When we lose our teeth, perhaps because of illness or injury, the jaw in the toothless area also decreases in volume. This reduction makes it difficult to carry out dental implants, often leaving just one option for replacing lost teeth: building up the jaw with bone transplant.
Researchers at the University of Gothenburg’s Sahlgrenska Academy are now presenting an alternative method. In an experimental study on dogs, the Gothenburg researchers managed to use a brace to move existing teeth into a toothless area with limited bone volume, without any reduction of the tooth's natural attachment in the jaw.
In a subsequent clinical study, consultant Orthodontist Birgitta Lindskog Stokland and her colleagues also managed to show that the same procedure in humans caused only small changes in the tissue around the tooth.
No lasting problems
"X-rays showed some damage to the root known as root resorption, but this didn’t seem to cause any lasting problems," says Lindskog Stokland. "What’s more, our follow-ups a year later showed that the damage had lessened."
The original site of the moved tooth suffers a reduction in bone mass and dental tissue volume, though not to the same extent as when teeth come out for other reasons. This means that this area is well-suited to implants or other tooth replacements, without there being any need for bone transplants.
More teeth more easily
"In other words, many patients can be given more teeth more easily," says Lindskog Stokland.
The thesis has been successfully defended.For more information, please contact: Birgitta Lindskog Stokland
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Highly precise wiring in the Cerebral Cortex
21.09.2017 | Max-Planck-Institut für Hirnforschung
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
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Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
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For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
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