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Christopher Holden is joining Ivoclar Vivadent as senior vice president of business development and new markets. He will be responsible for the expansion of the clinical and laboratory businesses through product or company acquisition and market development. Also, he will be very involved in the launch and support of the company’s digital businesses.

“In this new position, I look forward to helping dentistry maximize the full potential of digital technologies and related products and materials in order to deliver quality, aesthetic dentistry,” said Holden. “By focusing on the comprehensive digital solutions and processes that lead to successful outcomes, we can create real value for laboratories, dentists, and, most importantly, patients.”

Holden began his dental career with Dentsply, managing various roles in sales and marketing before joining Heraeus Kulzer North America as head of its global dentistry division in 2004 and being promoted to president and general manager of that company in 2006. Additionally, he has served on the Journal of the ADA Advisory Board and on the Board of Fellows at the Harvard University School of Dental Medicine.

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PreXion’s Excelsior 3D CBCT couples the industry’s smallest focal spot (0.3 mm) with a voxel size of 0.1 to 0.2; 1024 volume size; 360° gantry rotation; and upgrades in PreXion’s software, which integrates into networks without any specialized hardware. Thanks to these advances, PreXion can deliver 30% lower radiation exposure without compromising image quality.

The Excelsior 3D CBCT also offers 4 fields of view, 48 preset scan mode options, bite-wing capture, temporomandibular joint (TMJ) capture, and optional cephalometric. Applications include implantology, orthodontics, oral surgery, periodontics, endodontics, TMJ, airway analysis, and ear/nose/throat.

For more information, call PreXion at (650) 212-0300 or email This email address is being protected from spambots. You need JavaScript enabled to view it..

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A pair of professors from the Columbia University College of Dental Medicine took home top honors from the 95th General Session and Exhibition of the American Association of Dental Research (AADR), International Association of Dental Research (IADR), and Canadian Association for Dental Research in San Francisco during a ceremony on March 22.

First, the IADR awarded its 2017 Distinguished Scientist Award in Basic Research in Periodontal Disease to Panos N. Papapanou, DDS, PhD, professor and chair of the section of oral, diagnostic, and rehabilitation sciences at the school. Given annually to a researcher chosen by previous honorees, the award recognizes his diverse and prolific contributions to areas of study including the epidemiology of periodontal diseases, their pathobiology, the assessment of microbial and host-derived risk factors, and the diseases’ role as a health stressor in heart disease and pregnancy complications.

“Dr. Papapanou has made remarkable contributions to our understanding of periodontal diseases in the context of a person’s overall health, as well as elucidated the connections with other conditions,” said Christian S. Stohler, DMD, DrMedDent, dean of the dental school. “This is a well-deserved honor, and we at the Columbia University College of Dental Medicine are proud to count him among our faculty.”

Also, the AADR honored Stohler with its 2017 Jack Hein Public Service Award for his work in promoting and supporting oral health research. Each year, the Jack Hein Public Service Award honors someone who has demonstrated exemplary service to the interests and activities of oral health research. Stohler served as president of the Friends of the National Institute of Dental and Craniofacial Research from 2011 to 2015, when the organization's board voted to integrate its operations with the AADR. Stohler led this transition in 2016 with the goal of a single, amplified voice advocating on Capitol Hill for more research in dental and oral health and craniofacial issues.

Stohler also has led the Columbia University College of Dental Medicine since 2013. Previously, he was dean of the University of Maryland School of Dentistry. As a researcher, he helped lead work funded by the National Institutes of Health exploring the genetics, endocrinology, and neurobiology of the human response to pain, particularly in patients with temporomandibular joint dysfunction. He was a member of the first scientific team to demonstrate that a patient’s belief in a placebo painkiller can prompt the brain to release endorphins as well. And, he is the author of more than 120 articles and chapters.

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New research in Japan shows that teeth could be grown in a large-scale animal model – watch now to learn the details of the study. In Europe, a plan has been put in place to phase out mercury by the year 2020. And lastly, the Wednesday Watch brings you just some of the big headlines delivered at last week’s International Dental Show in Germany and Hinman Dental Meeting in Atlanta.

Did You Miss the Last DNN Broadcast? Watch it Now...

New Partnership in Dental 3-D Printing Sector

A new partnership has been announced that will streamline the 3-D printing process for dentistry. Watch now to find out the details. Also, we bring an update from the National Children’s Oral Health Foundation, or America’s Toothfairy, about their annual Smile Drive. This week marks the beginning of the Hinman Dental Meeting in Atlanta – find out what’s in store for the 105th annual gathering of dental professionals.

Watch Now»

The American Academy of Implant Dentistry (AAID) reports that 15 million Americans have crown or bridge replacements, while 3 million have dental implants—and the number of those with implants is rising by 500,000 a year. Plus, the American and European markets for dental implants will rise to $4.2 billion by 2022. Yet, the AAID cautions, a 2005 study indicated that 5% to 10% of all dental implants fail. A new nanocoating developed by a pair of schools in the United Kingdom, however, aims to improve the success rate. 

Failures are caused by mechanical problems, a poor connection to the bones where the implant is located, rejection, or infection. The primary cause of failure, though, is peri-implantitis as pathogenic microbes in the oral cavity develop into biofilms on implants. The destructive inflammatory process that results affects the soft and hard tissues surrounding the implant, and as failure occurs, the implant must be removed.

Scientists from the School of Biological Sciences at the Plymouth University Peninsula Schools of Medicine and Dentistry and the School of Engineering at Plymouth University have developed an approach using a combination of silver, titanium, and hydroxyapatite nanocoatings that, when applied to the surface of titanium alloy implants, inhibits bacterial growth and reduces the formation of bacterial biofilm on the implants’ surface by 97.5%. It also supports successful integration into surrounding bone and accelerated bone healing. 

“In this cross-faculty study, we have identified the means to protect dental implants against the most common cause of their failure,” said Christopher Tredwin, BDS, MSc, PhD, head of the Plymouth University School of Dentistry. “The potential of our work for increased patient comfort and satisfaction and reduced costs is great, and we look forward to translating our findings into clinical practice.”

“As yet there are no nanospecific guidelines in dental or medical implant legislation, and we are, with colleagues elsewhere, guiding the way in this area. The European Union recognizes that medical devices and implants must perform as expected for their intended use and be better than similar items in the market, be safe for the intended use or safer than an existing item, and be biocompatible or have negligible toxicity,” said Richard Hardy, PhD, leader of nanoscience activity at the University of Plymouth. “Our work has been about proving these criteria, which we have done in vitro. The next step would be to demonstrate the effectiveness of our discovery, perhaps with animal models and then human volunteers.”

“Current strategies to render the surface of dental implants with antibacterial with the aim to prevent infection and peri-implantitis development include application of antimicrobial coatings loaded with antibiotics or chlorhexidine. However, such approaches are usually effective only in the short term, and the use of chlorhexidine has also been reported to be toxic to human cells,” said Alexandros Besinis, MSc, PhD, lecturer in mechanical engineering at the University of Plymouth. “The significance of our new study is that we have successfully applied a dual-layer silver-hydroxyapatite nanocaoting to titanium alloy medical implants, which helps to overcome these risks.”

The study, “Antibacterial Activity and Biofilm Inhibition by Surface Modified Titanium Alloy Medical Implants Following Application of Silver, Titanium Dioxide, and Hydroxyapatite Coatings,” was published by Nanotoxicology.

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Heraeus Kulzer will operate under the name Kulzer, beginning July 1. Three and a half years ago, Japan’s Mitsui Chemicals Group took over the company’s dental division, and the change in name marks the separation from the previous owner and complete integration with the new owner. The company notes that nothing will change for the dental professionals that it serves, though.

“Our vision is to be the lifetime partner for our customers,” said Akira Misawa, CEO of Heraeus Kulzer. “We understand our customers’ needs and want to grow with them. We do this by helping dental technicians and dentists to restore patients’ oral health and well-being in a safe, more convenient, and cost-effective way. Our mission is to develop and provide best-in-class quality products and services that create reliable solutions. That’s why we’re continuously expanding our global service portfolio.”

Parent company Mitsui Chemicals Inc. fully supports the new strategy and expansion of its services and development work across the board. The current growth plan includes 100 new jobs in the international sales and services organization, of which a third will be created in research and development. In the future, more employees will work on growth initiatives at the company’s headquarters in Hanau, Germany. Also, there will be more service jobs with direct customer contact. 

“The dental market is very competitive, and users are now confronted with an incredibly wide range of products. Complexity is increasing,” said Marc Berendes, chief sales officer at Kulzer. “With our reliable products and new services, we want to help our customers make their processes in practices and laboratories more cost effective.”

According to the company, that’s why individual products, digital technologies, software, and services are now more integrated than ever, allowing users to receive multiple solutions from a single source. One focus of these integration efforts will be consultancy services for workflow optimization. Also, Mitsui’s health division already produces dental materials.

“We’re delighted that Mitsui Chemicals wants to transform the dental division with Kulzer being a strong pillar,” said Misawa. “Drawing on years of knowledge and experience in chemistry and materials development, we can make the most of synergies in order to create new market opportunities.”

For example, Mitsui’s polymer research team is expected to boost the Kulzer specialists’ work on new materials and system solutions. Together, they already produced the cara Print 4.0 3-D printer, which was presented at last week’s International Dental Show in Cologne, Germany.

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The ADA Health Policy Institute will present the free webinar “Why Do Men Earn More Than Women in Medicine, Law, and Dentistry?” on Tuesday, March 28 from 5:00 pm to 6:00 pm CDT. Marko Vujicic, PhD, chief economist and vice president of the ADA, will examine a new study that compares the gender gap in earnings among professionals in these fields. Also, industry-leading presenters and panelists will discuss how the disparity in earnings between men and women professionals is beginning to change, including the following:

  • Tony LoSasso, PhD, professor, division of health policy and administration, School of Public Health, University of Illinois at Chicago;
  • Carol Gomez Summerhays, DDS, past president of the ADA;
  • Lisa Simpson, MB, BCh, MPH, president and CEO of AcademyHealth;

For more information, visit or email This email address is being protected from spambots. You need JavaScript enabled to view it..

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Offered by Great Lakes Orthodontics, the Rhea Occlusal Appliance is the solution to poor-fitting, uncomfortable splints. Significantly different than existing appliances that use heat-softening materials, it reforms to subtle differences in the patient’s dentition and compensates for slight variances in impressions and for deformities caused by plaster expansion.

The Rhea is custom-formed to original models. As a result, chairside seating is only necessary to fine-tune fit and compensate for minor variations. It is available as a Wearguard, Flat Occlusal Plane, or Full Contact with Anterior Guidance.

For more information, call Great Lakes Orthodontics at (800) 828-7626 or visit

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TAUB ProductsKidz Seal-America pit-and-fissure sealant can be used in dry or wet fields. It is tooth-integrating, preventing microleakage and offering long lasting retention. Plus, it boasts low viscosity and is self-adjusting, eliminating the need for addition occlusal adjusting. It comes in a package containing four 1.2-mL syringes and 20 tips.

 For more information, call TAUB Products at (800) 828-2634 or go to

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At the 2017 Hinman Dental Meeting, Dr. Scott Parazynski, astronaut and physician, addressed an enthusiastic crowd. A veteran of 5 space flights, Parazynski has spent 8 weeks in space and 47 hours on space walks. His physician experience has also been put to use outside of Earth—he has served as chief medical officer on multiple expeditions and space flights.

Parazynski was introduced to the Hinman meeting by his friend and fellow speaker Mr. Imtiaz Manji. Parazynski's belief in risk management lends itself to dentistry, as was seen in today's presentation, entitled, "Risk Is an Essential Part of Success."

"People see me as a risk-taker," Parazynski said after his talk on Thursday. "But with risk management, you can maximize success."

This daring-yet-sensible outlook has earned him the unique honor of being the only person to have flown in space and summited Mount Everest. In addition, he is a 2016 inductee of the US Astronaut Hall of Fame. Parazynski continues to invent devices for use in space as well as everyday medical technologies.