Delayed eruption is the lack of emergence in the mouth of a tooth with more than three-quarters of the root formed. It is often a warning signal to diagnose local or systemic pathologies and, it is also related with socioeconomic factors and the craniofacial morphology of the patient. Its treatment depends mainly on its etiology, for which a detailed clinical history and an extraoral/intraoral physical examination are required. It is also very important to perform a radiographic examination to find out the developmental stage of the roots of the un-erupted tooth. The possibilities to achieve a satisfactory treatment decrease when the roots are fully formed. The purpose of this article is to investigate the etiological factors that cause delayed tooth eruption, how to diagnose it, its possible differential diagnosis, and the therapy to follow. Consequently, an active search with key words “delayed teeth eruption” and “tooth eruption” was conducted, at Pubmed and at the Dentistry School in the Complutense University of Madrid.
(Rev Esp Ortod. 2014;44(4):218-222)