A device for obturating the root canals of teeth, which includes an elongate rod having a lower section, a central section and an upper section, such that the lower section is inserted into the bottom or end of the root canal of the tooth, the central section is disposed along the length of the root canal, and the upper section is outside of the root canal of the tooth. The lower section is made of titanium and with a geometry suitable for incrustation in the area of the bottom or end of the root canal of the tooth, and the central section is made of an alloy of titanium and nickel that is biocompatible and flexible for the adaptation and positioning of the central section along the root canal, and incorporates a coating of flexible material that is biocompatible with the inside of the root canal.

A method for removing a dental post from a tooth. The method includes (a) removing securing materials from around the dental post, (b) texturing the dental post to form a prepared dental post, (c) providing a dental post removal device with a hollow tubular structure and a fulcrum, (d) filling the hollow tubular structure with dental cement, (e) placing the dental cement-filled tubular structure over the prepared dental post, inserting a fluted file through the filled tubular structure and engaging file flutes between the prepared dental post and the wall of the tubular device and allowing the material to adhere together the tubular structure, the file, and dental post, and (f) applying a force on the fulcrum to remove the hollow tubular structure, the attached file and dental post from the tooth.

The present disclosure relates to a damping dental post key configured to implant a dental root post for restoration of a tooth. The dental post key includes a body for handling and a post carrier having a key shape with respect to a head portion of the dental root post. During implantation of the dental post, rotation of the body compresses a set of springs in contact with the post carrier reducing a reaction force to a tooth root. In this way a limited force will be applied and a root fracture can be prevented. Further, the dental post key can be configured to have a fixed movement in a counterclockwise direction to remove the dental post and a free quarter-cycle movement with effort in a clockwise direction.

The present disclosure relates to a damping dental post key configured to implant a dental root post for restoration of a tooth. The dental post key includes a body for handling and a post carrier having a key shape with respect to a head portion of the dental root post. During implantation of the dental post, rotation of the body compresses a set of springs in contact with the post carrier reducing a reaction force to a tooth root. In this way a limited force will be applied and a root fracture can be prevented. Further, the dental post key can be configured to have a fixed movement in a counterclockwise direction to remove the dental post and a free quarter-cycle movement with effort in a clockwise direction.

The present disclosure relates to a dental root post for restoration of a tooth, and a damping dental post key for implanting the dental root post. The dental post is configured to give enhanced retention to a tooth core as well as for final restoration materials and dental end caps and crowns. The dental post can be divided into a head portion configured to reconstruct the tooth core and rotate the dental root post during insertion and a root portion having different features depending on a depth required for the restoration. The root portion can have a set of grooves, a set of threads and a shape configured to distribute masticatory loading stress during mastication.

The present disclosure relates to a dental root post for restoration of a tooth, and a damping dental post key for implanting the dental root post. The dental post is configured to give enhanced retention to a tooth core as well as for final restoration materials and dental end caps and crowns. The dental post can be divided into a head portion configured to reconstruct the tooth core and rotate the dental root post during insertion and a root portion having different features depending on a depth required for the restoration. The root portion can have a set of grooves, a set of threads and a shape configured to distribute masticatory loading stress during mastication.

A woven fiber optics dental post includes a post body and a woven fiber component. The post body includes a post face, an irradiation receiving portion, and a bottom. The woven fiber component is provided within the post body. The woven fiber component is formed by intertwining a plurality of fiber optics members. A light receiving end portion and a light emitting end portion are respectively composed of a plurality of light receiving ends and light emitting ends of the fiber optics members. The light receiving end portion is appeared on the irradiation receiving portion of the post body for having the woven fiber component receiving a light irradiated at the irradiation receiving portion, and the light emitting end portion is appeared on the post face and/or the bottom of the post body for having the light received by the woven fiber component transmitting to the light emitting end portion to be emitted out of the post face and/or the bottom. Thereby the structure strength and the intensity and the uniformity of the light emitted from the woven fiber optics dental post can be enhanced.

A woven fiber optics dental post includes a post body and a woven fiber component. The post body includes a post face, an irradiation receiving portion, and a bottom. The woven fiber component is provided within the post body. The woven fiber component is formed by intertwining a plurality of fiber optics members. A light receiving end portion and a light emitting end portion are respectively composed of a plurality of light receiving ends and light emitting ends of the fiber optics members. The light receiving end portion is appeared on the irradiation receiving portion of the post body for having the woven fiber component receiving a light irradiated at the irradiation receiving portion, and the light emitting end portion is appeared on the post face and/or the bottom of the post body for having the light received by the woven fiber component transmitting to the light emitting end portion to be emitted out of the post face and/or the bottom. Thereby the structure strength and the intensity and the uniformity of the light emitted from the woven fiber optics dental post can be enhanced.

Embodiments of the present invention provide devices (tags), systems, and methods to determine structural integrity and other states of materials-of-interest, such as dental fillings, implants, and root canal posts, to name a few, in a non-invasive and contactless way; and using comparatively safe and/or low energy electromagnetic radiation, such as radio waves. Negligible-sized backscatter-tags with sensors are implanted in such materials-of-interest. Using backscatter imaging technology, the structural integrity and other states of the materials-of-interest may be monitored; which may allow non-invasive and contactless detection of problems such as cracking, bending, excessive pressure, improper temperature, and/or the like. Additionally, initially unknown locations of the implanted negligible-sized backscatter-tags with sensors may be readily determined upon a given scanning (reading) session; and thus mapped to provide an effective image of the material-of-interest.

Embodiments of the present invention provide devices (tags), systems, and methods to determine structural integrity and other states of materials-of-interest, such as dental fillings, implants, and root canal posts, to name a few, in a non-invasive and contactless way; and using comparatively safe and/or low energy electromagnetic radiation, such as radio waves. Negligible-sized backscatter-tags with sensors are implanted in such materials-of-interest. Using backscatter imaging technology, the structural integrity and other states of the materials-of-interest may be monitored; which may allow non-invasive and contactless detection of problems such as cracking, bending, excessive pressure, improper temperature, and/or the like. Additionally, initially unknown locations of the implanted negligible-sized backscatter-tags with sensors may be readily determined upon a given scanning (reading) session; and thus mapped to provide an effective image of the material-of-interest.