Abstract
Objective: To determine the morphological characteristics affecting extraction decision in Class II Division 1 malocclusion in females. Design: Cross-sectional study. Place and Duration of Study: Dental Section, The Aga Khan University Hospital, Karachi, from June 2002 to June 2004. Patients and 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 cephatometric 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, 5 line-LI, and smaller Z angle. However, the sagittal discrepancy and tooth size arch length discrepancy had no significant difference between the two groups. Conclusion: The vertical dimensions and the upper and lower lip were the key structures to decide about extraction or non-extraction.
| Original language | English |
|---|---|
| Pages (from-to) | 486-489 |
| Number of pages | 4 |
| Journal | Journal of the College of Physicians and Surgeons--Pakistan : JCPSP |
| Volume | 17 |
| Issue number | 8 |
| Publication status | Published - Aug 2007 |
Keywords
- Cephalometry
- Class II division 1
- Extraction
- Malocclusion
- Morphology