Le Fort I Advancement Stability: Comparing Two Methods Of Fixation Using Lateral Cephalometric Analysis

by March 9, 2021
  • Version
  • Download 0
  • File Size 269.46 KB
  • File Count 1
  • Create Date March 9, 2021
  • Last Updated March 9, 2021

Le Fort I Advancement Stability: Comparing Two Methods Of Fixation Using Lateral Cephalometric Analysis

Syed Iqbal, Ong Siew Tin: Le Fort I Advancement Stability: Comparing TwoMethods Of Fixation Using Lateral Cephalometric Analysis.Mal. J. Oral Maxillofax. Surg. 2006: 4: 1–7.

Abstract:Amongst the many factors that could affect the stability of the osteotomyare types of fixation and the amount of movements of osteotomy sites. It wasdecided that these aspects be examined for the orthognathic cases undertaken atthe Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universityof Malaya. This study compares the stability of Le Fort I maxillary advancementbetween combined wire fixation (CWF) and rigid internal fixation (RIF). Twentytwo cases were reviewed consisting of twelve cases of combined wire fixation(CWF) and ten cases of rigid internal fixation (RIF).Surgical stability wasevaluated by comparing lateral cephalometric radiographs at three predeterminedintervals. The mean advancement measured from the anterior nasal spine (ANS)for the CWF group was 5.1mm while the RIF group was 4.3mm. A relapse of lessthan 2mm was considered as good stability and anything more as poor stability.Based on this criterion, when ANS was used as a reference point, 70% in RIFshowed good stability compared to 41.7% in CWF. The observed trend in this studysuggests that for Le Fort I maxillary advancement, RIF may have improved stabilityover CWF.