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For years, porcelain was the material of choice for denture teeth because of its ability to replicate the appearance of natural dentition. But as we entered the 1990s, acrylic denture teeth had replaced...See more porcelain as the industry standard; in fact, the use of porcelain teeth had dropped 50% during the previous decade. Acrylic teeth offered several functional advantages: they were kinder to opposing dentition with less trauma to the bone and offered easier occlusal adjustment. However, earlier materials tended to craze and check and weren’t as esthetic as the tried-and-true porcelain. Over time, cross-linking techniques were refined, resulting in more durable acrylic teeth. Improved opalescence, translucency and shade consistency—especially among the new generation of composite teeth—further contributed to the growing use of acrylic teeth. Visit LMTmag.com tomorrow for another LMT Memorable Moment.
Renfert's Cim Ozyurt explains the R&D behind lay:art style brushes, designed to fulfill all the requirements of optimal porcelain buildup.
As the enormous marketing potential of laminate veneers became evident, patent infringement cases began. While DenMat held various material patents, two other companies—Jaff Investment Co., owned...See more by brothers Al and Frank Faunce, and Deneer, Inc., owned by Tom Greggs—held patents on the fabrication process. However, many laboratories were still producing laminates on their own and this fueled a number of lawsuits and out-of-court settlements. In 1992, the issue reared its head again when laboratories around the country received letters from Yukiyo Ltd.—which had purchased an existing patent for the refractory method of fabricating porcelain veneers—saying they were infringing on the patent. Nearly five years later, the patent was declared invalid. Visit LMTmag.com tomorrow for another LMT Memorable Moment.
In the 1970s, a buzzer on a porcelain furnace was considered a luxury gadget. Back then, many insisted that a true ceramist should be monitoring the progress of the bake by eye, not depending on a buzzer...See more to tell you when the case is ready.However, by the end of 1984, an LMT survey found that two-thirds of porcelain furnaces used in dental laboratories were either partially or fully automatic. LMT then observed, “modern technology has brought us computerized furnaces with features not even thought of just a few years ago, but the prices for these units are considerable.” Many small labs in particular felt these furnaces—like today’s CAD/CAM systems—were beyond their financial means. Visit LMTmag.com tomorrow for another LMT Memorable Moment.
In April 2012, Noritake Dental Supply Co., Ltd. integrated with Kuraray Medical Inc. to form Kuraray Noritake Dental Inc.; the U.S. representative of Noritake products is now Kuraray America, Inc. Both...See more headquartered in Japan, Kuraray Medical is renowned for its dental adhesives and cements--including the Panavia, Clearfil and Majesty lines--while Noritake Dental Supply is distinguished for its high quality ceramic technology, having introduced its dental ceramic line in 1987. "Historically, Kuraray has been known as a scientific- and process-driven company and Noritake is celebrated for its artistry. With each company drawing on the strengths of their different backgrounds and cultures, they are now an integrated force that's evaluating, identifying and addressing market needs as one entity," says Larry Zeno, Senior Sales Manager, Kuraray America. The established laboratory product line includes the Noritake EX-3 porcelain line; Cerabien ZR Porcelain for zirconia; and CZR PRESS, a pressable ingot for zirconia. Since the integration, the company has introduced Katana Zirconia ML, a highly translucent multilayered zirconia disc with four gradations of color that offers the look of layered porcelain in one material. New products for the clinical market include Clearfil Majesty ES Flow resin composite and Teethmate Desensitizer. For a step-by-step look at the use of some the company’s products, click here.
Tim Tyndall · February 15, 2012
For the last three years, I've been involved in titanium research and development with Precision Milling Center in West Valley City, UT, and read with interest Luke Kahng's recent article on titanium (How...See more to Fabricate an Esthetic Porcelain to Titanium Restoration, LMT November/December 2011, Click here to Read). The piece is well written and supported with excellent photography. However, I'd like to add some technique recommendations that are critical to the success of processing porcelain-fused-to-titanium restorations: When designing the framework, follow your manufacturer's instructions regarding minimal thickness, usually .4mm for anteriors and .6mm for posteriors. Metal preparations should always be done with SHP burs designed just for titanium. As Khang says, always cut in one direction and also use a maximum speed of 15,000rpm. Never use more than 2-2.5 bars or 30-35 psi of pressure when sandblasting titanium. Also, sandblast at a 45o angle and never use a particle size less than 120-150 microns of pure aluminum oxide abrasive. The article instructs you to blast the inside of the frame but first blast the outer surface prior to porcelain application; the inner surface of the abutments will be sandblasted after firing cycles to remove the oxide that forms internally. To clean the inside of the abutments, use a 50-micron-grit abrasive and blast at 2 bars or less of pressure; a larger grit size can damage the margins. After sandblasting, bench set the titanium frame for 5-10 minutes (not to exceed 30 minutes) to undergo the passivation process. This step is critical to the success of bonding to titanium; during this time, titanium naturally develops a very fine oxide layer that prevents corrosion and is the contributing factor for biocompatibility of the material. Failure to implement this step will lead to failure of the restoration. Avoid ultrasonic cleaning after sandblasting; steam cleaning is recommended by most manufacturers. GC recommends that its GC Initial Porcelain Ti™ Bonder be applied in a thin enough layer that the coping shines through. When applying the bonder, brush out pooling and thick streaks of the bonder for a thin, uniform coating. Properly fired bonder surfaceis dark and has a slightly shiny appearance; gray patches of fired bonder indicate the use of too much bonder. GC also recommends that the first layer of opaque is applied as a very thin wash on the Ti Bonder treated surface; apply additional layers as needed along with appropriate modifiers. Complete the porcelain buildup, finish contours, set occlusion and glaze. When polishing and cleaning titanium after the glaze, use polish wheels and high-shine compounds specifically designed for titanium. Polish the exposed titanium finish lines, wait 10 minutes for the passivation process to occur, then steam clean the restoration. This passivation process seals the surface of the titanium and prevents corrosion that would discolor the metal later.
Vident, a VITA® Company · Sep 20 8:00 am to 5:00 pm · Brown Deer, WI
Vident, a VITA® Company · Oct 25 8:00 am to 5:00 pm · Reston, VA
It is with great sadness that we must share news of the passing of Arlo King, CDT and Director of Technical Services for DENTSPLY Prosthetics. Arlo was well-known, -liked and -respected throughout the...See more dental industry as the face and leader of DENTSPLY's laboratory technical support services. Those who knew Arlo were acutely aware of his love of the trade and strong loyalty to DENTSPLY. It was Arlo's goal to get better so he could get back to work. As he stated it in a recent text message, "I just can't go to work, so I am going to work from home." Arlo joined DENTSPLY Ceramco in 1992 at the close of his 20-year U.S. Air Force military career. It was in the military where Arlo gained his training as a dental laboratory technician and launched his dental career. The influence of his military background was apparent in Arlo's can-do, get-it-done attitude. You could always count on his no-nonsense, honest opinion. Those who knew Arlo were familiar with his great sense of humor and infectious laugh. One of his favorite stories to share was the time he had to take full-body impressions of the Air Force pilots for special gear—and it included both male and female crew. Arlo's sense of humor and genuine caring for his team, co-workers and customers made working with him a pleasure. At the core of his being, Arlo was a teacher. He was the unequivocal, go-to person for all things DENTSPLY technical. As a matter of fact, he had his own DENTSPLY Ceramco web page - "Ask Arlo". He, not only possessed technical mastery and was very patient, but he also had the gift for being able to communicate his knowledge at a level which made details easy to understand and learning less intimidating. Surely his teaching ability stemmed from his passion for learning. Give him a technical hurdle, the next chance he had, he'd be doing his homework to figure out how to solve it. This ability helped Arlo lead DENTSPLY from a traditional materials manufacturer to an integrated digital service provider. During his 21-year career with DENTSPLY, Arlo was the technical lead for the Prosthetics product portfolio. In 2001, he played a key role in the launch of Ceramco® 3, which remains a leading global porcelain system. In 2009, he worked to develop the industry's first digital denture prescription, TruRx®, which bears a U.S. patent in his name. Arlo's accomplishments list is extensive. He has lectured extensively in the U.S. and abroad. He has published articles in the major dental technical trade journals. Arlo has provided technical consult to key dental thought leaders. He has received numerous awards. Though highly regarded throughout the industry, Arlo was humble and spoke little of his lofty accomplishments. One of the accolades that meant a great deal to him was the "Excellence in Education" award, presented to him in 2008 by the National Association of Dental Labs in recognition of his outstanding educational contributions to the Dental Laboratory profession. When not working, Arlo enjoyed creating, from carpentry/remodeling to gardening to photography. He was a natural craftsman, cultivating all that he could touch around him. He took great pride in sharing that his yard didn't have a blade of grass out-of-place. Arlo also enjoyed traveling, and on-the-road for DENTSPLY was where Arlo spent many hours. For a few years, his home-away-from home was an apartment in York, PA. During this time he used to joke that he didn't care what he ate, so long as it wasn't on a paper plate! Arlo loved his family, especially his grandbabies, who were the light of his life. He rarely took vacation, but made an exception when it came to visiting his children. On behalf of Arlo's DENTSPLY global family, we extend our heart-felt condolences to Arlo's wife, Archie, sons, Rickie and David, daughter-in-laws, Doris and Lilia and his six grandchildren. We are forever grateful for Arlo's leadership and friendship which have immeasurably enriched our lives and the dental industry.
Advanced Dental Products, Inc. is pleased to announce the acquisition of the Jelrus porcelain furnace spare parts sales and repairs of the VIP Universal X-Press. They will also supply muffles and thermocouples...See more for all Jelrus porcelain furnaces. The acquisition became effective on September 1, 2013. Jelrus, the dental laboratory division of Air Techniques, has a proven record of providing well-belt, dependable laboratory equipment. The acquisition by Advanced Dental Products, Inc. further enhances their own product line of high quality muffles, both quartz and non-quarts, for most porcelain furnaces. Please direct all Jelrus inquires to Advanced Dental Products, Inc. customer service at 800 645-7237.
Jensen Dental Announces Launch of the Preciso Education Connection; Contains Suite of Online Tools For CAD/CAM Users
NORTH HAVEN, Conn. - Jensen Dental today announced the launch of the Preciso Education Connection, a suite of online tools and information for users of the Preciso Digital Dentistry Solution. The Preciso...See more Education Connection makes it easy to access a variety of useful information for Jensen's CAD/CAM system. Assets available on the website include a variety of videos on each step of the digital restoration process including equipment set-up, scanning, designing, milling, restoration characterization, and sintering as well as a Frequently Asked Questions section containing additional helpful information. Also available on the site are a variety of recorded educational webinars providing additional instruction and education for each aspect of the Preciso Digital Dentistry Solution. "Jensen has built its reputation with dental laboratories over the last 35 years in large part due to our commitment to education. As Jensen continues to evolve and help our customers grow, the Preciso Education Connection is a natural extension of our educational offering. This resource is intended to make it easy to access the instructional information our digital customers need to integrate digital into their workflow, and consistently create beautiful results while increasing efficiencies in their lab," said Joseph Carofano, General Manager of Jensen Dental. Current users of the Preciso Digital Dentistry Solution can visit www.PrecisoEducation.com to begin accessing these new tools immediately. Dental laboratories looking to learn more about the Preciso Digital Dentistry Solution and how materials such as Lava Plus High Translucency Zirconia and Lava Ultimate Restorative can help differentiate their lab are encouraged to visit www.PrecisoDental.com. Visitors to this site can learn more about the various components of Preciso through a variety of resources including, white papers, webinars, and ROI calculators. They can also call 800-243-2000 and ask to speak to a Jensen Sales Consultant for a one-on-one consultation on how to create beautiful results through digital dentistry. About Jensen Dental Jensen Dental helps dental laboratories and dentists create beautiful restorations more efficiently by offering a full suite of innovative solutions backed by world-class education and support. An international ISO 13485 certified dental product manufacturer and distributor, Jensen provides quality products and services including digital CAD/CAM systems and digital materials, alloys, refining, porcelain, investment, articulators, occlusal molds, furnaces, and removables. Jensen has been a trusted partner to dental lab technicians and dentists for more than 35 years. Media Contact Jensen Dental Joseph Carofano, General Manager (203) 239-2090 x 2238 email@example.com
On March 24, 2013, the dental industry lost a revered leader, colleague and friend, Norbert Duepner. Norbert joined the Argen family as Technical Director over 27 years ago and leaves in his legacy one...See more of the strongest Technical Support Departments operating in the dental landscape today. Known throughout the industry, Norbert was a highly respected professional who developed relationships with dental laboratories worldwide. Norbert possessed the unique ability to tailor technical solutions to customer needs and approached each call with individualized care and a kind and cheerful demeanor. He was a cornerstone at Argen serving customers until Friday, March 22nd, just short of his 81 birthday. "I am very saddened by this sudden loss, but I am so thankful for the 27 years I had the honor and privilege of knowing and working with Norb," commented Anton Woolf, CEO of The Argen Corporation. "Norb was literally a giant in the dental industry and respected by everyone who knew him. We are so grateful to Norb for his incredible passion, care, and loyalty." In 1959 Norbert received his certification as Certified Dental Technician (CDT) from Northwestern University. Prior to his time with Argen, his long-standing career included 2 years with the United States Army Dental Lab, Management positions with several porcelain and dental lab departments throughout the Midwest and lab owner for 11 years. Norbert was 1 of an elite group of only 56 individuals in the United States who held the title of Master CDT and 1 of 8 individuals who hold 50 Year CDT's. In 2010, The National Board for Certification in Dental Laboratory Technology (NBC) named Norbert 2010 CDT of the Year, an honor to the many years of support that Norbert dedicated to laboratories worldwide. The outpouring of respect for Norbert reaffirms the passion and dedication he had for his work and customers. Norbert's honest and genuine character had a lasting effect on the lives of many. He was always available to help with technical issues and, in the spirit of a true educator, was happy to share his knowledge with the novice and seasoned dental professional alike. You may say that he was the magic ingredient to Argen's technical department's success. Norbert dedicated his life to continued education. Join the Woolf Family and The Argen Corporation in honoring Norbert's life passion by donating to the NADL's Foundation for Dental Laboratory Technology (FDLT) Pillar Scholarship Program. FDLT Pillar Scholarships are awarded to individuals applying to earn their CDT or CDT's who wish to obtain an additional specialties. If you would like to make a donation in memory of Norbert, please visit www.dentallabfoundation.org and click "Donate Now." You may download a pledge form or make a donation online. If donating online please check the box "In memory of Norbert Duepner, Master CDT." If manually completing a donation form, please indicate that the pledge is made "In memory of Norbert Duepner, Master CDT". Argen has also created a website for anyone who would like to leave a memorial tribute or story of how Norbert touched your life. Please visit http://norbert-duepner.forevermissed.com/. Norbert was an integral member of the Argen Family, his gentle spirit, kind smile and presence will be deeply missed.
WIELAND's Reflex Dimension One for metal ceramics and Zenoflex Dimension One for zirconium oxide are true one-powder, one-layer, one-bake porcelain systems. In addition, modifiers previously used only...See more for veneering oxide ceramics are now available within the Reflex system. The increased intensity of the basic Zenoflex Dimension colors offersÂ brilliant results when space is limited. Both porcelains demonstrate excellent fluorescence and natural opalescence.