A dental implant has a core manufactured in metal and a sleeve having an internal wall and nested by sliding on an upper part of the core in such a manner that the internal wall is located faced to that upper part of the core, which sleeve is manufactured from ceramic or Peek, a gap being left between the core and the internal wall of the sleeve in such a manner that an adhesive layer can be lodged in a space formed by the presence of that gap, wherein said gap has a distance situated between 5 and 30 μm, in particular between 10 and 20 μm.

Disclosed is a lateral wall supported implant system having a supporting screw surgical guide. According to the present invention, there is provided the lateral wall supported implant system including: a primary screw placed in the alveolar bone; a surgical guide disposed on a lateral wall of the alveolar bone with the primary screw placed therein; and supporting screws passing through the surgical guide and the lateral wall and then coupled to the primary screw to provide supporting forces for the primary screws so that the primary screw is supported against the lateral wall to have the primary stability thereof.

A dental attachment assembly is provided, including an abutment member and a male member. The abutment member may include an outer locating surface portion having at least two axially spaced retention portions having two generally rounded, annular projections. The male member for engagement over the outer locating surface of the abutment member may include an upper end and a continuous, unbroken skirt having a rounded, convex outer surface. The male member may be constructed from a rigid material and have at least two axially spaced, snap engaging formations on the inner surface of the skirt for snap engagement with the respective retention portions of the abutment member.

A dental assembly is provided, which includes an endosseous dental implant, a retention member, and a cap configured for securing in a dental appliance and engaging the retention member. The endosseous dental implant may have an external projection extending from the top of the first end portion for releasable engagement with an abutment member, wherein the abutment member has an external lower bevel portion. The retention member may have a first end and a continuous, unbroken skirt extending from the first end defining an inner surface for engagement over the outer locating surface of the abutment member, the retention member being constructed from a rigid material such that it provides a retentive force of about 10 to 75 pounds. The rigid material may include PEEK.

Dental assemblies comprising a dental appliance are provided herein. Contemplated dental appliances can comprise a first recess and a second recess, a first cap for securing in the first recess and a second cap for securing in the second recess, a first abutment member for attaching to a first tooth root, implant, or adjacent tooth, and a second abutment member for attaching to a second tooth root, implant, or adjacent tooth. A first retention member sized for engagement within the first cap may be provided, the first retention member having a first end and a continuous, unbroken skirt extending from the first end defining an inner surface for engagement over the outer locating surface of the first abutment member, and the retention member being constructed from a rigid material such that it provides a retentive force of about 10 to 75 pounds.

A fixed hybrid dental attachment assembly comprising an abutment member, a male member, and a cap are provided herein. The abutment member comprises an outer locating surface portion projecting downwardly from an upper end. The male member for attachment to the abutment member comprises an upper end for engagement within a cap in a recess in a dental appliance, and a continuous, unbroken skirt projecting from the upper end of the male member for engagement over the outer locating surface of the abutment member. The skirt may comprise a rounded, convex outer surface, and the male member may be constructed from a PEEK material.

There is provided an implant having a slack prevention function by an eccentric fitting structure. An engaging shaft 53, which is decentered with a screw shaft 52, is provided at the end of an abutment screw 5, and is engaged with an engaging hole 45 provided in the bottom of a screw hole 44, into which an abutment screw 5 is screwed, and thus, the screw shaft 52 is inclined to and eccentric from the screw hole 44. Thereby, the screw shaft 52 comes to be strongly pressed partially in a circumferential direction toward the screw hole 44, so that internal stress in the horizontal direction is accumulated on the screw shaft 52. The screw 5 is threaded with maintaining prevailing torque caused by the internal stress, which enables the screw 5 to be fastened to the right position.

Disclosed herein is an article comprising a first screw and a second screw, the first screw being reversibly attached to the second screw such that a longitudinal axis of the first screw coincides with or is parallel to a longitudinal axis of the second screw; the first screw and the second screw each comprising a biodegradable composition, the biodegradable composition comprising a metal or metal alloy comprising magnesium, strontium, zinc, calcium or a combination comprising at least one of the foregoing. Methods of making and using the article are also disclosed herein.

Subject matter of the invention are prosthetic mouldings, which have, at least area by area, at least one layer of biomimetic apatite selected from fluorapatite, hydroxylapatite or their mixtures on their surface, wherein the surface of the mouldings has micromechanical anchoring positions at least in this area to improve mechanical connection of apatite to the surface. Another subject matter of the invention are mouldings for use in dental, prosthetic treatment for tooth loss, in particular for cellular attachment of cells to prosthetic mouldings. Moreover, subject matter of the invention is the method for the production of the prosthetic mouldings.

The present invention relates to a dental implant, and more particularly, to a dental implant including a fixture 10, an abutment 30 coupled to an upper end of the fixture 10, and an abutment fixing screw 40 coupling the abutment 30 to the fixture 10. The fixture 10 is molded of ceramic and includes a screw part 13 disposed on an outer circumferential surface and a screw hole 14, to which the abutment fixing screw 40 is coupled, disposed in a central axis direction. A helical coil 20 is disposed between the screw hole 14 of the fixture 10 and the abutment fixing screw 40 to couple an outer portion 21a of the helical coil 20 to a screw valley 14a of the screw hole 14 of the ceramic fixture 10 and an inner portion 21b to a valley 41a of the screw part 41 of the abutment fixing screw 40 in a screw coupling manner.