Dental Implants Made in China or Asia?

While each dentist has their own overhead and may use many labs, the fees do not fluctuate.  If you are on a PPO plan, the fees are set by the plan and cannot be changed.  If lab outsources some labor to China, their fees are not significantly different, so not much of a savings to pass on.

If you don't trust your dentist, there are bigger issues.  If you really want to know, ask your dentist to see the lab slip.  However, some dentists don't know that their local lab outsourced some of their work and can produce a lab slip from a local lab, yet some of the work was done in Asia.

If you see a dentist and the fees are REALLY low, then a Chinese lab is likely involved.  If the fees are normal or high for the area, the odds of a Chinese lab are less.  Maybe.

As long as you surgeon is using a legitimate known manufacturer, then there is no issue with the dental Implants themselves. I generally use Nobel Biocare Implants because of the decades of research the company has published and they back their products.  Nobel is the Largest manufacturer in the world, they cost more than most others but my patients deserve the best and that's what they get.  I also use Biohorizons which have a great deal of research behind them.  At any rate as I mentioned above as long as the implants are not from a cut rate fly by night company ( which you need to be aware that there are many) you should be fine.  The problem you speak of is actually with any lab work done overseas, particularly Asia.  Usually crowns are made of porcelain fused to a gold substructure.  There are other metals mixed with the gold for durability. Overseas labs have no quality control and often are high in nickel which can cause allergies and may even contain lead. Overseas labs are much cheaper than US labs which is why some doctors choose to use them, but you get what you pay for. 

As far as the actual implant itself, as long as it is a major brand ( Astra, Zimmer, Straumann, are examples) the quality standards are very high and you don't need to worry about where they manufacture their products. Custom abutments and crowns are another matter. I would be very cautious of implant crowns at the low end of the price range for your area. Often these are porcelain fused to metal crowns which contain nickel instead of a precious metal such as gold. The issue with nickel is that many people, particularly women, are allergic to it. This increases the chances of problems later on. These are the types of crowns that are frequently made offshore for a very low cost and with questionable quality. Ask your dentist where lab work is sent.