A solitary hypoplastic defect in this dentition is located on the facial surface of a permanent maxillary central incisor. The most likely cause of this defect is

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Hypoplastic defects in a patient's dentition are indicative of physical injury of the primary teeth. A dietary deficiency during tooth formation would not typically appear in only one tooth. This description is not indicative of an absence of the primary mandibular central incisor. This description is not characteristic of neonatal hypoplasia of the primary anterior tooth.

A Solitary Hypoplastic Defect in This Dentition Is Located on the Facial