Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Visiting dental researcher at Case invents new technology

21.07.2004


To aid orthodontists in use of new orthoscrew



The newly Food and Drug Administration-approved orthoscrew--so tiny it is dwarfed by a fingertip--is difficult to place between the narrow spaces of teeth roots and bone.
Young Jin Jeon, a visiting assistant professor at the Case Western Reserve University School of Dental Medicine and an orthodontist from Pusan National University in Korea, developed a new grid device during his yearlong residency at Case that will help orthodontists accurately place and guide the newly approved mini-orthoscrews without damaging the teeth.

Called the JJ Aligner, which looks like a tiny half-inch plastic square of graph paper, is attached by the orthodontist to patient’s jaw and then x-rayed to show where teeth roots and bone are in relations to the grid. After the patient’s gum tissue has been numbed (much like that for a dental filling), the orthodontist will implant the screw using the combination of the x-ray and the grid as a guide. Jeon has a patent pending in Korea on the device. When he returns to Korea at the end of June, he plans to form a company to manufacture the grids for the eventual use in Korea and the United States.



Mark Hans, chair of Case’s department of orthodontics at the dental school, praised the new grid device, saying that the device will allow orthodontists, who are interested in using the orthoscrews to accurately place them between the teeth without damaging the roots of the teeth.

Reducing placement errors which might damage teeth and bones motivated Jeon to design the grid. "Without experience, it is difficult to learn where to put the screws by just looking at an x-ray and the patient’s gums," said Jeon.

Since 1996, Korea has led the development of medical screws in dentistry. The screws are a variation of the surgical steel pins used to piece broken bones together and have a head much like the screws used to anchor wood to a wall.

These screws have been used in Korea for some of the most complex orthodontic cases and can hold wires where teeth may be missing or where the movement of teeth can only take place by using head gear (appliance that has to worn at night that uses the head or back of the neck to assist the orthodontist in moving the teeth).

In the United States, oral surgeons have used a type of dental screw as a post for teeth implants, but those screws permanently remain in place as bone grows around the screw over a six-month period as the anchor to hold the implanted tooth. The mini-screws for orthodontics are designed to be removable and taken out after the teeth have been moved their way into the correct position.

The Case dental school’s orthodontic clinic is among the first in the country to use the new screw technology, said Hans. It currently is being used on one patient.

Hans said he believes the technology will become popular and, in some difficult orthodontic cases, might even eliminate the need for upper jaw surgery.

"The orthoscrews are not used for routine orthodontic cases," added Hans, but only in very complicated ones such as cleft palates or other jaw deformities that require unusual tooth movement and where the screws can replace the head as the anchor. Jeon, who has used the technology for a number of years on his patients in Korea, has seen a reduction in the number of jaw surgeries where the screws can anchor wires in ways that can push or pull teeth in unusual directions.

Susan Griffith | EurekAlert!
Further information:
http://www.case.edu

More articles from Health and Medicine:

nachricht Study suggests possible new target for treating and preventing Alzheimer's
02.12.2016 | Oregon Health & Science University

nachricht The first analysis of Ewing's sarcoma methyloma opens doors to new treatments
01.12.2016 | IDIBELL-Bellvitge Biomedical Research Institute

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>