Hey,
The procedure for smile designing goes like,
1.Initial Impression
2. Wax Up- This happens in the lab so you dint have to visit for this.
3. Wax up trial- This will show you how your final smile would turn out. It is here where you can discuss about what changes you would like if at all.
4. Preparation- After all the alterations in wax up, and after you are satisfied with the outcome of how final is goin to look, the teeth are prepared (a little trimming) for the final crowns.
5. Try In- The Final crowns are then put on tooth and shown to you.
6. Bonding/Cementation- The final crowns are bonded.
Now, you are all ready to flash that new smile with all the confidence.
As for which crowns are good, i would suggest Emax crowns but it depends on what are your needs and how you want them.
You and your dentist can discuss about this and finalise.
Next Steps
Briefly discuss with your dentist about everything and then proceed.