The Relationship of Orthodontic Treatment Need with Periodontal Status, Dental Caries, and Sociodemographic Factors

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%

𝑋²=19.22, 𝑃=0.257, 𝑃>0.05.