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  • 1
    Electronic Resource
    Electronic Resource
    Experimental comparative study of various mouthguards (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 15 (1999), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— The aim of this study was to evaluate the mechanical and physical properties of several standard size commercially available mouthguards. For the purpose of objective testing, a special study model, which the various gum shield devices could be fitted onto, was developed to record tooth deflection caused by impact forces induced by a pendulum ram impact testing machine. The data measured on teeth provided with various gum shield devices were correlated with those of unprotected teeth; this enabled the individual cushioning effects of the respective devices and their specific force conduction to be evaluated. Using mouthguards considerably diminishes the deflection of the teeth subjected to stress in comparison with the row of unprotected teeth. In addition, force is transmitted to the adjacent teeth all the way to the distal regions of the row of teeth. The individual cushioning effects are directly correlated to the thickness of the material; the force distribution is determined by the rigidity of the gum shield device. The devices examined showed considerable differences with regard to force distribution and dimensioning. The study showed that this was due to the thickness of the materials, the manufacturing process and the composition of the materials of the devices examined. In comparison to laboratory-produced devices of similar material thickness, the devices that were designed to be fitted by the user achieved significantly poorer results as regards both cushioning properties and dissipation of exerted forces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1999.tb00794.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neue klinische Anwendungsmöglichkeiten des Jasper Jumpers (1996)
    Springer
    Journal of orofacial orthopedics 57 (1996), S. 366-371 
    Details
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary This article describes the use of the Jasper Jumper in the treatment of class III anomalies, both theoretically and with a case report. Contrary to its use in class II anomalies, the Jasper Jumper is fixed to the 6-year-molars in the lower jaw and in the canine area in the upper jaw. This results in a continuously working mechanism — independent of co-operation on the part of the patient.
    Notes: Zusammenfassung In der vorliegenden Arbeit wird der Einsatz des Jasper Jumpers bei Klasse-III-Anomalien theoretisch und anhand eines Fallberichts dargestellt. Der Jasper Jumper wird dann in umgekehrter Analogie zum Einsatz bei Klasse-II-Anomalien im Unterkiefer an den Sechsjahrmolaren und im Oberkiefer im Eckzahnbereich fixiert. Man erreicht dadurch eine permanent einwirkende intermaxilläre Klasse-III-Mechanik — unabhängig von der Mitarbeit des Patienten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02215674
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Die Störanfälligkeit des Zahndurchbruchs (1996)
    Springer
    Journal of orofacial orthopedics 57 (1996), S. 238-245 
    Details
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The genetically determined impairment of tooth eruption in 4 generations is analysed on the basis of an examination of 1 family, and the variability of the characteristic “tooth infraposition” is described. Starting with a 72-year-old female patient with 1 unerupted incisor, infrapositions of primary and permanent teeth in the descendants were diagnosed. We assume hereditary susceptibility resulting from a multifactorial genetic system to be the cause.
    Notes: Zusammenfassung Anhand einer Familienuntersuchung wird die genetisch bedingte Störanfälligkeit des Zahndurchbruchs in der Nachfolgegeneration analysiert und die Variabilität des Merkmals „Zahninfraposition“ geschildert. Ausgehend von einer 72jährigen Patientin mit einem retinierten Schneidezahn, wurden bei den Nachkommen unter anderem Infrapositionen von Milch- und bleibenden Zähnen diagnostiziert. Als Ursache wird eine vererbte Störanfälligkeit vermutet, bedingt durch ein multifaktorielles genetisches System.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02190236
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    Paper (German National Licenses)
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