Hi,
Firstly, I hope the pain has been resolved? Drifting of teeth with age is commonly associated with gum disease and the bone levels getting lower. This results in gaps between the teeth which were not previously there. The most important thing is to make sure you see your dentist regularly to ensure good gum health.
With regards to the spacings, here are the various options, depending on the location of the gap and the size
1) Composite bonding - placing tooth-coloured fillings on the sides of the teeth to close up the gaps. This will make the teeth look larger so if you already have broad sized teeth, this option may not look so aesthetic.
2) Crowns/Veneers or other restorative means
3) Using a hawley retainer (a plastic plate with a wire on the outside) or clear aligners to close up the gaps without having to do a filling. These are removable so you need to take it out to eat and when you brush your teeth.
4) Braces
A dentist or orthodontist will be able to advise you better after a clinical assessment of your teeth and bite.
Hope this helps!
Warm regards,
Dr Geraldine Lee
Orthodontist