Final answer:
Gemination is the correct term for the dental anomaly represented by the arrows.
Step-by-step explanation:
The arrows are pointing at Gemination. Gemination is a dental anomaly where a single tooth bud splits into two, resulting in a tooth with an enlarged crown and two separate roots. This can give the appearance of two teeth fused together or a groove down the middle of the tooth. It is different from Fusion, which is the union of two separate tooth buds to form a single tooth. The structures in question relate to dental anomalies. When arrows are pointing at a structure involved with the differentiation or development of teeth, these refer to conditions that affect the formation and structure of the dentes (teeth). Dens refers to a single tooth, and dentition refers to the set of teeth within the oral cavity.