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
In a preadolescent child, the maximum midline diastema that will be closed spontaneously after canine eruption: 
Select and explain. 
A. 1 mm, B. 2 mm, C. 4 mm, D. 5 mm
B: 2 mm
Answer: B: 2 mm 
Explanation: The maximum midline diastema that will be closed spontaneously after canine eruption is not more than 2 mm. 
This is an example of transient malocclusion.