Search results
Results from the WOW.Com Content Network
The movement experienced at the abutment in an integral bridge is an order of magnitude greater than those designed with movement joints. The size of movement depends on the stiffness of the bridge structure and the fill adjacent to the abutment (which is subject to compaction).
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. [1] Single-span bridges have abutments at each end that provide ...
In dentistry, an abutment is a connecting element. [1] This is used in the context of a fixed bridge (the "abutment teeth" referring to the teeth supporting the bridge), partial removable dentures (the "abutment teeth" referring to the teeth supporting the partial) and in implants (used to attach a crown, bridge, or removable denture to the dental implant fixture).
Tilted abutments may require extensive preparation to achieve parallelism and sufficient retention; Ideally abutments should be equally retentive which is difficult to achieve, especially posteriorly when the retainers are a molar and premolar; Fixed-movable: Abutment teeth are able to move independently
It is an integral bridge, i.e., it has neither joints nor bearings at their ends, but the girder is rigidly connected to the abutments; thus it is easier to maintain. It shows that concrete can be used to build slender structures with elegance.
In a bridge, the wing walls are adjacent to the abutments and act as retaining walls. They are generally constructed of the same material as those of abutments. The wing walls can either be attached to the abutment or be independent of it. Wing walls are provided at both ends of the abutments to retain the earth filling of the approaches.
A multi-unit abutment (MUA) is an abutment most commonly used with dental implants in "All-on-Four" protocols. [1] [2] They are designed for screw-retained group restorations, [3] which are often used in combination with angled dental implants [4] and whole arch replacements, as well as screw fixation of bridges made of zirconium or metal-ceramic group restorations to the implant.
In implant dentistry, the implant-abutment junction (IAJ) refers to the location of intimate contact between a dental implant and its restorative abutment.. The IAJ is a focus of much attention because its morphology and location tend to affect the amount of bone resorption during the initial period of crestal bone changes immediately following implant placement.