Should have read
"The chips were made with a hollow adhesive reservoir under the inlays.
Mine had been drilled thru the adhesive reservoir. David had repaired it perfectly."

This adhesive reservoir is a few microns deep, routered into the chip, to accept the adhesive for the inlay. It does not go through the chip. It shows up on the xray in a unique manner and cant be confused with anything else.

Hope that clears that one up!