I verecently had all my teeth extracted for dentures ,age 76. I have had a bit of trouble with the dentures not fitting correctly as they seem to fall out when I eat so I have been eating the last two weeks with them out and have not had a real issue however, this morning I woke up to the rood of my mouth being sore,soreness when I touch the roof with my tongue ,I cannot recall eating anything too hot. I do have a mouthwash that was prescribed to me..not sure if that could be a cause due to the ingredients possibly.