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After years of speculation, CAD/CAM came to fruition in the dental laboratory in 1998 with the official U.S. launch of the Procera® AllCeram Crown, featuring an aluminum oxide coping milled at Nobel Biocare’s production facility in Sweden. The success of Procera—and the introduction of a dozen new in-lab milling systems in...
- April 2013
LMT magazine's LAB DAY in Chicago is the industry's educational superdome and the place for product launches and breaking news in the U.S. This year, more than 3,100 attendees from 47 states and 49 countries came to learn about new techniques, shop for the latest products, and meet up with their peers to share business strategies. Below is an overview of the hot topics that inspried dialogue and debate during our profession's biggest weekend of the year:
Business Barometer: Mixed Reviews. A number of attendees were optimistic about the start of 2013 with many telling LMT that business was...
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- February 2012
The patient was unhappy with her existing restorations on teeth #3-14 because of the dark outline at the margins, tissue recession and the shape of the teeth. See Figure 1
The restoring dentist, Steven Hart, DMD, Chapel Hill, NC, and I recommended replacing the existing restorations with IPS e.max crowns on #6, 7 and 8; a three-unit IPS e.max bridge on #9, 10 and 11; and IPS d.SIGN PFMs with porcelain labial margins on #3, 4, 5, 12, 13 and 14.
Dr. Hart and I selected these two Ivoclar Vivadent products because they enable seamless integration of all-ceramic...
- November 2011
A new female patient was disappointed in her crown on #9, and had been told by another dentist it was the best result she could expect. Although diagnostic waxups aren't commonly done for a single central, they are part of Morris and Dr. Arnold's routine and key to the success of this case. After studying the waxup model, which actually was a reduction carving of tooth #9, they decided that Dr. Arnold would have to bond the mesial of tooth #10. This allowed the fabrication of a new crown that would not only match the contra-lateral tooth in shade and texture, but also in size and contour.
- October 2011
(1) Free, Interactive Webinars
Webinars offer a convenient way for you to provide information to--and interact with--your clients without leaving the comfort of the laboratory or dental office.
Arrowhead Dental Laboratory, Sandy, UT, began offering free monthly webinars in 2009. While initially its webinars were geared to potential clients as a way of giving them a taste of the laboratory and its philosophies, the webinars now include topics for current clients as well, such as how to file insurance claims for oral appliance therapy, practice management and digital occlusion. The...
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- August 2011
Fabricating and matching a single central is challenging enough; Ceramist Alwyn Naraine did it in under three hours. Naraine is an in-house technician at Gallery 57,
a New York City-based dental practice that specializes in same-day all-ceramic restorations; in fact, at least 75% of Naraine's restorative work is seated the same day.
- April 2011
Q: What is the best way to see osseointegration between implant and tissue? Is it possible to find out if the implant is osseo-integrated, histologically, while it's in the patient's mouth?
A: It is possible to verify osseointegration, or the lack thereof, radiographically, before uncovering and fabricating the prosthesis. Once the implant is uncovered and the longer healing cuff is installed, you can check if an implant is loose in the bone by applying a significant amount of torque. Studies have proven that an osseointegrated implant can withstand a counter-clockwise torque of 90ncm, which is...
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RESTORATIVE CHALLENGE: The patient was unhappy with the overall esthetics of her smile. She had a large diastema between teeth #8 and #9, both teeth were too long and disproportionate to her facial features, and tooth #8 was discolored. Composite restorations needed to be replaced. Also, the patient had been bleaching with limited effects and sought lighter teeth (see Figure 1).
Restorative team: William Zanin, The Cusp of Integrity, Wallingford, Connecticut and Dr. John Stevens, Willimantic, Connecticut
Treatment plan: The team decided on all-ceramic restorations for esthetic purposes, specifically...
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A patient's anterior esthetics are enhanced by careful treatment planning, collaboration between the members of the dental team and use of metal-free material options. Here, an aging pinledge bridge is replaced with a zirconia abutment, implant and a Ceramco iC integrated ceramic restoration.
A 29-year-old woman with a normal medical history had lost tooth #8 in a sports accident over 10 years ago. It was restored with a pinledge bridge, which is rare today since it offers limited esthetics. The facial of the natural teeth on either side of the pontic remained as they had been when...
RESTORATIVE CHALLENGE: A 40-year-old male presented with esthetically compromised PFM restorations on teeth #8 and #9. The patient also requested improved alignment and closure of diastemas between the maxillary and mandibular anterior teeth (see Figure 1). Invisalign orthodontic treatment was provided prior to fabrication of the final pressed all-ceramic restorations.
Restorative team: William Mrazek, BS, CDT, Mrazek Prosthodontics, Ltd., Naperville, Illinois and Joseph O'Donnell, DDS, Oak Forest, Illinois
Treatment plan: It was decided that teeth #8 and #9 would be prepared to receive full-coverage...
When dentists are looking for a new laboratory, they are most often persuaded by another dentist's recommendation.* Speaking at LMT Live!'s February program in Chicago, Bob Wakitsch, co-owner, Dental Craft Corp., Ringwood, IL, told attendees that in order to maximize word-of-mouth referrals, laboratory owners should ask their dentist-clients for testimonials and use them when they call on prospective clients and in their marketing materials.
"In addition to soliciting general opinions of your laboratory, be sure to ask for details," he says. "For instance, ask your clients if they've ever...
"Everybody knows impressions are the weak link in the restorative process. We've all been dreaming of the day when computers could take a more accurate impression, and now, that technology has arrived. Digital impressions are the wave of the future," says Laboratory Owner Dave Lampert. His lab, Town & Country Dental Studios, Freeport, New York, is one of the seven labs beta testing the Cadent Electronic Imaging Device, a digital impression-taking system that allows the dental team to fabricate PFM and all-ceramic restorations without a conventional impression. The design of the system builds...
Owner's gross personal income in 2000 versus 2004
Owner's work weeks: 2000 versus 2005
Most common technical problems in laboratories
Restorative systems and tools
The dental laboratory community is a five-plus billion dollar industry and with 75 million baby boomers in the U.S.—many of whom are prime candidates for dental work—the future looks bright for innovative laboratory owners who know how to take advantage of market trends. Dental laboratory owner/manager respondents to our Trends 2005 survey agree: 32% rate the economic health...
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Automation is going to change the laboratory industry in many ways, and some of these changes are already underway.
Technicians will be paid more, considerably more, because it will take fewer technicians to accomplish the same amount of work. For example, we have two Cercon systems and our technicians working with those systems can...
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An educated consumer is much more valuable than an uneducated consumer," says Kamilla Siekierski, owner, Dentek, Inc., Milford, Connecticut. "If the dental laboratory industry can get the message across about the difference between good and bad dentistry, the public will demand good dentistry and that will benefit everyone involved."
Siekierski and other laboratory owners and managers who support greater public awareness of dental technology see numerous benefits for our industry. They feel that it would increase the quality of work produced by laboratories and enable them to charge higher...
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The advent of CAD/CAM technology and other significant advances continue to boost confidence in implant restorations among dental professionals.
"Implants are no longer 'smoke and mirror' technology. They've proven themselves and, for the last five years or so, many technicians and dentists consider them to be the standard of care for qualified patients," says Chris Morris, owner of ADL Dental Laboratory, Louisville, Kentucky.
Once skeptical of the complexity and long-term viability of implants, restorative dentists have become more comfortable prescribing implants as the first choice in...
Like never before, laboratory owners and managers are tapping into the power of CAD/CAM technology, which is proving to be a valuable image enhancer, production booster and profit generator. LMT's exclusive Digital Technology Survey offers a look at where the digital technology market is now and where it's headed.
The advent of CAD/CAM and other digital fabrication systems is unprecedented in our industry. Never before has there been such a rapid explosion of technology embraced by so many, so quickly.
In the past 10 years, close to 30 scanners and milling systems have been introduced to...
There is a life cycle to every product. The upside of getting in early on cutting-edge technology such as CAD/CAM is that you're part of an innovative, select group and there is less price sensitivity, which means you can maintain better margins because there is limited competition. The downside is that you've got to educate your clients and you have to have an appetite for risk.
Here are 10 tips for selecting a CAD/CAM system:
1. The rule of 10. Restoration options vary by CAD/CAM system; for instance, some systems can only produce all-ceramic crowns whereas others can mill almost any type...
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Q: What are the pros and cons of a custom acrylic tray verses a custom light-cured tray?
A: Custom acrylic trays are relatively inexpensive, and in my opinion, this is their only advantage. The negatives include:
The odor of the methylmethacrylate monomer used to fabricate the tray is offensive to most people.
Monomer is very tough on your hands and lungs.
Most importantly, once fabricated, the completed tray will continue to have polymerization shrinkage over the next 24 hours. If the tray is used within this period, it can cause distortion of the impression.
Light-cured tray blanks are more...
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