摘要:
A superstructure for oral, dental and maxillofacial prostheses, of the type consisting of a bridge with at least one anchoring dental element (2,3) and at least one intermediate dental element (8), wherein said intermediate dental element (8) has an internal emptying of material, suitable for forming a closed cavity (9) inside the same element (8). With respect to the known technology in the field, the superstructure of the invention offers the advantage of being lighter, more comfortable and less bothersome for the user, thanks to the substantial reduction in weight due to the smaller quantities of material used for producing it.
摘要:
A device for supporting, on a respective support (5, 22, 27), at least one preformed element (1) of single superstructures (2) for dental prostheses, provided with a threaded ferrule (10) having a hole (11) and an engagement edge (12) outside the preformed element (1), wherein said support has a base (6, 18) provided with a threaded portion (7) suitable for cooperating with said ferrule (10). With respect to the known supporting devices, that forming object of the present invention offers the advantage of not requiring the previous formation of a hole for the insertion channel of the screw in the preformed element. Superstructures can therefore be prepared, in which the channel for the anchoring screw to the implant is produced according to the design specifications and consequently with a variable angulation, in relation to the final position of said channel in the mouth, as established by the doctor. The visible exposure of the closing material of the above-mentioned channel can therefore be avoided, with a considerable aesthetic benefit.
摘要:
A temporary anchoring device between cylinders and spacers of position keys for dental implants composed of cylinders (1) and spacers (2) equipped with means suitable for temporarily holding said cylinders (1) and the mentioned spacers (2) in their relative position, corresponding to that of the dental implant, in which said means consist of a first ring (4) destined for being engaged on the body of said cylinder (1), in addition to a second ring (5) which is engaged on a first spacer (2) of the position key and joined to the previous ring (4) by means of a bar (6). Compared to the systems used in the known art, the device of the invention offers the advantage of being pre-assembled on the spacer, by means of a simple and rapid operation effected outside the patient's mouth. The device of the invention is then also fixed to the respective cylinder situated in the oral cavity, with operations equally as rapid and simple, thus obtaining a temporary anchorage which holds the cylinders of the implant and the spacers forming the position key, in the relative correct position.
摘要:
A process for producing a superstructure (5) for dental prostheses, obtained with a stratification method, the process comprising the previous creation of a preformed interface (6) and the subsequent construction, by the stratification of a material (11) on the same interface (6), of an anatomical part (2) of said superstructure (5). With respect to known production methods, the process of the invention offers the advantage of allowing a finished superstructure, i.e. complete with an interface whose geometry has the maximum precision required for an effective coupling with an implant, to be obtained directly in the stratification phase.
摘要:
An insert for a dental prosthesis screwed onto an implant, in particular of the type comprising a superstructure (2) and an implant (3) integrated in the bone (4), which are reciprocally joined by means of a screw (5,25). The insert of the invention consists, in particular, of an element made of a damping material interposed between the coupling surface (6,7) of the superstructure (2) and implant (3). Thanks to the insert of the invention, a dental prosthesis screwed onto an implant is obtained, which reproduces the natural anchoring state of the tooth to the bone, so that the stress peaks on the superstructure are damped before being discharged onto the implant and consequently also onto the bone. The insert of the invention also offers the advantage of sealing the contact area between the superstructure and the implant, thus preventing dangerous bacterial infiltrations.
摘要:
A supporting device (10) of preformed elements for producing single superstructures of dental prostheses, of the type consisting of a supporting body comprising an interface (8) for supporting a preformed element (2) with respect to the same device. According to the invention, said supporting body has a stem (17, 24) provided with an element (20, 26) housed in correspondence with said stem and which has a surface (22, 27) for supporting the preformed element (2) with respect to the same supporting body, wherein said supporting surface (22, 27) has larger dimensions than those of the above-mentioned interface (8). With respect to the known embodiments in the field, the device of the invention offers the advantage of also resisting side milling loads of the preformed element, which can therefore also withstand the side loads necessary for producing undercuts and processings below the emergency profile. Thanks to the device of the invention, in fact, the loads generated by side-oriented processings with respect to the preformed element are converted to axial or vertical forces, which even small-dimensioned screws are able to resist.
摘要:
A position localizer device for oral, dental and maxillofacial prostheses, consisting of a single body with a longitudinal axis (4) and comprising a portion consisting of a body (3) in the form of an irregular polyhedron, on whose upper polygonal side (6) a portion is fixed in the form of a spherical body (2) and on whose lower polygonal side there is a connection element(18) for coupling with the interface of the respective element to be positioned. The polyhedric body (3), the spherical body (2) and the mentioned connection (18) of the device of the invention are positioned coaxial with said axis (4) of the body of the same localizer device (1). With respect to the known art considered above, the localizer of the invention offers the advantage of obtaining a perfect adherence between the surfaces scanned and the surfaces of the device itself and the perfect coupling of the scanned surfaces with the mathematical model present in the database.