RESULTS
fracture
CLASS I MALOCCLUSION
A total of 60 subjects were recruited, out of which 6 were excluded (3 were not meeting the inclusion criteria, while 3 refused to participate). Out of 54 subjects, two dropped out during the study, either because they missed appointment or retainer fracture. Subjects with dislodged or broken retainers had to be excluded to minimize bias, as they were referred immediately for the appliance repair to maintain the stability of the dentition. Hence data was analyzed on 52 subjects (26 in each group) (The measurement error and reliability between the three observers was checked using intraclass correlation, and good agreement was found between the measurements (ICC > 0.70).The mean age of subjects was 21.5 ± 3.6 years, ranging from 14 to 30 years. Out of 52 subjects, 8 (15.4%) were males, while 44 (84.6%) were females. Out of 52 cases, 38 (73.1%) were Class I malocclusion treated while 14 (26.9%) were Class II treated cases. 
