DTE Ultrasonic scaler tips. GD1: Removal of supragingival deposits in all quadrants. GD2: Removal of heavy supragingival deposits. Apply flat end to surface of teeth. PD1: Slim and sharp, recommended for cleaning and irrigating of subgingival deposits. Pack contains : - 3 x GD1. - 1 x GD2. - 1 x PD1.