Aspergillosis is an infectious opportunist disease, caused by a fungus that is normally in the air, infections can be very aggressive if isn’t diagnosed and treated on time. It mostly enters to the system by breathing, so it spreads on lungs and even brain. In this case, four dental implants are placed in the maxilla, the implants were displaced to the maxillary sinus in both sides, and it generates a bilateral sinusitis as a the first clinical sign. A Cadwell-Luc technique was used to remove the implants. In the case of the left sinus, a fungus growing in the implants was observed during the extraction procedure. The fungus was cultivated and identified as Aspergillus terreus, that don’t let the wound heal properly after the surgery.