Shock Absorption Capacity of High-Performance Polymers for Dental Implant-Supported Restorations: In Vitro Study
Open accessAbstract
Background: Restorative materials might significantly affect load transmission in peri-implant bone. The aim of the present study is to evaluate the shock absorption capacity of two different polymeric materials to be used for implant-supported prostheses. Methods: A masticatory robot was used to compare the shock absorption capacity of veneered and non-veneered polyetherketoneketone (PEKK), Pekkton®ivory (Cendres+Mètaux), and the glass fiber-reinforced composite (GFRC), TRINIATM (Bicon). Five identical sample crowns for each of the three groups were tested. Forces transmitted at the simulated peri-implant bone were recorded and statistically analyzed. Results: The statistical analysis of forces transmitted at the simulated dental implant revealed significant differences between the materials tested and between these materials and zirconia, glass ceramic, composite resin, and acrylic resin. Only differences between PEKK and veneered PEKK and between PEKK and one of the previously tested composite resins were not statistically significant. PEKK samples demonstrated significantly greater shock absorption capacity compared to GFRC. Conclusions: PEKK revealed optimal shock absorption capacity. Further studies are needed to evaluate its efficacy in the case of long-span prostheses with reduced prosthetic volume.
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Single-unit zirconia crowns offer excellent tissue biocompatibility, high mechanical strength, and reliable digital processing capabilities.
“This material offers excellent tissue biocompatibility, high mechanical strength, and reliable digital processing capabilities [27–29].”
From Implant-supported fixed prosthodontic treatment for ectodermal dysplasia: a case report (2026) · cites this paper as [27]
The Introduction describes zirconia prostheses as having favorable biocompatible and mechanical properties and identifies zirconia as a commonly used CAD-CAM material. It does not specifically establish these properties for single-unit zirconia crowns; the single crowns tested in this study were made of polymers, not zirconia. (LLM, conf=0.82)
Experimental — accuracy not yet measuredAfter appropriate polishing, zirconia surface roughness is lower than that of metal or rough ceramics, reducing plaque accumulation and the risk of peri-implant mucositis.
“After appropriate polishing, the surface roughness is lower than that of metal or rough ceramics, reducing plaque accumulation and the risk of peri-implant mucositis”
From Implant-supported fixed prosthodontic treatment for ectodermal dysplasia: a case report (2026) · cites this paper as [27]
The Introduction discusses zirconia’s biocompatibility and the difficulty of polishing it, but does not compare the roughness of polished zirconia with metal or ceramics. The Methods and Discussion concern shock absorption, not plaque accumulation or peri-implant mucositis; searches for surface roughness, plaque and mucositis found no passage addressing the claim. Page numbers were unavailable in our copy. (LLM, conf=0.76)
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Implant-supported fixed prosthodontic treatment for ectodermal dysplasia: a case report
Wang, Y., Chen, S., & Zhou, Y. (2026) · BMC Oral Health · doi:10.1186/s12903-026-08326-2
“This material offers excellent tissue biocompatibility, high mechanical strength, and reliable digital processing capabilities [27–29].”
- Authors
- Menini, M., Delucchi, F., Bagnasco, F., Baldi, D., Canullo, L., Setti, P., Migliorati, M., Simetti, E., & Pesce, P.
- Affiliations
- Division of Prosthodontics and Implant Prosthodontics, Department of Surgical Sciences (DISC), University of Genova, 16132 Genova, Italy
- University of Genoa (IT)
- Private Practice, 16012 Genova, Italy
- ORCID
- Venue
- Dentistry Journal
- Publisher
- MDPI AG
- Published
- 2024-04-17
- Volume
- 12
- Issue
- 4
- Pages
- 111
- ISSN
- 2304-6767 (ISSN-L)
- PMC
- PMC11048904
- OpenAlex
- W4394918724
- Cited by
- 9
- References
- 47
- Citations by year
- 2026: 4 · 2025: 4 · 2024: 1
- FWCI
- 3.78
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Dentistry Journal (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- CINECA IRIS Institutial Research Information System (University of Genoa) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Cendres+Métaux SA
- Topics
- Health Sciences › Dentistry › Orthodontics › Dental materials and restorations
- Health Sciences › Dentistry › Oral Surgery › Dental Implant Techniques and Outcomes
- Health Sciences › Medicine › Surgery › Orthopaedic implants and arthroplasty
- Keywords
- shock absorption, dental implants, implant-supported prostheses, PEKK, dental crowns, zirconia, composite resin, acrylic resin, high-performance polymers
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