Three-Dimensional Soft Tissue Prediction Using Finite Elements

Holberg, Christof; Schwenzer, K.; Rudzki-Janson, Ingrid

doi:10.1007/s00056-005-0421-8

Cited by 23 publications

(29 citation statements)

References 25 publications

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“…In addition to linear measurements of facial morphology, surface, angle and volume calculations were also realized. In addition to 3D visualization, these procedures also allow dynamic analysis of prognoses [24]. Newer 3D digital photogrammetry devices are being increasingly employed in addition to the laser scanner [29].…”

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confidence: 99%

Implementing a Superimposition and Measurement Model for 3D Sagittal Analysis of Therapy-induced Changes in Facial Soft Tissue: a Pilot Study

et al. 2010

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As an accurate, non-invasive, millisecond-fast, non-ionizing and ad infinitum repeatable procedure, 3D digital surface photogrammetry is very well suited for clinical and scientific application in orthodontics. We developed a reliable superimposition and measurement model with 3D digital surface photogrammetry. This new capturing and measurement system provides a simple means of determining 3D changes in facial soft tissue. Our landmarks proved to be highly reproducible for the midface while revealing good reproducibility for the lower face.

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confidence: 99%

Implementing a Superimposition and Measurement Model for 3D Sagittal Analysis of Therapy-induced Changes in Facial Soft Tissue: a Pilot Study

et al. 2010

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“…The response of facial soft tissues during orthodontic treatment has been the subject of numerous studies [19]. The results of soft tissue changes have thus far been interpreted two-dimensionally with the aid of lateral cephalograms [31].…”

Section: Introductionmentioning

confidence: 99%

“…3D soft tissue changes following functional jaw orthopedic treatment [39], after extraction or non-extraction treatment [24] and following orthognathic surgery [3,20,31,32,36,40,46] have been analyzed by the laser scanner system. Using the technique of stereophotogrammetry, however, treatmentrelated studies on soft tissue changes have concentrated on the specialized field of oral and maxillofacial surgery [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…There are numerous analyses of the facial morphology of cleft lip and palates using different 3D techniques in the literature [1,2,11,14,22,29,42,43,53]. Although there have been a few Einleitung Das Verhalten der fazialen Weichteile im Rahmen einer kieferorthopädischen Behandlung ist Gegenstand vieler Untersuchungen [19]. Bisher werden noch die Interpretationen des Ergebnisses von Weichteilveränderungen unter Zuhilfenahme von Fernröntgenseitenbildern des Schädels zweidimensional durchgeführt [31].…”

Section: Introductionunclassified

“…3D-Weichgewebeveränderungen sind nach funktionskieferorthopädischer Behandlung [39], nach Extraktionsoder Nichtextraktionstherapie [24] und nach orthognathischer Chirurgie [3,20,31,32,36,40,46] mit dem Laserscannersystem analysiert worden. Mit der Technik der Stereophotogrammetrie konzentrieren sich jedoch die the-3D studies on the static facial morphology changes in adult cleft lip and palate patients following surgery with skeletal displacement [32,35], there are still no 3D studies explicitly investigating the influence of therapeutic measures on dynamic soft tissue changes in the facial morphology of growing children with cleft lip and palate.…”

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3D Soft Tissue Changes in Facial Morphology in Patients with Cleft Lip and Palate and Class III Mal occlusion under Therapy with Rapid Maxillary Expansion and Delaire Facemask

et al. 2010

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Aim: Rapid Maxillary Expansion (RME) and Delaire facemask are a well-established treatment method for patients with cleft lip and palate and Class III malocclusion. Several roentgenocephalometric studies on skeletal effects of this therapy are known. However, there are no systematic studies on soft tissue changes. The aim of this study was to analyze three-dimensionally the soft tissue changes in facial morphology of children with cleft lip and palate and Class III malocclusion under therapy with RME and Delaire facemask. Patients and Method: A prospective longitudinal clinical trial was undertaken. 29 children between 4.1 and 6.4 years were divided into four groups: eight patients with unilateral cleft lip and palate (group 1), six patients with isolated cleft palate (group 2), eight patients with Class III malocclusion (group 3). The mean treatment period with RME and Delaire mask was 8.2 months. Seven untreated children with no need of orthodontic treatment were chosen as the control (group 4). Two 3D images, one at the beginning and one at the end of the study, were generated with the DSP 400© imaging system. Both images were superimposed ten times and measured ten times. Results: We detected significant forward rotation and forward displacement of the soft tissue in the lower midface with the dentoalveolar areas in all patient groups. No significant asymZusammenfassung Ziel: Die Gaumennahterweiterung (GNE) und Delaire-Maske stellen ein etabliertes Therapieverfahren bei Patienten mit LippenKiefer-Gaumen-(LKG-)Spalten und Klasse-III-Anomalien dar. Viele röntgenkephalometrische Studien zum skelettalen Effekt dieser Therapie liegen vor. Systematische Untersuchungen zu Weichgewebeveränderungen fehlen jedoch. Ziel dieser Studie war es, die Weich gewebeveränderungen der Gesichtsmorphologie von Kindern mit Spaltbildungen und Klasse-III-Anomalien unter Therapie mit GNE und Delaire-Maske dreidimensional aufzuzeigen. Patienten und Methodik: Es wurde eine klinische prospektive Longitudinaluntersuchung mit 29 in vier Gruppen eingeteilten Kindern zwischen 4,1 und 6,4 Jahren durchgeführt. Acht Patienten mit einseitiger LKG-Spalte (Gruppe 1), sechs mit isolierter Gaumenspalte (Gruppe 2) und acht mit Klasse-III-Anomalie (Gruppe 3) wurden im Durchschnitt 8,2 Monate mit GNE und Delaire-Maske behandelt und untersucht. Sieben unbehandelte Kinder ohne kieferorthopädischen Behandlungsbedarf dienten als Kontrolle (Gruppe 4). Zwei 3D-Abbildungen, eine zum Untersuchungsbeginn und eine zum Untersuchungsende, wurden mit dem DSP-400©-System generiert, zehnfach überlagert und zehnfach vermessen. Ergebnisse: In allen Gruppen konnte eine signifikante Vorschwenkung und Vorverlagerung des Weichgewebes im unteren Mittelgesicht mit den dento-alveolären Bereichen nachgewiesen werden. Keine signifikante asymmetrische Vorverlagerung der Maxilla, weder im unteren noch im oberen Mittelgesicht, konnte beobachtet werden -auch nicht bei den einseitigen LKG-Spalten. Zwischen den Sade Hoefert C, et al. 3D faziale Weichgewebeveränderungen bei Spaltpatien...

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Soft Tissue Changes and Prediction with Orthognathic Surgery

Gupta

Schendel²

2022

Peterson’s Principles of Oral and Maxillofacial Surgery

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Three-Dimensional Soft Tissue Prediction Using Finite Elements

Abstract: The procedure outlined herein makes the reliable generation of patient-specific simulation models possible for facial soft tissue prediction in orthodontics.

Cited by 23 publications

References 25 publications

Implementing a Superimposition and Measurement Model for 3D Sagittal Analysis of Therapy-induced Changes in Facial Soft Tissue: a Pilot Study

Implementing a Superimposition and Measurement Model for 3D Sagittal Analysis of Therapy-induced Changes in Facial Soft Tissue: a Pilot Study

3D Soft Tissue Changes in Facial Morphology in Patients with Cleft Lip and Palate and Class III Mal occlusion under Therapy with Rapid Maxillary Expansion and Delaire Facemask

Soft Tissue Changes and Prediction with Orthognathic Surgery

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