Whether we are 15 or 85, kissing makes us forget everything around us.

While there is no indication that making out is any less exciting in old age, it may feel a little less natural once dentures are involved.

Even late in life there can be a first time, e.g. the first time kissing someone with false teeth.

If you've just started to wear dentures, there might be a lot of questions on your mind: Is kissing now less joyous? Will the other person notice?

Can the "third" set of teeth fall out when the kissing gets too passionate?

Exactly how kissing changes when a denture is involved cannot be easily answered, according to Professor Dr Sebastian Hahnel, director of the Polyclinic for Dental Prosthetics at the university hospital in Germany's Regensburg.

"There is very little research on this in dentistry," the dentist concedes.

He believes that the switch from fixed to removable teeth may be noticeable when kissing.

"But I don't think that kissing changes significantly with age," he adds.

What's decisive is the type of denture.