Sadia Naureen, Huma Ghazanfar Kiani, Bushra Amin.
Nasolabial Fold Dynamics in Orthodontic Treatment: Extraction versus Non Extraction Perspect.
J Islamic Int Med Coll Jan ;19(1):33-8.

Objective: This study compared the impact of extraction and non-extraction orthodontic therapy on nasolabial folds and provides valuable insights for treatment planning in borderline orthodontic cases. Study Design: A cross-sectional observational study. Place and Duration of Study: The study was conducted in the Orthodontic Department at Rawal Institute of Health Sciences Islamabad. The duration of the study was eleven months from 2 August 2022 to 3 July 2023. Materials and Methods: The research comprised of 80 patients, divided into 40 cases involving extractions and 40 cases without extraction. Photographs were taken before and after orthodontic treatment and analyzed for the change in the depth of nasolabial folds using the modified Wrinkle Severity Rating Scale. Results were compared between the extraction and non-extraction groups by using the t-test. SPSS version 23 was used to perform statistical analysis. Results: There was a statistically significant reduction in the nasolabial folds` prominence in the non-extraction group (p=.012), whereas the extraction group did not show a statistically significant difference. The pre treatment shallow nasolabial folds changed to moderately deep nasolabial folds in the extraction group in 7.5% of the cases, while 5% of shallow and 5% of deep nasolabial folds converted to absent nasolabial folds in the non-extraction group. Conclusion: Non-extraction orthodontic treatment positively impacted facial aesthetics by reducing the nasolabial folds' depth. Extraction cases did not show a significant effect on the nasolabial folds. The study emphasizes the importance of personalized treatment planning and comprehensive assessment of the patients regarding soft tissue response.

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