The use of stereolithography as a diagnostic tool in implantology
Keywords:
Dental implantation endosseous, TrendsAbstract
This article reports on the use of Stereolithography, a Rapid Prototyping Technique, for constructing 3D models of patients subjected to prosthetic rehabilitation through implant-supported prostheses. Epoxy resin 3D models were crafted through a CAD/CAM system (from images obtained by computed tomography) to be used for treatment planning and the construction of metallic individualized surgical guides. A 40-year old patient, totally edentulous on the maxilla, was subjected to placement of 8 implants positioned according to the subperiostal surgical guide crafted on the stereolithography models. Thanks to the precision of this surgical guide, implants were inserted in the planned positions, and the surgical time was greatly reduced. After implant insertion, the patient received a fixed, complete prosthesis of the protocol type.
References
Branemark PI, Zarb G, Albrektsson T. Tissueintegrated prostheses: osseointegration in clinical dentistry. Chicago: Quintessence, 1985. p.11-76.
Gaggl A, Schultes G, Santler G, Karcher H. Treatment planning for sinus lift augmentations through use of 3-dimensional milled models derived from computed tomography scans: a report of 3 cases. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998; 86:388-92.
Iplikcioglu H, Akca K, Cehreli MC. The use of computerized tomography for diagnosis and treatment planning in implant dentistry. J Oral Implantol. 2002; 28:29-36.
Cucchiara R, Franchini F, Lamma A, Lamma E, Sansoni T, Sarti E. Enhancing implant surgery planning via computerized image processing. Int J Comput Dent. 2001; 419-24.
Chea CM, Hua CK, Tan KH, Teo CK. Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 1: design and fabrication of prostheses replicas. Int J Prosthodont. 2003; 16:435-41.
Çehreli MC, Çalis AC, Sahin S. A dual-purpose guide for optimum placement of dental implants. J Prosthet Dent. 2002; 88: 640-3.
Kopp KC, Koslow AH, Abdo OS. Predictable implant placement with a diagnostic/surgical template and advanced radiographic imaging. J Prosthet Dent. 2003; 89: 611-5.
Steenberghe DV, Malevez C, Cleynenbreugel JV, Serhal CB, Dhoore E, Schutyser F, et al. Accuracy of drilling guides for transfer from threedimensional CT-based planning to placement of zygoma implants in human cadavers. Clin Oral Implants Res. 2003; 14: 131-6.
Injection Molding. Info, Help and Resources. Stereolitography. Disponível em 10.Introduction of Laminated Object Manufacturing Process. Disponível em <http://www.garpa.org/case-2000/ch/introductionoflom.pdf>
Laminated Object Manufacturing, LOM, Helisys. Disponível em <http://www.selecteng.com/lamin.htm>12.RP&T Techniques – Laminated Object Manufacture. Disponível em <http://www.warwick.ac.uk/atc/rpt/Techniques/ lom.htm>
Stereolitography. Disponível em http:// www.karldenton.com/Stereolithography.htm
Worldwide Guide to Rapid Prototyping. Selective Laser Sintering. Disponível em http:// home.att.net/~castleislands/sls.htm
Materialise Software: Mimics: MedCAD. MedCAD Module. Disponível em http://w w w. m a t e r i a l i s e . c o m / m i m i c s /medcad_ENG.html
Sarment PS, Al-Shammari K, Kazor CE. Stereolithographic surgical templates for placement of dental implants in complex cases.Int J Periodontics Restorative Dent. 2003; 23: 287-95.
Berry E, Brown JM, Craven CM, Efford ND, Radjenovic A, Smith A. Preliminary experience with medical applications of rapid prototyping by selective laser sintering. Med Eng Phys. 1997; 19: 90-6.
Bouyssie JF, Bouyssie S, Sharrock P, Duran D. Stereolithographic models derived from x-ray computed tomography. Reproduction accuracy. Surg Radiol Anat. 1997; 19:193-9.
Coward TJ, Watson RM, Wilkinson IC. Fabrication of a wax ear by rapid-process modeling using stereolithography. Int J Prosthodont. 1999; 12:20-7.
Fortin T, Bosson L, Coudert JP, Isidori M. Reliability of preoperative planning of an imageguided system for oral implant placement based on 3-dimensional images: An in vivo study. Int J Oral Maxillofac Implants 2003; 18:886-93.
Gateno J, Xia J, Teichgraeber JF,Rosen A. A new model for the creation of a computerized composite skull model. J Oral Maxillofac Surg. 2003; 6:222-7.
Hoffmann J, Schwaderer E, Dammann F. The use of hybrid stereolithographic models for the planning of complex craniofacial procedures. Biomed Tech. 2002; 47 Suppl 1Pt1:278-81.
Morris CL, Barber RF, Day R. Orofacial prosthesis design and fabrication using stereolithography. Aust Dent J. 2000; 45:250–3.
Sammartino G, Della Valle A, Marenzi G, Gerbino S, Martorelli M, di Lauro AE et al. Stereolithography in oral implantology: a comparison of surgical guides. Implant Dent. 2004;13:133-9.
Sarment DP, Sukovic P, Clinthorne N. Accuracy of implant placement with a stereolithographic surgical guide. Int J Oral Maxillofac Implants 2003; 18:571-7.
Tardieu PB, Vrielinck L, Escolano E. Computerassisted implant placement. A case report: treatment of the mandible. Int J Oral Maxillofac Implants 2003; 18:599-604.
Tomotake Y, Ishida O, Kanitani H, Ichikawa T. Immediate implant–supported oral rehabilitation using a photocurable plastic skull model and laser welding. A technical note on the screw-retained type: Part 1. Int J Prosthodont. 2002; 15:303-6.
