Abstract
Objective:
The aim of this study was to develop a reliable threedimensional (3D) analysis of facial soft tissues. We determined the mean sagittal 3D values and relationships between sagittal skeletal parameters, and digitally recorded 3D soft tissue parameters.
Patients and Methods:
A total of 100 adult patients (nª = 53, nº = 47) of Caucasian ethnic origin were included in this study. Patients with syndromes, cleft lip and palate, noticeable asymmetry or anomalies in the number of teeth were excluded. Arithmetic means for seven sagittal 3D soft tissue parameters were calculated. The parameters were analyzed biometrically in terms of their reliability and gender-specific differences. The 3D soft tissue values were further analyzed for any correlations with sagittal cephalometric values.
Results:
Reproducible 3D mean values were defined for 3D soft tissue parameters. We detected gender-specific differences among the parameters. Correlations between the sagittal 3D soft tissue and cephalometric measurements were statistically significant.
Conclusion:
3D soft tissue analysis provides additional information on the sagittal position of the jaw bases and on intermaxillary sagittal relations. Further studies are needed to integrate 3D soft tissue analysis in future treatment planning and assessment as a supportive diagnostic tool.
Zusammenfassung
Zielsetzung:
Ziel dieser Untersuchung war die Entwicklung einer reliablen dreidimensionalen (3D) Analyse der Gesichtsweichteile. Es sollten sagittale 3D-Durchschnittswerte bestimmt werden und Beziehungen zwischen sagittalen skelettalen Parametern und digital erfassten 3D-Weichteilparametern dargestellt werden.
Patienten und Methodik:
In die Studie eingeschlossen wurden 100 erwachsene Patienten (nª = 53, nº = 47) kaukasischer Herkunft. Ausgeschlossen wurden Patienten mit Syndromen, LKGSSpalten, auffälligen Asymmetrien oder Anomalien der Zahnzahl. Es wurden arithmetische Mittelwerte für sieben sagittale 3DWeichteilparameter ermittelt. Die Parameter wurden biometrisch hinsichtlich ihrer Reliabilität und geschlechtsspezifischer Unterschiede analysiert. Des Weiteren wurden die 3D-Weichteilwerte bezüglich bestehender Korrelationen zu sagittalen kephalometrischen Werten untersucht.
Ergebnisse:
Für die 3D-Weichteilparameter konnten reproduzierbare 3D-Durchschnittswerte definiert werden. Innerhalb der Parameter ließen sich geschlechtsspezifische Unterschiede feststellen. Die Korrelationen zwischen den sagittalen 3D-Weichteilmessungen und den kephalometrischen Messungen waren statistisch signifikant.
Schlussfolgerung:
Die 3D-Weichteilanalyse lässt Aussagen sowohl über den sagittalen Einbau der Kieferbasen als auch über die sagittalen intermaxillären Beziehungen zu. Weitere Untersuchungen sind wünschenswert, um die 3D-Weichteildiagnostik zukünftig als unterstützendes diagnostisches Instrument in die Behandlungsplanung und -bewertung integrieren zu können.
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Kochel, J., Meyer-Marcotty, P., Strnad, F. et al. 3D Soft Tissue Analysis – Part 1: Sagittal Parameters. J Orofac Orthop 71, 40–52 (2010). https://doi.org/10.1007/s00056-010-9926-x
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DOI: https://doi.org/10.1007/s00056-010-9926-x