Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner
A facial scanner and three-dimensional computed tomography (CT) were used to evaluate the three-dimensional change in lip asymmetry before and after two-jaw surgery for 22 patients with facial asymmetry (menton deviation > 3 mm). We used the labrale superius (Ls), deviated/non-deviated-side cheil...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/2076-3417/12/18/9385 |
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| author | Young-Jae Kim Sung-Hwan Choi Yoon Jeong Choi Kee-Joon Lee Sang-Hwy Lee Hyung-Seog Yu |
| author_facet | Young-Jae Kim Sung-Hwan Choi Yoon Jeong Choi Kee-Joon Lee Sang-Hwy Lee Hyung-Seog Yu |
| author_sort | Young-Jae Kim |
| collection | DOAJ |
| description | A facial scanner and three-dimensional computed tomography (CT) were used to evaluate the three-dimensional change in lip asymmetry before and after two-jaw surgery for 22 patients with facial asymmetry (menton deviation > 3 mm). We used the labrale superius (Ls), deviated/non-deviated-side cheilions (Ch-D/Ch-ND), and labrale inferius (Li) to construct the upper and lower lip planes to evaluate the lip asymmetry. A correlation analysis was performed to determine the factors related to the vertical change in the cheilions (ΔChZ-D/ND). In the transverse axis, Ch-D and Li moved to improve the asymmetry after surgery. All landmarks, except the Ls, moved backward in the anteroposterior axis. In the vertical axis, significant upward movement was observed in all hard tissue landmarks; however, there were no significant changes in the soft tissue. In the lip plane, the difference in the height of Ch-D and Ch-ND was significantly reduced (1.38 mm vs. 0.72 mm). In the anteroposterior axis, the ΔChZ-D/ND showed significant correlations with the mandibular setback. In the vertical axis, the ΔCh-ND showed significant correlations with the maxillary impaction of the non-deviated side. The improvement in lip asymmetry post-surgery was mainly achieved by the movement of the lower lip and Ch-D rather than the upper lip and Ch-ND. |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:46:46Z |
| publishDate | 2022-09-01 |
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| series | Applied Sciences |
| spelling | doaj.art-2154f763c53246ccbc2e94f7f1d2ddfc2023-11-23T14:57:44ZengMDPI AGApplied Sciences2076-34172022-09-011218938510.3390/app12189385Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial ScannerYoung-Jae Kim0Sung-Hwan Choi1Yoon Jeong Choi2Kee-Joon Lee3Sang-Hwy Lee4Hyung-Seog Yu5Department of Orthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Orthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Orthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Orthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Oral & Maxillofacial Surgery, Oral Science Research Center, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaDepartment of Orthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaA facial scanner and three-dimensional computed tomography (CT) were used to evaluate the three-dimensional change in lip asymmetry before and after two-jaw surgery for 22 patients with facial asymmetry (menton deviation > 3 mm). We used the labrale superius (Ls), deviated/non-deviated-side cheilions (Ch-D/Ch-ND), and labrale inferius (Li) to construct the upper and lower lip planes to evaluate the lip asymmetry. A correlation analysis was performed to determine the factors related to the vertical change in the cheilions (ΔChZ-D/ND). In the transverse axis, Ch-D and Li moved to improve the asymmetry after surgery. All landmarks, except the Ls, moved backward in the anteroposterior axis. In the vertical axis, significant upward movement was observed in all hard tissue landmarks; however, there were no significant changes in the soft tissue. In the lip plane, the difference in the height of Ch-D and Ch-ND was significantly reduced (1.38 mm vs. 0.72 mm). In the anteroposterior axis, the ΔChZ-D/ND showed significant correlations with the mandibular setback. In the vertical axis, the ΔCh-ND showed significant correlations with the maxillary impaction of the non-deviated side. The improvement in lip asymmetry post-surgery was mainly achieved by the movement of the lower lip and Ch-D rather than the upper lip and Ch-ND.https://www.mdpi.com/2076-3417/12/18/9385lip asymmetrytwo-jaw surgerythree-dimensional CTfacial scanner |
| spellingShingle | Young-Jae Kim Sung-Hwan Choi Yoon Jeong Choi Kee-Joon Lee Sang-Hwy Lee Hyung-Seog Yu Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner Applied Sciences lip asymmetry two-jaw surgery three-dimensional CT facial scanner |
| title | Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner |
| title_full | Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner |
| title_fullStr | Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner |
| title_full_unstemmed | Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner |
| title_short | Three-Dimensional Change of Lip after Two-Jaw Surgery in Facial Asymmetry Using Facial Scanner |
| title_sort | three dimensional change of lip after two jaw surgery in facial asymmetry using facial scanner |
| topic | lip asymmetry two-jaw surgery three-dimensional CT facial scanner |
| url | https://www.mdpi.com/2076-3417/12/18/9385 |
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