Introduction: The anterior crossbite is the oral encounter of the mandibular anterior teeth with the maxillary anterior teeth when it is in a central relationship. Objective: To determine the risk factors associated with CAM and what type of treatment is most recommended for the correction of CAM. Methodology: For this article we began the search for the information for which we accessed the following databases, PubMed, ESCOPUS, EBSCO. Results: The crossbite initially showed promise with the use of an acrylic adhesive palatine expander that, after fixation and coinciding with the replacement of the maxillary incisor and a reflex anterior sclera, was corrected with masking. The goal of correcting cross-over defects at an early age is to allow improvement of type III bone pattern and reduce the amount of dental compensation and bone misalignment typically associated with severe skeletal abnormalities in childhood; however, the inferiority is long treatment time depending on the types of treatments we are going to use. Conclusions: It is concluded that there must be an early diagnosis so that in this way an early treatment is carried out and thus future problems can be avoided, in such a way that it is necessary to comply with different factors to perform some type of treatment that the patient requires.