A frequent problem in orthodontic practice is that the teeth do not remain in their new positions. Can a protein prevent teeth from moving in the mouth?

In the body, some proteins works as small keys that unlock cells and tell them to perform a specific task. Now, research at the Faculty of Dentistry shows that the protein, adiponectin can perhaps affect how a tooth shifts in the mouth. Fellow Sigrid Haugen and co-workers have, investigated this phenomenon.

Adiponectin—an important protein

Signal molecules that serve as keys to initiate processes in our bodies are called hormones. Hormones are produced in many parts of the body. For example, the pancreas produces insulin, which is important for blood sugar regulation. The ovaries and testicles produce sex hormones, and the thyroid gland produces two growth hormones. It is common knowledege that the glands, bone marrow and some areas of the brain produce hormones. However, the fact that fat tissue produces hormones, and is therefore an endocrine organ, is not equally known. Fat tissue actually produces many different hormones. The first to be described were leptin and adiponectin.

 

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Source: medicalxpress.com

 

Studie: Internet-Dominanz nach zehn Jahren gebrochen

Zehn Jahre lang dominierte das Internet die Rangliste der wichtigsten Faktoren für das Marketing von Arztpraxen. Nun aber hat die Wirkung des Praxispersonals den Faktor Internet von der Spitze verdrängt: Wie die zur Jahreswende veröffentlichte Studie „Ärzte im Zukunftsmarkt Gesundheit“ der Stiftung Gesundheit zeigt, nennen 65,5 Prozent der Ärzte ihre Mitarbeiter als das wichtigste Marketinginstrument.

Die Präsenz im Internet, zu der etwa die eigene Praxis-Homepage sowie die Teilnahme an Internet-Verzeichnissen zählen, hatte im Jahr 2013 mit 83,6 Prozent ihren Höchststand erreicht. Danach verlor sie jedoch an Bedeutung und fiel in der Vorjahresstudie mit 60,4 Prozent auf ihren bislang tiefsten Stand. In der aktuellen Befragung konnte sich der Faktor Internet zwar auf 64,8 Prozent erholen, büßte aber dennoch seine Position als Spitzenreiter ein. Auf Rang drei der wichtigsten Marketing-Maßnahmen liegt mit 40,0 Prozent das äußere Erscheinungsbild der Praxis.

 

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Quelle: zwp-online.info

 

Die Insertion des ersten mittigen Einzelimplantats im zahnlosen Unterkiefer (UK) zur Fixierung einer UK-Versorgung wurde im Jahr 1990 durchgeführt. Seit dieser Zeit sind zu diesem Versorgungskonzept verschiedene Untersuchungen mit heterogenen Studiendesigns und oft geringen Probandenzahlen durchgeführt worden. In einer weltweit ersten multizentrischen randomisierten klinischen Studie wurde jetzt über zwei Jahre der Einfluss des Belastungszeitpunkts auf das Versorgungskonzept des mittigen Einzelimplantats in zahnlosen UK untersucht.

 

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Quelle: 

Evidence suggests that sipping wine may be good for your colon and heart, possibly because of the beverage's abundant and structurally diverse polyphenols. Now researchers report in ACS' Journal of Agricultural and Food Chemistry that wine polyphenols might also be good for your oral health.

Traditionally, some health benefits of polyphenols have been attributed to the fact that these compounds are antioxidants, meaning they likely protect the body from harm caused by free radicals. However, recent work indicates polyphenols might also promote health by actively interacting with bacteria in the gut. That makes sense because plants and fruits produce polyphenols to ward off infection by harmful bacteria and other pathogens. M. Victoria Moreno-Arribas and colleagues wanted to know whether wine and grape polyphenols would also protect teeth and gums, and how this could work on a molecular level.

The researchers checked out the effect of two red wine polyphenols, as well as commercially available grape seed and red wine extracts, on bacteria that stick to teeth and gums and cause dental plaque, cavities and periodontal disease. Working with cells that model gum tissue, they found that the two wine polyphenols in isolation -- caffeic and p-coumaric acids -- were generally better than the total wine extracts at cutting back on the bacteria's ability to stick to the cells. When combined with the Streptococcus dentisani, which is believed to be an oral probiotic, the polyphenols were even better at fending off the pathogenic bacteria. The researchers also showed that metabolites formed when digestion of the polyphenols begins in the mouth might be responsible for some of these effects.

 

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Source:  sciencedaily.com

 

All dentists are trained in endodontics, but that training varies greatly, as does the clinical experience of each dentist. To help ensure that patients receive the best possible care from all practitioners at the highest standards, the American Association of Endodontists (AAE) has developed the Endodontic Competency White Paper to identify the knowledge and skill that should provide a standard for all practitioners who diagnose, develop a treatment plan, and perform endodontic procedures.

This single standard emphasizes endodontic competency and encourages general dentists to undergo additional training, recognize their limitations, and consult with specialists on treatment planning and referral.

“The AAE recognizes that there are great variations in endodontic educational experiences among all dentists. Despite these variations, it is essential that the knowledge base, competence, and clinical performance of endodontic procedure by all practicing dentists meet a certain standard of care,” said AAE president Garry L. Myers, DDS.

“As such, the AAE has developed this comprehensive document outlining the minimum standards any dentist should meet, regardless of education or years of experience, when providing endodontic care to their patients,” Myers said.

 

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Source: dentistrytoday.com

 

GREIFSWALD – Greifswalder Wissenschaftler wollen neues plasmamedizinisch unterstütztes Verfahren zur Reinigung von erkrankten Implantaten entwickeln.
Da immer mehr Menschen durch gute Mundhygiene und moderne Zahnmedizin auch im Alter mehr Zähne besitzen, ist ein künstliches Gebiss seltener notwendig als Zahnersatz. Zahnimplantate sind bei gesunden Nachbarzähnen oder zur Festigung eines künstlichen Gebisses immer häufiger eine beliebte Alternative. Aber auch Implantate müssen wie Zähne sorgfältig gepflegt, regelmäßig kontrolliert und professionell gereinigt werden, sonst kann es auch in diesem Bereich zu gesundheitlichen Problemen kommen. Ein relevantes Problem ist die Periimplantitis, eine Erkrankung, die wie die Parodontitis bei Zähnen häufig bei Implantatträgern auftritt. Diese Erkrankung geht einher mit der Entzündung des Zahnfleisches und dem Rückgang von Knochen im Umfeld eines oder mehrerer Implantate und führt unbehandelt unweigerlich zum Verlust des Implantates. Das Bundesministerium für Bildung und Forschung (BMBF) fördert nun Greifswalder Wissenschaftler, zusammen mit zwei Medizintechnikunternehmen neue Verfahrensweisen zur Reinigung von erkrankten Implantaten zu untersuchen.

Für das BMBF-Verbundprojekt PeriPLas stehen die kommenden drei Jahre insgesamt 1,1 Millionen Euro zur Verfügung. Ziel des Projektes ist es, die Grundlagen für ein sicheres und effektives Verfahren zur Therapie von Periimplantitis für den klinischen Alltag zu entwickeln. Am Verbundprojekt beteiligt sind die DENTSPLY Implants Manufacturing GmbH Mannheim und die Sirona Dental Systems GmbH Bensheim sowie das Leibniz-Institut für Plasmaforschung und Technologie (INP Greifswald e.V.) und das Zentrum für Zahn-, Mund- und Kieferheilkunde der Universitätsmedizin Greifswald.

 

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Quelle: dental-tribune.com

 

LUBBOCK, Texas, U.S.: Fear of injections is not an uncommon condition, and when coupled with a fear of dentists, some people may avoid dental treatment until the absolute last minute. In new research, scientists from Brazil and the U.S. are testing a strategy to increase the effectiveness of topical anesthesia used in dentistry. Their hope is to reduce patient discomfort and ensure the anesthetic can reach further into the mucosa.
For their study, researchers from Texas Tech University (TTU) and the University of Campinas School of Dentistry of Piracicaba developed a small device that contains 57 microneedles. When this device is placed on the gingivae, cheek or any other location of the mouth to be anesthetized, it creates tiny holes through which anesthetic medications, like lidocaine, can penetrate deeper into regions of the oral mucosa.

According to lead researcher Dr. Harvinder Singh Gill, Associate Professor and Whitacre Endowed Chair of Science and Engineering at TTU, conventional methods of topical anesthesia cannot completely assure protection for the patient. This is particularly true when a deep injection is needed to block a nerve. “That situation causes anxiety for patients and dentists alike, and could compromise the treatment outcome,” said Gill.

Although to date the device has only been tested on ten patients, according to Gill, the outcomes have been positive. However, pain reduction of the injection is not the only area of interest. Other objectives of the study are to measure the pain caused by the 700 μm microneedles, as well as to determine the effectiveness of the system in expanding the area of the topical anesthesia.

The research was funded by the São Paulo Research Foundation and carried out under the scope of its São Paulo Researchers in International Collaboration program.

 

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Source: dental-tribune.com

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