APPLICATION OF ABUTMENTS IN IMPLANTOLOGY DR. KAMAL SHIGLI

DEFINITION The abutment is the portion of the implant that supports and/or retains a prosthesis or implant superstructure.

ABUTMENT COMPONENTS Abutment Cylinder Abutment Screw “O”- Ring

CATEGORIES OF IMPLANT ABUTMENT Abutment for screw retention Abutment for cement retention Abutment for attachment One piece/Two piece abutment Abutment types may also be classified as: Straight or Angled abutments

ANGLED ABUTMENTS Improve the path of insertion Esthetics

ABUTMENT SELECTION CRITERIA Orientation of Implant Esthetic demand Type of restoration

UCLA (University of California, Los Angeles) It fits directly on top of either the implant fixtures intraorally or the laboratory implant fixture analogues,which are placed in the master cast. It is a plastic castable sleeve which was made to simplify the complicated prosthetic rehabilitation.

INDICATIONS Limited interocclusal distance Esthetics

CERA ONE ABUTMENT It was originally designed for anterior maxillary single-tooth cementable porcelain restorations.

UMA (Universally Modified Abutment) Indications Retrievable prosthesis Overdenture bar construction

OVERDENTURE ABUTMENTS The Overdenture abutment offers a simple solution for stabilizing an overdenture with implants.

OVERDENTURE ABUTMENTS

NEWER TRENDS…….. Procera abutment designed using the CADD technique. an “abutment solution for every situation.”

NEWER TRENDS…….. Bicon abutment Unlike other dental implants,it requires only two parts. No screws,torque drivers,impression posts or special copings. A locking taper joins the implant to the abutment.

NEWER TRENDS…….. CerAdapt abutment Is an all-ceramic alternative to metal abutments. Is a premachined, precision-milled abutment made to fit the implant hex.

CONCLUSION The quest for an ideal prosthetic abutment/implant connection is still on….

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