Figure 1. A. Large midline diastema between the maxillary incisors of a 9-year-old male. The mandibular incisors also exhibit spacing and overretained primary central incisors. B. Panoramic radiograph confirms agenesis of the maxillary permanent lateral incisors (the clinical midline diastema), the mandibular central incisors, and the mandibular left second premolar. Arrows point to the sites of permanent tooth agenesis.
