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Does Maxillary Advancement Influence the Nasolabial Angle?

Tom Shmuly1,2, Gabreial Chaushu2,3, Dror Michael Allon2

  • 1Oral and Maxillofacial Surgery Unit, Kaplan Medical Center, Rehovot.

The Journal of Craniofacial Surgery
|July 14, 2019
PubMed
Summary
This summary is machine-generated.

Maxillary advancement may affect the nasolabial angle, but predicting this change preoperatively is difficult. This study found no direct correlation, suggesting further research is needed.

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Area of Science:

  • Orthodontics
  • Craniofacial Surgery
  • Cephalometric Analysis

Background:

  • Maxillary advancement is a surgical procedure to correct midface discrepancies.
  • The nasolabial angle is a key aesthetic facial measurement.
  • Predicting the impact of surgery on facial aesthetics is crucial for patient outcomes.

Purpose of the Study:

  • To investigate the correlation between the extent of maxillary advancement and changes in the nasolabial angle.
  • To determine if maxillary advancement can be used to preoperatively predict nasolabial angle alterations.

Main Methods:

  • Retrospective analysis of 32 patients undergoing maxillary advancement.
  • Collection and tracing of preoperative and postoperative lateral cephalometric radiographs.
  • Statistical evaluation using paired sample t-test and Pearson's correlation test.

Main Results:

  • A statistically significant decrease in the nasolabial angle was observed post-surgery (P=0.03).
  • However, Pearson's correlation test revealed no direct correlation between the amount of maxillary advancement and nasolabial angle change.
  • Literature review indicated inconsistent findings, with most studies showing no correlation.

Conclusions:

  • While maxillary advancement can influence the nasolabial angle, precise preoperative prediction remains challenging.
  • The lack of a direct correlation highlights the complexity of predicting aesthetic outcomes.
  • Further research is recommended to better understand and predict these surgical effects.