BARTOW, Fla. (AP) - The mother of a 9-year-old Lakeland boy who was critically injured when he detonated a grenade inside his home has been sentenced to a year of probation.

Thirty-nine year-old Anne Marie Weise was sentenced Tuesday after pleading no contest to contributing to the delinquency or dependency of a minor. She had faced a felony neglect charge.

Her son was playing with a grenade stuffed with firecracker powder at his home in February when it exploded. The explosion ripped through the roof of his mouth, knocked out teeth and blew off most of his nose. He also lost two fingers. The boy told authorities he and his dad tried to light the grenade in July 2009, but it was a dud so they forgot about it.

His father also faces charges.