Visualization and Modelling in Dental Implantology (original) (raw)
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BMC Oral Health, 2022
Background Patient- and technology-related parameters influence the successful implementation of virtual implant planning and guided implant surgery. Besides data processing and computer aided design of drill guides as described in Part I, the possibilities and limitations for prosthetic set-up and virtual implant planning are essential (Part II). Methods The following software systems were examined using two different clinical situations for implant therapy: coDiagnostiX™, DentalWings, Canada (CDX); Simplant Pro™, Dentsply, Sweden (SIM); Smop™, Swissmeda, Switzerland (SMP); NobelClinician™, Nobel Biocare, Switzerland (NC); Implant Studio, 3Shape, Denmark (IST). Assessment criteria geared towards interfaces and integrated tools for prosthetic set-up and virtual implant planning. Results A software interface for an individual virtual prosthetic set-up was provided by two systems (CDX, IST), whereas the set-up of standardized teeth was provided by four systems (CDX, SIM, SMP, IST). Al...
BMC Oral Health
Background Virtual implant planning systems integrate (cone beam-) computed tomography data to assess bone quantity and virtual models for the design of the implant-retained prosthesis and drill guides. Five commercially available systems for virtual implant planning were examined regarding the modalities of integration of radiographic data, virtual dental models and the design of drill guides for guided implant surgery. The purpose of this review was to describe the limitations of these available systems regarding the import of imaging data and the design and fabrication of a drill guide. Methods The following software systems were examined regarding the import of imaging data and the export of the virtual implant planning for the design and fabrication of a drill guide with the help of two clinical situations requiring dental implant therapy: coDiagnostiX™, DentalWings, Canada (CDX); Simplant Pro™, Dentsply, Sweden (SIM); Smop™, Swissmeda, Switzerland (SMP); NobelClinician™, Nobel...
Computer-Aided Implant Dentistry
Computer-aided implant dentistry (CAID), the direct translation of preoperative prosthetic planning to the operating theater by means of image guidance technologies, is a novel application of computer aided surgery (CAS). This work deals with the application of a modular software system for computer-aided interventions to CAID. The system is based on AVW-2.5, a software library dedicated to biomedical image processing, and a custom interface for communication with an optical tracker. A specific CAID toolset was also manufactured. We assessed the performance of two different point-based registration algorithms for this specific application of computer-aided preprosthetic surgery on several jaw models. The fiducial localization error (FLE) achievable with our system was found to be 0.7 mm, the fiducial registration error (FRE) accounted for 0.7 mm, and the target registration error TRE (the overall navigation accuracy) was found to be 1.3 mm. Since these results compare well to the resolution of the high-resolution computed tomography scan used we consider the precision of our system to be sufficient. Future enhancements of our system include the implementation of a medical augmented reality display system and the customization of the software package for exploration of other clinical applications of CAS.
Computer-aided navigation in dental implantology: 7 years of clinical experience
Journal of Oral and Maxillofacial Surgery, 2004
Purpose: This long-term study gives a review over 7 years of research, development, and routine clinical application of computer-aided navigation technology in dental implantology. Benefits and disadvantages of up-to-date technologies are discussed. Materials and Methods: In the course of the current advancement, various hardware and software configurations are used. In the initial phase, universally applicable navigation software is adapted for implantology. Since 2001, a special software module for dental implantology is available. Preoperative planning is performed on the basis of prosthetic aspects and requirements. In clinical routine use, patient and drill positions are intraoperatively registered by means of optoelectronic tracking systems; during preclinical tests, electromagnetic trackers are also used. Results: In 7 years (1995 to 2002), 55 patients with 327 dental implants were successfully positioned with computer-aided navigation technology. The mean number of implants per patient was 6 (minimum, 1; maximum, 11). No complications were observed; the preoperative planning could be exactly realized. The average expenditure of time for the preparation of a surgical intervention with navigation decreased from 2 to 3 days in the initial phase to one-half day in clinical routine use with software that is optimized for dental implantology. Conclusions: The use of computer-aided navigation technology can contribute to considerable quality improvement. Preoperative planning is exactly realized and intraoperative safety is increased, because damage to nerves or neighboring teeth can be avoided.
Applied Sciences
Several implant planning software programs are widely use in implant treatments, but there has been no evidence of how different software programs affect the accuracy of static surgical guides used for implant placement. Thus, in this in vitro study, we aimed to compare the accuracy of static surgical guides that were prefabricated from three different software programs, including Implant Studio (Program A) (3Shape®, Copenhagen, Denmark), coDiagnostiX® (Program B) (Straumann®, Basal, Switzerland), and Blue Sky Plan (Program C) (Blue Sky Bio®, LLC, Libertyville, IL, USA). A total of 90 drillable polyurethane models were used as samples in this in vitro study; 30 study models were used to plan the same implant positions and design the surgical guides by each software program (n = 30) and then 90 implants were placed in the models using the surgical guides. The outcomes of the surgical guide accuracy were autonomically measured by the evaluation tool in the coDiagnostiX® (Straumann®, B...
Accuracy of a Navigation System for Computer-Aided Oral Implantology
Lecture Notes in Computer Science, 2000
Placement of endosteal implants is a widespread therapy for re-establishing full functionality in edentulous patients. As a first application of VISIT, a modular software system for research into computeraided surgery developed at our hospital, we have implemented a navigation system for computer-aided implant dentistry (CAID). Besides improved accuracy, benefits of CAID include fast translation of preoperative imaging to the operating theatre and the possibility to insert the implants without having to prepare large mucosa flaps. In this cadaver study, we have measured the overall accuracy of VISIT for inserting four intraforaminal implants in the edentulous mandible. Five cadaver mandibles were embedded into plaster. After high-resolution CT scanning, the mandibles were registered, and the implant channels were drilled by the surgeon. Training implants were inserted into the implant channels, and the plaster was removed. Again, the mandibles underwent CT scanning, and the pre-and postoperative scans were registered relative to each other. A gross registration between pre-and postoperative scans was achieved using surface-or mutual information matching since in some cases the fiducial markers were lost. After transformation to a common coordinate system, the accuracy was assessed by measuring the distance of the implant's center to the cortex of the jawbone. Average accuracy of the navigation system was found to be 0.9 ± 0.7 mm, range {0.0. .. 3.5} mm. We conclude that these results show that CAID is an interesting novel application of computer-aided surgery superior to conventional methods in oral surgery.
Computer Guided Implant Surgery
2020
Prosthetically driven implant surgery has been a subject of great interest to the dental profession. Correct implant positioning forms the basis for the long term success of dental implants to a large extent, such as favourable esthetic and prosthetic outcomes, long-term stability of peri-implant hard and soft tissues and the potential to ensure optimal occlusion . With the development of three dimentional imaging systems and softwaresallowing virtual implant placement have improved the precision of implant procedures.