Gregory Bowen, DDS

Try screwing the healing cap back in... It will keep the gum from growing over the implant and causing you an additional appt to uncover it again.

The three porcelain systems you mentioned differ in chemical composition. Procera, the oldest is, is aluminum oxide with conventional feldspathic porcelain fired over the alu-oxide core. It is indicated in single tooth applications only and has largely been replaced by Emax which is lithium disilicate. This material has been out for a few years and is rapidly becoming the industry standard. It is very esthetic and has excellent strength. The hardest porcelain for dental applications is Zirconium oxide. You may have heard of BruxZir crowns. I saw a promotional video where one of these crowns was driven into a 2x4 block of wood with a hammer and didn't fracture. It is indicated in bridgework and people who severely grind their teeth. Although the new translucent zirconium is more esthetic Emax is probably the best blend of strength and beauty!

What you are seeing is root canal sealer that is expressed out of the root canal system at the time it was filled. An abscess would be a black or dark gray radiolucency. Root canal sealer has a substance added to it to appear white on an X-ray or radio opaque so that we can verify complete fill of the root canal system

Ask your dentist about home whitening. You will at least get to a lighter color. and then, if your bonding or fillings don't look good you can replace them, matching the new lighter color. Hope this helps....

I agree with Dr. Brian... Your bite is off and your grinding or clenching at night. Go back to your dentist and have him adjust your bite