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The method of measuring the wound surface area with periodontal probe in case #5. (a) A periodontal probe with black tick marks in which each one represents 1 mm, and hence the labled numbers represent the sequence of the measurement; (b) shows the length measurement of the wound (1.8 mm); (c) shows the periodontal in place measuring the width of the wound (2.5 mm), and hence, the wound surface area was 4.5 mm2.
