Notes on dental porcelain : a practical treatise especially devoted to the interests of the beginner.

  • Gilbert, V. Walter
Date:
1906
Catalogue details

Licence: Public Domain Mark

Credit: Notes on dental porcelain : a practical treatise especially devoted to the interests of the beginner. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    Tlie temperature required to properly glaze this ])orcelain overfires Jenkins's, Ash's Low-Fusing, Ash's High-Fusing to the extent shown; very slightly overglazes The S. S. White Co.'s Medium-Fusing, about glazes Brewster's Enamel, and'increases the glaze of Brewster's Foundation, The S. S. White Co.'s High-Fusing, the Close and Allen Bodies. (The S. S. White Co.'s Medium-Fusing and the Consoli- dated Co.'s High-Fusing have practically the same firing point.) Since this experiment was made the Consolidated Dental Mfg. Co. have marketed a new product which has a glazing point considerably higher than the porcelain first made by them. The glazing point of their present grade of porcelain is higher than the glazing point of Allen's Body. The difference in glazing point between the Consolidated Company's High-Fusing Porcelain and Allen's Body is shown in Fig. 13. The temperature required to properly Fig. 13 glaze the Consolidated Dental Mfg. Co.'s High-Fus- ing Porcelain overfires the Allen Body to the extent shown. The effect which this temperature would have upon the other nine porcelains will be left to the imagination. Fig. 14 illustrates the condition of the cones after the porcelain having the sixth higher firing point (Brewster's Enamel) took the glaze. The tempera-