The Journal of Nihon University School of Dentistry
Online ISSN : 1884-2984
Print ISSN : 0029-0432
ISSN-L : 0029-0432
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Volume 19, Issue 2
Displaying 1-3 of 3 articles from this issue
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  • Central Neurilemmoma of the Jaws
    Report of a Case and Review of the Literature
    Fumio IDE, Yasushi KANI, Kazuo HARA, Michio NAKADA, Motoyasu UCHIYAMA, ...
    1977 Volume 19 Issue 2 Pages 59-65
    Published: 1977
    Released on J-STAGE: March 11, 2011
    DOIhttps://doi.org/10.2334/josnusd1959.19.59
    JOURNAL FREE ACCESS
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  • On the Color Reaction of α-Cholestanol with Certain Sulfonium Salt Solutions prepared from Dimethyl Sulfoxide and Acyl Halides or Related Compounds
    Jiro INDO, Murako NAGANUMA, Kazuo FUJIEDA, Noboru FUJIMOTO, Toshio SHI ...
    1977 Volume 19 Issue 2 Pages 66-69
    Published: 1977
    Released on J-STAGE: March 11, 2011
    DOIhttps://doi.org/10.2334/josnusd1959.19.66
    JOURNAL FREE ACCESS
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    The feasibility studies on a color reaction of α-cholestanol with certain sulfonium salt solutions prepared from DMSO (dimethyl sulfoxide) and acyl halides or related compounds are described. The reactions observed in the series of investigations were measured spectrophotometrically. For the method detecting a-cholestanol, sulfonium solution prepared by reacting POCl3 with DMSO gave satisfactory results whereas AcBr (acetyl bromide) or AcI (acetyl iodide) gave colored substances with DMSO. SOCl2 was also of no use for analytical purposes because of producing corrosive SO2.
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  • A New Construction of Tooth Positioner by LTV Vinyl Silicone Rubber
    Minoru NISHIYAMA, Katsuyuki KAMADA, Satoshi HORIUCHI
    1977 Volume 19 Issue 2 Pages 93-102
    Published: 1977
    Released on J-STAGE: March 11, 2011
    DOIhttps://doi.org/10.2334/josnusd1959.19.93
    JOURNAL FREE ACCESS
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    The present material, having wide function area because of its excellent rubber-like elasticity, can afford to move teeth to a great degree, as compared with the conventional tooth positioner. Besides, its manipulability is preferable. So, wide application can be expected regarding the teeth movement.
    The preparing method by use of this material has merits as follows :
    1) Silicone mixture can easily be filled into mould by disposable syringe.
    2) Manipulability is preferable, silicone mixture having 24-hour pot life at the room temperature.
    3) Curing finishes in a comparatively short time at low temperature.
    4) The set product is tasteless and odorless and shows preferable rubber-like elasticity.
    5) Preferable moulding products can be obtained by use of plaster moulds, without any special mould materials.
    6) Takeout of moulding products is easy, easily separated from the moulds.
    7) The surface of products is very lubricous.
    8) The products having very thin flash even in the split moulding case, have little effect on the height of bite.
    9) Its clinical application proves the effect of treatment to be extremely preferable.
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