MULTI-LAYERED DENTAL APPLIANCE

A dental appliance includes a polymeric shell with a plurality of cavities for receiving one or more teeth, including an interior region with a core layer of a first thermoplastic polymer A with a thermal transition temperature of about 70° C. to about 140° C. in and a flexural modulus greater than...

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Bibliographic Details
Main Authors Yu, Ta-Hua, Hebrink, Timothy J, Geisler, Karl J.L
Format Patent
LanguageEnglish
Published 28.07.2022
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MEDICAL OR VETERINARY SCIENCE
PERFORMING OPERATIONS
TRANSPORTING
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Summary:A dental appliance includes a polymeric shell with a plurality of cavities for receiving one or more teeth, including an interior region with a core layer of a first thermoplastic polymer A with a thermal transition temperature of about 70° C. to about 140° C. in and a flexural modulus greater than about 1.3 GPa, and first and second interior layers of a second thermoplastic polymer B with a glass transition temperature of less than about 0° C. and a flexural modulus less than about 1 GPa; and first and second exterior layers of a third thermoplastic polymer C with a thermal transition temperature of about 70° C. to about 140° C. and a flexural modulus greater than about 1.3 GPa. Interfacial adhesion between any of the adjacent layers in the polymeric shell is greater than about 150 grams per inch.
Bibliography:Application Number: US202017607091