A resin-retained denture bridge having an improved bonding between a false tooth or teeth of the bridge and a retainer wire of the bridge is provided in the present invention, wherein a coupling recess is formed on a lingual side of the false tooth and a protrusion or an omega-shaped bend is formed on the retainer wire. The protrusion or omega-shaped bend is received in the coupling recess of the false tooth after or prior to a resin being filled in the coupling recess, which is then cured to form a secure engagement, so that the false tooth is bonded to the retainer with the end portions of the retainer wire extending laterally from the false tooth.

A method for producing a dental adaptive element for alleviating recession of gingiva around an alveolar socket of a patient includes: obtaining images of a tooth; creating a 3D model having a crown part and a root part based on the images; obtaining a boundary curve on the 3D model between the crown part and the root part; on the root part of the 3D virtual model, obtaining an imaginary surface that protrudes in a direction from the crown part toward the root part; extracting a sub-model from the 3D model by removing a portion of the root part that extends between the imaginary surface and an end of the root part; and producing a dental adaptive element according to the sub-model.

Provided is a reference denture alignment jig which guides reference dentures into an oral cavity or to an articulator in which upper and lower edentulous jaw models are fixed, and aligns the reference dentures in the oral cavity or in the articulator in which upper and lower edentulous jaw models are fixed, the jig having a reference denture holding portion for holding reference dentures.

Feedback data useful in prosthodontic procedures associated with the intra oral cavity is provided. First, a 3D numerical model of the target zone in the intra oral cavity is provided, and this is manipulated so as to extract particular data that may be useful in a particular procedure, for example data relating to the finish line or to the shape and size of a preparation. The relationship between this data and the procedure is then determined, for example the clearance between the preparation and the intended crown. Feedback data, indicative of this relationship, is then generated, for example whether the preparation geometry is adequate for the particular type of prosthesis.

Techniques for producing removable partial dentures (RPDs) through additive fabrication are described. According to some aspects, techniques are described by which a denture base may be additively fabricated in several separate portions and combined with a frame to form a completed denture base without the use of a refractory model. The denture base portions may be combined with a frame that was also produced through additive fabrication, or with a frame produced through traditional techniques. By creating an RPD through additive manufacturing it may be possible to eliminate many of the manual fabrication steps requiring highly-skilled and technical labor. This may reduce the total skilled labor time required in the production of RPDs, and/or may allow for repeatable and consistent results.

The present invention to a method of denture manufacture that incorporates CAM-formed occlusal portions made of zirconia, resulting in a natural fit, feel, and wear essentially similar to the wear properties of natural teeth.

The invention relates to a dental prosthesis part production method, wherein: a dental prosthesis part model is generated taking into account a dental model; a load analysis of the dental prosthesis part model is carried out; a first reinforcing structure model having a first shape and position is arranged inside the dental prosthesis part model and the dental prosthesis part model is reduced by a volume corresponding to the arranged first reinforcing structure model; the reduced dental prosthesis part model is divided into a lower partial volume and an upper partial volume; a lower part of the dental prosthesis part is produced from a first composite material according to the lower partial volume by means of the 3D printer; a first reinforcing structure corresponding to the first reinforcing structure model is arranged on the first part of the dental prosthesis part; and, by means of the 3D printer using the first composite material, an upper part of the dental prosthesis part according to the upper partial volume is placed onto the lower part of the dental prosthesis part comprising the arranged first reinforcing structure.

A System of Triple abutments with Tconnect comprising T-abutments to place at least three dental crowns over a one only osseointegrated implant and only one T-abutment, for partial fixed cases and new total fixed segmented cases, T-Over abutments with Plug T for use of overdentures over only one abutment and only one osseointegrated implant too, T-healing for guide specific gingival contour of the Tconnect in the healing phase and T-guides, to guide the implant surgery to be positioned for the use of abutments of this system. The all abutments of this system has Tconnect, being an exclusive design support with paraboloid multidimensional contour in double shape curvature with three pins disposed in the form of a tripod (in triangular arrangement) and are adaptable to all the implant/abutment fitting connections of market. All system may be individualized, make in process type CAD-CAM or prefabricated (manufactured type) and it can receive any type of surface treatment. The new biomechanical possibilities of the invention provide stability, passivity, greater precision of adaptation and better distribution of tensions, a fundamental advantage for use of the immediate load. The soft tissue is favored by immediate loading too. The new fixed arrangements with segmentation promotes cleaning and longevity for the system. This invention provides superior resistance of the abutments, long-lasting esthetic and reduction of the bone grafts, clinical time and costs, ensuring predictability of the results.

Dental preparation uses a tooth preparation guide custom-made liar fitting with teeth of a patient. The preparation guide includes one or more guide channels for guiding a cutting tool. The preparation guide enables modification of the teeth as planned with high level of precision. A dental prosthesis for installing onto prepared teeth of the patient is provided before preparation of the teeth. The prosthesis includes features that are complementary to the prepared teeth. The prosthesis can be installed immediately after preparing the teeth using the preparation guide. With the high level of accuracy and precision in the preparation of teeth, no modification of the prosthesis would be needed for installation.

Feedback data useful in prosthodontic procedures associated with the intra oral cavity is provided. First, a 3D numerical model of the target zone in the intra oral cavity is provided, and this is manipulated so as to extract particular data that may be useful in a particular procedure, for example data relating to the finish line or to the shape and size of a preparation. The relationship between this data and the procedure is then determined, for example the clearance between the preparation and the intended crown. Feedback data, indicative of this relationship, is then generated, for example whether the preparation geometry is adequate for the particular type of prosthesis.