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Fatigue failure of anterior teeth without ferrule restored with individualized fiber-reinforced post-core foundations.
J Mech Behav Biomed Mater. 2021 Jun; 118:104440.JM

Abstract

OBJECTIVES

The aim was to explore the survival of extensively damaged anterior teeth without ferrule restored with different fiber-reinforced composite (FRC) post-core foundations and composite crowns.

MATERIALS AND METHODS

Sixty extracted upper central incisors were decoronated and randomly divided into four groups (n = 15). After endodontic treatment, the specimens were restored with different individualized fiber-reinforced post-core foundations as follows: control group (CTRL): multiple unidirectional FRC-post + dual-cure composite-core, PFC: multiple unidirectional FRC-post + packable short fiber-reinforced composite (SFRC), BPFC: Bioblock technique with only packable SFRC, BFFC: Bioblock technique with only flowable SFRC. After core build-up, the teeth were finalized with adhesively luted CAD/CAM composite crowns. Cyclic isometric loading (5 Hz) was applied at 100 N for 5000 cycles, and then 200 N and 300 N for 15,000 cycles each in a fluid chamber. The specimens were loaded until fracture occurred or when a total of 35,000 cycles were reached. Kaplan-Meyer survival analysis was conducted, followed by pairwise log-rank post hoc comparisons (Mantel-Cox).

RESULTS

The survival rates of the control (8279 cycles) and PFC (6161 cycles) were significantly higher compared to BPFC (3223 cycles) and BFFC (2271 cycles) (p < 0.05). Regarding fracture pattern, nearly all specimens fractured in a restorable manner.

CONCLUSIONS

For restoring extensively damaged anterior teeth, multiple unidirectional FRC posts are recommended.

CLINICAL RELEVANCE

Although different FRC post/core systems are available for the restoration of damaged root canal treated anterior teeth, multiple unidirectional FRC posts tend to be a good option when the ferrule is missing.

Authors+Show Affiliations

Department of Operative and Esthetic Dentistry, Faculty of Dentistry, University of Szeged, Szeged, Hungary. Electronic address: meddentist.fm@gmail.com.Department of Operative and Esthetic Dentistry, Faculty of Dentistry, University of Szeged, Szeged, Hungary.DicomLAB Dental Ltd., Szeged, Hungary.Department of Food Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary.Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC Institute of Dentistry, University of Turku, Turku, Finland.Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC Institute of Dentistry, University of Turku, Turku, Finland; City of Turku Welfare Division, Oral Health Care, Turku, Finland.Department of Biomaterials Science and Turku Clinical Biomaterials Center -TCBC Institute of Dentistry, University of Turku, Turku, Finland.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

33689903

Citation

Fráter, Márk, et al. "Fatigue Failure of Anterior Teeth Without Ferrule Restored With Individualized Fiber-reinforced Post-core Foundations." Journal of the Mechanical Behavior of Biomedical Materials, vol. 118, 2021, p. 104440.
Fráter M, Sáry T, Braunitzer G, et al. Fatigue failure of anterior teeth without ferrule restored with individualized fiber-reinforced post-core foundations. J Mech Behav Biomed Mater. 2021;118:104440.
Fráter, M., Sáry, T., Braunitzer, G., Balázs Szabó, P., Lassila, L., Vallittu, P. K., & Garoushi, S. (2021). Fatigue failure of anterior teeth without ferrule restored with individualized fiber-reinforced post-core foundations. Journal of the Mechanical Behavior of Biomedical Materials, 118, 104440. https://doi.org/10.1016/j.jmbbm.2021.104440
Fráter M, et al. Fatigue Failure of Anterior Teeth Without Ferrule Restored With Individualized Fiber-reinforced Post-core Foundations. J Mech Behav Biomed Mater. 2021;118:104440. PubMed PMID: 33689903.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fatigue failure of anterior teeth without ferrule restored with individualized fiber-reinforced post-core foundations. AU - Fráter,Márk, AU - Sáry,Tekla, AU - Braunitzer,Gábor, AU - Balázs Szabó,P, AU - Lassila,Lippo, AU - Vallittu,Pekka K, AU - Garoushi,Sufyan, Y1 - 2021/03/03/ PY - 2020/12/22/received PY - 2021/2/6/revised PY - 2021/2/26/accepted PY - 2021/3/11/pubmed PY - 2021/5/20/medline PY - 2021/3/10/entrez KW - Fatigue survival KW - Individualized post KW - Post-core foundation KW - Short fiber-reinforced composite SP - 104440 EP - 104440 JF - Journal of the mechanical behavior of biomedical materials JO - J Mech Behav Biomed Mater VL - 118 N2 - OBJECTIVES: The aim was to explore the survival of extensively damaged anterior teeth without ferrule restored with different fiber-reinforced composite (FRC) post-core foundations and composite crowns. MATERIALS AND METHODS: Sixty extracted upper central incisors were decoronated and randomly divided into four groups (n = 15). After endodontic treatment, the specimens were restored with different individualized fiber-reinforced post-core foundations as follows: control group (CTRL): multiple unidirectional FRC-post + dual-cure composite-core, PFC: multiple unidirectional FRC-post + packable short fiber-reinforced composite (SFRC), BPFC: Bioblock technique with only packable SFRC, BFFC: Bioblock technique with only flowable SFRC. After core build-up, the teeth were finalized with adhesively luted CAD/CAM composite crowns. Cyclic isometric loading (5 Hz) was applied at 100 N for 5000 cycles, and then 200 N and 300 N for 15,000 cycles each in a fluid chamber. The specimens were loaded until fracture occurred or when a total of 35,000 cycles were reached. Kaplan-Meyer survival analysis was conducted, followed by pairwise log-rank post hoc comparisons (Mantel-Cox). RESULTS: The survival rates of the control (8279 cycles) and PFC (6161 cycles) were significantly higher compared to BPFC (3223 cycles) and BFFC (2271 cycles) (p < 0.05). Regarding fracture pattern, nearly all specimens fractured in a restorable manner. CONCLUSIONS: For restoring extensively damaged anterior teeth, multiple unidirectional FRC posts are recommended. CLINICAL RELEVANCE: Although different FRC post/core systems are available for the restoration of damaged root canal treated anterior teeth, multiple unidirectional FRC posts tend to be a good option when the ferrule is missing. SN - 1878-0180 UR - https://www.unboundmedicine.com/medline/citation/33689903/Fatigue_failure_of_anterior_teeth_without_ferrule_restored_with_individualized_fiber_reinforced_post_core_foundations_ DB - PRIME DP - Unbound Medicine ER -