Dental Filling Material
AssigneePentron Clinical Technologies, LLC
InventorsWeitao Jia, Ajit Karmaker
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Abstract
A dental filling material comprising an inner core and outer layer of material disposed and surrounding the inner core, both the inner core and outer layer of material each containing a thermoplastic polymer. The thermoplastic polymer may be biodegradable. A bioactive substance may also be included in the filling material. The thermoplastic polymer acts as a matrix for the bioactive substance. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.
Claims29
A filling material for root canals comprising:
- an inner core section comprising a first thermoplastic polymer matrix material;
- an outer layer of material disposed on and surrounding the inner core section;
- wherein the outer layer of material comprises a second thermoplastic polymer matrix material;
- wherein the second thermoplastic polymeric matrix material comprises a biodegradable thermoplastic polymer matrix and an adhesive.
A method of filling an endodontically prepared root canal in a tooth employing an obturator in the form of an inner core section comprising a first thermoplastic polymer matrix material, an outer layer of material disposed on and surrounding the inner core section, wherein the outer layer of material comprises a second thermoplastic polymer matrix material, wherein the second thermoplastic polymeric matrix material comprises a biodegradable thermoplastic polymer matrix and an adhesive, the obturator having an elongated body with a distal end and a proximal end, comprising the steps of:
- inserting a sealant into the root canal;
- inserting the obturator into the root canal so that the distal end at least substantially reaches the root canal apical end;
- and
- severing the part of the obturator that extends above the coronal end of the root canal.
Dependencies are inferred from the claim text.