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ABSTRACT: The traditional technique for creating a CAD/CAM surgical template with a NobelGuide protocol is to fabricate a radiographic template that depicts the planned tooth position first. Multiple appointments are needed for the fabrication of the radiographic template with Cone Beam Computed Tomography (CBCT) before the surgical procedure can start. An alternative technique is described for fabricating a radiographic template at the initial examination appointment and capturing the necessary DICOM data to plan and fabricate a CAD/CAM surgical template in a 1-appointment protocol, thereby saving the patient and clinician time and reducing the need for multiple appointments.
The Journal of prosthetic dentistry 12/2011; 106(6):346-9. · 1.22 Impact Factor
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ABSTRACT: Since the introduction of milled zirconia copings for ceramic crowns, a variety of techniques have been introduced to reduce the incidence of chipping or fracturing of the porcelain veneer. These include methods of improving the interface between the coping and the veneer, reducing thermal incompatibility between the two, and optimizing the coping design to minimize tensile loading on the porcelain. Another method of reducing porcelain chipping and fracture is to limit or eliminate the porcelain coverage of zirconia copings and frameworks. Even though patients often demand tooth colored or nonmetallic restorations, they tend to be less concerned with the optimal esthetics of their posterior teeth. This article describes 4 representative clinical situations where efforts were made to minimize or eliminate porcelain coverage on posterior zirconia crowns and a fixed dental prosthesis, while still achieving acceptable, but not optimal, esthetics.
The Journal of prosthetic dentistry 09/2011; 106(3):145-52. · 1.22 Impact Factor
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ABSTRACT: An implant verification cast is designed to provide an accurate representation of dental implant positions extraorally. It can be used by the laboratory as a trusted cast to create a passively fitting framework and by the clinician to verify framework fit prior to intraoral trial. This article discusses the treatment philosophy behind this specific cast and reviews applications, fabrication techniques and benefits of the verification cast compared to the conventional technique.
Journal of the California Dental Association 08/2010; 38(8):571-81.
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ABSTRACT: Generically milled zirconia copings for all-ceramic crowns may not provide optimal thickness and form for the coping or the porcelain veneer. This article describes the customization of milled zirconia copings to provide even and controlled porcelain thickness with the aim of decreasing cohesive porcelain fracture and other failures. A full-contour waxing and cut back in conjunction with a dual-scan technique was used to ensure adequate coping thickness, adequate, even porcelain thickness, and butt joints at the porcelain-to-coping junctions.
Journal of Prosthetic Dentistry 04/2008; 99(3):169-73. · 1.32 Impact Factor
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ABSTRACT: Fabricating a crown beneath an existing removable partial denture is technique sensitive, difficult, and time consuming. A procedure is described using CAD/CAM technology to fabricate an all-ceramic crown under an existing removable partial denture that is simple, esthetic, and convenient for the patient and the clinician.
Journal of Prosthetic Dentistry 01/2008; 98(6):478-82. · 1.32 Impact Factor
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Journal of Prosthetic Dentistry 12/2007; 98(5):416-7. · 1.32 Impact Factor
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Christopher B Marchack
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ABSTRACT: The treatment planning, placement, and restoration of dental implants for the partially edentulous patient can be challenging. Anatomical limitations can make implant location difficult to determine. The use of CT scans and surgical planning software to produce a CAD/CAM surgical template, as well as the use of a flapless surgical technique, can make implant placement more predictable, safer, and easier for patients. The article describes a computer-guided surgical technique for the partially edentulous patient, with a restoration fabricated prior to implant placement, for immediate loading.
Journal of Prosthetic Dentistry 07/2007; 97(6):389-94. · 1.32 Impact Factor
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Christopher B Marchack
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ABSTRACT: Dental implants have had a major impact on the treatment of edentulous patients. Fixed complete dentures have allowed removable complete dentures to be replaced with fixed prostheses. A new treatment modality using immediately loaded implants placed with a CAD/CAM surgical template using a flapless surgical technique, then loaded with a prefabricated restorative prosthesis, is presented. This report describes the Teeth-in-an-Hour (Nobel Biocare, Yorba Linda, Calif) treatment provided for a patient.
Journal of Prosthetic Dentistry 02/2005; 93(1):8-12. · 1.32 Impact Factor
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ABSTRACT: Restoring the edentulous patient with an implant-supported fixed complete denture prosthesis is a challenging procedure. The patient's occlusal vertical dimension, centric relation position, esthetics, and phonetics should be maintained throughout the restorative process, while the patient is traditionally wearing a removable prosthesis. This article presents an alternative treatment philosophy that addresses these concerns and guides the restorative process using a fixed provisional restoration made from the patient's removable complete dentures.
Journal of Prosthetic Dentistry 07/2004; 91(6):525-31. · 1.32 Impact Factor
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ABSTRACT: A new approach to implant dentistry for the fully edentulous arch is presented. Using a conventional computer tomography scan and specialized surgical planning software, a fixed final prosthesis is fabricated before the surgical procedure so the prosthesis may be delivered immediately after the implants are placed. Initial prospective studies of 10 patients with observation times of up to 24 months have shown all patients to have a functional prostheses. Long-term studies are being performed to validate this new procedure.
Journal of the California Dental Association 01/2004; 31(12):925-9.
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Christopher B Marchack
Journal of the California Dental Association 05/2003; 31(4):339-40.
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Christopher B Marchack
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ABSTRACT: In the world of scientific and professional presentations, the digital age has made an immense transformation. With these advances, digital media can be used to assist and enhance communication without losing the message. This article discusses guidelines for the presenter of scientific presentations with digital media.
Journal of Prosthetic Dentistry 01/2003; 88(6):649-53. · 1.32 Impact Factor
