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
On the basis of type of well as duration of Cervical 1/3 root fracture is splinted for 
Select and explain. 
A. Rigid 3 months, B. Rigid 6-8 weeks, C. Flexible 3 months, D. Flexible 6-8 weeks
D: Flexible 6-8 weeks
Answer: D: Flexible 6-8 weeks 
Explanation: Splinting should always be semirigid or flexible to prevent ankylosis