Usefulness of a polygonal chart of 3D facial soft tissue for treatment of jaw deformity in Japanese females
<p>Background: Assessment of the soft and hard tissue configuration of the craniofacial complex is important for planning the treatment of jaw deformity. To avoid unsatisfactory postoperative outcomes, it is necessary to establish a guideline to demonstrate the region and degree of preoperativ...
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| Format: | Article NonPeerReviewed |
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[Yogyakarta] : Fak.Kedokteran Gigi Universitas Gadjah Mada
2012
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| Online Access: | https://repository.ugm.ac.id/96130/ http://repository.ugm.ac.id/digitasi/index.php?module=cari_hasil_full&idbuku=3948 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | <p>Background: Assessment of the soft and hard tissue configuration of the craniofacial complex is important for planning the treatment of jaw deformity. To avoid unsatisfactory postoperative outcomes, it is necessary to establish a guideline to demonstrate the region and degree of preoperative facial deformation precisely and to clarify the approach to address the patient's complaint. In this study, we evaluated the three-dimensional (3D) soft tissue configuration of Japanese females in order to establish a polygonal view of facial soft tissue deformity, and assess the usefulness of this polygonal chart.<br />
Methods: A soft tissue polygonal chart was constructed based on the mean and S.D. of 20 Japanese females with class I occlusion. 3D measurements were carried out using a non-contact laser scanning system. Surface scanning was done at pre-operation and over a 6-month post-operative period. 17 soft tissue landmarks were set on each 3D image and used to calculate a set of selected parameters. Furthermore, 3 patients who underwent different orthognathic surgeries were used to assess the pre- and post-operative facial configurations by applying the soft tissue polygonal chart.<br />
Results: Preoperatively, the measurement results of the polygonal chart could demonstrate the location, direction, and severity of facial deformities, such as protrusion or deviation, with quantitative values. The significant variances characteristically demonstrated in three patients were altered into the normal levels postoperatively. In asymmetric patients, deviation in the mental area disappeared postoperatively, but a small deviation remained when compared to the controls.<br />
Conclusion: This soft tissue polygonal chart will be a useful index for diagnosis and for planning treatments in patients with jaw deformity</p> |
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