Plastic and nonmetallic article shaping or treating: processes – Dental shaping type
Patent
1978-05-04
1980-03-25
Hoag, W. E.
Plastic and nonmetallic article shaping or treating: processes
Dental shaping type
264219, 264222, 264275, 264313, 264317, 264334, 433 6, A61C 1300, B29C 500, B29H 300
Patent
active
041950461
ABSTRACT:
Method for making a tooth positioning and retaining appliance with air holes. The apparatus includes a mold with a cavity having models of the upper and lower teeth arranged so that when an appliance is molded thereby the appliance will have upper and lower archways for receiving upper and lower arches of a person, tooth sockets in the archways arranged in ideal relationship and preselected positions to urge the teeth received thereby into the preselected positions of the sockets. The mold additionally includes air hole or airway forming means extending across the models of the teeth in the mold and being insertable into the mold prior to the molding operation and thereafter removable from the mold with the molded appliance. The air hole forming means is easily separable from the appliance to ultimately define the air holes between the archways and between the labial and lingual sides of the appliance. The method of making the air holes concerns the handling of the mold and the air hole forming means.
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Hoag W. E.
Zickert Lloyd L.
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