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US 2010/0167232 A1Published application
Endodontic device
OwnerAjit Karmakerinventor
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Abstract
An endodontic obturator is provided having a carrier that is fabricated of a material capable of being molded into very fine dimensions and also being easily removable from the root canal.
Claims26
An obturator for use in filling an endodontically prepared root canal comprising:
- a shaft having a proximal end and a distal end;
- and
- filling material disposed on the shaft;
- wherein the shaft is made of a material comprising a thermoplastic matrix material, a filler, and a process aid;
- wherein the thermoplastic matrix material has a molding temperature equal to or greater than about 300° C. and a melting temperature in the range from about 150° C. to about 200° C.;
- and.
- wherein the shaft is dissolvable with a dental solvent.
4 more elements
A method of making an endodontic obturator comprising:
- mixing a thermoplastic matrix material, a filler, and a process aid together to form a mixture, wherein the thermoplastic matrix material has a molding temperature greater than about 300° C. and a melting temperature in the range from about 150° C. to about 200° C.;
- heating the mixture to a temperature in the range of about 285° C. to about 305° C.;
- injection molding the heated mixture at a temperature in the range of about 335° C. to about 390° C. to form a shaft, whereby the shaft has a distal end and a proximal end;
- and
- applying a filling material onto the shaft.
2 more elements
Dependencies are inferred from the claim text.