Method and kit for preparing a dental abutment

A method for forming an abutment for interfacing a dental prosthesis to a dental implant or to a dental implant duplicate thereof inserted into a patient's jaw or a model of the patient's jaw thereof, the abutment made from at least three parts, the method comprising:

• selecting an intra implant element from a plurality of prefabricated intra implant elements that fits the dental implant;
• selecting an intra-crown element from a plurality of intra-crown elements, that fits the dental prosthesis;
• removably and reproducibly attaching to the dental implant or said duplicate the selected intra-implant element;
• positioning the selected intra-crown element over the intra implant element and determining a connection between the intra-crown element to the intra implant element by a deformable element whose length and orientation may be set so as to form a model abutment that is properly adjusted to the dental implant or said duplicate and is properly positioned to receive the dental prosthesis;
• removing the model abutment from the dental implant or said duplicate without deforming the model abutment, and using the model abutment to form a permanent abutment.

A method for forming a pre-fabricated dental prosthesis that is suited for fitting via an abutment to a dental implant without requiring precise knowledge of a location and orientation of the dental implant in a patient's mouth, the method comprising:

• obtaining a model of the patient's mouth, said model having embedded therein an adapter that is configured for removably fitting thereto an intra-crown element replicate that is adapted for precise fitting to the adapter;
• creating in situ in said model an imitation dental prosthesis of each dental prosthesis that is to be pre-fabricated or an imitation infrastructure thereof on which the dental prosthesis can be subsequently constructed;
• generating a 3-D computer construction of each imitation dental prosthesis or imitation infrastructure;
• using the 3-D computer construction to generate the dental prosthesis or the respective infrastructure thereof from which the dental prosthesis may be formed and to generate a respective intra-crown element for preparing an abutment.