Marginal and internal fit of 3D printed resin graft substitutes mimicking alveolar ridge augmentation: An in vitro pilot study
| Autor: | Celine C Stoop, W. E. R. Berkhout, K. Chatzivasileiou, D. Wismeijer |
|---|---|
| Přispěvatelé: | Oral Implantology, Oral Radiology |
| Rok vydání: | 2018 |
| Předmět: |
3d printed
Cone beam computed tomography Materials science Bone Regeneration Science Alveolar Bone Loss Pilot Projects In Vitro Techniques 03 medical and health sciences 0302 clinical medicine Alveolar ridge Humans Statistical analysis Bone regeneration Clinical treatment Dental alveolus Multidisciplinary Bone Transplantation 030206 dentistry Alveolar Ridge Augmentation Cone-Beam Computed Tomography Dental Prosthesis Design 030220 oncology & carcinogenesis Printing Three-Dimensional Medicine Computer-Aided Design Biomedical engineering |
| Zdroj: | PLoS ONE, Vol 14, Iss 4, p e0215092 (2019) PLoS ONE, 14(4):e0215092. Public Library of Science Stoop, C C, Chatzivasileiou, K, Berkhout, W E R & Wismeijer, D 2019, ' Marginal and internal fit of 3D printed resin graft substitutes mimicking alveolar ridge augmentation : An in vitro pilot study ', PLoS ONE, vol. 14, no. 4, e0215092 . https://doi.org/10.1371/journal.pone.0215092 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0215092 |
| Popis: | Recent improvements in additive manufacturing technologies may facilitate the use of customized 3D printed grafts for horizontal and vertical augmentation of the atrophic alveolar ridge. The accurate fit of such grafts could reduce the clinical treatment time and contribute optimal bone regeneration. The aim of this in vitro study was to evaluate the marginal and internal fit of 3D printed resin grafts as they could be used for alveolar ridge augmentation. Alveolar ridge morphologic data were derived from the Cone Beam Computed Tomography (CBCT) scans of six patients with alveolar bone defects. These data were transferred to a segmentation program to produce virtual 3D reconstructions of the alveolar ridge models. Using a Computer Aided Design (CAD) program, the alveolar bone defects were defined and customized grafts were designed and both the defects as well as the grafts generated (CAM) as 3D projects. These projects were imported into a 3D printer and were manufactured in resin. Hereafter, the grafts were fitted to the defect sites of the corresponding models and new CBCT scans were performed. Based on these scans, measurements were made at the marginal and internal part of the fitted grafts to evaluate the marginal and internal fit, respectively. The statistical analysis revealed that the mean marginal fit was significantly better (P < 0.05) than the mean internal fit. The fit of the grafts was dependent on the shape and on the size of the grafts. Specifically, the total void surface between the fitted graft and the corresponding defect site was significantly larger in the large-defect grafts than the small-defect grafts (P < 0.05). Within the limitations of the study, it could be demonstrated that it is possible to fabricate 3D printed resin grafts with acceptable fit in customized shapes, when combining CBCT scans and computer aided design and 3D printing techniques. |
| Databáze: | OpenAIRE |
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