You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Babu, a 7½ years old child, reports with a fracture of
central incisor with an open apex, there is large pulpal
exposure. The treatment of choice is: and explain in detail?
The Cvek Pulpotomy on Immature Permanent Teeth
Pulpotomy is an established technique for preserving vital pulp functions in immature teeth that have been subject to pulp-exposing trauma. Inflammation is confined to the surface 2 to 3 mm of the pulp, when it is traumatically exposed and left untreated for up to 168 hours. 
In a classic report, Cvek described a pulpotomy technique in which only the superficial 2 to 3 mm of hyperplastic inflamed tissue was removed with a water-cooled, high-speed diamond bur to place the wound in a healthy site. Hemostasis was then secured before capping with an appropriate material. 
Hemostasis was obtained with saline, and a pulp cap of calcium hydroxide was overlaid with a sealing coronal restoration.
Reference: Cohen Pathways of Pulp 11th ed page no e31