A method is provided for designing and fabricating a removable partial denture (RPD) framework including clasp retainers configured for removable engagement with abutment teeth of a patient. The method includes obtaining an initial digital model of the RPD framework based on patient image data. For each clasp retainer, a set of relevant geometric parameters is identified, each relevant geometric parameter being provided with a nominal value, and a target value of dislodging force is provided. The method further includes performing a force analysis on the initial digital model to determine corrected values for the relevant geometric parameters of each clasp retainer such that when the corrected values are assigned to the relevant geometric parameters, the dislodging force matches its target value. The method also includes obtaining a corrected digital model based on the corrected values, and fabricating the RPD framework based on the corrected digital model.

A dental molded article has a predetermined shape so as to be used in an oral cavity, and contains polycaprolactone, acrylic resin, powdery silica, ascorbic acid, titanium oxide, a pigment, and zinc stearate. The acrylic resin is set to have a weight ratio of 5 to 30%, the powdery silica is set to have a weight ratio of 5 to 25%, the ascorbic acid is set to have a weight ratio of 0.3 to 1.8%, the titanium oxide is set to have a weight ratio of 0.001 to 0.02%, the pigment is set to have a weight ratio of 0.001 to 0.1%, and the zinc stearate is set to have a weight ratio of 0.001 to 0.1%, with respect to the polycaprolactone. Thus, a dental molded article and a dental resin material that can easily fit a mucosal surface in an oral cavity of a patient, are provided.

Removable denture data of a removable denture is produced, and disk frame data of a disk frame in which the removable denture is accommodated is produced, thereby building the disk frame based on the disk frame data. Next, a resin disk in which artificial teeth are embedded is produced by arranging the artificial teeth in the disk frame and curing a base resin, and a denture base is milled by milling the resin disk based on the removable denture data, thereby manufacturing the removable denture in which a base side of the artificial teeth is embedded in the denture base. As a result, artificial teeth having an excellent aesthetics may be used, it is possible to firmly join the artificial teeth and the denture base to each other, and it is possible to manufacture a removable denture with a favorable restoration accuracy of the artificial teeth.

A method of making a denture comprised of fabricating a mold form, including a mold surface corresponding to an external surface of the denture; casting a liquid mold block material against the mold surface of the mold form, and curing the liquid mold block material to form a solid mold block including a second mold surface corresponding to the external surface of the denture. Denture teeth are placed in the tooth sockets of the mold block. Denture base material is delivered against the denture base surface portion of the second mold surface and bases of the denture teeth. The liquid denture base material is cured into a solid state to form a denture base block including embedded denture teeth. The denture base block is placed in a milling fixture; and milled to form the internal surface of the denture.

An implant-supported denture placement and alignment system may include a denture apparatus. The denture apparatus may have a denture base and a denture base positioning system. The denture base may comprise an implant guide system and be connectable to implants. In this manner, the denture apparatus may be positioned so that it is mountable to the implants placed according to the implant guide following their placement in a patient's mouth.

Positive models of a prosthesis base or partial prosthesis base are produced additively or generatively in 3D printing using a dental prosthesis manufacturing process. The model is then encapsulated with a curing negative mold production material, in particular plaster. In the next step, following curing of the casting material, the positive model is removed by heat. The negative mold of the base is filled with prosthetic material and is cured. The positive model is subsequently applied to the base and embedded together with it. The positive model of the dental crown is then removed. The resulting free space is filled with tooth material by injection.

The invention relates for producing permanent dentures without using any implants (screws) on the gum or using glue but using the vacuum of suction cells (suckers), between the natural gum and dentures, but using flexible thin plastic (approved by FDA) sheath between the gum and the dentures using suckers (similar to octopus) made on upper and lower surfaces of the sheath the upper sheath surface will have the same shape of the normal denture lower surface, similarly the lower sheath surface will have the same shape of the gum, the shape of the plastic sheath will always have the same shape of the gypsum modeled cast at the dentist clinic, for the gum surface, all the suckers will be (squeezed) pressed and create vacuum to hold the dentures to the gum and the dentures.

Method for producing an artificial gingiva The invention relates to a method for producing an artificial gingiva (1), in which a 3D model (3) of the artificial gingiva (1) is already provided. A gingiva template (4) representing at least partial areas (5) of the 3D model (3) of the artificial gingiva (1) is constructed as a negative mold using the 3D model (3) of the artificial gingiva (1).

The invention relates to a computer-implemented method for providing a template for a casting matrix configured for casting one or more artificial gingiva parts of a removable denture. The casting matrix comprises one or more recesses. Each of the recesses has a 3D geometric form, which is a negative of a 3D geometric form of a section of the removable denture with one of the artificial gingiva parts to be casted.

The invention relates to a method for the production of a restoration from a blank consisting of, or containing, a lithium silicate glass ceramic, wherein at least two layers of ceramic material of different compositions are filled into a mold layer-by-layer and after filling of the layers they are then pressed and sintered, wherein after filling of a first layer this is structured on its surface in such a way that the first layer, viewed across its surface, differs in its height from region to region, and then a layer with a composition that differs from the first layer is filled as a second layer into the mold. After sintering the dental restoration is produced from the blank by mechanical working.