The Short Answer
For All-on-4 dental implants, screw-retained teeth are usually the safest and most predictable choice. They make it easier to care for your implants long term and eliminate the risk of hidden cement causing inflammation or bone loss.
Cement-retained options still exist, but today they are used far less often and only in very specific situations.
What Do the Terms “Screw-Retained” and “Cement-Retained” Mean?
- Screw-retained All-on-4 : Your new teeth are secured directly to the implants with small screws. No dental cement is placed under the gums.
- Cement-retained implants: The teeth are cemented onto posts that are attached to the implants, similar to how a crown is cemented on a natural tooth.
Both methods can work, but for full-arch implant bridges, the differences matter.
Why Smart Arches Typically Recommends Screw-Retained All-on-4
Easier long-term care : All-on-4 teeth are designed to last many years. With a screw-retained design, your doctor can remove the bridge for maintenance or deep cleaning, fix wear or small repairs, and address inflammation around a single implant without damaging the entire set of teeth. This flexibility becomes increasingly important over time.
It’s also important to understand the type of complications that can occur. Research shows that screw-retained restorations may experience more technical issues, such as screw loosening over time. While inconvenient, these problems are typically easy to fix because the teeth can be removed and resecured.
Cement-retained restorations, by contrast, are more likely to develop biological complications, such as bone loss or implant failure, which are far more difficult to treat once they occur.
Lower risk of inflammation and bone loss : Research shows that leftover cement trapped under the gums can lead to gum inflammation, bone loss, and implant complications. With screw-retained teeth, cement is not used, so this risk is eliminated.
Better fit when space is limited: Many full-arch patients have limited vertical space between the jaws. Screw-retained designs require less space, making them more predictable and durable.
Modern technology solves aesthetic concerns: In the past, some patients worried about seeing a screw hole. Today, angled screw channel technology allows the access point to be hidden on the chewing or tongue side of the teeth, even when implants are placed at an angle.
Are cement-retained implants ever recommended?
In select cases, yes, but with limits. Cement-retained restorations may be considered when the case involves a small number of teeth rather than a full arch, when the edge of the restoration sits at or above the gumline where cement can be fully cleaned, or when a screw access hole would fall directly on the front of a visible tooth.
Even in these situations, cement must be handled with extreme care. For All-on-4, most modern studies and expert reviews recommend screw retention whenever possible.
A simple comparison
| Feature | Screw-Retained Implants | Cement-Retained Implants |
| Removable for maintenance | Yes | Limited |
| Cement-related inflammation risk | None | Documented |
| Long-term flexibility | High | Lower |
| Esthetics | Excellent with modern techniques | Excellent in select cases |
| Common choice for full arches | Yes | Rare |
Note: Screw-retained restorations may require occasional tightening, while cement-retained restorations are more often associated with bone and tissue complications.
What the Published Research Supports
Studies comparing screw-retained and cement-retained full-arch implant restorations show an important distinction between biological and technical complications.
Cement-retained full-arch reconstructions are associated with higher rates of biological complications, including implant loss and marginal bone loss greater than 2 mm. Screw-retained restorations, on the other hand, tend to experience more technical issues, such as screw loosening or screw fracture.
The key difference is how these complications are managed. Because screw-retained prostheses are easily retrievable, technical issues and early biological concerns can usually be corrected before they become serious. For this reason, and because they show better biological compatibility overall, screw-retained full-arch restorations are generally considered the preferred option.
How Smart Arches Approaches Your Care
At Smart Arches, every All-on-4 case is digitally planned, and the retention method is chosen to protect your bone and gums, allow future access if needed, deliver a natural-looking smile, and support your implants for the long term. For most patients, that means screw-retained All-on-4 teeth.
If you’re considering dental implants, our team at Smart Arches is here to help. We offer free initial consultations so you can learn about your options, get personalized recommendations, and see how affordable restoring your smile can be. Take our implant quiz to see if you are eligible, or contact an implant center near you to schedule your visit and take the first step toward a confident, healthy smile that lasts.
Note: While we aim to provide helpful educational information, it’s not a replacement for personalized medical advice from your healthcare team. Please talk with your dentist, physician, or other qualified healthcare provider about your specific situation and treatment options.
