Last month, it was revealed that Lindsay was paid $1 million to pose nude for Hugh Hefner's Playboy.
"It was an opportunity for her," Dina said in an interview with The Insider. "She's 25 years old now, so it was her ultimate decision. It will be tastefully done."
Dina, who recently denied that she would be writing a tell-all book about her children, has apparently seen the photos from the shoot.
She added that Lindsay was "great in front of the camera".
Lindsay's Playboy shoot reportedly delayed her jail sentence for probation violation.
In 2008, Lindsay was offered the chance to pose nude for Playboy but turned it down.
The actress's representative said: "If there's nudity, the answer is no. She's not going down that road again."
Watch Lindsay Lohan's sentence in court on Wednesday (November 2) below: