A Simple Technique to Create Accurate, Esthetic Immediate Implant Provisional Restorations: Hurricane Anti-rotation Wing.

Inserting a presurgically fabricated provisional restoration at the time of implant placement can be problematic if and when the provisional does not fit. The 3-dimensional position of the implant in the mouth typically is not as critical as the long-axis rotational orientation of the implant, which is known as "timing." During implant placement, it is often desirable to have one of the implant's internal hexagon flats in a specific rotational position (ie, timing) that enables the use of orientation-specific hexed abutments. Achieving timing with a high level of accuracy, however, is challenging. This article presents a proposed solution to this dilemma that eliminates any concern for implant timing during surgery by transferring the anti-rotation control from the implant's internal hex to the provisional restoration itself via the use of anti-rotational wing(s).