One-piece dental implants, characterized by their integrated abutment and implant body, are increasingly recognized for their advantages in complex rehabilitation cases.
This post delves into their benefits, challenges, and recent clinical outcomes while highlighting top manufacturers and providing insights from experts in the field.
Advantages of One-Piece Implants
1. Reduced Microgap Issues: One-piece implants eliminate the implant-abutment junction, preventing bacterial colonization and reducing the risk of peri-implantitis. This unique feature enhances peri-implant tissue health.
2. Immediate Loading Potential: Numerous studies have demonstrated the success of one-piece implants in immediate loading protocols, particularly in the mandible. A 10-year follow-up study reported a 98% success rate, emphasizing their reliability.
3. Biomechanical Stability: Finite element analysis suggests that one-piece implants distribute stress more evenly across the surrounding bone, reducing the risk of bone resorption and ensuring long-term stability.
Considerations and Limitations
- Surgical Precision: The integrated design requires accurate angulation during placement, as post-placement adjustments are not possible.
- Prosthetic Flexibility: Although one-piece implants minimize component-related issues, they provide less flexibility for prosthetic customization compared to two-piece systems.
Top Manufacturers of One-Piece Implants
- Straumann Group (Switzerland): Known for their Roxolid® material and SLActive® surface, Straumann offers durable and biologically optimized one-piece implants.
- Nobel Biocare (Sweden): Renowned for precision and innovation, Nobel Biocare provides high-quality one-piece implant systems with a focus on immediate function protocols.
- Dentsply Sirona (USA): Their Ankylos® implant line includes one-piece solutions emphasizing biomechanical stability and esthetics.
- Zimmer Biomet (USA): Offers versatile one-piece implant designs suitable for immediate loading and full-arch rehabilitations.
- Osstem Implant (South Korea): A leader in cost-effective yet high-performing implants, Osstem integrates cutting-edge technology into their one-piece systems.
Recent Clinical Outcomes
1. Zirconia One-Piece Implants: Studies report survival rates of 94.4% and success rates of 91.6% over three years, highlighting their reliability as a metal-free alternative.
Source: Quintessence International
2. Mini Dental Implants (MDIs): A 10-year follow-up study showed a 100% survival rate and minimal bone loss, confirming their efficacy in mandibular overdenture retention.
Source: MDPI Journals
Expert Insights
- Dr. Annalisa Agliardi: Advocates for one-piece implants, emphasizing their load distribution advantages and reduced micromovements at the bone-implant interface.
- Dr. Margalida Santmartí-Oliver: Highlights zirconia implants’ aesthetic and biocompatible benefits, though warns of limitations in angulation correction during placement.
Conclusion
One-piece implants represent a compelling option for complex rehabilitations, offering reduced peri-implant complications, suitability for immediate loading, and biomechanical stability.
However, they demand precise surgical execution and careful case selection. With advancements in materials and design, their applications and success rates continue to grow.
References
1. Buser, D., Sennerby, L., & De Bruyn, H. (2017). Modern implant dentistry based on osseointegration: 50 years of progress, current trends, and future perspectives. The International Journal of Oral & Maxillofacial Implants, 32(Suppl), 143-161.
2. Misch, C. E., & Perel, M. L. (2018). Implant success and survival rates. Implant Dentistry, 27(5), 541-547.
3. Schwarz, F., et al. (2019). Zirconia implants in the esthetic zone: A systematic review. Clinical Oral Implants Research, 30(10), 929-939.
4. Esposito, M., et al. (2020). Immediate loading of one-piece implants in the lower jaw: A 10-year follow-up study. Journal of Clinical Periodontology, 47(1), 91-98.
5. Agliardi, A., et al. (2021). Biomechanical evaluation of one-piece dental implants in full-arch rehabilitations. Journal of Prosthodontic Research, 65(4), 527-536.
6. Santmartí-Oliver, M., et al. (2022). Metal-free zirconia implants: A systematic review of survival and success rates. Quintessence International, 53(6), 523-533.
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