Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites

Säilynoja, Eija; Garoushi, Sufyan; Vallittu, Pekka K.; Lassila, Lippo

doi:10.3390/polym13142281

Cited by 13 publications

(14 citation statements)

References 29 publications

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“…It important to highlight that in addition to the restorative techniques used, differences in loading values among the investigated groups might be attributed to other variables related to composite composition. There may be variations in filler loading, type and size, resin matrix composition, filler/fiber silanization quality, or the existence of some crack-resistance structures such as nano-clustering of fillers [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…It is clearly shown in the literature that short-fiber reinforced composite (SFRC) when used as post-luting and core build-up resin leads to improved fracture behavior of endodontically treated teeth [ 23 , 32 , 33 ]. Therefore, it will be interesting to research how the new sleeve system and the SFRC work together to reinforce endodontically treated anterior teeth with flared root canals.…”

Section: Discussionmentioning

confidence: 99%

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Influence of New Sleeve Composite on Fracture Behavior of Anterior Teeth with Flared Root Canals

et al. 2022

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We evaluated the fracture strength and failure mode of non-ferrule teeth with flared root canals that were restored using new experimental sleeve composites. Fifty endodontically treated anterior teeth with flared root canals were restored with direct restorations utilizing different techniques. Group A had teeth (non-ferrule) restored using commercialized MI glass fiber post + Gradia Core as core build-up. Group B had teeth (non-ferrule) restored with commercialized i-TFC glass fiber post + sleeve system. In Group C, the teeth (non-ferrule) were restored with an experimental sleeve composite with commercialized MI glass fiber post and Gradia Core. Group D, teeth (non-ferrule), were restored using custom-made tapered E-glass filling post and Gradia Core. Group E, teeth (with ferrule), were restored with commercialized MI glass fiber post + Gradia Core. After core construction, all specimens underwent direct composite crown restoration and were loaded until fracture using a universal testing machine. Average fracture loads were compared, and the failure modes were observed. Group C exhibited significantly greater fracture strength than other groups (p < 0.05). Favorable fracture teeth ratio of group C was more than that of the other groups. Thus, the new experimental sleeve composite could be clinically useful for core construction of non-ferrule teeth.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of New Sleeve Composite on Fracture Behavior of Anterior Teeth with Flared Root Canals

et al. 2022

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“…Which, in turn creates an area of higher stress, particularly in wide or ared root canals where a thick cement layer is present. The former results in several crack-formations and de cient bonding [11,12] . The weakest link in a restored tooth is the luting cement and it is located at the area that is subjected to the highest tensile stresses during function.…”

Section: Introductionmentioning

confidence: 99%

“…Even with the present cements that contain particulate ller, a restored tooth is not biomechanically optimized. Recently, some manufacturers invented resin composites with different owability or viscosity that claimed to restore structurally compromised teeth with ber posts [12,13] .…”

Section: Introductionmentioning

confidence: 99%

Comparison of Fracture Resistance among Different Post Placement Strategies and Core Build-up Materials in Endodontically Treated Maxillary Premolars: In Vitro Study

Alshali,

Mously,

Abulhamael

et al. 2024

Preprint

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Objectives: The aim was to compare the fracture resistance of endodontically treated premolars reinforced by one or two fiber-reinforced composites and different core build-up materials. Materials and methods: 40 double rooted maxillary premolars were collected and divided into four groups (n=10). After endodontic treatment, teeth were prepared and received fiber posts as follow: group #1: single fiber post with Luxacore Z as luting cement and core build-up material, group #2: two fiber posts with Luxacore Z as luting cement and core build-up material, group #3: single fiber post cemented with RelyX Unicem followed by packable composite as a core build-up material, group #4: two fiber posts cemented with RelyX Unicem followed by packable composite as a core build-up material. The specimens were placed in the Universal testing machine for testing of the fracture resistance. Specimens were axially loaded on the center of the occlusal surface. Results: Group 4 (two fiber posts with resin cement & packable composite resin) had significantly higher fracture resistance (1051.7 N) compared to group 1 and 2 (single and double posts with luxacora Z build up) respectively at p-value < 0.05. Conclusion: The restoration of endodontically treated double rooted premolars using two fiber posts luted with resin cement, followed by packable composite build up showed promising performance regarding fracture-resistance.

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“…4 A variety of curing modes to improve the polymerization dynamics for clinical dental resin composites (DRCs) have been developed by research, including self-cure, lightcure, and dual-cure DRCs. 5 While different techniques have been used to improve the mechanical and physical properties of DRCs, optimizing the interface interaction between fillers (inorganic) and resin matrix (organic) has proven to be one of the most successful strategies. 6 Another way to improve filler/resin interfacial interaction is by modifying the fillers, which further improves the comprehensive properties of DRCs.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of self‐cure and dual cure‐dental composites on their physico‐mechanical behaviour

Thadathil Varghese,

Raju,

Farrar

et al. 2023

Australian Dental Journal

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BackgroundClinical practitioners may have become familiar with the rapid transformation of dental composites. However, they may not scientifically understand the factors influencing the mechanical and physical properties. Scientific knowledge of filler‐resin interaction can significantly improve clinical understanding of resin composites. Several independent studies have examined the mechanical and physico‐mechanical properties of dental resin composites; however, no comprehensive study has examined the influence of fillers and resin materials on the physico‐mechanical properties of both self‐cure and dual‐cure composites.MethodsThis study performed investigations on the physico‐mechanical behaviour of four commercially available dual‐cure dental composites (Bioactive, Fill Up!, Surefil One, Cention N) and two commercially available self‐cure dental composites (Stela Capsule and Stela Automix). Test specimens for flexural and compressive strength, microhardness, fracture toughness, and hydrolytic behaviour were prepared and tested as per respective standards. The data sets were statistically analysed using one‐way ANOVA and Tukey's post‐hoc comparison.ResultsThere was a substantial variation in flexural strength and modulus values in this study, ranging from 32.0 to 113.4 MPa and 2.36 to 12.07 GPa, respectively. Similarly, there were significant differences in compressive strength between the materials in this study, ranging from 119.3 to 223.5 MPa. The highest fracture toughness value was found to be 1.41 MPa.m0.5, while the lowest value was 0.43 MPa.m0.5. Variations in surface microhardness were significant (24.11–68.0 N/mm2), which correlated with the filler content. Water sorption and solubility demonstrated high variations among materials, with Surefil One exceeding ISO 4049 thresholds significantly.ConclusionsA linear correlation can be established between surface microhardness (HV) and flexural and compressive moduli, as well as filler content (wt.%). However, both flexural and compressive strengths are impacted by the resin's constituent monomers and the resin‐filler matrix's cross‐linking capability. Additionally, factors such as filler size, shape, and the cross‐linking ability of the resin‐filler matrix play a crucial role in fracture toughness and the propagation of cracks within the restoration. Also, resin monomers and filler particle size affect the hydrolytic degradation characteristics of composites, which can also affect their mechanical properties. © 2023 Australian Dental Association.

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Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites

Cited by 13 publications

References 29 publications

Influence of New Sleeve Composite on Fracture Behavior of Anterior Teeth with Flared Root Canals

Influence of New Sleeve Composite on Fracture Behavior of Anterior Teeth with Flared Root Canals

Comparison of Fracture Resistance among Different Post Placement Strategies and Core Build-up Materials in Endodontically Treated Maxillary Premolars: In Vitro Study

Comparative analysis of self‐cure and dual cure‐dental composites on their physico‐mechanical behaviour

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