Tags

Type your tag names separated by a space and hit enter

In vitro performance of implant-supported monolithic zirconia crowns: Influence of patient-specific tooth-coloured abutments with titanium adhesive bases.
J Dent. 2015 Jul; 43(7):839-45.JD

Abstract

OBJECTIVE

To investigate the influence of the combination of patient-specific abutments and titanium adhesive bases on the long-term in vitro performance of anterior crowns.

METHODS

Ten systems of screw-retained implant and adhesive base combinations (n=8/group) were restored with zirconia or polyetherketone (PEEK) abutments and identical full-anatomical zirconia crowns. For simulating clinical anterior loading, implants were fixed at an angle of 135° and submitted to prolonged thermal cycling and mechanical loading (TC: 6×3000 cycles, 5°C/55°C; ML: 100N, 3.6×10(6) cycles) to cause and register fatigue failure. Failed restorations were examined by means of scanning electron microscopy. Surviving restorations were loaded to fracture. Data (mean±standard deviation) were statistically analyzed (ANOVA; Bonferroni; Kaplan-Meier-Log-Rank; α=0.05).

RESULTS

Seven systems survived TCML without any failure. The other three systems showed loosening and fracturing of the screw (0.4-1.6×10(6) loadings) or debonding between base and abutment (0.002-3.4×10(6) loadings). None of the systems showed any fracture of the crown or failed bonding between abutment and crown. The Log-Rank test showed significant (p=0.000) differences. Fracture data significantly varied (ANOVA p=0.000) between the individual systems (minimum: 371N; maximum: 763N). Failures were mostly caused by bending or fracturing of the screw and in three cases by fracture of the abutment.

CONCLUSIONS

Anterior implant-supported zirconia crowns on titanium adhesive bases and bonded patient-specific zirconia abutments provided good in vitro performance and high fracture resistance. Sufficient high torque moments and early re-screwing may be advised.

CLINICAL RELEVANCE

Most adhesive base and abutment combinations may be appropriate for anterior application. Individual improvements may contribute to enduring success.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Rosentritt M
Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg 93042, Germany.
Rembs A
Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg 93042, Germany.
Behr M
Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg 93042, Germany.
Hahnel S
Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg 93042, Germany.
Preis V
Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg 93042, Germany. Electronic address: verena.preis@ukr.de.

MeSH

AdhesivesCrownsDental AbutmentsDental Implant-Abutment DesignDental Implants, Single-ToothDental MaterialsDental Prosthesis, Implant-SupportedDental Restoration FailureMaterials TestingMicroscopy, Electron, ScanningResin CementsSurface PropertiesTitaniumZirconium

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25953721

Citation

Rosentritt, Martin, et al. "In Vitro Performance of Implant-supported Monolithic Zirconia Crowns: Influence of Patient-specific Tooth-coloured Abutments With Titanium Adhesive Bases." Journal of Dentistry, vol. 43, no. 7, 2015, pp. 839-45.
Rosentritt M, Rembs A, Behr M, et al. In vitro performance of implant-supported monolithic zirconia crowns: Influence of patient-specific tooth-coloured abutments with titanium adhesive bases. J Dent. 2015;43(7):839-45.
Rosentritt, M., Rembs, A., Behr, M., Hahnel, S., & Preis, V. (2015). In vitro performance of implant-supported monolithic zirconia crowns: Influence of patient-specific tooth-coloured abutments with titanium adhesive bases. Journal of Dentistry, 43(7), 839-45. https://doi.org/10.1016/j.jdent.2015.04.011
Rosentritt M, et al. In Vitro Performance of Implant-supported Monolithic Zirconia Crowns: Influence of Patient-specific Tooth-coloured Abutments With Titanium Adhesive Bases. J Dent. 2015;43(7):839-45. PubMed PMID: 25953721.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - In vitro performance of implant-supported monolithic zirconia crowns: Influence of patient-specific tooth-coloured abutments with titanium adhesive bases. AU - Rosentritt,Martin, AU - Rembs,Andreas, AU - Behr,Michael, AU - Hahnel,Sebastian, AU - Preis,Verena, Y1 - 2015/05/04/ PY - 2014/11/18/received PY - 2015/04/18/revised PY - 2015/04/23/accepted PY - 2015/5/9/entrez PY - 2015/5/9/pubmed PY - 2017/4/12/medline KW - Abutment KW - Chewing simulation KW - Implant KW - PEEK KW - Titanium adhesive base KW - Zirconia SP - 839 EP - 45 JF - Journal of dentistry JO - J Dent VL - 43 IS - 7 N2 - OBJECTIVE: To investigate the influence of the combination of patient-specific abutments and titanium adhesive bases on the long-term in vitro performance of anterior crowns. METHODS: Ten systems of screw-retained implant and adhesive base combinations (n=8/group) were restored with zirconia or polyetherketone (PEEK) abutments and identical full-anatomical zirconia crowns. For simulating clinical anterior loading, implants were fixed at an angle of 135° and submitted to prolonged thermal cycling and mechanical loading (TC: 6×3000 cycles, 5°C/55°C; ML: 100N, 3.6×10(6) cycles) to cause and register fatigue failure. Failed restorations were examined by means of scanning electron microscopy. Surviving restorations were loaded to fracture. Data (mean±standard deviation) were statistically analyzed (ANOVA; Bonferroni; Kaplan-Meier-Log-Rank; α=0.05). RESULTS: Seven systems survived TCML without any failure. The other three systems showed loosening and fracturing of the screw (0.4-1.6×10(6) loadings) or debonding between base and abutment (0.002-3.4×10(6) loadings). None of the systems showed any fracture of the crown or failed bonding between abutment and crown. The Log-Rank test showed significant (p=0.000) differences. Fracture data significantly varied (ANOVA p=0.000) between the individual systems (minimum: 371N; maximum: 763N). Failures were mostly caused by bending or fracturing of the screw and in three cases by fracture of the abutment. CONCLUSIONS: Anterior implant-supported zirconia crowns on titanium adhesive bases and bonded patient-specific zirconia abutments provided good in vitro performance and high fracture resistance. Sufficient high torque moments and early re-screwing may be advised. CLINICAL RELEVANCE: Most adhesive base and abutment combinations may be appropriate for anterior application. Individual improvements may contribute to enduring success. SN - 1879-176X UR - https://www.unboundmedicine.com/medline/citation/25953721/In_vitro_performance_of_implant_supported_monolithic_zirconia_crowns:_Influence_of_patient_specific_tooth_coloured_abutments_with_titanium_adhesive_bases_ DB - PRIME DP - Unbound Medicine ER -