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
[{'content': 'Which of the following laser is used for pulpotomy? \nSelect and explain. \nA. CO2 laser, B. Nd:YAG, C. Er:YAG, D. Diode', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Laser Pulpotomy\nIn an effort to find a more biologically acceptable and effective alternative to formocresol, other agents and techniques have been examined. Non pharmacologic hemostatic techniques for the pulpotomy procedure, such as electrosurgery and laser therapy have been suggested. Jeng-fen Liu et al in 1999, studied the effects of Nd:YAG laser for pulpotomy in primary teeth and noted 100% success with no signs or symptoms, and only one tooth had internal root resorption at the six months follow up visit.\nTextbook of Pedodontics Shobha Tandon Ed 2nd P;346', 'role': 'assistant'}]