A dental prosthesis is provided, manufactured from a monobloc or multibloc prosthesis blank (10), which is composed of a gum-colored material (14) and a tooth-colored material (12), which materials (12, 14) are bonded to each other by bonding, polymerization and/or one-piece manufacture. The boundary surface (16) between the materials is wave-shaped comprising alternating grooves (22) and ribs (24) in the course of the dental arch, and radial in an oral-vestibular direction in the region of the anterior teeth (33) to be created. The boundary surface (16), at least in the region of the molars (26)—again as viewed in the oral vestibular direction—has parallel grooves (22) and ribs (24) forming troughs and crests of the waveform, or grooves (22) and ribs (24) such that they extend in deviation from parallel by at most 10 degrees, in particular at most 5 degrees, at least in the region of the molars (26).

A method of manufacturing an article comprising: (a) performing an additive manufacturing process to firm an article in an initial state, the article comprising mounting features and being supported during the additive manufacturing process by support structures; and (b) performing a second manufacturing process to transform the article into a second state, which second manufacturing process is a subtractive process comprising: (i) mounting, via the mounting features formed during the additive manufacturing process, the article in a holding device of a machine for operating on the article, with the support structures or at least remnants thereof remaining on the article, and (ii) with the article so mounted in the holding device, processing at least one feature on a surface of the article on which the support structures were provided to remove material on the at least one feature provided by the support structures.

A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center.

A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center.

A system for generating missing data for 3D models of intraoral structures of a patient. The system may include a hand-held intraoral scanner and a computer having instructions that the system to scan the intraoral structure of a patient to generate first 3D data of the surface of a prepared tooth, generate a 3D virtual model of the prepared tooth based on the first 3D data, determine the 3D virtual model is missing a surface associated with the prepared, generate second 3D data approximating the surface that is determined to be missing from the 3D virtual model intraoral structure that is missing, and combine the second 3D data with the 3D virtual model such that the 3D virtual model includes the approximated surface, wherein the approximated surface approximates the prepared tooth associated with the surface determined to be missing from the 3D virtual model.

A dental prosthesis is provided, manufactured from a monobloc or multibloc prosthesis blank (10), which is composed of a gum-colored material (14) and a tooth-colored material (12), which materials (12, 14) are bonded to each other by bonding, polymerization and/or one-piece manufacture. The boundary surface (16) between the materials is wave-shaped comprising alternating grooves (22) and ribs (24) in the course of the dental arch, and radial in an oral-vestibular direction in the region of the anterior teeth (33) to be created. The boundary surface (16), at least in the region of the molars (26)—again as viewed in the oral vestibular direction—has parallel grooves (22) and ribs (24) forming troughs and crests of the waveform, or grooves (22) and ribs (24) such that they extend in deviation from parallel by at most 10 degrees, in particular at most 5 degrees, at least in the region of the molars (26).

A technique for fabricating a surgical splint for use in correcting a dental condition of a patient. The technique involves obtaining a three-dimensional digital model of lower and upper arch dentitions of the patient having the dental condition. Relative positions of the lower and upper arch dentitions are adjusted with respect to each other in the three-dimensional digital model using a computing device. An electronic model of a splint is generated based on the adjusted relative positions of the lower and upper arch dentitions. A splint is then generated in a physical form from the electronic model of the splint.

A dental overlay is prepared for use with a cutting tool in preparing a tooth to be prepared for restoration. A prepared tooth is simulated based on three-dimensional data acquired from a dentition to define tooth structure to be removed by a cutting tool from the tooth to be prepared. A dental overlay configured for placement onto one or both of the tooth to be prepared and a neighboring tooth is produced. The overlay includes an occlusal portion and buccal and lingual sides extending from the occlusal portion. The overlay has a first guiding groove configured for contact with the cutting tool so as to limit movements to be followed by the cutting tool to predetermined movements for removing a portion of the defined tooth structure to be removed. A first portion of the first guiding groove extends through the buccal or lingual side of the overlay.

A device includes a connecting end and a working end. Device has an internal fluid passageway and a bend area. The fluid passageway has a discharge opening or hole, which opening is positioned or located substantially away from the bend area, such that the discharge opening and upstream portions of the passageway will remain unaffected, substantially unaffected, or selectively affected by any deformation thereof due to the bending procedures employed to make the other portions of the tool, such as those conventionally involved in fabricating the bend area.

Described is a supporting base (1) for medical instruments (2), comprising a supporting layer (3) having a relative visible front surface (4) and a relative rear surface (5) opposite the visible surface (4); The supporting layer (3) also has a plurality of holes (6) extending from the front surface (4) towards the rear surface (5); More specifically, the supporting layer has a gripping portion (9) positioned on the rear surface (5) and irreversibly joined to the supporting layer (3) to form a single body with said supporting layer (3). The supporting base (1) has at least one opening (17) for inserting, in use, a medical instrument (2), positioned at each hole (6) and extending from the front surface (4) towards the rear surface (5) and through the gripping portion (9).