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An alternative technique uses a titanium root fused to a zirconia abutment by a sintering process that eliminates any possible microgap (which could cause peri-implantitis, leading to bone loss around the implant). [14] True 'root-form analogue' or 'anatomic' dental implants have been attempted in the past.
There are variations on this, such as when the abutment and implant body are one piece or when a stock (prefabricated) abutment is used. Custom abutments can be made by hand, as a cast metal piece or custom milled from metal or zirconia, all of which have similar success rates. [33]: 1233
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 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).
The overall success rate for dental implants is between 90 and 100% according to the study. [12] Common prosthetic issues following the installation of an implant-supported prosthesis include mucositis, loosening or breakage of the abutment screw or prosthetic parts, and fracture of the acrylic or porcelain structure.
This dental radiograph displays two identical 5.0 mm diameter Biomet 3i tapered dental implants placed into the lower right mandible. The healing abutment on the more posterior implant [left] is platform matched (it shares the same 5.0 mm diameter as the implant platform), while the healing abutment on the more anterior implant [right] is platform switched (it possesses a 4.1 mm diameter).
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