Is titanium implants more radiopaque than zirconia or not?

Dental implants should be placed 1.5-2 mm away from a natural tooth to prevent damage to the tooth/ it's ligament. You should see your dentist to evaluate the tooth and rule out infection around the implant.  

Yes, it is possible to place 4 individual implants in the front to replace 4 teeth. But it is usually not necessary to do that. Doing two implants and a bridge works very well for most patients.

SNAPINDENTURES OR ALL ON4 , BY NOBEL BIOCARE. There are 2 ways of restoring this , the first one could be with Snapindentures,  with 8 minimplants, upper and 8 minimplants lower,  you will have a strong support with  snapindentures,   and you will have a great result within a couple of days...

Hi, thanks for write... No problem with that, just keep cleaning and take x rays 1 or 2 times at year to evaluate. Good luck. 

An implant stabilized denture (usually with 2 implants) can greatly improve your comfort with the denture, especially if the denture base fits correctly.  The implants will decrease the movement of the denture with chewing and take some of the stress off of your gum tissue.  An implant...

Just repeat same statement to your doctor, sedation is not at all required in your case as u r comfortable in dental office.