Base, screw and interchangeable intermediary piece for securing a dental prosthesis to a dental implant and prosthetic component for securing a dental prosthesis to a dental implant

Screw (300), characterized in that it comprises:

• a first external wall (301) and a second external wall (302);
• a second section (306) defined by the difference in diameter between the first external wall (301) and the second external wall (302);
• a screw rim (303) at its coronal end, said screw rim (303) having the same diameter as the upper surface (208) of the interchangeable intermediate component;
• an external thread (304), configured to be screwed into the internal thread (108) of the base (100);
• and
• an upper internal thread (305).

Interchangeable intermediate (200), characterized in that it comprises:

• a through hole (201);
• said through hole (201) comprising a first internal wall (206) and a second internal wall (207), the second internal wall (207) having a smaller diameter than the first internal wall (206);
• said through hole (201) further comprising a first section (209) defined by the difference in diameter between the first internal wall (206) and the second internal wall (207);
• an apical end (202) having a dodecagonal profile;
• a connection region (203) adjacent to said apical end (202), configured to connect to a of a base (100);
• and an edge (204) having the same diameter as the surface of the coronal end (105) of the base (100) .

Prosthetic component for fixing a dental prosthesis to a dental implant, characterized in that it comprises:

• a base (100), said base (100) comprising:
• an apical end (101) having an external thread (102), configured to be screwed into an internal thread of said implant;
• an angled wall (103), with a curved transition region (104), such that the diameter of the coronal end (105) is greater than the diameter of the junction region between the angled wall (103) and the transition region (104);
• an internal cavity (109) formed by an internal wall (106), located immediately below the surface of the coronal end (105);
• a connection region (107) having a hexagonal profile, located immediately below the internal wall (106);
• and
• an internal thread (108), located immediately below the connection region (107);
• an interchangeable intermediate (200), said interchangeable intermediate (200) comprising:
• a through hole (201);
• said through hole (201) comprising a first internal wall (206) and a second internal wall (207), the second internal wall (207) having a smaller diameter than the first internal wall (206) ;
• said through hole (201) further comprising a first section (209) defined by the difference in diameter between the first internal wall (206) and the second internal wall (207);
• an apical end (202) having a dodecagonal profile (12 sides);
• a connection region (203) adjacent to said apical end (202), configured to connect to the connection region (107) of the base (100);
• an edge (204) having the same diameter as the surface of the coronal end (105) of the base (100);
• wherein said interchangeable intermediate (200) is configured to be fixed to a dental prosthesis;
• and
• a screw (300) configured to be inserted into the through hole (201) of the interchangeable intermediate (200), said screw (300) comprising:
• a first external wall (301) and a second external wall (302);
• a second section (306) defined by the difference in diameter between the first external wall (301) and the second external wall (302);
• a screw rim (303) at its coronal end, said screw rim (303) having the same diameter as the upper surface (208) of the interchangeable intermediate component;
• an external thread (304), configured to be screwed into the internal thread (108) of the base (100) ;
• and
• an upper internal thread (305);
• wherein the base (100) is permanently fixed to a dental implant (1) by screwing the external thread (102) of said base (100), and the interchangeable intermediate (200) is fixed to the base (100) by screwing the external thread (304) of the screw (300) into the internal thread (108) of the base, such that a lower surface of the screw rim (303) interferentially fits against the upper surface (208), thereby fixing the base (100), the interchangeable intermediate (200), and the screw (300).