Accuracy and surgical feasibility of a CBCT-based stereolithographic surgical guide aiding autotransplantation of teeth: in vitro validation
| Autor: | E. Dhoore, Guy Willems, Veerle Pattijn, Maryam Shahbazian, C. Van Lierde, Jan Wyatt, Frans Vinckier, Reinhilde Jacobs |
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| Rok vydání: | 2010 |
| Předmět: |
Cone beam computed tomography
animal structures Computer science business.industry Replica medicine.medical_treatment Tooth transplantation Mandible Dentistry Autotransplantation law.invention Transplantation stomatognathic diseases stomatognathic system law medicine business General Dentistry Stereolithography |
| Zdroj: | Journal of Oral Rehabilitation. 37:854-859 |
| ISSN: | 0305-182X |
| DOI: | 10.1111/j.1365-2842.2010.02107.x |
| Popis: | The aims of this study were to determine the accuracy of a 3D computer model and stereolithographic (STL) replica when compared to the real tooth and to develop a cone beam computed tomography (CBCT)-based planning technique including surgical guide fabrication. A STL surgical guide and a tooth replica were fabricated using SimPlant Pro 12.1. To validate this process, tooth segmentation and replica design were prepared for comparison to an optical scan of the corresponding tooth. For surgical intervention, a dry dentate mandible was scanned using a Scanora CBCT and the donor tooth was segmented. The donor tooth was repositioned, and two guides were designed. These tooth replica and guides were used in socket preparation of the dry mandible. The 3D computer model of the segmented teeth and related STL models showed satisfactory results with an acceptable accuracy. The surfaces were within 0·25mm distance, but in some areas up to 2·5mm deviation were seen. The results showed that 79% of the points was between 0·25 and -0·25mm, 3% was overestimated (>0·25mm) and 18% was underestimated ( |
| Databáze: | OpenAIRE |
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