Epidemiology of Malocclusion and Assessment of Orthodontic Treatment Need for Nepalese Children

Table 4

Relationship between the IOTN (DHC) grades and study population.

IOTN (DHC)	Males	Females	Total	Percentage
Grade 1—no need for treatment	161	141	302	15.02
Grade 2—mild/little need	159	137	296	14.7
Grade 3—moderate/borderline need	292	192	484	24.07
Grade 4—severe treatment need	251	245	496	24.67
Grade 5—extreme treatment need	258	174	432	21.59
Total	1121	889	2010	100