An Innovative Assessment of the Dynamics of Facial Movements in Surgically Managed Unilateral Cleft Lip and Palate Using 4D Imaging

Overview

Journal Cleft Palate Craniofac J

Specialties Dentistry
General Surgery

Date 2020 May 19

PMID 32419475

Citations 5

Authors

Shyam Gattani

Xiangyang Ju

Toby Gillgrass

Aileen Bell

Ashraf Ayoub

Affiliations

Soon will be listed here.

Abstract

Objective: Assess facial asymmetry during maximum smile in patients with surgically managed unilateral cleft lip and palate (UCLP), using a dynamic 3-dimensional (3D) imaging (4-dimensional) system.

Design: Prospective 2 cohort comparative study.

Methods: Twenty-five surgically managed UCLP cases and 75 controls at 8 to 10 years of age were recruited. Facial movements during maximum smile were recorded using video stereophotogrammetry at a rate of 60 3D facial images per second. Maximum smile took approximately 3 seconds and generated 180 3D facial images for the analysis. A generic facial mesh which consists of more than 7000 quasi landmarks was used for the assessment of facial asymmetry at 5 key 3D frames representing the pattern of maximum smile.

Results: Statistically significant differences were seen regarding the magnitude of facial asymmetry between the UCLP group and the noncleft controls. Higher average asymmetry in the UCLP group was seen in the 3D frame midway between maximum smile and rest (frame 4) followed by the frame at peak expression of maximum smile (frame 3). The average magnitude of nasolabial asymmetry of the control group was within 0.5 mm in comparison with the UCLP cases which was about 1.8 mm.

Conclusion: This study provided for the first time, an objective tool for analysis of the dynamics of muscle movements which provided an unprecedented insight into the anatomical basis of the residual dysmorphology. The research demonstrates the limitations of the primary lip repair in achieving symmetrical results and underpins the required refinements to improve the quality of surgical repair of cleft lip.

Citing Articles

Longitudinal Three-Dimensional Stereophotogrammetric Growth Analysis in Infants with Unilateral Cleft Lip and Palate from 3 to 12 Months of Age.

Kluge J, Bruggink R, Pandis N, Unkovskiy A, Jost-Brinkmann P, Kuijpers-Jagtman A J Clin Med. 2023; 12(20).

PMID: 37892569 PMC: 10607132. DOI: 10.3390/jcm12206432.

The impact of orthodontic-surgical treatment on facial expressions-a four-dimensional clinical trial.

Quast A, Sadlonova M, Asendorf T, Derad C, Mouchoux J, Horn J Clin Oral Investig. 2023; 27(10):5841-5851.

PMID: 37561212 PMC: 10560183. DOI: 10.1007/s00784-023-05195-9.

3D assessment of the nasolabial region in cleft models comparing an intraoral and a facial scanner to a validated baseline.

Olmos M, Matta R, Buchbender M, Jaeckel F, Nobis C, Weber M Sci Rep. 2023; 13(1):12216.

PMID: 37500683 PMC: 10374634. DOI: 10.1038/s41598-023-39352-7.

The Validation of an Innovative Method for 3D Capture and Analysis of the Nasolabial Region in Cleft Cases.

Ayoub A, Khan A, Aldhanhani A, Alnaser H, Naudi K, Ju X Cleft Palate Craniofac J. 2020; 58(1):98-104.

PMID: 32783457 PMC: 7739118. DOI: 10.1177/1055665620946987.

The effect of resting morphological lip shape during lip movement: A three-dimensional motion analysis study.

Nasir S, Popat H, Richmond S Heliyon. 2020; 6(6):e04093.

PMID: 32514484 PMC: 7267716. DOI: 10.1016/j.heliyon.2020.e04093.

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