Document Detail


Soft-tissue mobility of the lower face depending on positional changes and age: a three-dimensional morphometric surface analysis.
MedLine Citation:
PMID:  23357998     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: : Reliable evaluation of the complex three-dimensional anatomy of the face has proven to be extremely difficult. Three-dimensional surface scanning technology has not yet reached widespread acceptance in clinical research in plastic surgery. This study aimed to describe two parameters that allow quantification of soft-tissue movements and to compare the surface changes of the lower face during positional changes and with increasing age.
METHODS: : Two groups, each with 20 voluntary female subjects aged 20 to 35 and 45 to 60 years, were examined with a three-dimensional surface scanner in both supine and sitting positions. After registration of the two surface scans, the soft-tissue mobility of the lower face was examined using two new parameters. Deformability describes the mean distance between the surfaces and stretchability describes the relative stretching of one surface when mapped onto the other.
RESULTS: : Both parameters show highly significant differences for tissue mobility of young versus old lower faces. The trend for the soft tissues to lose projection in the upper posterior aspect and gain projection in the lower anterior aspect increases strongly. In the older subjects, larger parts of the examined area show tissue displacements of up to 6 mm, whereas in the young faces the displacement is far less and does not exceed 4 mm.
CONCLUSION: : Computational analysis of the authors' experimental results using two new parameters shows a statistically significant increase of facial tissue displacement and surface stretching when comparing young and old subjects.
Authors:
Niklas Iblher; Evgeny Gladilin; Björn G Stark
Related Documents :
24778988 - Prevalence of malocclusion among adolescents in south indian population.
20645338 - Redox sorption and recovery of silver ions as silver nanocrystals on poly(aniline-co-5-...
20146448 - Pt-ag catalysts as cathode material for oxygen-depolarized electrodes in hydrochloric a...
20458568 - Organochlorine residues in south american sea lions, otaria flavescens (shaw, 1800): bi...
11272618 - Uses of rasch scaling in the measurement of cognitive development and growth.
3194078 - The 1985 national immunisation survey: diphtheria, tetanus, and pertussis (whooping cough)
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plastic and reconstructive surgery     Volume:  131     ISSN:  1529-4242     ISO Abbreviation:  Plast. Reconstr. Surg.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1306050     Medline TA:  Plast Reconstr Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  372-81     Citation Subset:  AIM; IM    
Affiliation:
Freiburg and Mannheim, Germany From the Department of Plastic and Hand Surgery, University Medical Center Freiburg, Erich Lexer Clinic, and BonaForma.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Montreal Children's Hospital Formula for Nasoalveolar Molding Cleft Therapy.
Next Document:  Plastic surgery and smoking: a prospective analysis of incidence, compliance, and complications.