Plastic and nonmetallic article shaping or treating: processes – Dental shaping type
Patent
1979-04-09
1980-12-30
Hoag, W. E.
Plastic and nonmetallic article shaping or treating: processes
Dental shaping type
264138, 264249, 264274, 264278, B29C 500, B29D 300
Patent
active
042422922
ABSTRACT:
A novel method for embedding a button into a dental cast by forming a cavity and pouring a cold setting material such as a plastic into which a screw is inserted while the poured button is in the fluid form before final setting. The screw has a notch in at least one thread so that the molding material forms an interlock or detent in the notch, which is sheared upon removal of the screw.
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Delmonte, Technology of Adhesives, Reinhold, N. Y. (1947), pp. 477 & 478.
Katz, Adhesive Materials, Foster Pub. Co., Long Beach, Ca. (1964), p. 87.
Hay Louis E.
Mercer Roger W.
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