Effects of conventional and orthodontic pacifiers on the dental occlusion of children aged 24-36 months old.

Aim To investigate the effects of conventional and orthodontic pacifiers on the prevalence of malocclusion ( MO) considering frequency, duration, and intensity of the sucking habit. Design Data were collected at three time-points: birth, T1; (12-24 months old), T2; (24-36 months old), T3 and were divided into three groups: control ( GC; 110), without non-nutritive sucking habits; orthodontic pacifiers ( GOrth; 55); conventional pacifiers ( GConv; 55). A questionnaire was applied. Clinical examination was performed at T3. The groups were compared as to the prevalence and severity of anterior open bite ( AOB), accentuated overjet, anterior crossbite, posterior crossbite ( PCB). Results The use of pacifiers was associated with occurrence of MO compared to GC ( P < 0.05). Frequency, intensity, and duration of pacifier use was also associated with of MO. There was significant difference in the prevalence of MO between GConv and GOrth for AOB ( P = 0.027). Only GConv exhibited higher odds of PCB compared to GC ( P = 0.040). The prevalence of MO was significantly higher in pacifiers users ( P < 0.001). Conclusion The prevalence of MO was higher among children who used pacifiers. According to a general trend, the use of conventional pacifiers was associated to severe anterior open bite and overjet. [ABSTRACT FROM AUTHOR]