UNIVERSITY OF NORTH CAROLINA WILLIAM PREMIUM

UNC15 Probe on one side and William Probe on other side used to measure pocket depths around a tooth in order to establish the state of health of the periodontium with their long, thin, and blunted tips.UNC15 has markings mm1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 and William Probe has markings mm1-2-3-5-7-8-9-10  inscribed onto the head of these instruments for accuracy and readability.