<prompt> Cementum covers resected root end in:12 days20 days28 days8 weeks  <response>: Proliferation of granulation tissue from the severed PDL was observed at 4 days, and the tissue had completely encapsulated the root end at 8 days. In the experimental groups, cementum deposition was observed at 12 days, and by 16 days, cementum covered more than 50 of the surface areas of the resected root ends. The complete healing will take around 4 weeks. 