University of Oulu

Nike, E., Radzins, O., Pirttiniemi, P., Vuollo, V., Slaidina, A., & Abeltins, A. (2022). Evaluation of facial soft tissue asymmetric changes in Class III patients after orthognathic surgery using three-dimensional stereophotogrammetry. International Journal of Oral and Maxillofacial Surgery. https://doi.org/10.1016/j.ijom.2022.06.022

Evaluation of facial soft tissue asymmetric changes in Class III patients after orthognathic surgery using three-dimensional stereophotogrammetry

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Author: Nike, E.1; Radzins, O.2; Pirttiniemi, P.3;
Organizations: 1Department of the Orthodontics, Institute of Stomatology, Rīga Stradiņš University, Riga, Latvia
2Baltic Biomaterials Centre of Excellence, Institute of Stomatology, Rīga Stradiņš University, Riga, Latvia
3Department of Oral Development and Orthodontics, Faculty of Medicine, Oulu University, Oulu, Finland
4Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland
5Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
6Department of Prosthodontics, Institute of Stomatology, Riga Stradiņš University, Riga, Latvia
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe202301041472
Language: English
Published: Elsevier, 2022
Publish Date: 2023-07-21
Description:

Abstract

The aim of this study was to investigate changes in facial soft tissue asymmetry over time after orthognathic surgery in Class III patients using three-dimensional stereophotogrammetry. The study included 101 patients with a skeletal Class III malocclusion (72 female, 29 male; age range 19–53 years, mean age 28.6 years) who underwent orthognathic surgery. The minimum follow-up was 12 months. Three-dimensional photographs were acquired using the 3dMDtrio stereophotogrammetry system, and 21 anthropometric landmark positions were evaluated at three time points: before surgery (T0), 6 months (T1) and 12 months (T2) after surgery. Facial asymmetry was assessed and classified as follows: 0–2 mm, mild; 2–5 mm, moderate;> 5 mm, severe. The average distance for whole face asymmetry differed between T0 (median 0.76 mm) and T1 (median 0.70 mm); however, there was no statistically significant difference at any time point. The chin volume asymmetry score differed significantly between T0 (median 1.11 mm) and T1 and T2 (median 1.08 mm for both; P < 0.001 and P = 0.001, respectively), but not between T1 and T2 (P = 0.061). The study findings indicate that the asymmetry of the facial soft tissues has the potential to return after 6 months, without reaching the baseline.

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Series: International journal of oral and maxillofacial surgery
ISSN: 0901-5027
ISSN-E: 1399-0020
ISSN-L: 0901-5027
Volume: In press
DOI: 10.1016/j.ijom.2022.06.022
OADOI: https://oadoi.org/10.1016/j.ijom.2022.06.022
Type of Publication: A1 Journal article – refereed
Field of Science: 313 Dentistry
Subjects:
Funding: Funding for the research was provided by the Institute of Stomatology, Rīga Stradiņš University, Riga, Latvia.
Copyright information: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/