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 22nd annual meeting of the European Association of Osseointegration (EAO), October 17-19, 2013, served as the platform for Nobel Biocare to launch several new innovative solutions, each focused on...See more improving patient treatment outcomes while increasing efficiency for both clinicians and laboratories. At the Convention Center Dublin, Ireland, Nobel Biocare showcased products and services which further highlight the company's commitment to leading innovation. All of the solutions presented will play important roles in Nobel Biocare's upcoming new seamless and fully integrated digital treatment workflow. New NobelProcera® 2G System gives laboratories the opportunity to build their business Reducing the time required for scanning by up to 50%, and with no compromise on precision, the new NobelProcera 2G System now offers dental labs multiple benefits at a level that can help them to grow their business. From single teeth to complex edentulous cases, the NobelProcera 2G System's increased automation capabilities and simplified workflows reduce the need for user interaction to a bare minimum, allowing dental technicians to focus on other tasks while scanning takes place, increasing the productivity of the lab. The NobelProcera 2G System can also now help labs to become more valued treatment partners. The new 2G scanner's solid model scanning capability allows for the production of highly precise digitized model surface information. This can inform the clinician's diagnostic process, involving the lab at an early stage in the treatment program, providing the opportunity to discuss restorative options for an optimum esthetic outcome. Nobel Biocare is running an exchange program which makes it easy to upgrade to the NobelProcera 2G System. Interested customers should contact their local Nobel Biocare representative today. New 'open access' gives 3Shape® customers the outstanding quality of NobelProcera® Abutments The industry-leading customized abutments from NobelProcera are now available for users of the 3Shape Dental System. After integrating with NobelProcera, 3Shape users can access the extensive global production network of NobelProcera to produce high-quality NobelProcera Abutments in zirconia and titanium for both Nobel Biocare and other major implant systems. Interested 3Shape users should contact their local Nobel Biocare representative. Availability may depend on the version in use and which 3Shape Partner has provided the Dental System. Learn more about the NobelProcera 2G System and open access at: nobelbiocare.com/nobelprocera Fully integrated digital workflow moves a step closer with NobelClinician™ Software and OsseoCare™ Pro iPad®-powered drill unit now connected The digital link that has now been established between the NobelClinician Software and the iPad-powered OsseoCare Pro drill unit will support optimal patient treatment, treatment file management and greater efficiency. Thanks to the new connection, users of the NobelClinician Software can now digitally transfer a surgery planned in NobelClinician to the intelligent OsseoCare Pro drill unit via Nobel Biocare's cloud-based network NobelConnect. The chosen implants in the correct positions and with the required drilling protocol are transferred to the OsseoCare Pro drill unit at little more than the press of a button. A patient-specific post-surgery report is now also sent straight from the OsseoCare Pro back to NobelClinician once the procedure is complete, significantly increasing the efficiency of implant placement. This new connection is an important link within Nobel Biocare's fully integrated digital treatment workflow which will become fully connected in 2014. Once in place, the full digital workflow will significantly increase predictability, efficiency and the quality of patient care at every step of the treatment process. Learn more about NobelClinician Software and OsseoCare Pro at: nobelbiocare.com/nobelclinician or nobelbiocare.com/osseocare
Atlantic Precious Metal Refining (Atlantic), a Pittsburgh-based precious metal refinery serving dental professionals worldwide, is pleased to announce the launch of Strategy Milling, a revolutionary state-of-the-art...See more milling center providing dental professionals convenient, affordable, and never before available milled full contour gold crowns and bridges. Powered by Atlantic, this revolutionary milling center saves the dental professional time and money, provides superior restorations with the unsurpassed accuracy of digital, and eliminates unwanted and expensive onsite alloy inventory. "We believe that no posterior restoration compares to a noble gold restoration," remarked Scott Mappin, VP of Operations at Strategy Milling. "After years of research and development, we can now fill a huge gap in digital dentistry by providing milling capabilities dental professionals won't find anywhere else. Strategy Milling allows us to provide stunningly accurate gold restorations with outstanding marginal integrity requiring minimal finishing and polishing, all at a very competitive price." By utilizing Strategy Milling's services, dental professionals will save a substantial amount of time while reaping several economic advantages. There is no longer a need to stock unwanted and expensive alloy onsite as customers are billed for only the alloy used as each gold crown is milled. Moreover, bench time formerly dedicated to the many time consuming tasks of preparing gold restorations (i.e. waxing, spruing, investing, burnout, casting, divesting, etc.) can be spent on other tasks. All milled restoration cases received by Strategy Milling are returned to the customer quickly and efficiently within a 24-hour timeframe. Specifically, any order received by 12:00 p.m. Eastern time during regular business hours Monday through Friday will ship the following business day. Moreover, the delivered restorations require minimal finishing and polishing resulting in additional time savings. For more information about Strategy Milling, please call Scott Mappin directly at 802-999-5577 or visit www.strategymilling.com For more information about Atlantic, please call 800-289-9293 or visit www.apmr.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
Steve Braykovich · January 20 at 1:57 am
How long does it take your mill to machine a (insert restoration type here)? This seems to be an area that the digital dental labs and milling centers are most concerned with and can likely be a...See more key criterion in their purchase of a milling machine. Of course machine cycle time is important but it is in reality, not a true gage of a milling machines production and effect on overall throughput and profitability. While the VersaMILL is capable of producing single unit zirconia restoration in as little as 6 minutes and titanium implant abutments in less than 20 minutes, our answer to this questions is typically: “How long do you want it to take”? This may, on the surface, appear to be a flippant answer but in reality we are quite serious. Often time sacrifices are made and indeed even tolerated in the pursuit of fast cycle times. Sacrifices that include: Decreased Cutting Tool Life Increased Manual Bench time Decreased Accuracy Inferior Surface Finish (i.e. Occlusal Surfaces) Poor Feature Definition (i.e. Margin Definition) Increased Design Time Does it make sense to be able to pull a restoration off of the milling machine in 4 minutes only to spend another 10 minutes on the bench to clean it up OR determine it is unacceptable thereby having to re-make it OR spend additional time designing the restoration to avoid machine issues OR spend additional money on expensive diamond tooling due to improper feed/speed rates, OR to sacrifice finish or detail, etc.? The achievement of high quality, in terms of work-piece dimensional accuracy, surface finish, production rate, wear on the cutting tools and economy of machining in terms of cost saving are the main challenges of modern dental manufacturing. Machine stability in terms of vibration dampening characteristics of the axes and spindle drive systems, spindle run-out, machine positional accuracy, cutting tool materials and geometry, machining parameters such as speed, feed, depth of cut and CAM programming strategies all play a factor in enabling you to reach your throughput and profitability objectives. We at Axsys not only have the PRODUCTS, we even more importantly, have the KNOWLEDGE and EXPERIENCE to maximize their effectiveness in pursuit of your goals and objectives. With our products we can provide you with the throughput you need to be competeitve while enabling you to ship superior product to your customers while yeilding high, predictable profits. You may even find that with the VersaMILL and our expertise, an extremely quick return on investment can be realized in zirconia restoration alone; thanks to the tooling cost savings associated with our extremely long tool life (in many cases over 200 units per tool) from tooling that costs a fraction of what competitive solutions offer. Contact Us today to learn more about the Axsys Advantage so we can put our experience to work for you.
Steve Braykovich · January 20 at 1:41 am
There are many interrelated factors that affect a DMC’s (Dental Milling Center) reliability, speed and accuracy, the three most important of which include the spindle drive system, machine control...See more system and axis drive system. The spindle drive system provides power to the cutting tool to remove material. The control (or machine operating system) is the brain of the DMC and coordinates machine motion. The axis drive system determines how smooth the motion of the DMC is and how it translate into parts that are consistently accurate with the required surface finish quality. SPINDLE DRIVE The amount of force and wear and tear that a DMC’s spindle must endure means the design of the spindle and the quality of the parts buried within the spindle is vital to the DMC’s spindle’s performance and its lifespan. Quality components not only determine longevity of the spindle, they determine how the spindle handles speed, torque and vibration. Key considerations include; style (belt or integral motor), bearings (type, lubrication and cooling), motor, shaft and housing Our VersaMILL addresses these considerations by utilizing a rigid, high quality and reliable precision spindle system that is also economical. The VersaMILL's high speed air cooled spindle can operate at high rpm while producing minimal run-out at the cutting tool edge allowing for long tool life and outstanding surface finishes; without the need for expensive tooling systems such as shrink-fit, polygonal clamping, micro collets and others. AXIS DRIVEThe quality of the axis drive system is also a function of the construction of the frame and the axes way system. This is the key area in the construction of a machine tool as it determines rigidity, vibration damping capacity, and resistance to side thrust. It's the balance between these three critical areas (power, speed, accuracy) that you must evaluate against your current and future needs to get the best buy for your money. Additionally the type of axis drive motor (servo or stepper) and motor control system (open-loop or closed-loop) is important to assure positional accuracy, repeatability, smoothness of motion, vibration, tool wear, quality of surface finish and quietness of operation. The VersaMILL’s closed-loop servo motor system is the system of choice in a quality DMC as it avoids the positional/repeatability accuracy, noise and maintenance issues associated with open-loop systems that rely on stepper motors to drive the machine axes. Most dental milling systems available today lack the rigidity of construction and fixturing, quality components, speed, versatility and size to effectively produce the various restoration types from the soft and hard materials that are required of them to maintain or grow their business. The VersaMILL 5X eliminates these issues by providing a single, cost-effective, compact and easy-to-use open platform high precision dental milling machine constructed from heavy duty, reliable components utilized in heavy idustrial applications that can be implemented in any lab environment. Take a look at the VersaMILL 5X for your next purchase of a dental machining center; it may well be the only machine you will ever need.