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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 11 (1984), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Mandibular movement during lateral articulatory movements was studied in young subjects with no apparent dental disease or malocclusion. A closed circuit television movement detector was used. Signals of each vector of movement were combined in pairs to provide envelopes of movement in three planes, mutually at right angles. Symmetry of movement was not as common as expected and sudden small changes in direction were frequently observed. Maximum displacement in each vector of movement was not always coincident.It is postulated that treatment factors, such as simple restoration of teeth, are initiating factors which cause variation in mandibular movement from the normal.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 10 (1983), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A closed circuit television movement detector was used to study mandibular movement in the form of tooth tapping, in subjects with no apparent dental disease or malocclusion. The velocity and form of various phases of movement was studied, in the transverse, sagittal and coronal planes, from measurements made on u.v. charts and X-Y recordings. It was shown that closing movements were more direct and faster than opening movements; that initial contact on closing is in a well-defined contact area, followed by a sliding of cusps over each other to a final centric position and that the closing path of the mandible in tapping movements is in the form of a smooth curve showing simple axis rotation through distances normally greater than those accepted clinically. It was also shown that microphone signals can be detected at times other than when normally expected, indicating displacement with tooth contact, at times other than at the fully intercuspated position.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 541-541 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent communication1 details were given of a method for the quantitative estimation of radioactive isotopes in histological sections. A similar piece of apparatus was made by me some time ago for investigating the distribution of phosphorus-32 in sections of human enamel. ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 163 (1949), S. 573-573 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A DETAILED study of the hydrolysates of human dentine has been carried out here during the last twelve months, using the paper chromatogram technique. The protein studies on a large series of hydrolysates of sound dentine reveal the consistent absence of either cystine or methionine. ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 858-858 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PREVIOUS workers1–3 have described methods for the construction of troughs for use in chromatography. In this laboratory, a simple method of making troughs has been evolved which does not require any special apparatus or skill. The finished trough, owing to the uneven edge of the ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 695-696 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Using a paper chromatographic method3, it has been demonstrated that a transaminase occurs in the human tooth in dentine and pulp tissue. This enzyme catalyses the reaction : L() aspartate + a-ketoglutarate v 1(.) glutamate + oxalacetate ... (1) Weaker activity was also demonstrated for the ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 211 (1966), S. 627-627 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is considered that this observation is important in relation to the testing of the material for compliance with the appropriate standards, and it is suggested that the temperatures at which testing is now done may require review. This work was supported in part by the National Health and ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 195 (1962), S. 508-509 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] With the observation that tetracycline drugs are incorporated in tissues which are calcifying at the time of its administration2, another means of studying these phenomena is now available. The tetracycline is bound in the calcifying zone of the dentine and with ultra-violet light fluoresces bright ...
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 10 (1972), S. 263-266 
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Il a été établi que le centre du palais dur ne change pas après la perte de la dent et qu'il peut être utilisé comme une région de référence de laquelle on peut mesurer les changements dans l'os alvéolaire. Dans ce but, on a construit un instrument mécanique, mais bien que donnant des résultats reproductibles, la technique était ennuyeuse et on perdait beaucoup de temps. L'outillage actuel permet de produire des tracés agrandis de moulages dentaires le long de n'importe quel contour prédéterminé sur un enregistreurXY et d'évaluer la perte d'os par des changements dans la hauteur et l'épaisseur du bard de l'alvéole. L'instrument peut être utilisé pour examiner dans divers stades pendant la fabrication, le changement de la forme des bases en métal ou en plastique du dentier.
    Abstract: Zusammenfassung Es ist festgestellt worden, dass der Mittelpunkt des Vordergaumens sich nicht nach Zahnverlust ändert und als Bezugsfläche benutzt werden kann, von der Änderungen in dem Zahnknochen gemessen werden können. Es ist für diesen Zweck ein mechanisches Instrument hergestellt worden, aber das Verfahren war umständlich und langwierig, obwohl es reproduzierbare Resultate ergab. Das gegenwärtige Gerät ermöglicht die Herstellung vergrösserter Pläne von Zahngebissen entlang jeder vorbestimmten Kontur auf einemXY Schreiber und die Auswertung von Knochenverlust durch Änderungen in der Höhe und Dicke des Zahndamms. Das Gerät kann zur Prüfung von Änderungen der Form von Metall—oder Plastik Zahnplatten in verschiedenen Stadien der Herstellung benutzt werden.
    Notes: Abstract It has been established that the centre of the hard palate does not change after tooth loss and can be used as a reference area from which changes in the alveolar bone may be measured. A mechanical instrument was made for this purpose but, although giving reproducible results, the technique was tedious and time-consuming. The present equipment enables enlarged tracings to be produced of dental casts along any predetermined contours on anXY recorder and bone loss evaluated by changes in the height and thickness of the alveolar ridge. The instrument may be used for examining the change in shape of either metal or plastic denture bases at various stages during fabrication.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 19 (1981), S. 789-791 
    ISSN: 1741-0444
    Keywords: Closed-circuit television ; E.M.G. tooth contact ; Mandibular displacement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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