Did Steve Carell really have hair restoration through plastic surgery?

The rumor of Steve Carell Plastic Surgery began spreading when some people saw him at Oscar 2015 with awesome hair

Steve Carell, a popular comedian, went through a hair loss phase. If you look at his latest appearance, he seems to be free from the baldness. 

Steve Carell Hair Transplant Before and After 

What do you think of Steve Carell’s new appearance? Did he look like having hair transplant?