Dental retention systems which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured to an anchoring implant bored into the bones within the mouth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy compression plates or elements extending along the projecting abutment portion. Each of the plates has a length with one or more straightened portions and with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion self-flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.

Root canal abutment devices and methods which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured within a pulp chamber of a pre-existing tooth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy sleeves or plates or elements extending along the abutment. Each of the sleeves has a length with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.

Root canal abutment devices and methods which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured within a pulp chamber of a pre-existing tooth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy sleeves or plates or elements extending along the abutment. Each of the sleeves has a length with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.

A dental restoration system is disclosed. A dental restoration system includes an implant, retention component, dental component and driver tool. The retention component is seatable in a retention chamber of the implant. The retention component includes a driver section for interfacing with a driving head of the driver tool and a dental component engagement section with a threaded surface. The dental component includes a retention component interface surface with threads. The dental component engages the retention component via the threaded surface interlocking with the threads of the retention component interface surface when the dental component is inserted in the implant. The driver tool is used to rotate the retention component to engage the dental component apically. The retention component contacts the retention component wall and the dental component contacts an annular shoulder of the implant when the dental component is fully attached to the implant.

Disclosed is a dental implant (1) comprising a post part (2) which can be placed in a jaw bone and comprising a structural part (4) associated with said post part, to which structural part a denture piece can be attached, the structural part comprising an integrally moulded contact pin (8) which can be placed in an associated shaped recess (10) in the post part (2) with a positive fit, thereby making it possible to suitably index the implant in a simple and reliable manner with a particularly high level of mechanical stability against rotation being ensured, even with an overall height which is kept low. For this purpose, the cross-sections of the contact pin (8) integrally moulded on the structural part and of the shaped recess (10), associated with said contact pin, in the post part (2) each have a number of primary directions in which the radius in each case adopts a relative maximum value, the outer contour of the cross-section being selected in such a way that it is intersected at most two points by any straight lines, and each point has only one tangent.

An implant comprising two internal anti-rotational features. One anti-rotational feature is adapted to engage a driving tool, while the other anti-rotational feature is adapted to engage an abutment. An implant abutment system is provided with an angled abutment adapted to mate with one of the anti-rotational features. A second, straight abutment is adapted to engage with the other anti-rotational feature. An abutment is provided with resilient fingers to interface with the implant and provide tactile and audible feedback indicating when the abutment is properly seated. An abutment screw extends through the abutment and engages the implant bore distal of the stem of the abutment. The abutment screw limits axial movement of the abutment relative to the implant. A driving tool comprising one of at least retention structure and visual alignment indicia is provided to facilitate screwing the implant into a patient's bone.

A dental implant assembly is disclosed. The dental implant assembly includes an implant having a bore within a coronal end, an abutment configured to couple to the implant to the coronal end, a screw configured to secure the abutment to the implant, and a gasket configured to seal an interface between the implant and the abutment.

Disclosed is a dental implant abutment having a function of buffering occlusal force transmitted through a prosthesis and configured to be elastically coupled to the prosthesis without using an adhesive. A prosthesis fastening protrusion protrudes outward from an outer surface of an upper portion thereof on which a prosthesis is mounted. The diameter of the prosthesis fastening protrusion being greater than the diameter of a portion located directly therebelow. Indentations divide the upper portion of the abutment into a plurality of sections. The indentations continuously extend downward a predetermined length from a top end surface of the abutment. A predetermined lengthwise portion of each of the indentations has a spiral or oblique shape.

The invention relates to a secondary part (1) for a dental implant (2). The secondary part (1) has a head part (3) and a connection part (4). The connection part (4) has at least two spring elements (5), which extend along a longitudinal axis (L) of the secondary part (1). The spring elements (5) have a coronal end (6) and an apical end (7) and are connected at the coronal end (6) to the head part (3) In addition, the at least two spring elements (5) are radially supported with respect to each other at the respective apical ends (7) by an end part (8). A central part (9) of at least one of the supported spring elements (5) is in this case elastically deflectable in a radial direction.