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  • Screw versus Cemented Impla...
    Ho, Christopher C.K

    Practical Procedures in Aesthetic Dentistry, 02/2017
    Book Chapter

    An implant‐supported restoration can be inserted onto an implant by either attaching it to the implants with screws or cementing it onto abutments that have been secured by screws. There are advantages and disadvantages to each procedure, and the decision of whether to screw retain or cement a restoration is often dependent on the implant position and clinician preference. Screw retention requires a screw‐access hole to be made through the restoration that is normally restored with composite resin once the restoration is in place. Screw‐retained restorations can be secured to implants with as little as 4 mm of space from the platform of the implant to the opposing teeth. In a cement‐retained restoration there is no screw‐access hole that may interfere with occlusal stops or excursive movements. Incomplete removal of cement may result in peri‐implant inflammation, soft‐tissue swelling, bleeding and/or suppuration and eventual resorption of peri‐implant bone.