Which of the following laser is used for pulpotomy?

Laser Pulpotomy In 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. Textbook of Pedodontics Shobha Tandon Ed 2nd P;346