Differences between 1-Piece Implants and 2-Piece Implants

by Dental-Pedia
Differences between 1-piece implants and 2-piece implants

The dental implant structure generally consists of three components — the implant, the abutment, and the prosthetic. The implant itself is the component drilled into the jawbone underneath the missing tooth’s socket. The abutment is the connective component between the implant and the prosthetic piece. And the prosthetic is the dental crown or bridge attached to the implant, i.e., the visible component of the entire implant structure. 

This article highlights the differences between 1-piece implants and 2-piece implants to help you choose the ideal implant. 

1-Piece Dental Implants 

1-piece dental implants are those wherein the implant and abutment and fused as a single component, though the prosthetic is still available as a separate component. It doesn’t include a joint, so there are no screws or cemented connections either. The implant inserted during one surgical procedure, making it fairly simple and straightforward. In most cases, the patient can be given the prosthetic or crown the day after the implant, making it extremely convenient.
However, 1-piece dental implants have one major flow — the risk of damage is higher. If the fused abutment is damaged due to an external impact or stress, the entire implant has to be replaced. Since the abutment isn’t a separate component, the dentist can’t simply replace the uppermost part of the implant. Instead, you must undergo another surgical procedure to remove the entire damaged implant and get a new implant.
2-piece dental implants have two separate components - the implant and the abutment.

2-Piece Dental Implants

2-piece dental implants are those wherein the implant and abutment are two separate components. The abutment connects the implant to the prosthetic component, and it can either be screwed or cemented onto the implant. Screwed connections have the risk of the screw loosening, which can lead to complications. Furthermore, 2-piece implants usually necessitate delayed loading — you must wait for several months before receiving the final implant. 

However, 2-piece implants have one major advantage — the implant remains safe at all times. Mechanical stress and other problems can damage the abutment, but the underlying implant remains safe. If the abutment is damaged, you can get it replaced with a simple procedure — the entire implant structure doesn’t have to be replaced. As such, some dentists only provide 2-piece dental implants because they’re deemed safer in the long run. 

More advanced zirconia dental implants have found ways to retain the 2-piece system’s advantages while negating the drawbacks

Important Note: 

Most of the drawbacks mentioned above relate primarily to traditional, screw-retained, titanium dental implants. Some of the more advanced zirconia dental implants have found ways to retain the 2-piece system’s advantages while negating the drawbacks, such as screw loosening and the extended surgical time and sessions. 

New ceramic implant systems have glass-fiber posts that are cemented to the implant, so there’s no risk of screw loosening, one of the biggest drawbacks associated with traditional implants. And zirconia implants are often conducive to immediate prosthetic loading, making them just as convenient as traditional 1-piece implants. 
Please weigh the pros and cons mentioned above carefully to find the ideal implants for you. 

1-Piece Implants
2-Piece Implants
Implant and abutment are fused — no joints or connections. Abutment is or cemented to the implant.
Abutment is cemented to the implant.
Implant Placement
Risk of metallic visibility through the gums
No risk of visibility due to tooth-colored appearance
Prosthetic Placement
The crown or bridge can be placed the next day.
The crown or bridge is placed at least 3 to 6 months after the surgery.
No. Of Sittings 
1 to 2 sittings over two days. 
3 to 4 sittings over multiple months. 
Risk of implant damage, necessitating implant replacement.
Risk of screw loosening, necessitating abutment replacement — the implant remains safe.

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