Regardless if you have a cement or screw-retained dental implant crown, a common complication is that the crown may sometimes come off. So what should you do if your dental implant crown dropped out?

In the case of cemented crowns, the problem could be due to one of four possibilities. The first is the cementation of the crown onto the dental implant abutment. Under normal usage, the forces exerted on the implant crown during function may lead to failure of the cement layer. This layer holds the crown onto the implant abutment. Assuming that the dental abutment and crown have been designed correctly, the crown and the implant can be cleaned. The crown can then be recemented.

Sometimes the implant abutments are not designed with sufficient retenton and resistance form. This is usually is due to the walls of the implant abutments being too short or too tapered. The implant crown cannot securely grip the implant abutment.

In these instances, if the crown is recemented, it will just fall out again. The implant abutments need to be properly redesigned and remade. A new dental implant crown will also be needed.

Another possibility is that the implant abutment screw connecting the abutment to the implant fixture may break. If the screw fragment can be removed from the implant fixture, and the dental implant crown and the implant fixture are not damaged, a new implant abutment screw can be inserted, and the implant abutment securely bolted to the implant fixture.

The last possibility is that the dental implant crown split into two or more parts. In this situation, a new implant crown will need to be fabricated and delivered to the patient.

For screw-retained crowns, the failure can also take place at one of three points. Firstly, the implant abutment screw can fracture, leading to dislodgment of the dental implant crown. Similar as to with the cemented implant crowns, if the crown and the implant fixture are undamaged, the implant abutment screw can be replaced.

If a titanium base is used, it may debond from the implant crown. If the crown is intact, the crown and the titanium base can be cleaned and bonded together again. If the crown has damaged, it will need to be remade.

Lastly, the implant crown may have suffered a catastrophic fracture. A new implant crown would need to be fabricated and inserted.

If you are experiencing a problem with your implant crown, Contact Us to schedule an appointment to learn what treatment options are available to you.