After another extraction this afternoon DH now has all three upper molars missing - something to do with bone decay, I'm a bit hazy about details... He's very good at cleaning his teeth, honest 
Dentist said that dentures might be difficult due to the lack of healthy bone (?), suggested implants as possibility, but I have just googled these and nearly fallen off chair in horror. We absolutely cannot afford this.
So we wanted to ask whether it would cause him major problems to leave these teeth missing? Or for any advice at all really. Thanks...