María Trinidad Guerrero LehuedéAndrea Ormeño Quintana2026-03-222026-03-222021https://andeanlibrary.org/handle/123456789/71326Introduction: Pre-eruptive intracoronal resorption (PEIR) anomaly is an abnormal radiolucent area, defined margins, within the dentin tissue near the enamel-dentin junction of non-erupted teeth. Clinical importance lies in the fact that they generally manifest as carious lesions on radiographs of clinically healthy and erupted teeth of children who present a tooth with pain and / or infection. Objective of this research: to describe the dental management of the central incisor with PEIR in infants. Clinical case: Informed consent signed. Female patient, 11 months old, no systemic history, consults about an erupted central incisor with spot, without reports of trauma. On clinical examination, tooth 61 is caries-free, vascularized tissue visible through undamaged enamel on buccal aspect. Periapical X-ray reveals a smooth surface cavity projected in the pulp chamber, thin root walls and apical third of the root in development. A possible PEIR diagnosis is reported, oral hygiene instruction is carried out, the need for caries and dentoalveolar trauma prevention is emphasized and a follow-up appointment is made in three months. Two months later, the mother consulted for disappearance of red spot after trauma to the oral area that occurred 2 weeks ago, patient without discomfort. Radiographically, widened apical periodontal line was observed. Periodic clinical and radiographic control was performed. Conclusions: In the presence of PEIR in the primary anterior tooth, it is advisable to be aware of abnormalities in molars. Although the treatment should seek to preserve the affected tooth, the individual characteristics of the patient and the tooth should be considered for decision-making.esMedicineDentistryMolarMaxillary central incisorDentinEnamel paintDental traumaRadiodensityDental anatomyPulp (tooth)article