Monday, January 28, 2013

Featherstone named dean of UCSF School of Dentistry


Featherstone named dean of UCSF School of Dentistry
By DrBicuspid Staff
September 8, 2008 -- John Featherstone, M.Sc., Ph.D., has been named dean of the School of Dentistry at the University of California, San Francisco (UCSF).
In an e-mail message to the campus community on September 5, UCSF Chancellor J. Michael Bishop, M.D., said that Dr. Featherstone, who has been serving as interim dean, would become the next dean pending approval by the UC Board of Regents.
"Dr. Featherstone has been on the UCSF faculty for 13 years, and his exemplary service demonstrates how well-suited he is to serve as the dean on an ongoing basis," Dr. Bishop wrote. "As interim dean, he has demonstrated excellent leadership and management skills, with accomplishments that include selecting and appointing a department chair, establishing the new position of associate dean for clinical affairs as well as restructuring the school administration accordingly, and improving the clinical infrastructure and the financial situation of the predoctoral dental clinics."

Copyright © 2008 DrBicuspid.com

Ultrasonic surgery eases sinus lifts and tooth extractions


Ultrasonic surgery eases sinus lifts and tooth extractions
By Rosemary Frei, MSc, DrBicuspid.com contributing writer
September 8, 2008 -- The use of very high-frequency sound waves -- ultrasound -- isn't just for bats and dolphins anymore. It is the new standard for everything from industrial cleaning to abdominal imaging. And now it's entering the world of dental surgery.
Ultrasonic surgery, also known as piezosurgery, can be used for cutting or grinding bone in sinus lifts, ridge augmentation, bone grafting, bone-block harvesting, and extraction of impacted teeth and roots. The ultrasonic devices developed for dentistry operate at frequencies of 20-35 KHz. The high-frequency sound waves sail right through adjacent soft tissues without damaging them, thus avoiding many of the complications associated with traditional surgical tools such as chisels and burs.
For example, perforation of the Schneiderian membrane occurs about a third of the time when conventional rotary instruments are used to do sinus lifts. But with ultrasound instruments the complication is relatively rare, noted Stephen Wallace, D.D.S., a New York University professor and a periodontist in private practice in Waterbury, CT. He was also one of the first people in the U.S. to perform ultrasonic dental surgery.
"We did a human study and showed the perforation rate is cut by 75%, to just 7%," Dr. Wallace said (International Journal of Periodontics and Restorative Dentistry, September/October 2007, Vol. 27:5, pp. 413-419).
In that study, Dr. Wallace and other periodontists from New York University and Israel pooled the analyses of their consecutive sinus lifting cases using the Piezosurgery device manufactured by Mectron Medical Technology. They noted a total of 7 sinus perforations in 100 procedures -- 3 caused by an extremely thin membrane and the others by the presence of a septum. The perforations all occurred during the hand elevation that followed use of the ultrasonic device, Dr. Wallace noted.
Which ultrasonic system should you buy?
Five ultrasonic surgical systems are now commercially available in the U.S. for cutting or grinding bone in dental applications.
Mectron Medical Technology was one of the first companies to offer this technology to the dental market with its Piezosurgery device. The Piezotome made by Satelec and marketed by Acteon is also available in the U.S., as is the Ultrasonic Bone Surgery device made by Resista and sold by Ace.
Also available are Piezon Master Surgery by Electro Medical Systems (EMS) and VarioSurg made by NSK and sold by Brasseler. Other units currently awaiting 510(k) marketing clearance from the FDA are BioSaf's Easy Surgery and Esacrome's SurgySonic.
The price of these systems ranges from $8,000 to $17,000.
If you are interested in reading what users of these products think about these products and why, check out this forum.
Another study found that using an ultrasonic device to perform bilateral sagittal split osteotomies of the mandible was more time-consuming compared to conventional techniques involving saws, chisels, and burs, but the osteotomies had a higher level of precision. In addition, the ultrasonic procedure offered the advantage of a blood-free surgical field (International Journal of Oral and Maxillofacial Surgery, September 2005, Vol. 34:6, pp. 590-593).
But not all the research has been positive. A recent report from Italy showing a 30.8% membrane-perforation rate in sinus-elevation procedures performed with the Piezosurgery device, versus a 23% perforation rate with conventional instruments (Clinical Oral Implants Research, May 2008, Vol. 19:5, pp. 511-515).
The investigators performed a prelift osteotomy for sinus access in 13 patients using the Piezosurgery system on one side of the maxilla in each patient and rotary diamond burs on the other side. Each side was completed in approximately the same amount of time, but 4 (30.8%) perforations occurred with the Piezosurgery device and 3 (23%) with the conventional instruments.
"It's the only negative report on the Piezosurgery device I've seen in the last 20 years," Dr. Wallace said. "In the program in which I teach residents from around the world how to use these instruments, they're uniformly successful using the Piezosurgery device, even though they're novices. So why there were these complications in the Italian paper, I can't explain."
Dr. Wallace learned how to use the Piezosurgery device about six years ago, at the elbow of one of its inventors, Tomaso Vercellotti, M.D., D.D.S., and he has been training other dentists how to use the technology ever since. He now teaches a two-year fellowship in implant dentistry at New York University that includes instruction in ultrasonic surgery. He also taught a course on ultrasonic surgery in September at the American Academy of Periodontology's annual meeting.
"None of the ultrasonic surgery companies were highlighted at the course at the AAP, but all of them were represented there," he said. "It was like a 'cage match' in wrestling, where people were able to try the five different machines on the same piece of bone. It was an opportunity people never have in their own clinical practices."
Jeff Thomas, D.D.S., a periodontist in private practice in Newbern, NC, is also a proponent of ultrasonic surgery. He just started his fourth year of teaching courses on ultrasonic surgery, and also performs hundreds of procedures with this technology every year in his own practice.
"I can't say I use it every day, but sometimes I use it three or four times in one day; it just depends on the type of surgery I'm doing," he told DrBicuspid.com. "It's not something you have to have. But it's something I couldn't do without. I can do more procedures less traumatically and more predictably than before ultrasonic surgery was invented."

Copyright © 2008 DrBicuspid.com

Zenith donates fluoride varnish to kids' foundation


Zenith donates fluoride varnish to kids' foundation
By DrBicuspid Staff
September 8, 2008 -- Zenith Dental recently donated more than 56,000 units of ClearShield 5% Sodium Fluoride Varnish to the National Children's Oral Health Foundation (NCOHF), the company announced.
The NCOHF is an international organization whose mission is to eliminate pediatric oral disease for millions of economically disadvantaged children. The NCOHF will donate the fluoride varnish to several nonprofit pediatric oral health facilities.
According to the NCOHF, because of Zenith's ongoing support and donations to the organization, the foundation is honoring Zenith with a grant in the company's name that will be awarded to an as-yet-unnamed children's oral health facility.

Copyright © 2008 DrBicuspid.com

Sunday, January 27, 2013

The changing face of dentistry: Part I


The changing face of dentistry: Part I
By Vanessa Richardson
June 23, 2008 -- Ah, the allure of entrepreneurship: Be your own boss. Set your own hours. Make a decent living and help people in need.
Surprisingly, despite dentistry being one of the most attractive small-business ventures around, in recent years there has been a shortage of dentists in the U.S. -- due in large part to a "generation gap" between retiring and incoming dentists, with not enough of the latter to replace the former. But now this trend is shifting, and with it the face of dentistry.
According to the American Dental Education Association (ADEA), the peak year for new dentists was 1983, when 5,756 dental students graduated. In 2005, total graduates only numbered 4,478, a 23% decrease.
"Those nearing retirement age were part of a big surge of graduating students in the mid-1970s to late 1980s, so actually too many dentists were being produced for the need," said Laura Neumann, ADA's senior vice president of education and professional affairs. "Now things have equalized and once again there's an increase in dental school applicants."
In fact, the ADA expects the number of dentists to increase by 8% between now and 2025, with many more women and minorities stepping into the lead role. In 2005, 12,287 students applied to dental school.
There still aren't enough seats for all the dental school applicants. In addition to a decline in the number of dental schools (56 in 2005, down from 60 in the 1980s), the capacity of those schools is restricted, said John Williams, D.D.S., dean at the University of North Carolina at Chapel Hill School of Dentistry.
"It's not like undergraduate schools where they only need to provide instructors and space," he said. "Huge infrastructure is needed for a new dental school, like labs and clinic spaces. So the small increases we're seeing in dental school enrollment is primarily due to new schools opening up."
But help may be on the way. Three new schools have opened in the past decade, and a new one in Virginia is under way.
The reasons why more people are opting to enter dental school these days vary, but the key seems to be the promise of independence and entrepreneurship. In 2006, when the ADEA polled people about to enter dental school and asked them why they chose that profession, more than 80% listed the top reasons as "ability to control my work time," "self-employment," "income potential," and "service to others."
The values of this generation coincide with dentistry, according to Anne Wells, ADEA's associate executive director for Education Pathways. "They value lifestyle. Income is important but not only the thing; they want control over their practice. It's much more significant to them to develop a meaningful philosophy in life."
Those are the reasons Rhett Raum, a 28-year-old senior at the University of Alabama School of Dentistry in Birmingham and vice president of the American Student Dental Association, went into dentistry. "I have a degree in business management and I used to run a B&B, so I have an entrepreneurial background. What drew me to dentistry was the ability to be a small-business owner, be my own boss, and have financial flexibility."
Raum is an anomaly of sorts, however, because he is purchasing a practice in a small Tennessee town with a population of 4,000. Most dental school graduates are opting to go to urban and suburban areas where there are already plenty of dentists, leaving sizable portions of the U.S. without access to oral care.
"It's less of a shortage and more of a maldistribution," Neumann said. That means dentists in inner cities, rural areas, and small towns who are planning to retire will have a harder time finding their replacements.
Some young people are being lured away from medical school when they hear about equally lucrative and less hectic careers in dentistry. In 2004, general practitioners earned an annual average of $186,000, while specialists averaged $315,000, according to the ADA.
"My physician friends send their kids to dental school because they don't like what's going on with the laws in their industry, whereas the dental industry has not been nearly as encumbered," said Paul Gruber, a 64-year-old dentist in Sheboygan, WI.
Who’s signing up
What will the next generation of dentists look like? In terms of demographics, one population that is taking off is women, who now account for 44% of all dental school graduates and 19% of all dentists, according to the ADEA.
While these numbers are expected to continue to increase, however, another trend is worth noting: a growing number of female dentists will work part time to balance career and family. According to the ADA, 14% of dentists now work part time; this number is expected to reach 19% by 2025, with most being female dentists.
Jack Dillenberg, D.D.S., dean of the University Arizona School of Dentistry & Oral Health, worries about that figure. "Women make up half our class and they are great dentists, but they don't work as long and therefore won't be as productive overall."
But others argue that the flexible hours of dentistry will allow women to be at least as productive as men. That's the opinion of Laura Rammer, a 29-year-old general dentistry student who graduated from Marquette University Dental School in Milwaukee last summer. She mentored with Dr. Gruber in Sheboygan, and is considering taking over his practice when he retires.
"It's now an option for the woman to be a full-time worker and the husband a stay-at-home parent," she said. "I'm going to keep going to the office. Besides, I work four days, from 7 a.m. to 5 p.m. That's accommodating for families."
The flexibility of dental work is also attracting many women to become hygienists. The number of dental hygiene programs has steadily increased during the past decade, numbering 270 with 7,200 graduates in 2004. That's nearly twice the amount of dental school graduates -- and the education is half the cost of dental school.
Dental hygiene is the fifth fastest growing profession in the U.S., said Jean Connor, president of the American Dental Hygienists' Association (ADHA). "They are mostly women, often because hygienists stay licensed for their life cycle, so it's good for women who want to have kids and a flexible or part-time career. It's a good-pay salary. And you can be a healthcare professional, but unlike nursing you don't have to work nights or weekends."
Hygienists are expected to be on the front lines of expanding oral care to underserved populations. The ADHA is developing a curriculum to create a master's degree for advanced dental hygiene practitioner. Graduates would be able to do many services a dentist does -- such as cavity prep, extractions, and prescriptions -- and without a dentist's supervision. The goal is to have them serve in lieu of dentists in underserved areas.
"They can be a long arm reaching out to people in need," Connor said. "They'll be important because they can provide dental services and get people on the learning curve of oral health."
Serving the underserved
While the number of female dentists is on the rise, minority enrollment is lagging. More Asians are enrolling, which accounts for the vast majority of minority applicants. However, blacks and Hispanics currently comprise less than 10% of U.S. dentists, far below their numbers in the U.S. population.
This is where targeted minority recruitment of dental students and mentoring can play a key role. The ADEA found that dentists of an ethnic minority background, especially Asians and Hispanics, often chose the career because they wanted to serve their ethnic group or a low-income population in general.
"It's a priority for dental schools as well as for organized dentistry to raise those numbers," Neumann said. "It's a concern about our ability to meet the needs of the public because people want to go to a health provider that comes from their own background and speaks the same language."
In its numerous programs to boost minority representation, the ADEA is working with the Association of American Medical Colleges on the Summer Medical and Dental Education Program that identifies college freshmen and sophomores interested in dentistry and give them a summer-school education.
"This can enhance their chances to do well in both undergrad and dental school," Wells said. Nearly 1,000 students currently participate, along with 12 medical and dental schools.
In part II of this series on the future of dentistry, author Vanessa Richardson tells how dental education is changing, from revised dental school curriculums to targeted recruitment and mentoring.

National Kidney Foundation drops support of fluoridation


National Kidney Foundation drops support of fluoridation
By Rabia Mughal, Contributing Editor
June 20, 2008 -- The ADA lost an ally in the water-fluoridation debate when the National Kidney Foundation (NKF) changed its supportive stance on June 7. The foundation's name has since been removed from the ADA's Fluoridation Facts compendium.
In a recent position paper, the NKF said that it would be prudent to monitor the fluoride intake of patients with chronic kidney disease (CKD), and that these patients should be made aware of potential risk from fluoride. The NKF also stated that it no longer has a stance on the optimal fluoridation of water.
The NKF's previous paper on fluoridation, released in 1981, maintained that there was insufficient evidence to recommend fluoride-free drinking water for the kidney disease population.
The 1981 paper has been challenged by a lawyer, an academic dentist, and a public health professional (Daniel Stockin,  M.P.H., at the Lillie Center, a Georgia-based public health training firm working to end water fluoridation). They criticized the NKF for adhering to an outdated position on fluoride and ignoring new information, such as a published review by Kidney Health Australia and the National Research Council's (NRC) March 2006 report on fluoridation.
As DrBicuspid.com reported in an earlier article, the NRC concluded that the Environment Protection Agency's current limit (4 mg/L) of fluoride in drinking water should be lowered to protect children from fluorosis, which causes yellowing and pitting of the enamel. In adults, tentative evidence links overexposure to fluoride with bone fracture, damage to the brain and thyroid gland, and mild skeletal fluorosis.
The report also notes that, according to case reports and in vitro and animal studies, exposure to fluoride at concentrations greater than 4 mg/L can irritate the gastrointestinal system, affect renal tissues and function, and alter hepatic and immunologic parameters.
"Such effects are unlikely to be a risk for the average individual exposed to fluoride at 4 mg/L in drinking water," the NRC noted. "However, a potentially susceptible subpopulation comprises individuals with renal impairments who retain more fluoride than healthy people do."
The NKF now says that patients with chronic kidney disease should be made aware of the potential risk of fluoride exposure through information on its Web site. The report also notes that this risk is greatest in areas with naturally high water fluoride levels.
"The oral health of people with CKD is certainly of interest to the NKF, but balancing the overall benefits and risks of fluoride exposure is the primary concern," the organization stated.
Critics of community water fluoridation have hailed this new stance as a minor victory but argue that the statement does not go far enough.
"They issued no press release about this new position and offered no direct link to the information. You have to type in the term 'fluoride' and hit search to find this information," Stockin said.
Stockin has been arguing against community water fluoridation for years.
"When you are going to expose an individual to a chemical like fluoride, you need to understand their health and account for total dosage," he said. "Water fluoridation violates these fundamental principles."
It exposes people of varying health to an unknown amount of a potentially hazardous material, he added.
He admits that fluoride has a small amount of caries prevention ability, but feels that benefit does not balance out the overall health risks.
"The reason that dentists have not stopped using fluoride is because they are too invested in it," Stockin said. "If I were a dentist, I would not touch fluoride with a 10-foot pole."
ADA spokesperson Howard Pollick, B.D.S., M.P.H., a professor at the University of California, San Francisco School of Dentistry, feels there has been no change in the NKF's stance.
"Tap water has not been recommended for dialysis patients since 1981," he said, pointing to one of the recommendations in the new position paper. And they maintain that there is not enough evidence to recommend fluoride-free drinking water, he added.
So why has the NKF removed its name from the ADA fluoride compendium?
"There is legal pressure on them, and this is perhaps a response to that," Dr. Pollick said.
There is overwhelming evidence to prove that fluoridated water reduces dental decay but no evidence to support any health concerns, he added.
According to U.S. Public Health Service guidelines, the optimal water fluoridation level that prevents dental decay without causing dental fluorosis is between 0.7mg/L to 1.2mg/L.
In which case, 4 mg/L sounds fairly high.
"It's the limit," Dr. Pollick explained. "If you go above it, you are at risk for skeletal and dental fluorosis."
Steven M. Levy, D.D.S., M.P.H., agrees. He is the director of the Iowa Fluoride Study, which has tracked the subtle effects of fluoride on 700 Iowa children for the past 16 years.
"Since water fluoridation is the most efficient and cost-effective way to prevent caries, I do strongly believe it is appropriate to encourage expanded community water fluoridation, and that benefits greatly exceed possible risks," he said.
The NKF refused to comment.
"The 1981 NKF position paper on fluoridation is outdated. The paper is withdrawn and will no longer be circulated, effective from the 10/06/07," concludes the new position paper.

OptumHealth Financial Services offers dentists electronic billing


OptumHealth Financial Services offers dentists electronic billing
By DrBicuspid Staff
June 20, 2008 -- OptumHealth Financial Services has added electronic billing to its dental-specific services.
Using the OptumHealth Electronic Payment and Statements feature, dentists can conduct claims payment transactions and receive remittance advice electronically.
"Dental providers and insurers process almost 275 million claims a year using paper methods," the company said in a press release. "OptumHealth Electronic Payments and Statements has the potential to save more than $100 million a year in administrative costs, according to OptumHealth estimates."
"Bringing this capability to the dental industry helps streamline and simplify healthcare finance for everyone in the system -- individuals, employers, dental plans, and dental care providers," said Chad Wilkins, CEO of OptumHealth Financial Services.

Copyright © 2008 DrBicuspid.com

Friday, January 25, 2013

Michigan dental school fights $1.7 million verdict


Michigan dental school fights $1.7 million verdict
By DrBicuspid Staff
December 24, 2008 -- Four faculty members of the University of Michigan School of Dentistry are demanding a new trial in the case of a student who was awarded more than $1 million for unfair dismissal from the school, according to an Associated Press (AP) story.
As previously reported by DrBicuspid.com, Alissa Zwick was awarded $1.7 million this month after a federal jury decided that her due process rights were violated and she was unfairly dismissed from the school in 2005.
She was the victim of infighting between faculty members and the school's associate dean, Marilyn Lantz, D.M.D., Zwick's attorney Deborah Gordon told DrBicuspid.com at the time.
Now the faculty members are asking for a new trial or a reduction in the jury's award, plus $500,000 for emotional distress, the AP reported.
"Lawyers for Lantz and three other defendants -- Drs. Bill Piskorowski, Mark Snyder, and Fred Burgett -- said key rulings on evidence and jury instructions swayed jurors in Zwick's favor," the AP reported.
U.S. District Judge Marianne Battani will hear arguments on February 11.