University Hospital was used.


RESULTS
Patients in the extraction group had larger SN-MP, FMA, and LFH: AFH, L1-NB (mm), E plane-LS, E plane-LI, S line-LS, S line-LI, and smaller Z angle. However, the sagittal discrepancy and tooth size arch length discrepancy had no significant difference between the two groups.


CONCLUSIONS
The vertical dimensions and the upper and lower lip were the key structures to decide about extraction or non-extraction.
Bherwani
Aneel K
AK
Department of Surgery, Section of Dentistry, The Aga Khan University Hospital, Stadium Road, Karachi.
Fida
Mubassar
M