e. Periodontal File (FILE, PERIODONTAL). A periodontal file (figure 4-4) is
used to remove gross supragingival calculus, smooth the cementoenamel junction, and
remove overhanging margins of dental restorations. Files are a series of fine short blades
or hoes at an angle to the shank and are quite difficult to sharpen. A pulling stroke is
used to activate the periodontal file. Some examples of periodontal files are the Orban
10, 11, 12, and 13 and the Sugarman 15/25 and 35/45.
Figure 4-4. Periodontal files.
f. Periodontal Pocket Marker (FORCEPS, PERIODONTAL POCKET
MARKING). A periodontal pocket marker (figure 4-5) is used to determine the depth of
soft tissue pockets and the contour of the bone resorption about a tooth. While the area
is anesthetized, a bleeding point is created for easy identification by the dental officer.
The surgical knife is placed at the bleeding point and the tissue coronal to that point is
excised and removed. This procedure is called a gingivectomy. An example of a
periodontal pocket marker is the Goldman-Fox number two.
Figure 4-5. Periodontal pocket marker.