James Burkholder, DDS

Joel, 

We make All on 4 bridges out of two different materials, and both can be very natural looking:

1)  Acrylic fused to a titanium frame:  Very nice looking, but over the years the acrylic can chip and wear and require repair and replacement. 2) Zirconia:  Very strong and seldom chips or needs repair - currently cost more than the acrylic.

ZommBrii,

It sounds like the new crown may be high, or touching the opposing tooth too soon.    Sometimes, just cleaning out an old filling, and doing a crown preparation can make the tooth sensitive which can subside over time.  I would recommend seeing your dentist immediately, and let them adjust the bite on the new crown.  Also,teeth that persist in being sensitive over a long period can require a root canal. 

Luke, Sometimes the bicuspid behind the missing cuspid can be reshaped and moved into the proper position with orthodontics (braces).  Also, porcelain veneers can be used to change the appearance.  It looks like the lowers are crowded - there is a space issue.  I would see a dentist that works closely with an orthodontist and let them work out a plan to alleviate the crowding and esthetic issues with the missing teeth.  

Kiranaleem, Most molars that have had root canals need a crown to protect the tooth from cracking.  You could have a temporary crown placed on the tooth to protect it now.  Then, in several weeks if the pain is still there, see a root canal specialist for his opinion.  I would not place the permanent crown if the tooth is still having symptoms.

Jasti, The only reason you would want to splint crowns together is if the teeth were mobile or slightly loose.  This treatment is considered as a last resort to save teeth, but can be risky as you could lose one of the teeth, and the crowns may have to be remade.  If your teeth are solid and without periodontal disease, then the crowns should be made separately.  Please see your dentist and ask their opinion.