Accuracy of 3-dimensional soft tissue prediction for orthognathic surgery in a Chinese population

Lee, Ker Jia Cheryl; Tan, Suat Li; Low, Hui Yin Ada; Chen, Lu Jie; Yong, Chee Weng; Chew, Ming Tak

doi:10.1016/j.jormas.2021.08.001

Cited by 11 publications

(37 citation statements)

References 34 publications

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“…The facial morphology simulation, which is widely used in orthognathic surgery, provided surgeons and patients with a better soft tissue prediction before treatment [ 33 , 34 , 35 ]. However, this simulation method is less reported in condylar OC patients.…”

Section: Discussionmentioning

confidence: 99%

Clinical Application of Individualized 3D-Printed Templates in the Treatment of Condylar Osteochondroma

Niu

Wang

et al. 2022

Healthcare

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Background: Osteochondroma (OC) is one of the most common benign tumors of the long bones, but it rarely occurs in the maxillofacial skeleton. However, mandibular condylar OC often leads to severe facial deformity in affected patients, including facial asymmetry, deviation of the chin, and malocclusion. This study aimed to explore the clinical application of individualized 3D-printed templates to accurately and effectively treat condylar OC. Methods: A total of 8 patients with mandibular condylar OC were treated from July 2015 to August 2021. The enrolled patients (5 women and 3 men) had a median age of 27 years (range: 21–32 years). All patients exhibited symptoms of facial asymmetry and occlusal disorders preoperatively. The digital software used to virtually design the process consisted of three-dimensional reconstruction, 3D-cephalometry analysis, virtual surgery, individualized templates, and postoperative facial soft-tissue prediction. A set of 3D-printed templates (DOS and DOT) were used in all cases to stabilize the occlusion and guide the osteotomy. Then, pre- and post-operative complications, mouth opening, clinical signs, and the accuracy of the CT imaging analysis were all evaluated. All the measurement data were presented as means ± SD; Bonferroni and Tamhane T2 multiple comparison tests were used to examine the differences between the groups. Results: All patients healed uneventfully. None of the patients exhibited facial nerve injury at follow-up. In comparing the condylar segments with T0p and T1, the average deviation of the condylar segments was 0.5796 mm, indicating that the post-operative reconstructed condyles showed a high degree of similarity to the reconstruction results of the virtual surgical plan. Conclusions: Individualized 3D-printed templates simplified surgical procedures and improved surgical accuracy, proving to be an effective method for the treatment of patients with slight asymmetric deformities secondary to condylar OC.

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Section: Discussionmentioning

confidence: 99%

Clinical Application of Individualized 3D-Printed Templates in the Treatment of Condylar Osteochondroma

Niu

Wang

et al. 2022

Healthcare

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“…The presented procedure describes a technique for merging CBCT, facial scans, and diagnostic prostheses to incorporate all data into a virtual patient. For this patient, facial support was analyzed with the movements of a diagnostic prosthesis using ProPlan CMF software, which has been widely applied for accurate soft tissue prediction in dental orthopedics and orthognathics [16][17]. Meanwhile, 3D DSD based on a facial scan was used to develop a virtual simulation of aesthetic outcomes in patients with maxillofacial trauma [18][19].…”

Section: Effect or Performancementioning

confidence: 99%

A digital workflow to predict facial aesthetics in patients with maxillofacial trauma with implant retained prostheses

Wang

Shi

et al. 2023

J Prosthodont Res

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Dentation deformities caused by maxillofacial trauma may result in functional and aesthetic impairments that negatively impact patients' social functioning [1]. Harmony among the teeth, gingiva, lips, and facial components is the goal of prosthetic rehabilitation in patients with jaw reconstruction after maxillofacial trauma. However, owing to the irregular dentition and loss of soft tissue in these patients, the design and placement of diagnostic dentures have a significant impact on facial aesthetics [2][3][4]. Thus, patients' understanding of the expected surgical changes is crucial for providing assurance and enhancing postoperative satisfaction.As the availability of cone-beam computed tomography (CBCT) and three-dimensional (3D) photography has increased, 3D soft tissue prediction software has been widely used in the preoperative planning of orthognathic surgery [5][6][7]. The CBCT image (hard tissue) and 3D facial surface acquisition (soft tissue) can be merged to create a 3D composite virtual craniofacial model of a patient's face [8]. The accuracy and photorealism of the model are beneficial for diagnosis, preoperative planning, patient education, and virtual postoperative soft tissue simulation in computer-based surgical planning [9][10][11][12]. However, digital smile design (DSD) with a 3D virtual craniofacial model has rarely been applied to predict the lateral lip profile and cheek facial support in current digital design methods with modifications to the tooth/gingival shape and arrangement [13][14][15].Facially driven design is a technique that considers facial aesthetics, facial profiles, facial proportions, and harmony in oral rehabilitation. This technical procedure introduces a digital workflow for the prediction of facial aesthetics, especially in patients with denta-J Prosthodont Res. 2022; **(**):

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“…Die Angaben schwanken regional abhängig. So wurden inbesondere Unterschiede für die Nase (0,7 ± 0,2 mm -1.2 ± 0.6 mm), Oberlippe (1,1 ± 0,8-2,0 ± 0,7 mm) und Unterlippe (1,4 ± 0,8 mm -2,7 ± 1,3 mm) sowie das Kinn (2,4 ± 1,6 mm -1,0 ± 0,6 mm) ermittelt [42,43]. Dabei scheint die Genauigkeit im Bereich der Nasenregion am höchsten und am geringsten für die Unterlippe und das Kinn.…”

Section: Klinische Verlässlichkeit Der Prognostischen Weichgewebsreak...unclassified

Digitale Weichteilvorhersage im Kontext der kieferorthopädisch-kieferchirurgischen Behandlung

Möhlhenrich

Lohn

Peters

et al. 2023

Informationen aus Orthodontie & Kieferorthopädie

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ZusammenfassungOperative Eingriffe im Rahmen einer kieferorthopädisch-kieferchirurgischen Behandlung werden zunehmend digital geplant. Moderne Softwarelösungen erlauben neben der virtuellen Kieferumstellung auch die Simulation einer möglichen Weichgewebsreaktion. Etablierte Programme werden hinsichtlich der Simulationsmöglichkeiten vorgestellt und mögliche Unterschiede und Fehlerquellen aufgezeigt.

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Accuracy of 3-dimensional soft tissue prediction for orthognathic surgery in a Chinese population

Cited by 11 publications

References 34 publications

Clinical Application of Individualized 3D-Printed Templates in the Treatment of Condylar Osteochondroma

Clinical Application of Individualized 3D-Printed Templates in the Treatment of Condylar Osteochondroma

A digital workflow to predict facial aesthetics in patients with maxillofacial trauma with implant retained prostheses

Digitale Weichteilvorhersage im Kontext der kieferorthopädisch-kieferchirurgischen Behandlung

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