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 Organ-on-a-chip mimics heart's biomechanical properties
23.02.2017 | Vanderbilt University

nachricht Researchers identify cause of hereditary skeletal muscle disorder
22.02.2017 | Klinikum der Universität München

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>