Effect of Load Cycling on the Fracture StrengthMode of Teeth Restored with FRC Posts or a FRC Liner and a Resin Composite
Joint Authors
Gaintantzopoulou, Maria D.
Farmakis, Eleftherios T.
Eliades, George C.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The aim of the study was to comparatively evaluate the fracture strength and mode of root canal treated teeth restored with resin composites with and without posts.
The lingual cusps of root canal treated first upper premolars (n = 10/group) were removed down to cervical enamel and restored with the following: group A: glass-fiber post (Glassix) followed by a particulate-filled composite resin (PFC, G-aenial posterior, 3 × 2 mm layers); group B: glass-fiber reinforced composite bulk fill liner (EverX posterior, 4 mm layer) with the PFC (2 mm layer).
Specimens were immersed in H2O (1 w/37°C), then subjected to load cycling (50 N/0.2 Hz/200k cycles), and fractured under compressive loading.
Failure mode was characterized by stereomicroscopy.
Statistical analysis was performed by Mann-Whitney (load) and Chi-square (mode) at a = 0.05.
No statistically significant differences (p = 0.273) were found in fracture load between median values of groups A (860 N) and B (1059 N).
In group A, 60% of the specimens demonstrated catastrophic root fractures and 40% mixed crown fractures (tooth cusp and restoration), whereas in group B, no root fractures were found, and the failure modes were equally distributed between mixed fractures as above and fracture of the buccal cusp.
These differences were statistically significant (p = 0.004).
The combination of the glass-FRC bulk fill liner with the PFC diminished the catastrophic root fractures induced by FRC posts, at a similar or higher fracture load.
American Psychological Association (APA)
Gaintantzopoulou, Maria D.& Farmakis, Eleftherios T.& Eliades, George C.. 2018. Effect of Load Cycling on the Fracture StrengthMode of Teeth Restored with FRC Posts or a FRC Liner and a Resin Composite. BioMed Research International،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1129456
Modern Language Association (MLA)
Gaintantzopoulou, Maria D.…[et al.]. Effect of Load Cycling on the Fracture StrengthMode of Teeth Restored with FRC Posts or a FRC Liner and a Resin Composite. BioMed Research International No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1129456
American Medical Association (AMA)
Gaintantzopoulou, Maria D.& Farmakis, Eleftherios T.& Eliades, George C.. Effect of Load Cycling on the Fracture StrengthMode of Teeth Restored with FRC Posts or a FRC Liner and a Resin Composite. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1129456
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129456