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Three-dimensional topography of facial soft tissues for the safer and effective threading procedures

 Kang-Woo Lee  ;  Jeung Hyun Yoon  ;  Ji-Soo Kim  ;  Kyung-Seok Hu  ;  Hee-Jin Kim 
 CLINICAL ANATOMY, Vol.34(7) : 1050-1058, 2021-10 
Journal Title
Issue Date
facial skin and superficial fat thickness ; thread lifting ; three-dimensional scanning system
Introduction: To reduce complications caused by the procedure, the target layer for thread lifting should be the superficial fat or superficial musculoaponeurotic system of the face. The aim of this study was to establish the thicknesses of the facial skin and superficial fat using a 3D scanning system to provide basic clinical data for thread lifting.

Material and methods: Thirty fixed Korean and Thai cadavers (male: 17, female: 13) were used. The depths of the skin and superficial fat were measured using a three dimensional (3D) structured-light scanner. Facial images of both undissected and removed skin and superficial fat were taken with the 3D scanner. The paths from the temple and the front of the tragus to the infraorbital, perioral, cheek, and mental areas were displayed on the 3D image. The thickness along the path was measured by calculating the difference between the undissected and dissected 3D images.

Results: The means and standard deviations of thicknesses of the skin and superficial fat were 2.1 ± 0.4 mm and 5.2 ± 1.9 mm in the 11 pathways. The facial skin became thicker going toward the lower aspect of the face from temple to infraorbtial and perioral regions. The thickness of the superficial fat around the marionette line showed the biggest change.

Conclusions: The present findings indicate that a 3D scanning system can yield crucial anatomical information about the thickness of the facial skin and superficial fat for use in various minimally invasive clinical procedures including thread lifting.
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2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Lee, Kang Woo(이강우)
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
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