Publication: Effect of Polyethylene Fiber on Fracture Resistance of Bulk-fill Composites
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Date
2023-07-03
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Abstract
Introduction: The aim of this in vitro study was to evaluate the fracture resistance of sonic-activated SonicFill3 (SF) (Kerr)
and flowable Charisma Bulk Flow ONE (CO) (Kulzer) bulk-fill composites with or without polyethylene-fiber (R)
(Ribbond) application.
Materials and Methods: Class I cavities (2x2x4mm) were prepared on 40 freshly extracted human premolars of similar
size and classified randomly into 4 groups (SF, SF+R, CO, CO+R). The remaining wall thicknesses of the teeth was
confirmed to be 2mm. Ribbond fiber (2x2mm) was applied to cavity bases of the acryl-embedded teeth according to
manufacturers’ instructions and OptiBond (Kerr) (for SF, SF+R groups) and Gluma Bond (Kulzer) (for CO, CO+R groups)
universal adhesives were used. All specimens were restored in a 4mm monolayer with SF and CO. Valo Cordless
(Ultradent) LED-curing unit with a power output of 1000 mW/cm2 was preferred for polymerization. Finishing and
polishing were completed with the last 2 stages of Sof-Lex discs (Kerr). Restored teeth were stored in distilled water at
37°C for 24 hours. Fracture resistance (FS) and elastic modulus (EM) values were measured with a universal testing device
(Shimadzu AG-X, Shimadzu Corp, Japan). Data were analyzed with IBM SPSS V23 using Independent samples T-test.
The significance level was set at p<0.05.
Results: No statistically significant difference was found between the bulk-fill composites (SF and CO) without R
(p=0.167). Similarly, no significant difference was detected between the Ribbond fiber applied groups (SF+R and CO+R)
(p=0.994). The effect of fiber application on FS of SF (p=0.421) and CO (p=0.552) was not statistically significant. The
mean maximum force values (newtons) in decreasing order were CO (761.09±224.32) > SF+R (671.08±150.51) > CO+R
(669.95±358.44) > SF (580.7±269.04). The EM values of SF and CO were statistically significantly different (p=0.009). A
statistically significant difference was observed between the EM values in the Ribbond fiber applied groups (SF+R and
CO+R) (p=0.026). EM values of CO were statistically significantly higher regardless of Ribbond application (p<0.001).
Conclusion: Within the limitations of this in vitro study, the application of SonicFill3 and Charisma Bulk Flow ONE
composites with Ribbond may be an option for clinical applications.
Keywords: bulk-fill composite, elastic modulus, fracture resistance, polyethylene fiber
Description
Keywords
bulk-fill composite, elastic modulus, fracture resistance, polyethylene fiber
Citation
MANAV ÖZEN A., DOĞU KAYA B., YILMAZ ATALI P., KAHRAMANOĞLU E., ŞENOL A. A., TARÇIN B., TÜRKMEN C., \"Effect of Polyethylene Fiber on Fracture Resistance of Bulk-fill Composites\", 7th IAD International Congress on Adhesive Dentistry, Konya, Türkiye, 01 Haziran 2023, ss.134