This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
The permanent anterior tooth, which is most commonly atypical, is: 
Select and explain. 
A. Maxillary central incisor, B. Maxillary lateral incisor, C. Mandibular central incisor, D. Mandibular 1st premolar
B: Maxillary lateral incisor
Answer: B: Maxillary lateral incisor 
Explanation: None