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Blog By:
Claire J

(A). Williams
(B). UNC
(C). Naber’s
(D). Marquis

Types of probes:

• Marquis: 3-6-9-12 mm markings. Black band at 3-6 mm and 9-12 mm.
• Williams: 1-2-3-5-7-8-9-10 mm markings. No marking at 4, 6 mm.
• Michigan O: 3-6-8 mm markings.
• UNC 12 (or 15): 1-2-3-4-5-6-7-8-9-10-11-12-(13-14-15) markings. Black band at 4-5 mm, 9-10 mm (and 14-15 mm).
• WHO: 0.5 mm ball tip, color band from 3.5-5.5 mm and 8.5-11.5 mm markings.
  • Used for periodontal screening (PSR).
• Goldman fox: flat tip design (beavertail), 1-2-3-5-7-8-9-10 mm markings. No marking at 4, 6 mm.
• Novatech: right-angle bend with mm markings. Allows easier access to posteriors.
• Naber’s: double-ended in mirror image, curved design with 3 mm intervals markings. Used to assess furcations.
• Florida: computerized probing. Can provide more accurate readings as the same amount of force is applied and depth is measured to the tenth millimeter.

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