DENTAL TEAM: Scott Atkin, Creative Dental Laboratory and Dr. Michael Foley, both in Scottsdale, AZ RESTORATIVE PROBLEM: A 79-year-old male patient with an existing PFM full mouth rehab needed a classic...See more A3 shade replacement bridge for teeth #11 through #15. TREATMENT PLAN: A five-unit Crystal Diamond full contour bridge was prescribed. Crystal Diamond was chosen for its excellent translucency and strength, ideal for highly esthetic anterior and posterior metal-free restorations. FABRICATION PROCESS: The case was scanned using a 3Shape D710 scanner and milled using Delcam software on a DentMill 4 milling machine from Digital Dental Lab. After milling, Atkin infiltrated the non-colored zirconia with a combination of Tanaka Zircolor and Zirkonzahn's Color Liquids Prettau® Aquarell shading liquids using green micro-brushes to ensure uniform application of the shading liquids. The technique, based on the instructional Shading Techniques DVD provided by Dental Laboratory Milling Supplies, allows for gradient transitional shading and high translucency. The sintering process must take into account the type of zirconia used and the number of restorations sintered at one time. Crystal Diamond is a high-heat zirconia, and generally the larger the mass and weight--like this five-unit bridge--the longer the heat-soak temperature. The accuracy and programmability of a sintering oven is key to achieving esthetic results for full contour zirconia; the laboratory used the high-temp Sintermax TI700 from Sintering Ovens.com and a custom ramp and heat-soak program specifically for long-span, full contour bridges. Zirkonzahn Zirconia Stains and Glaze were used post-sintering to endow natural tooth characteristics. Except for using different temperatures, the staining and glazing method was the same as those used with other ceramic restorations. Because of the underlying shades and gradients created using pre-sintering shading liquids, very little staining was needed on the final restoration. The patient and the doctor were pleased with the results and the fact that the color of the solid zirconia bridge matches the adjacent PFM restorations. CONTACT: For details, call Dental Laboratory Milling Supplies at 480-948-0466 or visit www.dentalzirconia.com.
DENTAL TEAM: Ken Upright, Oxford Crown & Bridge, LLC and Dr. Shelley Olson, DDS, FICD, Granville Family Dentistry, both in Oxford, NC RESTORATIVE PROBLEM: A female patient fractured the entire facial...See more surface and buccal cusp of tooth #4, which had an old MOD amalgam restoration. Due to a 2mm diastema, the entire mesial aspect of the crown would be exposed in the patient's smile, so shade quality was a foremost concern. TREATMENT PLAN: Because of her positive experiences with the material, Dr. Olson prescribed a Delta Zirconia full contour crown to restore tooth #4. High Translucent Delta Zirconia, used for fabricating full contour restorations, full contour bridges, inlays and onlays offers excellent translucency for these types of restorations. High Strength Delta Zirconia is also available for copings and two- to 14-unit bridges. FABRICATION PROCESS: Dr. Olson performed the appropriate build-up and prepared the tooth per suggested guidelines. Upright sent the articulated model and prescription to Aurident's Delta Milling Center for scanning, design and fabrication. Upon return, Upright checked contour and interproximal and occlusal contacts and used rubber wheels to give the crown a smooth finish. He then blasted the crown lightly to prepare the surface for stain and put it in an ultrasonic for about 10 minutes in a 10% acetone solution. For staining, Upright used the same materials he uses with traditional porcelain, but fired them 20-25°C higher. He prefers to accomplish occlusal anatomy staining and incisal/cusp staining in two separate firings so that they don't run together. Therefore, for the first firing, he concentrated on achieving a realistic, gradient body shade and occlusal anatomy stain. For the next firing cycle, he stained the occlusal and incisal portions, as well as cusp tips and occlusal slopes. Once he was satisfied with the basic shade, he applied a glaze powder used on zirconia-compatible porcelains for a third firing cycle, taking care to experiment with the consistency. If the glaze is too thin, it cracks on the surface; if it's too thick, it can appear milky and distort the shade. Once the crown was seated, the dental team and patient were extremely pleased with the results, particularly the nearly undetectable emergence profile and post-op tissue adaptation. CONTACT: For details, call Aurident at 800-422-7373 or visit www.aurident.com.
DENTAL TEAM: Gyu Cho, CDT, 3D BioCAD Milling Center, Renton, WA and Dr. Ronald Bryant, Seattle RESTORATIVE PROBLEM: The patient presented with severe occlusal wear on his natural teeth; the lower anterior...See more teeth were also very crooked and discolored. The existing crowns also exhibited wear, tissue retraction, dark margins and uneven shades from one crown to the next. Teeth #5, #12 and #14 were missing, requiring implants. TREATMENT PLAN: A full-mouth restoration with 28 units was proposed and had full compliance from the patient. The team opted to use gold-hue abutments to provide a very natural, warm appearance beneath the restorations—full contour 3D BioCAD zirconia for all the molars and 3D BioCAD zirconia copings with layered porcelain for all bicuspids and anterior units. 3D BioCAD was chosen because of the material's esthetics and translucency; the discs are manufactured using isostatically pressed Tosoh zirconia powder under high pressure from all directions, versus uniaxially-pressed zirconia powder which is pressed from only one direction. This provides a denser zirconia that eliminates any micro-voids in the material which can ultimately lead to failure; therefore, it's capable of being used for long-span bridges and other applications not possible with uniaxially-pressed discs. FABRICATION PROCESS: The models were scanned with a 3Shape D800 benchtop scanner and milled on a Roland 5-axis milling unit in 3D BioCAD's in-house milling center. After the units were milled and sintered, Cho used Zirkonzahn's shade liquid to enhance the translucency and natural esthetics of the shade. He then used Ivoclar Vivadent e.max Ceram Glaze Paste to easily achieve a natural-looking glaze. CONTACT: Call 3D BioCAD at 877-878-3348, 425-227-4333, email email@example.com or visit www.3dbiocad.com.
DENTAL TEAM: Cindy Vuong and Dr. Michael DiTolla, both of Glidewell Laboratories, Newport Beach, CA RESTORATIVE PROBLEM: The patient presented with a pre-existing discolored PFM restoration on tooth #8....See more TREATMENT PLAN: Dr. DiTolla prescribed a full contour BruxZir® crown, and decided to take the opportunity to test the translucency of Glidewell Laboratories' new BruxZir™ Shaded material, which offers complete color penetration all the way through the restoration for greater shade consistency. The new material also prevents shade changes or white "show-through" after occlusal adjustment. BruxZir™ Shaded Milling Blanks are available in four base shades that can be stained to match all 16 shades in Vident's VITA Classical Shade Guide range. FABRICATION PROCESS: The case was scanned on the 3Shape D700 and milled with the BruxZir™ Milling System using a BruxZir™ Shaded Milling Blank 200 to achieve the base shade of A2. The pre-shaded blocks were sintered and finished using simple staining and glazing techniques. Vuong was given multiple digital photos showing various shade tabs adjacent to the teeth; the challenge was to match the highly characterized adjacent natural tooth with staining. She used pink and violet BruxZir™ Coloring Liquid to tone down the value, and then used white to mimic the decalcification on the adjacent tooth. The final BruxZir® Shaded crown was cemented using Ceramir® Crown & Bridge luting cement. CONTACT: For more information, call Glidewell Laboratories at 800-854-7256 or visit www.glidewelldental.com.
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Axsys Dental Solutions introduces a 4-axis version of the VersaMILL Dental Machining Center for in-house fabrication of dental prostheses. Equipped with the precision and high performance components...See more of the VersaMILL. 5X 5-axis mill, the VersaMILL4X is self-contained and rigid with far greater options than current four-axis machines. The VersaMILL 4X has wet/dry milling capabilities for material appropriate processing, intelligent four-axis machining that reaches into undercuts and the ability to handle a broad range of indications including custom/hybrid abutments and dental bars. The VersaMILL’s superior construction enable it to machine a wide range of materials including zirconia, titanium, chrome cobalt, resin, wax, glass-ceramics, lithium disilicate and more. The new VersaMILL 4X is also compatible with any open CAD/SCAN solutions providing the flexibility to seamlessly process all imported or modified design files. For more information about the VersaMILL 4X or VersaMILL 5X 5-axis mill contact an Axsys Dental Solutions representative at 1-855-687-7941 or visit our Web-site at: www.axsysdental.com Axsys Dental Solutions 29627 West Tech Drive Wixom, MI 48393 www.axsysdental.com firstname.lastname@example.org 1.855.687.7941
D&S Group, Inc. of Waunakee, WI recently welcomed the experienced Hootman Dental Laboratory of Rockford, IL as its newest laboratory facility. Serving the dental community of northern Illinois and...See more southern Wisconsin since 1927, Hootman Dental Laboratory brings tremendous history, tradition and experience to the D&S Group. The Rockford based laboratory will serve as D&S’s southerly hub for improved presence in southern Wisconsin and northern Illinois. Travis Zick, President of D&S Dental Group, Inc., said “This partnership allows us to expand into a new market and team up with some great people. We’re excited about bringing our philosophy of service, education, and quality craftsmanship—backed by competitive pricing—to the northern Illinois arena.” While Hootman’s experience and locale will improve D&S’s Midwestern presence, D&S’s command of the newest and most efficient dental technologies will boost the Illinois lab’s technological capacities and product selection. Digital impression scans, digital design, CAD/CAM milling services, immediate access to the latest materials and products, and additional technological resources will now be offered on Hootman’s list of services. “The collaboration will both enhance and expand upon our current product offerings to meet the needs and exceed the expectations of both existing and potential clients,” said Debra Swenson, President of Hootman Dental Laboratory. “With new state-of-the-art technology, affordable pricing, additional continuing education opportunities, and an expanded well of expertise and knowledge to draw from, Hootman will continue to be the best laboratory choice for area dental professionals.” For more about D&S Group, Inc., including products and services offered, visit dnsdental.com.
The Perfactory 4 Digital Dental Printer (DDP4) from ZAHN DENTAL is a low-cost, easy-to-maintain, user-friendly rapid manufacturing system. Using Direct Light Projection technology from Texas Instruments®,...See more the DDP4 quickly produces finely detailed crowns, bridges and partials in wax-based polymer as well as glass-filled composites. Using a built-in ethernet interface, the Perfactory can easily connect to a PC workstation or be integrated into a network. It has an embedded PC, allowing it to work independently from the pre-processing workstation. The Perfactory Software Suite easily imports .stl data and also makes it possible to remotely monitor the system from any computer on the network. 800-496-9500 www.zahndental.com
Manufactured using high quality powder with high translucency, TALLADIUM's yttria-stabilized zirconia is isostatically cold pressed and partially sintered, producing a distortion-free, excellent quality...See more fit for single units and frameworks up to 14 units. Ideal for temporaries and try-ins, the company's PMMA discs are formulated from a special blend of polymers that burn out cleanly, making them ideal for the lost wax technique. Talladium also offers wax discs formulated by its experienced technicians; when machined, the copings and frameworks are smoothly cut away for excellent accuracy. 800-221-6449, 661-295-0900 email@example.com www.talladium.com
Pearson Dental Supply introduces CAD/CAM wax discs, CAD/CAM PMMA discs, zirconia framework discs, zirconia full contour discs and framework blocks in all sizes to fit most popular milling machines. The...See more company now also offers special coloring liquids for zirconia and full contour crowns. 818-336-8256 www.pearsonlab.com
EXOCAD is the leading OEM dental CAD/CAM software with over 5,000 licenses deployed worldwide. Its reseller/partners are companies that integrate their own 3D scanners, milling centers, mills and materials into branded solutions...
Seoul, Korea-based MEDIT spent three years working with Solutionix, its sister company that manufactures high-end industrial scanners, to develop this compact, open-architecture scanner that uses white-light scanning and...