Journal article
Comparison of two dental implant surface modifications on implants with same macrodesign: an experimental study in the pelvic sheep model.
- Ernst S Musculoskeletal Research Unit (MRSU), Vetsuisse Faculty ZH, Equine Hospital, University of Zurich, Zurich, Switzerland.
- Stübinger S Musculoskeletal Research Unit (MRSU), Vetsuisse Faculty ZH, Equine Hospital, University of Zurich, Zurich, Switzerland.
- Schüpbach P Research Laboratory for Microscopy and Histology, Horgen, Switzerland.
- Sidler M Musculoskeletal Research Unit (MRSU), Vetsuisse Faculty ZH, Equine Hospital, University of Zurich, Zurich, Switzerland.
- Klein K Musculoskeletal Research Unit (MRSU), Vetsuisse Faculty ZH, Equine Hospital, University of Zurich, Zurich, Switzerland.
- Ferguson SJ Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.
- von Rechenberg B Musculoskeletal Research Unit (MRSU), Vetsuisse Faculty ZH, Equine Hospital, University of Zurich, Zurich, Switzerland.
- 2014-06-24
Published in:
- Clinical oral implants research. - 2015
SEM backscatter
bone‐to‐implant contact
dental implants
osseointegration
removal torque test
resonance frequency
sheep
surface
Animals
Dental Implants
Dental Prosthesis Design
Female
Implants, Experimental
Materials Testing
Microscopy, Electron, Scanning
Osseointegration
Pelvic Bones
Random Allocation
Sheep, Domestic
Surface Properties
Titanium
Torque
X-Ray Microtomography
English
OBJECTIVES
The aim of this study was to compare two different surfaces of one uniform macro-implant design in order to focus exclusively on the osseointegration properties after 2, 4 and 8 weeks and to discuss the animal model chosen.
MATERIAL AND METHODS
In six mature sheep, n = 36 implants with a highly crystalline and phosphate-enriched anodized titanium oxide surface (TiU) and n = 36 implants with a hydrophilic, sandblasted, large grit and acid-etched surface (SLA) were placed in the pelvic bone. TiU implants were custom-made to match the SLA implant design. The implant stability and bone-to-implant contact (BIC) were assessed by resonance frequency (ISQ), backscatter scanning electron microscopy (B-SEM), light microscopy (LM), micro-CT and intravital fluorochrome staining. Biomechanical removal torque testing was performed.
RESULTS
Overall, no statistically significant differences in BIC total (trabecular + cortical) between TiU and SLA were found via LM and B-SEM. BIC values (B-SEM; LM) in both groups revealed a steady rise in trabecular bone attachment to the implant surface after 2, 4 and 8 weeks. In the 2- to 4-week time interval in the TiU group (P = 0.005) as well as in the SLA group (P = 0.01), a statistically significant increase in BIC trabecular could be observed via LM. B-SEM values confirmed the statistically significant increase for TiU (P = 0.001). In both groups, BIC trabecular values after 8 weeks were significantly higher (P ≤ 0.05) than after 2 weeks (B-SEM; LM). Biomechanical data confirmed the histological data.
CONCLUSION
The two surfaces proved comparable osseointegration in this sheep model.
The aim of this study was to compare two different surfaces of one uniform macro-implant design in order to focus exclusively on the osseointegration properties after 2, 4 and 8 weeks and to discuss the animal model chosen.
MATERIAL AND METHODS
In six mature sheep, n = 36 implants with a highly crystalline and phosphate-enriched anodized titanium oxide surface (TiU) and n = 36 implants with a hydrophilic, sandblasted, large grit and acid-etched surface (SLA) were placed in the pelvic bone. TiU implants were custom-made to match the SLA implant design. The implant stability and bone-to-implant contact (BIC) were assessed by resonance frequency (ISQ), backscatter scanning electron microscopy (B-SEM), light microscopy (LM), micro-CT and intravital fluorochrome staining. Biomechanical removal torque testing was performed.
RESULTS
Overall, no statistically significant differences in BIC total (trabecular + cortical) between TiU and SLA were found via LM and B-SEM. BIC values (B-SEM; LM) in both groups revealed a steady rise in trabecular bone attachment to the implant surface after 2, 4 and 8 weeks. In the 2- to 4-week time interval in the TiU group (P = 0.005) as well as in the SLA group (P = 0.01), a statistically significant increase in BIC trabecular could be observed via LM. B-SEM values confirmed the statistically significant increase for TiU (P = 0.001). In both groups, BIC trabecular values after 8 weeks were significantly higher (P ≤ 0.05) than after 2 weeks (B-SEM; LM). Biomechanical data confirmed the histological data.
CONCLUSION
The two surfaces proved comparable osseointegration in this sheep model.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/clr.12411
- PMID 24954017
- Persistent URL
- https://folia.unifr.ch/global/documents/296301
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