Fig. 2From: Estimation of periodontal pocket surface area in small to medium dogs: a proof-of-concept studyScheme for calculating periodontal pocket surface area (PPSA) A whole tooth root; B apical side from the bottom of the pocket; C PPSA: the three parts of the cone (A to C) are used as the side surface area, generatrix length, and perimeter of the bottom, respectively. Meanings and formulas are shown in the tableBack to article page