welcome hardin!

i hope your symptoms have resolved the last month, if not, you probably should go see an ear, nose and throat specialist. yes, a dental implant can perforate the sinuses. the most likely outcome of this is an infection of your sinuses. i didn't read anything that mentioned materials staying in the sinuses, unless you mean the pin inserted into your jaw to hold your implanted tooth staying in the sinus cavity once it pierced it.

some other symptoms of a pierced sinus cavity are:

healthline website.

if you're still having problems, i suggest seeing the ent specialist.

hope this has been helpful!
jeannie