Dental impaction or transposition are disorders related to ectopic eruption or failure in tooth eruption, which can affect child physical, mental, and social development. This condition compromises face aesthetics, phonation, and masticatory function. The cause of impaction may vary from physical obstruction in the path of eruption, tooth material arch length discrepancy to malformation of the tooth, but supernumerary teeth are the leading cause. Failure of eruption of maxillary incisors requires early diagnosis and proper treatment planning. General principles of management of the condition include removal of physical obstruction, creation of space, and surgical exposure with or without traction. The rationale of the 2x4 orthodontic treatment of an unerupted tooth depends upon its age, position, etiology, and amount of space in the dental arch. It under the category of interceptive orthodontic procedure to prevent malocclusion near future. The present case report elaborates on case of incisor impaction with different aetiologies and varying ranges of complexity. However, it's far frequently important to continue with a surgical–orthodontic treatment. The inclination of teeth in relation to the midline and the root maturation degree determine prognosis and therapeutic timing. Thus, we are describing a case of 10 yrs. old child with, class 1 molar relationship bilaterally with missing maxillary right central incisor.
Key words: Impacted incisor, supernumerary teeth, interceptive orthodontics, two by four orthodontic appliance
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