Sucking is an innate reflex present from intrauterine life. Through sucking, children come into contact with the outside world, satisfying their emotional and nutritional needs. The use of pacifiers is a common habit among children, and it is supported by the American Academy of Pediatrics due to its beneficial effects during the first six months of life. Pacifiers have a soothing effect, promote pain relief, and reduce the risk of sudden infant death syndrome. However, excessive use can cause changes in the occlusion of primary teeth, which can persist into permanent dentition. The presence and severity of oral and dental problems associated with pacifier use depend on the duration, frequency, and intensity of the habit, as well as its position in the child's mouth, the age at which the child stops the habit, and the growth pattern and degree of hypotonicity of the orofacial muscles. There is insufficient evidence to support the concept that there are differences in the incidence of malocclusions between children who used orthodontic or conventional types of pacifiers. However, it has been observed that the prevalence of malocclusions is higher among children who used pacifiers compared to children without this habit, regardless of the pacifier's shape.