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In vitro performance of zirconia and titanium implant/abutment systems for anterior application.
J Dent. 2014 Aug; 42(8):1019-26.JD

Abstract

OBJECTIVES

To investigate the type of failure and fracture resistance behaviour of different zirconia and titanium implant/abutment systems for anterior application.

METHODS

Eight groups of implant-abutment combinations (n=8/system) were restored with identical full-contour zirconia crowns. The systems represented one-piece and multi-piece zirconia (Z) or titanium (T) implants/abutments with different types of connection (screwed=S, bonded=B). The following combinations (implant-abutment-connection) were investigated: ZZS, ZZB, ZZZB (three-piece), ZTS, TTS, TTS reference, and Z (one-piece, 2×). To simulate clinical anterior loading situations the specimens were mounted into the chewing simulator at an angle of 135° and subjected to thermal cycling (2×3000×5°/55°C) and mechanical loading (1.2×10(6)×50N; 1.6Hz). Fracture resistance and maximum bending stress were determined for all specimens that survived ageing. Data were statistically analyzed with the Kolmogorov-Smirnov-test and one-way ANOVA (α=0.05). Survival performance was calculated with the Kaplan-Meier Log-Rank test.

RESULTS

Independent of the material combinations screwed systems showed partly failures of the screws during simulation (ZZS: 3×, ZTS: 8×, TTS: 3×). Screw failures were combined with implant/abutment fractures of zirconia systems. Zirconia one-piece implants and the reference system did not show any failures, and only one specimen of the systems with a bonded connection (ZZZB) fractured. Mean (±standard deviation) fracture forces and maximum bending stresses differed significantly (p=0.000) between 187.4±42.0N/250.0±56.0N/mm(2) (ZZZB) and 524.3±43.1N/753.0±61.0N/mm(2) (Z).

CONCLUSIONS

Both material (zirconia or titanium) and the type of connection influenced failure resistance during fatigue testing, fracture force, and maximum bending stress.

CLINICAL SIGNIFICANCE

Different material combinations for implants and abutments as well as different types of connection achieved acceptable or even good failure and fracture resistance that may be satisfactory for anterior clinical application.

Authors+Show Affiliations

Department of Prosthetic Dentistry, University Medical Center Regensburg, 93042 Regensburg, Germany.Department of Prosthetic Dentistry, University Medical Center Regensburg, 93042 Regensburg, Germany.Department of Prosthetic Dentistry, University Medical Center Regensburg, 93042 Regensburg, Germany.Department of Prosthetic Dentistry, University Medical Center Regensburg, 93042 Regensburg, Germany.Department of Prosthetic Dentistry, University Medical Center Regensburg, 93042 Regensburg, Germany. Electronic address: verena.preis@ukr.de.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24699071

Citation

Rosentritt, Martin, et al. "In Vitro Performance of Zirconia and Titanium Implant/abutment Systems for Anterior Application." Journal of Dentistry, vol. 42, no. 8, 2014, pp. 1019-26.
Rosentritt M, Hagemann A, Hahnel S, et al. In vitro performance of zirconia and titanium implant/abutment systems for anterior application. J Dent. 2014;42(8):1019-26.
Rosentritt, M., Hagemann, A., Hahnel, S., Behr, M., & Preis, V. (2014). In vitro performance of zirconia and titanium implant/abutment systems for anterior application. Journal of Dentistry, 42(8), 1019-26. https://doi.org/10.1016/j.jdent.2014.03.010
Rosentritt M, et al. In Vitro Performance of Zirconia and Titanium Implant/abutment Systems for Anterior Application. J Dent. 2014;42(8):1019-26. PubMed PMID: 24699071.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - In vitro performance of zirconia and titanium implant/abutment systems for anterior application. AU - Rosentritt,Martin, AU - Hagemann,Anna, AU - Hahnel,Sebastian, AU - Behr,Michael, AU - Preis,Verena, Y1 - 2014/03/31/ PY - 2013/09/26/received PY - 2014/03/05/revised PY - 2014/03/23/accepted PY - 2014/4/5/entrez PY - 2014/4/5/pubmed PY - 2016/8/24/medline KW - Abutment KW - Chewing simulation KW - Fracture resistance KW - Implant KW - Titanium KW - Zirconia SP - 1019 EP - 26 JF - Journal of dentistry JO - J Dent VL - 42 IS - 8 N2 - OBJECTIVES: To investigate the type of failure and fracture resistance behaviour of different zirconia and titanium implant/abutment systems for anterior application. METHODS: Eight groups of implant-abutment combinations (n=8/system) were restored with identical full-contour zirconia crowns. The systems represented one-piece and multi-piece zirconia (Z) or titanium (T) implants/abutments with different types of connection (screwed=S, bonded=B). The following combinations (implant-abutment-connection) were investigated: ZZS, ZZB, ZZZB (three-piece), ZTS, TTS, TTS reference, and Z (one-piece, 2×). To simulate clinical anterior loading situations the specimens were mounted into the chewing simulator at an angle of 135° and subjected to thermal cycling (2×3000×5°/55°C) and mechanical loading (1.2×10(6)×50N; 1.6Hz). Fracture resistance and maximum bending stress were determined for all specimens that survived ageing. Data were statistically analyzed with the Kolmogorov-Smirnov-test and one-way ANOVA (α=0.05). Survival performance was calculated with the Kaplan-Meier Log-Rank test. RESULTS: Independent of the material combinations screwed systems showed partly failures of the screws during simulation (ZZS: 3×, ZTS: 8×, TTS: 3×). Screw failures were combined with implant/abutment fractures of zirconia systems. Zirconia one-piece implants and the reference system did not show any failures, and only one specimen of the systems with a bonded connection (ZZZB) fractured. Mean (±standard deviation) fracture forces and maximum bending stresses differed significantly (p=0.000) between 187.4±42.0N/250.0±56.0N/mm(2) (ZZZB) and 524.3±43.1N/753.0±61.0N/mm(2) (Z). CONCLUSIONS: Both material (zirconia or titanium) and the type of connection influenced failure resistance during fatigue testing, fracture force, and maximum bending stress. CLINICAL SIGNIFICANCE: Different material combinations for implants and abutments as well as different types of connection achieved acceptable or even good failure and fracture resistance that may be satisfactory for anterior clinical application. SN - 1879-176X UR - https://www.unboundmedicine.com/medline/citation/24699071/In_vitro_performance_of_zirconia_and_titanium_implant/abutment_systems_for_anterior_application_ DB - PRIME DP - Unbound Medicine ER -