b. Periodontal Scaler (SCALER, PERIODONTAL). A periodontal scaler (figure
4-1) is used to remove calculus and stain from the clinical crown of the tooth. The scaler
has pointed blades along each side and is used with a pull stroke. The scaler may either
be single-ended or double- ended. Some examples of periodontal scalers are the McCall
13-14S and 17-18S, Younger-Good 7/8, Orban straight sickle 14, Crane-Kaplan 6,
Towner U-15, Kirkland 13K/13KL, and Pritchard.
Figure 4-1. Periodontal scaler.
c. Periodontal Curette (CURETTE, PERIODONTAL). A periodontal curette
(figure 4-2) is used to remove calculus, smooth root surfaces, and the soft tissue wall of
the pocket. A curette is used with a pull stroke. The blades must be sharp to be of any
value. Examples of periodontal curettes are the Gracey curettes (1 through 14) with
flexible shanks. Separate sets for curettage and root planing are usually available.
Figure 4-2. Periodontal curette.
d. Periodontal Hoe (HOE, PERIODONTAL). The periodontal hoe (figure 4-3) is
used to remove gross amounts of supragingival calculus and some subgingival calculus
in large wide-open pockets where gingival tissues are soft and very easily cleaned. The
periodontal hoe is used with a pull stroke. Some examples of periodontal hoes are the
Orban 6/7 and 8/9 and Kirkland 14.
Figure 4-3. Periodontal hoes.