Changes in vertical dimension: Extraction versus non-extraction

  • Khulood Alhajeri, Dr European University, College, UAE
  • Pratik Premjani, Dr European University, College, UAE
  • Ahmed Ismail, Dr European University, College, UAE
  • Donald Ferguson, Dr European University, College, UAE
Keywords: Extraction, First premolar, Non-extraction, Second premolar, Vertical dimension

Abstract

Introduction: To evaluate and compare the vertical changes in patients treated orthodontically with or without different patterns of premolars extraction.

Materials & Method: The lateral cephalograms of 112 orthodontically treated patients were categorized into four groups of 28 each based upon extraction strategy. Cephalometric analysis comprised of 3 angular and 8 linear measurements were used to analyze vertical changes from pre- to post treatment.

Result: Active orthodontic treatment with or without various premolar extraction therapies led to a statistically significantly increase in the anterior facial height. Second premolar extraction resulted in significantly greater forward movement of the maxillary and mandibular first molars compared to non-extraction therapy.

Conclusion: Active orthodontic treatment resulted in no significant changed in maxillary to mandibular (MM) angle with or without extraction therapy.

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Author Biographies

Khulood Alhajeri, Dr, European University, College, UAE

Department of Orthodontics, Specialist Orthodontist 

 

Pratik Premjani, Dr, European University, College, UAE

Department of Orthodontics, Faculty

Ahmed Ismail, Dr, European University, College, UAE

Deparment of Orthodontics, Professor

Donald Ferguson, Dr, European University, College, UAE

Department of Orthodontics, Professor and Dean

Published
2019-09-20
How to Cite
Alhajeri, K., Premjani, P., Ismail, A., & Ferguson, D. (2019). Changes in vertical dimension: Extraction versus non-extraction. Orthodontic Journal of Nepal, 9(1), 19-27. https://doi.org/10.3126/ojn.v9i1.25685
Section
Original Articles