48 results about "Dental post" patented technology

A dental post comprising a rod fabricated of fiber-reinforced composite material. The rod comprises a plurality of frustoconical sections arranged coaxially along the longitudinal axis of the rod. Preferably the rod has consistent width along the longitudinal axis wherein the frustoconical sections each have the same tapered width and same length. The number of frustoconical units per rod can vary. The frustoconical sections may vary in shape. Moreover, the rod may include a channel therein extending along the longitudinal axis thereof. The rod may also include one or more grooves extending along the surface thereof.

The invention discloses an integrated fiber post for dental restoration and a preparation method thereof. The integrated fiber post for dental restoration is characterized by integrating a post and a core and comprising a post and core tail part and a head core part; the conical structure of the post and core tail part is consistent with the conical structure of a dental drilling head; the head core part is in an umbrella cap structure; the lower edge of the umbrella cap structure is fully matched with the residual part of a defected tooth; the outline part of the umbrella cap structure is fully matched with a crown part; and a porcelain crown is directly sleeved on the head core part. The method for forming and machining the integrated fiber post comprises the following steps of: (1) acquiring CT (computed tomography) data of the defected tooth; (2) reconstructing the three-dimensional model of the tooth and a post and core crown through a computer; (3) building a CAD (computer-aided design) model of the integrated post and core; (4) transferring the information of the CAD model of the integrated fiber post and core into a CAM (computer-aided manufacturing) numerical control center; and (5) cutting and machining the integrated fiber post and core by a machining center of a numerical control machine. The fiber post of the invention has improved strength, reduced post and core abhesion in application, and avoidances of breakage of tooth posts and failure of restoration caused by stress concentration.

The present invention relates to a dental post for supporting dental prostheses by a screw attachment and method for the manufacture thereof which provides a customizable optimum solution for each case, both from the mechanical viewpoint and from the aesthetic viewpoint, essentially comprising an upper hole into which the retaining screw is screwed for retaining the prosthesis on the post such that the upper hole can be located at any point of the surface of the post once said post has been customized in terms of the shape thereof and type of retention to the prosthesis depending on the mechanical and aesthetic needs of the type of rehabilitation suitable for each particular case.

A fiber optics dental post includes a resin body and plural fiber optics center shafts; wherein the resin body includes an outer peripheral face, a receiving irradiation portion, and a bottom; each of the fiber optics center shafts pierces through and is fixed in the resin body, and has a receiving irradiation end and a light-guide irradiation end; each receiving irradiation end placed on the receiving irradiation portion of the resin body is used to receive the light irradiating on the receiving irradiation portion, and each light-guide irradiation end is respectively placed on the outer peripheral face and at the bottom of the resin body, thus the light received by each receiving irradiation end is propagated to the outer peripheral face and the bottom of the resin body through the light-guide irradiation end for irradiation, so as to effectively enhance the adhesion strength of the dental post.

The present invention is a dental implant utilizing a polymeric dental post. The actual prosthetic portion of the implant may also be manufactured from a polymer. Various post designs are disclosed for setting and securing the post in a patient's jaw. Numerous polymers are disclosed and may be blended to achieve desired characteristics for both the post and prosthetic.

An adjustable dental implant comprises an implant body, a connecting structure, and two wings. The implant body comprises a fixture and an abutment. The fixture comprises a top, a bottom, a peripheral surface connected between the top and the bottom, and a joining portion formed on the peripheral surface. The abutment is set on the top of the fixture. The connecting structure is set between the fixture and the abutment. The wings are pivotally connected with two opposite sides of the connecting structure. Or, one of the wings is pivotally connected with the connecting structure, and the other wing is fixed with the connecting structure. The wing or the wings may be adjusted to fit the surface of the cortical bone. Dental posts are allowed to penetrate the alveolar bone entirely to secure the fixture.

The invention discloses a preparation method and application of an antibacterial coating on the surface of a dental implant, belonging to the field of biomedical polymer materials. The dopamine is coated on the surface of titanium metal, and then inserted into the trigger point to trigger the ATRP polymerization reaction, and the ring-opening reaction is carried out, and then the antibacterial agent is added under mild conditions of aqueous solution and normal temperature. The antibacterial coating is modified on the surface of the titanium metal tooth post, and the antibacterial agent is attached to the surface at room temperature and in the mild condition of aqueous solution. Compared with other methods of grafting onto the surface in an organic solvent, this method has no organic solvent residue problem, high safety, is more suitable for the environment in the human oral cavity, and has a contact non-release long-term bactericidal effect.