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. 2012 Oct 23;2012:498012. doi: 10.1100/2012/498012

Table 5.

Comparison of TPI and CPITN scores.

TPI cassification Periodontal treatment need Total
TN(0) TN(I) TN(II) TN(III)
Normal occlusion
n 112 112 70 11 305
 % 36.8% 36.8% 22.8% 3.6% 100%
Slight malocclusion
n 135 113 77 19 344
 % 39.3% 32.9% 22.3% 5.5% 100.0%
Definite malocclusion
n 47 45 34 6 132
 % 35.8% 34.3% 25.3% 4.5% 100.0%
Severe malocclusion
n 5 18 9 1 33
 % 14.3% 54.3% 28.6% 2.9% 100.0%
Very severe malocclusion
n 7 6 7 2 22
 % 31.8% 27.3% 31.8% 9.1% 100.0%

Total
n 306 294 197 39 836
 % 36.6% 35.3% 23.4% 4.6% 100.0%

X 2 = 19.22, P = 0.257, P > 0.05.