The objective of this pilot cross-sectional study was to assess effcacy of training dental officers (DO) and nurses (DN) in the Index of Orthodontic Treatment Need (IOTN). A conventional training method of lectures, manual; and md5,0n* exettise was used for bath Lest groups. 30 study models in all grades in the Aesthetic component (AC) and dental health component (DHC) were graded by 27 subjects (13 DO, 14 DN) after training. Results were cnrrlparedfor agreement with an exper; group, Kappa statistic: was used to assess strength in agreement in correct grouping of AC and DHC in the Categorie; gf treatment need, Wilcoxon Rank sum test was used to compare mean kappa and % 0 correct res ames in the test. Spearman rank correlation was used to test association of 11g experience with mean kappa values. There was ‘m0demte’ agreement in correct groupingfor ojjqcers in AC (K=O.5l) and DHC (K`=O.4l); Cmd 'fair’ j‘0'f TluTS€S in AC (K=O.40) and DHC (K:O,34). There was no significant difference between groups. Subjects were better at identifying cases with definite need than little/ borderline need for treatment. There was more inaccurate grading in DHC Gmde+qualifier for both groups (p<0.000) with significant difference between groups (p=0.005). AC mean kappa WGS SfaBlS!iCl1llj)' Signiflfdnf (p=0.034) and inversely associated with working experience (1<= -.409). The AC is I1 promising screening mol for officers and nurses to assess definite orthodontic treatment need. More tminin in the DHC is re uired or accurate assessment.