The Success of Subperiostal Implants

Key Takeaways
Assoc. Prof. Ahmet Ferhat Mısır
Written by DentAkademi Editorial Team
Last updated:

Subperiosteal implants are specialized implant systems used in patients with severe bone loss for whom conventional bone-anchored implants are not feasible. In recent years, advancements in digital planning, CAD/CAM design, and 3D manufacturing technologies have brought this implant type back into focus, leading to increased evaluation in scientific studies. The success of subperiosteal implants in the current literature is assessed based on the implant’s ability to remain functional in the oral cavity, patient comfort, and reported complications.

Are Subperiosteal Implants Reliable?

The reliability of subperiosteal implants is evaluated by considering clinical success rates together with reported complications. Recent scientific studies indicate that subperiosteal implants produced using digital planning and 3D manufacturing technologies demonstrate a high capacity to remain functional in the oral cavity in the short to medium term. Clinical data report that the majority of these implants remain stable and usable throughout the follow-up period.

However, reliability assessment is not limited to implant retention alone but also depends on its compatibility with surrounding tissues. Although some studies have reported soft tissue–related complications, most of these issues are associated with soft tissue adaptation rather than the implant–bone relationship itself. Therefore, when appropriate patient selection and accurate surgical planning are applied, subperiosteal implants are considered a successful and reliable treatment option.

How Is the Success of Subperiosteal Implants Evaluated?

The success of subperiosteal implants is not limited to their surgical placement and physical stability. In clinical evaluations, success is assessed using multiple parameters, including the implant’s ability to function in the oral cavity, its compatibility with surrounding tissues, and the level of comfort it provides to the patient. Accordingly, success in subperiosteal implants requires the combined evaluation of both biological and functional criteria.

What Are the Success Criteria?

In scientific studies, implant success is defined by the absence of adverse outcomes such as pain, infection, or implant loss, the stable use of the prosthesis, and the preservation of the patient’s daily quality of life. Particularly in subperiosteal implants, soft tissue compatibility plays a crucial role in success assessment due to the implant’s positioning on the bone surface rather than within the bone.

Success in subperiosteal implants is generally evaluated according to the following criteria:

  • The implant’s ability to maintain function in the oral cavity

  • Absence of severe pain, infection, or implant loss

  • Stable and functional prosthetic restoration

  • Preservation of the patient’s daily living comfort

These criteria aim to demonstrate whether the implant is successful not only surgically, but also from functional and biological perspectives.

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What Do Scientific Studies Say About the Success of Subperiosteal Implants?

Scientific studies evaluating the success of subperiosteal implants provide data on the clinical performance of implants produced using digital planning and 3D printing technologies. One of the most recent and comprehensive studies in this field is a systematic review published in 2024, which assessed the performance of modern subperiosteal implants by synthesizing data from multiple clinical investigations (Anitua, Padilla, & Alkhraisat, 2024).

According to this review, digitally designed and patient-specific subperiosteal implants demonstrate a high capacity to remain functional in the oral cavity during short- and medium-term follow-up periods. The reviewed clinical studies reported that approximately 98% of the implants survived and remained clinically stable (Anitua et al., 2024). This finding provides evidence that subperiosteal implants may be an effective treatment option, particularly in cases with advanced bone resorption.

However, the study also reported the presence of certain complications specific to subperiosteal implants. These mainly included partial implant exposure associated with individual soft tissue adaptation. Such complications are more related to the interaction between the implant and surrounding soft tissues rather than osseous integration (Anitua et al., 2024). In addition, the fact that most available data are based on short- and medium-term outcomes highlights the need for longer follow-up studies to clarify long-term success rates.

These findings indicate that the evaluation of subperiosteal implant success and reliability should consider not only numerical survival rates but also the complication profile and tissue compatibility.

Conclusion

Current scientific evidence indicates that subperiosteal implants produced using modern digital techniques demonstrate a high level of clinical success. In the systematic review published in 2024 evaluating additively manufactured subperiosteal implants, approximately 98% of the implants were reported to remain functional in the oral cavity (Anitua et al., 2024). This high success rate suggests that subperiosteal implants may represent an effective treatment alternative for patients with advanced bone loss and limited conventional implant options.

The high success rate reported in this study reflects not only the surgical feasibility of subperiosteal implants but also their usability in patients’ daily lives. These findings indicate that, with appropriate patient selection and individualized planning, subperiosteal implants can be considered a reliable treatment option.

FAQs About the Success of Subperiosteal Implants

How long do subperiosteal implants last?

Current scientific studies show that subperiosteal implants maintain high functional performance in the short to medium term.

As with any implant type, subperiosteal implants carry a risk of failure. This risk depends on factors such as bone condition, soft tissue quality, and surgical planning.

No. Subperiosteal implants are specialized treatments planned for specific patient groups and are not suitable for every patient.

As with all implant treatments, the risk of failure cannot be completely eliminated. However, reported failure rates are low. Potential complications are generally related to soft tissues and can often be managed if detected early.

Current scientific data indicate that subperiosteal implants provide reliable results in the short to medium term. When planned by experienced clinicians and applied in appropriate cases, subperiosteal implants represent a safe and predictable treatment option.

References

Anitua, E., Padilla, S., & Alkhraisat, M. H. (2024). Clinical performance of additively manufactured subperiosteal implants: A systematic review. International Journal of Implant Dentistry.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10844163/pdf/40729_2024_Article_521.pdf

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