The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

The present invention is related to the dentistry field. More precisely, the present invention relates to a system for insertion into the root canal for obtaining a root fastening element to support crowns comprising a sleeve of flexible and moldable material, non-adherent to the walls of the root canal, wherein the sleeve comprises a root section and a crown section which are filled with fibers in different arrangements. In addition, the present invention is related to a method for obtaining a fastening element using the system and root fastening element to support crowns.

The present invention is related to the dentistry field. More precisely, the present invention relates to a system for insertion into the root canal for obtaining a root fastening element to support crowns comprising a sleeve of flexible and moldable material, non-adherent to the walls of the root canal, wherein the sleeve comprises a root section and a crown section which are filled with fibers in different arrangements. In addition, the present invention is related to a method for obtaining a fastening element using the system and root fastening element to support crowns.

Fastening element and system for introduction in the canals of teeth to be treated, being used alone or together with a prefabricated intra-radicular pin serving as a root reinforcement or an anchorage of prostheses to be installed on the tooth, said fastening element comprises:a body of parallel or conical shape;a parallel or tapered longitudinal through bore; anda main longitudinal slot running from the upper end to the lower end of the body of the fastening element.

Fastening element and system for introduction in the canals of teeth to be treated, being used alone or together with a prefabricated intra-radicular pin serving as a root reinforcement or an anchorage of prostheses to be installed on the tooth, said fastening element comprises:a body of parallel or conical shape;a parallel or tapered longitudinal through bore; anda main longitudinal slot running from the upper end to the lower end of the body of the fastening element.

This invention relates to a tooth repair system including a method of: drilling an aperture in, e.g., a broken anterior tooth to a predetermined depth; providing a fiber opticpreferably of a diameter of between 0.3 and 1 millimeter and elastic modulus of between 22 GPa and 83 GPawith a length longer than the predetermined depth; placing and adhering the fiber optic within the first aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface. The system also provides a tooth repair pin with the above characteristics, being acid-etched and silane coated with a carrier sleeve.

This invention relates to a tooth repair system including a method of: drilling an aperture in, e.g., a broken anterior tooth to a predetermined depth; providing a fiber opticpreferably of a diameter of between 0.3 and 1 millimeter and elastic modulus of between 22 GPa and 83 GPawith a length longer than the predetermined depth; placing and adhering the fiber optic within the first aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface. The system also provides a tooth repair pin with the above characteristics, being acid-etched and silane coated with a carrier sleeve.

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.

Embodiments of the present invention provide devices (tags with sensors), systems, and methods to determine states (such as, but not limited to, complex impedance) of materials-of-interest, such as tissue-of-interest, implants, and construction members, 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 wireless-tags with sensors are implanted in such materials-of-interest. Using wireless communication and imaging technology, the 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 wireless-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.