Abstract

The lip-splitting approach enables excellent access to all areas of the mouth and pharynx to remove tumors; however, traditional lower lip-splitting incisions produce an unsatisfactory scar. To achieve better functional and aesthetic results, we used a Z-shaped incision and compared the functional and aesthetic outcomes of the straight and Z-shaped incisions. Sixty patients who fulfilled the inclusion criteria were randomly divided into two groups and underwent lip-splitting between March 2021 and September 2023. Eventually, 77 patients were reviewed within 6 months and evaluated using the lip function assessment scale, patient and observer scar assessment scale, naïve observer scar assessment scale, and a clinical examination. The Z-shaped incision group performed better in terms of the lip pout movement at 3 months and in the subjective overall opinion, color, irregularity, and pigmentation at 6 months. The Z-shaped incision group had a lower incidence of notched vermilion. In conclusion, Z-shaped lower lip-splitting incisions have better functional and aesthetic outcomes than traditional straight incisions.

Trial registration: Public title: Difference between the effect of Z-shaped and vertical incisions of labiobuccal flap on the recovery of lower lip scars. Registration date: 09/03/2021. Registration number: ChiCTR2100044084. Registry URL: http://www.chictr.org.cn.

Details

Title
Functional and aesthetic results of the Z-shaped and straight lower lip-splitting incision: a randomized clinical trial
Author
Miao, Cheng 1 ; Zheng, Ying 2 ; Ma, Zhongkai 3 ; Bai, Lu 4 ; Hong, Guang 5 ; Li, Longjiang 3 ; Li, Chunjie 3 

 Sichuan University, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581); Sichuan University, Department of Head and Neck Oncology, West China Hospital of Stomatology, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581); Tohoku University Graduate School of Dentistry, Division for Globalization Initiative, Sendai, Japan (GRID:grid.69566.3a) (ISNI:0000 0001 2248 6943) 
 Chengdu Sixth People’s Hospital, Chengdu, China (GRID:grid.460068.c) (ISNI:0000 0004 1757 9645); Sichuan University, West China School of Nursing, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581) 
 Sichuan University, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581); Sichuan University, Department of Head and Neck Oncology, West China Hospital of Stomatology, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581) 
 Sichuan University, State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581); Sichuan University, West China School of Nursing, Chengdu, China (GRID:grid.13291.38) (ISNI:0000 0001 0807 1581) 
 Tohoku University Graduate School of Dentistry, Division for Globalization Initiative, Sendai, Japan (GRID:grid.69566.3a) (ISNI:0000 0001 2248 6943) 
Pages
18699
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3092133777
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.