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An Evaluation of Changes in the Upper Lip Following Depressor Septi Nasi Muscle Resection in Rhinoplasty
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SH Mousavi    , A Babaei Darzi , SA Seyedmajidi , R Foroughi * , M Mansouri Zeyni |
| 3.Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, I.R.Iran. , raminomfs99@yahoo.com |
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Abstract: (166 Views) |
Background and Objective: The ability to predict the effect of different rhinoplasty techniques on changes in facial features is important. The present study was conducted to predict possible changes in the upper lip following depressor septi nasi muscle resection in order to make appropriate choices in rhinoplasty.
Methods: In this cross-sectional study, 22 rhinoplasty candidates who underwent surgery in hospitals and private clinics in Babol in 2022 were examined regarding changes in the upper lip after depressor septi nasi muscle resection. The length of the upper lip (from the columella to the upper edge of the vermilion of the upper lip), the vermilion view (from the upper edge of the vermilion to the lower end of the upper lip), and the anterior teeth (the lower edge of the vermilion to the lower incisor edge of the maxillary central incisors), and the gingival view (from the lower edge of the vermilion of the upper lip to the gingival zenith of the maxillary central incisors) were examined and compared between the time intervals before surgery, 14 days, 1, and 3 months after surgery using repeated measurements.
Findings: The mean length of the upper lip was 17.82±3.05 mm before surgery, which significantly increased to 20.77±3.22 mm 3 months after surgery (p<0.001). The mean vermilion view also significantly increased from 6.50±2.12 mm before surgery to 7.44±2.30 mm 3 months after surgery (p<0.001). The mean anterior teeth projection 3 months after surgery was 2.14±1.13 mm, which was a significant decrease compared to 2.58±1.43 mm before surgery (p<0.001).
Conclusion: The results of the study showed that depressor septi nasi muscle resection increases the length of the upper lip and the view of vermilion, and reduces the view of the anterior teeth at rest and the gingiva when smiling. Therefore, a smile analysis is recommended for each individual before undergoing rhinoplasty.
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| Keywords: Rhinoplasty, Upper Lip, Depressor Septi Nasi Muscle, Muscle Resection, Anterior Teeth, Vermilion. |
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Full-Text [PDF 276 kb]
(40 Downloads)
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Type of Study: Dicscriptive |
Subject:
Oral and Maxillofacial Surgery
Received: 2023/07/31 | Accepted: 2023/12/30 | Published: 2025/10/31
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