invention further relates to a method for producing a dental prosthesis. In this method the dental prosthesis block is provided and the dental prosthesis is produced by removing material from the dental prosthesis forming block by means of a CAD/CAM method, such that the pin forms part of the finished dental prosthesis.

A tooth implant system is provided, comprising a fixture, protrusions, and an abutment. The fixture has a top opening portion, a bottom closed portion, an inner surface portion, an outer surface portion, and a central hole portion surrounded by the inner surface portion. The plurality of protrusions are provided on the inner surface portion of the fixture at locations of substantially same heights from the bottom closed portion and with even circumferential intervals, and each of the plurality of protrusions comprises a vertical stop and a bottom edge. The abutment comprises an upper cylindrical portion, a middle connecting portion extending from the top cylindrical portion, and a lower engaging portion extending from the middle connecting portion. The lower engaging portion of the abutment is configured to be received into the central hole portion surrounded by the protrusions and engage with the protrusions.

A dental implant assembly containing an integrally-formed universal abutment which has a top section, a bottom section integrally joined to the top section, and a passageway extending through these sections. The passageway is formed by different size bores, initially a larger size than decrease in size. The top section of the abutment has a cross-sectional shape substantially like a polygon; the shape is formed by alternating linear and arcuate walls joining to a bottom section having a cross-sectional shape substantially like a polygon.

An embodiment provides a customized ready-made abutment which comprises: a post positioned at the upper end thereof to be able to be coupled inside a crown; a lower part positioned at the lower end thereof such that a part or all of the lower part can be coupled to an implant; and a gingival part positioned between the post and the lower part to be in contact with gingiva without being coupled to the implant, wherein all teeth of the maxilla and the mandible are grouped into maxillary anterior teeth, mandibular anterior teeth, canine teeth, premolar teeth, and molar teeth, and multiple customized ready-made abutments are designed and manufactured such that a standard coverage of a patient-customized abutment for each group is 65% or more.

An object of the present invention is to provide a method for manufacturing a dental prosthesis capable of properly arranging a dental reinforcement when a dental prosthesis made of resin where the dental reinforcement is arranged is manufactured. The method includes turning information on an intraoral shape into data: designing, in a form of data, a shape of a resin body that is a part formed of resin based on the data; designing, in the form of data, a position of a dental reinforcement that is to be arranged inside the resin body; and forming, in the form of data, a space and an opening that communicates with an outside in the position in the resin body where the dental reinforcement are to be arranged, based on the position, to design a resin body with an opening.

A dental implant is described and includes a threaded coronal portion having a top hollow part with a cavity and an opening in a top portion of the hollow part, wherein the top hollow part is defined by sacrificial walls of the coronal portion, wherein a width of the cavity and the opening allows insertion of a cutting element of a dental saw into the cavity.

Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth.

Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth.

Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth.

The present invention relates to: a break-resistant reinforced implant structure which manufactures a fixture and an abutment by a ceramic material having excellent strength and biocompatibility, and reinforcing a preset position into which friction is concentrated during internal and external shock or mutual bond procedure by a predetermined metal to prevent damage in order to compensate for a disadvantage of a ceramic worried about damage due to lack of elasticity; and a method of manufacturing the break-resistant reinforced implant structure. The break-resistant reinforced implant structure comprises: a fixture (10) and an abutment (20) which are formed by a ceramic material integrally or integrally by mutual coupling as individual split type. The fixture (10) and the abutment (20) are stacked therein with a reinforced layer (30) at surfaces or mutual coupling surfaces.