INTRODUCTION In general, orthodontic treatment focuses on improving functional occlusion and facial appearance.(1) Awareness of how facial appearance affects quality of life has rapidly increased the demand for such treatment. In most cases, the motivating factors for undergoing orthodontic treatment are enhanced dental and facial aesthetics and consequently minimized psychosocial problems.(2,3) Studies of oral health-related quality of life (OHRQoL) in orthodontics are important because they provide information about therapeutic needs and outcomes as well as long-term oral health improvement.(4) They can also ensure better therapeutic choices based on the patient’s perception.(5) Self-ligating brackets are popular in orthodontics because of their proposed superior properties including low static frictional resistance, full and stable archwire engagement, …show more content…
Statistical Analysis Two parameters of OHIP-16[M] were computed according to Locker and Quiñonez18 • Prevalence: the percentage of respondents reporting one or more impacts as “very often” or “quite often.” This variable identifies those whose oral health impacts are chronic rather than transitory. • Severity: the sum of the response scores of the 16 items, which considers impacts experienced at all frequency levels. The prevalence and severity values were not normally distributed. Therefore, the Kruskal-Wallis and chisquare tests were used for analyzing continuous and categorical data, respectively. p-value was set at 0.05. All measurements were analyzed using Statistical Package for Science Social version 19.0 (SPSS, Inc, Chicago, IL, USA).