*Evaluate extent of [[Dental Indices and Criteria#Tooth Mobility|tooth mobility]]
*Evaluate extent of [[Dental Indices and Criteria#Tooth Mobility|tooth mobility]]
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The markings are either engraved rings or colour coded bands. A screening probe for example has 3 or 4mm banded block markings whilst a Williams periodontal probe is more accurate with mm markings. Before using the probe, the operator should ensure that they know what the marking represent by comparing it do a ruler.
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The markings on the probe are either engraved rings or colour coded bands. A screening probe for example has 3 or 4mm banded block markings whilst a Williams periodontal probe is more accurate with mm markings. Before using the probe, the operator should ensure that they know what the markings represent by comparing the probe to a ruler.