This is the hilarious moment a woman’s teeth fell out while she was playing a game of Speak Out with her family.

The video, shot in Scotland last Christmas, captures the moment the grandmother’s dentures fell out of her mouth as she was trying to make her family guess a sentence while wearing a mouth guard.

“We had all had a go and it was hilarious but it was my gran's turn. Her teeth actually fell out again after this video was taken when she had another go,” the filmer told Newsflare.

“She said she couldn't feel them coming out because of the mouth guard! I have never laughed so much in my life.”

“We woke my 1-year-old up from laughing so much! We never did find out what her card said,” she added.

We were playing 'Speak out' for the first time after Christmas dinner at my mum's house. My parents, brother and girlfriend and son, my triplet sisters, my fiance and daughter and my gran and grandad were there as well as my gran. We had all had a go and it was hilarious but it was my gran's turn. Her teeth actually fell out again after this video was taken when she had another go! She said she couldn't feel them coming out because of the mouth guard! I have never laughed so much in my life. We woke my 1 year old up from laughing so much! We never did find out what her card said!