Cephalometric Appraisal of Antero-posterior Skeletal Discrepancy: An Overview

Daokar, Suchita; Rajput, Raksha

doi:10.3126/ojn.v8i1.21349

Cited by 1 publication

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 The hypothesis suggesting the result of premolar extraction on facial dimension vertically is highly disapproved by various data and reports. 6,7 Several authors have recommended that removing of permanent teeth from posterior buccal segment followed by mesialization to close extraction space favours closing of bite by https://doi.org/10.29309/TPMJ/2020.27.12.4688 downward and backward rotation of mandible. As first premolar extraction is indicated in cases with crowding and lip procumbency 8 , most of the space is utilized for the alleviation of crowding.…”

Section: Introductionmentioning

confidence: 99%

Pre and post orthodontic treatment changes in the sagittal and vertical skeletal dimension following all four first premolar extractions.

Pervez¹,

Ahmed²,

Behroz³

et al. 2020

TPMJ

View full text Add to dashboard Cite

Objectives: To determine mean change in sagittal and vertical skeletal dimension in patients undergoing orthodontic treatment with all four first premolar extractions. Study Design: Quasi-experimental study design. Setting: Department of Orthodontics, Dr. Ishrat-Ul-Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi. Period: Six months from 18th August 2015 to 18th February 2016. Material & Methods: 50 cases treated with all first premolar extractions were included in this study. The analysis was done on pretreatment cephalogram taken at time of enrolment and post treatment lateral cephalogram taken after 12 months of orthodontic treatment and then their measurements were compared to find out changes in the sagittal and vertical dimension. Results: Pre and post mean SNA, SNB, ANB and Pog-Nperp was not significant while mean A-Nperp was significantly changed after 12 month treatment (p=0.002). Regarding angular measurement, pre and post mean SNMP, FHMP, MMA, Go-OP, SN-OP, Y axis was not significant while mean SN-PP, UI_SN, IMPA was significantly reduced after 12 month treatment. Similarly vertical measurement, pre and post mean LAFH, PFH was not significant while mean UAFH and, TAFH was significantly reduced after 12 months of treatment. Conclusion: Sagittal and vertical skeletal dimension showed no significant change in patients undergoing orthodontic treatment with all four first premolar extractions. Some degree of extrusion was noted in all orthodontic patients who have undergone all four first premolar extractions.

show abstract

Section: Introductionmentioning

confidence: 99%