56 results about "Dentistry prosthetic" patented technology

A support for sustaining and/or forming a dental prosthesis, comprises an axle, an anchoring part which can be anchored in a bone or a master model, and a head part which protrudes out of said bone or master mode. The head part has intermediate spaces distributed around the axis, i.e., several first intermediate spaces forming a divided circle, and a second, wider and/or deeper intermediate space. A cap can be fixed to the support. The cap has at least one projecting part for engaging in an intermediate space and, optionally, can be configured for fixing in several different rotational positions or a single rotational position, the support allowing exact positioning. The cap can also be produced without a projecting part of the type mentioned. The same support can be used to form different types of dental prostheses.

An implantable dental screw comprising (i) an elongated body portion, which comprises a distal end and an external surface, which is axially threaded, (ii) a top portion, which is connected to the body portion at an end opposite to the distal end, and which comprises a proximal end, which comprises a seat that engages a tool for securing the screw into an osseotomy site and a chamfer that engages a dental prosthesis, and an external surface, (iii) at least one core channel disposed longitudinally within the screw and open at the proximal end and, optionally, at the distal end, and (iv) a plurality of delivery channels disposed within the body portion, each of which connects a core channel with the exterior of the screw; and a method of implanting the dental screw into a patient.

Endosseous dental implant of the type involving a threaded pin which is screwed into the bone cavity and is provided with a hole applied to the part of the implant emerging from the bone, housing a proper device protruding from the dental prosthesis in order to anchor the prosthesis to the threaded pin; onto the top part of the threaded pin exceeding the bone a removable hemispheric cup is applied so that when the threaded pin is in final position, the cup presses onto the surrounding gengiva; the cup being equipped with anchoring devices which firmly connect it to the pin, yet allowing it to be unscrewed from the pin in order to be replaced by the dental prosthesis that will fit the place occupied by the cup in the gengiva around the threaded pin.

The invention relates to a dental implant comprising a biocompatible porous solid body which is equipped with at least one receiving bore (8) for a part that is used to connect a dental prosthesis. The invention is characterised in that the biocompatible porous solid body (2) is made from one material having a trabecular structure, such that the exterior of the porous solid body and the interior thereof are communicated with one another.

The present invention is a dental implant for affixing a dental prosthesis (mobile or fixed) to bone tissue to provide a stable integration of the implant with the bone tissue. The implant uses a multifaceted thread, which improves the distribution of loads from the implant to the bone tissue. The multifaceted thread may be of a tapered height adjacent an inserted end, such that the thread forms a self-threading implant, reducing the likelihood of tissue damage resultant from the use of multiple tools to form a thread in bone tissue prior to the insertion of the implant.

The present invention relates to a device for attaching a dental model to a variety of articulators for reproducing oral motions as a sagittal plane of a patient's organism and the left and right side points having the same height relative to the sagittal plane are found to mount the dental model at the articulators in a range for reproducing fatigue oral motions thereon, thereby helping the fabrication of the dental prosthesis inclusive of clinical treatment planning according to the extrusion and intrusion causes, the reasonable articulation re-construction in a dental laboratory process, and artificial teeth arrangements.

The invention provides a tooth adhesive system based on a new hydrophobic adhesion concept. The tooth adhesive system comprises a single-component adhesive and a bi-component adhesive, wherein the necessary components of the single-component adhesive and the bi-component adhesive are a hydrophobization reagent, solvents, hydrophobic polymeric monomers and photopolymerization initiators. The system is characterized in that hydrophobic modification is firstly carried out on tooth surfaces in the adhering process, so that the tooth surfaces are converted from hydrophilic surfaces to hydrophobic surfaces. The system has the beneficial effects that the polymeric monomers in the adhesives can fully infiltrate demineralized dentin matrices, so that adhesive monomers fully infiltrate the demineralized dentin matrices, and a uniform and stable mixed layer is finally formed after in-situ polymerization, thus obviously improving the immediate adhesion strength, improving the long-term adhesion strength of dentin by several times, obviously reducing the nano leakage rate of the mixed layer and radically improving the durability of adhesion and restoration; the system has the effect of obviously improving the immediate and long-term adhesion strength of dentin and enamel and the durability of tooth prosthesis adhesion and has obvious dentin immediate sealing effects and good dentin desensitizing effects.

A dental prosthesis having a prosthesis base and a set of teeth, namely a full set of teeth or a partial set of teeth, is provided, wherein the prosthesis base comprises at least one dental recess for receiving the set of teeth, and wherein the set of teeth is glued into the at least one dental recess by an adhesive. In the dental recess and/or in or at the set of teeth an adhesive channel is configured which extends along the at least one dental recess or the dental arch in its main direction of extension. It starts at an adhesive filling opening whose configuration is adapted to a filling element.

The present invention relates to a dental prosthesis, and more particularly, to a screw-engagement type dental prosthesis which enables non-preparation of the natural tooth because it is manufactured by division into two pieces or three pieces, which can be simply installed, and in which the occlusal pressure can be uniformly dispersed. Also, the present invention relates to a method of casting a screw-engagement type dental prosthesis by using a bolt made of carbon or ceramics. Furthermore, a keeper and a body are engaged with each other via a bolt in a state where thin and semi-conical maintaining portions formed on inner inclination surfaces of abutment teeth of both sides with a small preparation are accurately engaged with keys formed on inner inclination surfaces of the keeper and the body in correspondence to the maintaining portions.

The invention relates to a bionic enamel zirconia ceramic material block, a dental prosthesis and a preparation method. The bionic enamel zirconia ceramic material block comprises a functional wearing layer; the functional wearing layer comprises zirconia and a stabilizer used for stabilizing the zirconia; the zirconia is formed by zirconia nano crystallites; intragranular defects are formed in the nano crystallites; the outer surface of the functional wearing layer is used for forming an occlusal surface; and the functional wearing layer is used for simulating the straight enamel rod layer of natural tooth enamel. According to the technical scheme disclosed by the invention, the situation that the dental prosthesis excessively abrades jaw teeth can be relieved; the obtained zirconia ceramic material block has the advantages of high strength, low hardness and low elastic modulus; the probability of breaking of the bionic enamel zirconia ceramic material block and the dental prosthesis is reduced; the service lives of the tooth prosthesis and the jaw teeth are prolonged; in addition, the appearance of the bionic enamel zirconia ceramic material block and the appearance of the dental prosthesis are very similar to the appearance of natural teeth; and the bionic enamel zirconia ceramic material block and the dental prosthesis have excellent light transmission, transparency and polishing degree.

The invention relates to a dental implant, which comprises a dental prosthesis and an implant, the implant is fixed in a gum, the dental prosthesis is connected to the implant, the implant comprises an implant part and a lifting boss, the lifting boss and the implant part are connected to form a whole, the lifting boss is located at the top of the implant part, and the lifting boss is located at the bottom of the implant part. The dental prosthesis is connected to the lifting boss, a structural gap exists between the dental prosthesis and the lifting boss, the implant is fixed in a gum, and the structural gap is located outside the gum.

This invention concerns a manufacturing method of a dental prosthesis, with specific reference to single-tooth prostheses. In particular, this invention deals with a manufacturing method a dental prosthesis or part thereof, that includes a milling step of a block (1) made of a material suitable for dental uses, where the aforementioned block (1) is secured to a connection device (L) with a dental implant.

A multi-component dental implant system designed to improve oral hygiene. The dental implant system may comprise an implant body configured to be insertable into at least a portion of an individual's mouth, a primary or first abutment, a dental prosthesis engagement member, and a housing assembly. In use, the first abutment is designed to engage with and secure to the dental prosthesis engagement member. The housing is configured to secure to or cover the dental prosthesis engagement member. The dental implant system allows an individual to remove one or more components without the aid of any special tools or instruments.

In a connecting arrangement between a tooth prosthesis crown and a head of an implant post between which an intermediate element is arranged engaging both the crown and the implant post head, the intermediate element consist of a spring elastic metal material with inner circumferential segments which elastically project into openings formed in an upper region of the implant post head and outer circumferential segments which elastically project into openings formed in the crown.

The invention discloses a dental crown clamp. The dental crown clamp comprises a first clamping part and a second clamping part; the first clamping part is provided with a first force application part for a user to apply force; the second clamping part is movably connected with the first clamping part, and the second clamping part is provided with a second force application part for the user to apply force; the first clamping part is provided with an interlayer structure; the second clamping part is inserted into the interlayer structure; the first clamping part is provided with a first clamping structure; the second clamping part is provided with a second clamping structure; and the first clamping structure and the second clamping structure move oppositely to clamp and fix a dental restoration body. The dental restoration body is placed between the first clamping structure and the second clamping structure, a medical worker applies force to the dental crown clamp with hands so that the first clamping structure and the second clamping structure can move oppositely, the dental restoration body is clamped and fixed, and the dental restoration body can be ground conveniently. The dental crown clamp can be widely applied to the technical field of oral medical instruments.