The three-dimensional effects of orthodontic treatment on the facial soft tissues – a preliminary study.

Ismail, Shamique; Moss, J.P.

doi:10.1038/sj.bdj.4801305

Cited by 19 publications

(9 citation statements)

References 18 publications

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“…Labiale superius and the christa philtri right and left landmarks advanced by a non-significant mean of around 2mm and contrasts with the cephalometric findings of Quintao et al (23) who reported retraction of the upper lip with a Twin-block appliance in a Brazilian sample.…”

Section: Discussioncontrasting

confidence: 89%

“…Surface volumetric differences between the images were then accurately recorded by the software (22) and colour-coded as follows: blue -greater volume; red -lesser volume; greenno change, with the colour intensity indicating magnitude of volumetric change. To minimise disturbance during registration, the forehead and bridge of nose, an area of the face unlikely to be affected by MTBA treatment, was used for superimposition (23).…”

Section: Methodsmentioning

confidence: 99%

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Soft tissue changes: a comparison between changes caused by the construction bite and by successful treatment with a modified Twin-block appliance

Salloum

Millett

Kelly

et al. 2017

European Journal of Orthodontics

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Section: Discussioncontrasting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Soft tissue changes: a comparison between changes caused by the construction bite and by successful treatment with a modified Twin-block appliance

Salloum

Millett

Kelly

et al. 2017

European Journal of Orthodontics

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“…by facial surface laser scanning and 3D stereophotogrammetry), many studies have recently reported the construction of 3D average faces. [33][34][35] Hutton et al 33 built surface models from 421 facial scans of subjects that were used to assist in the diagnosis of Noonan's Syndrome. Average faces have also been described by Ismail and Moss 34 and by Kau et al, 35 who mainly used them for application in clinical orthodontics.…”

Section: Discussionmentioning

confidence: 99%

An average three-dimensional virtual human skull for a template-assisted maxillofacial surgery

et al. 2019

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Introduction: Although many advances have been made in three-dimensional virtual planning in maxillofacial surgery, facial harmony is still difficult to achieve and is heavily dependent on the surgeon’s experience. The aim of the study is to present a method to build up an average three-dimensional virtual human skull to be used as a reference template for bone repositioning and reconstruction during maxillofacial surgical interventions. Methods: A total of 20 patients (10 females and 10 males) were selected for the optimal outcome after orthognathic surgery. Postoperative cone-beam computed tomography scans were collected and processed in order to obtain three-dimensional digital models of each skull. For male and female subgroups, the three-dimensional skull models were registered and an average three-dimensional virtual skull model was computed. Deviation color maps were calculated to show differences between each postoperative skull model in the population and the obtained average three-dimensional skull. A clinical use case of genioplasty treatment assisted by the provided average three-dimensional skull template was presented. Results: The overall mean deviation from the average three-dimensional skull model was 1.3 ± 0.6 and 1.6 ± 0.5 mm in male and female subgroups, respectively. For both groups, the greatest deviations were at the area of the mandible, while almost no deviation was found at the zygomatic and orbital areas. In the presented use case, the female average three-dimensional skull model was effectively used for guiding surgical planning. Conclusion: The presented method of obtaining an average three-dimensional virtual human skull may offer the interesting perspective of performing an innovative template-assisted maxillofacial surgery.

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“…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%

“…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.…”

Section: Introductionunclassified

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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The three-dimensional effects of orthodontic treatment on the facial soft tissues – a preliminary study.

Cited by 19 publications

References 18 publications

Soft tissue changes: a comparison between changes caused by the construction bite and by successful treatment with a modified Twin-block appliance

Soft tissue changes: a comparison between changes caused by the construction bite and by successful treatment with a modified Twin-block appliance

An average three-dimensional virtual human skull for a template-assisted maxillofacial surgery

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

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