From: Estimation of periodontal pocket surface area in small to medium dogs: a proof-of-concept study
A: Maxilla | ||||
Estimated root length | Estimated root surface area | PPSA | ||
Supplement 2 | Supplement 3 | Supplement 4 | Supplement 5 | |
max I1 | 1.06 × Root length (max P4)-3.63 | 12.1 × Root length (max I1) + 16.6 | Estimated surface area × {1- (Estimated root length—Average PD1-6)2 / Estimated root length 2} | |
max I2 | 0.50 × Root length (max P4) + 3.00 | 23.2 × Root length (max I2)-45.7 | ||
max I3 | 0.94 × Root length (max P4) + 1.60 | 31.9 × Root length (max I3)-89.5 | ||
max Canine | 1.49 × Root length (max P4) + 2.36 | 26.9 × Root length (max Canine) + 6.30 | ||
max P1 | 0.34 × Root length (max P4) + 2.69 | 24.4 × Root length (max P1)-32.6 | ||
max P2 | 0.70 × Root length (max P4)-0.96 | 13.7 × Root length (max P2) + 105.7 | ||
max P3 | 0.37 × Root length (max P4) + 2.52 | 70.5 × Root length (max P3)-196.7 | ||
max P4 | 0.47 × BW + 7.6 | ND | 119.2 × Root length (max P4)-560.7 | |
max M1 | 0.44 × Root length (max P4) + 2.95 | 89.8 × Root length (max M1)-219.4 | ||
max M2 | 0.47 × Root length (max P4)-1.44 | 39.4 × Root length (max M2)-33.9 | ||
B: Mandible | ||||
Estimated root length | Estimated root surface area | PPSA | ||
Supplement 2 | Supplement 3 | Supplement 4 | Supplement 5 | |
mandi I1 | 0.64 × Root length (max P4) + 2.55 | 13 × Root length (mandi I1) + 1.6 | Estimated surface area × {1- (Estimated root length—Average PD1-6)2 / Estimated root length 2} | |
mandi I2 | 0.86 × Root length (max P4) + 0.26 | 14.8 × Root length (mandi I2) + 2.0 | ||
mandi I3 | 0.59 × Root length (max P4) + 4.52 | 23.3 × Root length (mandi I3)-77.7 | ||
mandi Canine | 1.13 × Root length (max P4) + 5.92 | 40.6 × Root length (mandi Canine)-107.3 | ||
mandi P1 | 0.29 × Root length (max P4) + 3.29 | 30.5 × Root length (mandi P1)-24.6 | ||
mandi P2 | 0.41 × Root length (max P4) + 2.83 | 43.4 × Root length (mandi P2)-87.9 | ||
mandi P3 | 0.45 × Root length (max P4) + 3.15 | 46.1 × Root length (mandi P3)-117.6 | ||
mandi P4 | 0.52 × Root length (max P4) + 3.99 | 36.5 × Root length (mandi P4)-45.7 | ||
mandi M1 | 0.78 × Root length (max P4) + 3.20 | 71.4 × Root length (mandi M1)-113.3 | ||
mandi M2 | 0.25 × Root length (max P4) + 3.65 | 45.4 × Root length (mandi M2)-118.0 | ||
mandi M3 | 0.82 × Root length (max P4)-5.36 | 17.7 × Root length (mandi M3) + 10.8 |