Dry socket is a very painful post op reaction when the blood clot gets dislodged or disappears. If you are just sore and see the blood clot, that's definitely not a dry socket. Of course smoking increases exponentially your chances of developing one. On the other hand, if it has lapsed more than 48 hours from the time of the extraction the chances of developing a dry socket diminishes. Dr Yani
I would go with the option to replace the existing veneers with new ones. There have been a lot of changes in the chemistry of porcelain for veneers and in technology and techniques of cementation. I would not cut down teeth for Crowns unless it is absolutely necessary due to severe cracks, grinding or para-functional habits. The alternative to crown those teeth would be to replace with new veneers and get clear retainers to protect teeth and porcelain veneers. Dr Yani
You can always try to whiten your teeth to match your new whiter crown, through means of doing at home w/ a Take Home Whitening Kit and syringes or do Zoom Whitening in office, which is more controlled the whitening procedure and more predictable results.