Computer-aided design and fabrication of dental restorations

Strub, Jörg Rudolf; Rekow, E. Dianne; Witkowski, S.

doi:10.14219/jada.archive.2006.0389

Cited by 298 publications

(187 citation statements)

References 4 publications

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“…85 Although the CAD-CAM systems described above are already well established in the dental market, they present a major drawback related to the great waste of material upon machining. The waste corresponds to approximately 90% of the prefabricated block for a typical restoration 86 and leftovers from these dental restorations are not reusable. Therefore, new technologies have been developed to overcome this problem.…”

Section: Novel Processing Technologiesmentioning

confidence: 99%

“…86,87,88,89,90 These techniques are: 1) Selective Laser Sintering or Melting, 2) Direct 3D Printing and 3) Stereolithography.…”

Section: Novel Processing Technologiesmentioning

confidence: 99%

“…In this technique, the laser beam sinters thin layers of a ceramic from a container filled with powder to create a single coping or framework, in which each layer represents a cross section of the CAD model. 86 Direct 3D Printing is similar to a traditional inkjet printer, performing the direct printing of a ceramic suspension, allowing the generation of dense green bodies with high resolution, and producing complex shapes. 90,91 Stereolithography is frequently used nowadays, and has already evolved enough to allow production of more complex ceramic pieces, whereas the previously mentioned techniques are in the early development stage for dental applications.…”

Section: Novel Processing Technologiesmentioning

confidence: 99%

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Dental ceramics: a review of new materials and processing methods

et al. 2017

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The evolution of computerized systems for the production of dental restorations associated to the development of novel microstructures for ceramic materials has caused an important change in the clinical workflow for dentists and technicians, as well as in the treatment options offered to patients. New microstructures have also been developed by the industry in order to offer ceramic and composite materials with optimized properties, i.e., good mechanical properties, appropriate wear behavior and acceptable aesthetic characteristics. The objective of this literature review is to discuss the main advantages and disadvantages of the new ceramic systems and processing methods. The manuscript is divided in five parts: I) monolithic zirconia restorations; II) multilayered dental prostheses; III) new glass-ceramics; IV) polymer infiltrated ceramics; and V) novel processing technologies. Dental ceramics and processing technologies have evolved significantly in the past ten years, with most of the evolution being related to new microstructures and CAD-CAM methods. In addition, a trend towards the use of monolithic restorations has changed the way clinicians produce all-ceramic dental prostheses, since the more aesthetic multilayered restorations unfortunately are more prone to chipping or delamination. Composite materials processed via CAD-CAM have become an interesting option, as they have intermediate properties between ceramics and polymers and are more easily milled and polished.

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Section: Novel Processing Technologiesmentioning

confidence: 99%

“…86,87,88,89,90 These techniques are: 1) Selective Laser Sintering or Melting, 2) Direct 3D Printing and 3) Stereolithography.…”

Section: Novel Processing Technologiesmentioning

confidence: 99%

Section: Novel Processing Technologiesmentioning

confidence: 99%

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Dental ceramics: a review of new materials and processing methods

et al. 2017

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“…The recent introduction of digital dentistry based on industrial computer-aided design and computeraided manufacturing (CAD/CAM) systems promises to produce prostheses more easily and quickly than conventional methods, and is also able to mass-produce various types of prostheses 1,2) . In particular, development of intraoral scanners has changed the paradigm of impression procedures from impression materials and gypsum-based indirect impression techniques to digital dentistry based chair-side impression techniques [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the accuracy and precision of four intraoral scanners with 70% reduced inlay and four-unit bridge models of international standard

et al. 2017

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The aims of this study were to evaluate the feasibility of 70% reduced inlay and 4-unit bridge models of International Standard (ISO 12836) assessing the accuracy of laboratory scanners to measure the accuracy of intraoral scanner. Four intraoral scanners (CS3500, Trios, Omnicam, and Bluecam) and one laboratory scanner (Ceramill MAP400) were used in this study. The height, depth, length, and angle of the models were measured from thirty scanned stereolithography (STL) images. There were no statistically significant mean deviations in distance accuracy and precision values of scanned images, except the angulation values of the inlay and 4-unit bridge models. The relative errors of inlay model and 4-unit bridge models quantifying the accuracy and precision of obtained mean deviations were less than 0.023 and 0.021, respectively. Thus, inlay and 4-unit bridge models suggested by this study is expected to be feasible tools for testing intraoral scanners.

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“…[7][8][9] Son zamanlarda, bilgisayar destekli tasarım/bilgisayar destekli üretim (CAD/CAM) in tanıtımıyla sinterleme ve millemeden sonra zirkonlarda meydana gelen büzülme gibi dezavantajların üstesinden gelinmiĢ ve zirkonyum restorasyonların uyumunu geliĢtirmeye yardımcı olmuĢtur. 10 Bilgisayar destekli tasarım/bilgisayar destekli üretim (CAD/CAM) sistemleri 1980'li yılların baĢlarında diĢ hekimliğinde kullanılmaya baĢlanmıĢtır. Son yıllarda hızla önem kazanmıĢ ve popüler hale gelmiĢtir.…”

Section: Gġrġġunclassified