کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8698719 | 1585426 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Computer-aided design of facial prostheses by means of 3D-data acquisition and following symmetry analysis
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Computer-aided design of facial prostheses by means of 3D-data acquisition and following symmetry analysis Computer-aided design of facial prostheses by means of 3D-data acquisition and following symmetry analysis](/preview/png/8698719.png)
چکیده انگلیسی
The aim of this study was to investigate whether a method of designing digital models of facial prostheses was suitable for patients with orbital defects. 32 patients were included in a retrospective study. 23 of them already had a facial prosthesis. 3D-data of the faces were acquired optically using fringe projection technique without and with (if available) the facial prosthesis in place. The healthy side of the surface models was mirrored to reconstruct the defect area. By generating a NURBS-model, the edges of the virtual prostheses were adapted to the defect region. The CAD models were stored in STL format as templates for facial prostheses. Using an automatically calculated asymmetry index (AI), four situations of the digitized facial surface were analysed for symmetry: 1. with defect area excluded, 2. with mirrored healthy surface, 3. with digital CAD template, and 4. with manually produced facial prosthesis inserted (if available). Mean AI values were 6.05 ± 3.26 (situation 1), 4.79 ± 2.51 (situation 2), 5.12 ± 2.61 (situation), and 6.74 ± 2.77 (situation 4). Additionally, the CAD templates were rated by three anaplastologists. Ratings did not differ significantly. They partially agreed with the three statements “The CAD prosthesis fits harmoniously within the face”, “The CAD prosthesis could be used for a wax pattern during conventional fabrication” and “The CAD prosthesis and the wax pattern reduce workload”. The results indicate that the presented technique has the potential to increase facial symmetry and facilitate the technical procedure. However, symmetry alone is not a sufficient criterion for design of a facial prosthesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cranio-Maxillofacial Surgery - Volume 46, Issue 8, August 2018, Pages 1320-1328
Journal: Journal of Cranio-Maxillofacial Surgery - Volume 46, Issue 8, August 2018, Pages 1320-1328
نویسندگان
Sophia Bockey, Philipp Berssenbrügge, Dieter Dirksen, Kai Wermker, Martin Klein, Christoph Runte,