Posterior jacquette scaler is designed for removal of supragingival calculus. The face of the working end is perpendicular to the terminal shank. The working end of the instrument has a pointed tip and pointed back.
This is only recommended for supragingival scaling and is not recommended for use on root surfaces or subgingival because the pointed tip and back can cause tissue damage.
It is inserted under the ledge of calculus and used with a pull stroke. Angled shank of the posterior scaler allows easy accessibility to the posterior teeth.
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