You can clean your teeth with your forefinger..all you do is put some toothpaste on your finger and a bit of water and then just rub it over your gums and rinse, its quite easy..would your OH be able to do this? I would recommend retardex toothpaste(i must get some myself!) as it gets rid of any sulphur breath...maybe your OH gums have become sensitive or it could be that he just doesn't like the textures any more..this illness does seem to have that effect in many different ways...I might have just given you the most rubbish advice or it might help? we have to try whatever we can ,don't we...?