680. A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous___________? September 27, 2025 by Admin A. Maxillary central incisor B. Mandibular lateral incisor C. Maxillary lateral incisor D. Maxillary canine ✅ The correct answer is option D. Maxillary canine.