Evaluation of Nasolabial Angle Changes after Dermal Fillers Injection of Skeletal Class III Orthodontically Treated Females

Document Type : Original articles

Authors

1 Department of Orthodontics, Faulty of Dentistry, British University in Egypt, Cairo, Egypt

2 Professor of orthodontics, faculty of dentistry ,ain shams university

3 Head of orthodontic department .faculty of dentistry , Ain shams university

4 Professor of Orthodontics, Faculty of Dentistry, Ain Shams University

5 Lecturer of Orthodontics, Faculty of Dentistry, Cairo University Cairo University. Cairo, Egypt

Abstract

Abstract:
Objectives: The objective of this study is to assess the changes in the nasolabial angle following upper lip augmentation after orthodontic treatment completion in females with skeletal class III.
Methods and Materials: This prospective study was performed on 15 patients all had non-surgical upper lip augmentation using Hyaluronic Acid dermal filler injections (Restylane® Defyne) following camouflage orthodontic treatment. Nasolabial angle changes were assessed using lateral cephalometric x-ray analysis for all patients before and after upper lip augmentation.
Results: Following upper lip augmentation nasolabial angle showed a decrease in measurement at T1 by 4.88 ± 1.74 with overall mean value of 96.38±12.63 degrees. There was a statistically significant change following lip augmentation (P-value <0.001, Effect size = 0.764) directly affecting the nasolabial angle.
Conclusion: The hyaluronic filler used in this study is well tolerated, efficient and safe. The nasolabial angle is directly affected by the soft tissue thickness of the maxillary lip as the lip augmentation put the nasolabial angle in the ideal zone.

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