Color Coded Periodontal Expro #23/Williams, markings at 1, 2, 3, ...
Color Coded Periodontal Expro #2/WHO, markings at 3.5, 5.5, 8.5, ...
Periodontal Expro #23/Williams
Periodontal Expro #23/Michigan OW
Periodontal Expro #23/Goldman-Fox
Periodontal Expro #17/Goldman-Fox
Michigan O Round Periodontal Probe, markings at 3, 6, 8 mm
Williams Round Periodontal Probe, markings at 1, 2, 3, 5, 7, 8, 10& ...
WHO Periodontal Probe, Color Coded, markings at 3.5, 5.5, 8.5,  ...
Color Coded Periodontal Expro #23/WHO 3.5, 5.5, 8.5, 11.5 mm
Periodontal Expro #23/Michigan O
Periodontal Expro #17/Williams