Surgical Prediction of Skeletal and Soft Tissue Changes in Class III Treatment

Lira, Ana de Lourdes Sá de; Moura, Walter Leal de; Vieira, José Maurício de Barros; Nojima, Matilde Gonçalves; Nojima, Lincoln Issamu

doi:10.1016/j.joms.2012.01.001

Cited by 17 publications

(8 citation statements)

References 24 publications

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“…A similar result of low prediction accuracy for the lower lip region is reported by Pektas et al [11]. Conversely, two articles affirmed that the statistical differences between Dolphin soft tissue prediction and the real outcome of the patient did not invalidate the software prediction, as it was close to real surgical results [12,13].…”

Section: Discussionsupporting

confidence: 66%

“…Nevertheless, authors concluded that statistically the differences in the considered measurements do not invalidate the surgical prediction generated with the software, because the predicted result was close to the surgical outcome. Moreover, they noticed that concerning the mandible, dentoskeletal measurements in horizontal and vertical directions showed a greater correlation to the profile than the maxillary measurements [13].…”

Section: Journalmentioning

confidence: 99%

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3D Soft-Tissue Prediction Methodologies for Orthognathic Surgery—A Literature Review

et al. 2019

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Three-dimensional technologies have had a wide diffusion in several fields of application throughout the last decades; medicine is no exception and the interest in their introduction in clinical applications has grown with the refinement of such technologies. We focus on the application of 3D methodologies in maxillofacial surgery, where they can give concrete support in surgical planning and in the prediction of involuntary facial soft-tissue changes after planned bony repositioning. The purpose of this literature review is to offer a panorama of the existing prediction methods and software with a comparison of their reliability and to propose a series of still pending issues. Various software are available for surgical planning and for the prediction of tissue displacements, but their reliability is still an unknown variable in respect of the accuracy needed by surgeons. Maxilim, Dolphin and other common planning software provide a realistic result, but with some inaccuracies in specific areas of the face; it also is not totally clear how the prediction is obtained by the software and what is the theoretical model they are based on.

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Section: Discussionsupporting

confidence: 66%

Section: Journalmentioning

confidence: 99%

3D Soft-Tissue Prediction Methodologies for Orthognathic Surgery—A Literature Review

et al. 2019

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“…Class III patients treated with either camouflage or surgery treatment are likely to finish with slightly proclinated maxillary incisors [ 17 ]. Generally, surgical treatment results in greater skeletal change, involving normalization of the skeletal base relationship, reduction in chin prominence, and more favorable lips and chin contours [ 16 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Profile Attractiveness between Class III Orthodontic Camouflage and Predictive Tracing of Orthognathic Surgery

Wadi¹,

Freitas²,

Freitas³

et al. 2020

International Journal of Dentistry

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Objective. The aim of this study was to compare the profile attractiveness between orthodontic camouflage of the Class III malocclusion and the predictive tracing simulating orthognathic surgery evaluated by dentists and laypeople. Settings and sample population. The sample consisted of 21 patients (9 male; 12 female) with Class III malocclusion treated with orthodontic camouflage and Class III intermaxillary elastics. Material and Methods. The mean initial age of the patients was 24.38 years (SD 3.32), and the mean ANB angle was −1.91° (SD 0.83°). Patients presented skeletal Class III and normal growth patterns. Initial and final lateral cephalograms of each patient were used. The initial cephalogram was used to perform the treatment simulation of orthognathic surgery, and its silhouette was compared to the silhouette obtained from the final cephalogram after Class III orthodontic camouflage. A subjective analysis of profile attractiveness was performed by 47 laypeople and 60 dentists, with scores from 1 (less attractive) to 10 (most attractive). Mann–Whitney tests were used to compare profile attractiveness between the orthodontic treatment and the predictive tracing groups and between dentists and laypeople. Results. The predictive tracing of orthognathic surgery showed to be statistically significantly more attractive (mean score 4.57, SD 2.47) than that of the Class III camouflage orthodontic treatment (mean score 4.22, SD 2.40), with a mean numerical but significant difference of 0.35 (SD 2.01) (P<0.001). Laypeople were more critical than dentists in evaluating profile attractiveness, but numerical difference between the groups was also small. Conclusion. The profile silhouette of predictive tracing simulating orthognathic surgery showed to be more attractive than that of Class III camouflage orthodontic treatment; however, differences were small but statistically significant. Laypeople showed to be more critical than dentists.

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“…Various studies have evaluated the precision of such computerised programs in predicting the postoperative profile with all possible surgical options. [5][6][7] Chew 8 found that movements of hard and soft tissue after bimaxillary surgery strongly correlated horizontally, but not vertically. However, Marsan et al 9 reported that movements of maxillary and mandibular soft and hard tissue correlated significantly in both horizontal and vertical directions after bimaxillary surgery.…”

Section: Introductionmentioning

confidence: 99%

Effect of maxillary advancement on the change in the soft tissues after treatment of patients with class III malocclusion

Ghassemi¹,

Hilgers²,

Jamilian³

et al. 2015

British Journal of Oral and Maxillofacial Surgery

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Surgical Prediction of Skeletal and Soft Tissue Changes in Class III Treatment

Cited by 17 publications

References 24 publications

3D Soft-Tissue Prediction Methodologies for Orthognathic Surgery—A Literature Review

3D Soft-Tissue Prediction Methodologies for Orthognathic Surgery—A Literature Review

Comparison of Profile Attractiveness between Class III Orthodontic Camouflage and Predictive Tracing of Orthognathic Surgery

Effect of maxillary advancement on the change in the soft tissues after treatment of patients with class III malocclusion

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