Effects of modified step Le Fort I advancement surgery on nostril area and inferior nasal structures volume in class III patients: a retrospective clinical study

Akbulut N., Akbulut S., BAYRAK S., Sen E., Altan A., Kaymaz G., ...More

CLINICAL ORAL INVESTIGATIONS, vol.27, no.2, pp.807-815, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 2
  • Publication Date: 2023
  • Doi Number: 10.1007/s00784-023-04860-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, EMBASE, MEDLINE
  • Page Numbers: pp.807-815
  • Keywords: Nasal cavity, Nasal concha, Nasal airway obstruction, LeFort osteotomy, Orthognathic surgical procedures, SOFT-TISSUE CHANGES, MAXILLARY ADVANCEMENT, ORTHOGNATHIC SURGERY, BIMAXILLARY SURGERY, OSTEOTOMY, IMPACTION, INDEX, SHAPE, CBCT
  • Ondokuz Mayıs University Affiliated: Yes


ObjectiveThe effect of the modified step Le Fort I osteotomy on the inferior nasal structures and the nostril area was evaluated.Materials and methodsThis study included 24 patients who had modified step Le Fort I osteotomy. Inferior nasal concha volume (INCV), meatus nasi inferior volume (MNIV), the sum of both structures volume (TV), and nostril area (NA) were evaluated in pre- (T0) and postoperative (T1) periods.ResultsFor all patients, NA increased both on the right side (p = 0.011) and left side (p = 0.050) after surgery. The INCV and TV values were lower in T1 than those in T0; however, a statistically significant decrease of INCV and TV was found only in the right side of males (p = 0.039 and p = 0.050, respectively). No significant difference was found in MNIV between T0 and T1 measurements (p > 0.05).ConclusionMaxillary advancement with the modified step Le Fort I osteotomy technique increased the NA, which may have a positive effect on breathing function. On the other hand, although TV tended to decrease, MNIV did not change after surgery as the same decreasing tendency also existed in INCV.