Comparison of the Mechanical Properties between Bulk-fill and Conventional Composites

Noh, Tae Hwan; Song, Eun-Ha; Park, Soyoung; Pyo, Ae-Ri; Kwon, Yong‐Hoon; Kim, Jiyeon; Kim, Shin; Jeong, Tae-Sung

doi:10.5933/jkapd.2016.43.4.365

Cited by 3 publications

(4 citation statements)

References 22 publications

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“…Dental caries is irreversible damage to tooth, and 128 composite resins with sufficient compressive strength, indirect tensile strength, and modulus of elasticity have been used to restore damaged tooth to their original state 17) . Resin undergoes polymerization shrinkage 2) , and Bulk-Fill resin was developed to overcome this 4,11) . Although these Bulk-Fill resins have been able to escape the disadvantage of polymerization shrinkage, there is a lack of research on polymerization time or polymerization distance that can have sufficient physical properties.…”

Section: Discussionmentioning

confidence: 99%

“…Leprince et al 11) said that more research is needed on whether to use it where a large occlusal force is required due to the low mechanical properties of most Bulk-Fill materials compared to existing composite resins. A study by Noh et al 4) also reported that the physical properties of Bulk-Fill composite resins were inferior to those of traditional composite resins. On the other hand, regarding the polymerization depth according to the viscosity of the Bulk-Fill resin, a sufficient polymerization rate was reported for flowable Bulk-Fill resin at a depth of 4 mm 12) , while there was controversy about packable Bulk-Fill resin 13,14) .…”

Section: Introductionmentioning

confidence: 99%

“…Postoperative hypersensitivity due to stress caused by polymerization shrinkage, microleakage and discoloration of the restoration, it causes various clinical problems such as tooth deformation 3) . In addition, there are disadvantages such as long working time, sensitivity to moisture and contamination, as well as polymerization shrinkage, which are more prominent when treating children 4) . In order to prevent polymerization and shrinkage of the composite resin, the layered filling method was used, but when layered filling is performed, there are problems in that the treatment time is prolonged even if the operator is highly skilled, and it is not easy to control moisture and contamination 5) .…”

Section: Introductionmentioning

confidence: 99%

“…In order to solve these disadvantages, bulk filling appeared, and Bulk-Fill composite resins that made this possible were developed 4) . These Bulk-Fill composite resins have low shrinkage stress and shrinkage rate 6) , and conventional resins recommend resin restorations up to 2 mm in height, but Bulk-Fill resins can restore up to 4∼5 mm in height 7) and can be used as a single restorative material.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Surface Microhardness of the Flowable Bulk-Fill Resin and the Packable Bulk-Fill Resin according to Light Curing Time and Distance

et al. 2023

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Background: As a restorative material used to treat dental caries, the light-curing type resin is widely used, but it has the disadvantage of polymerization shrinkage. The Bulk-Fill composite resin was developed to solve these shortcomings, but the existing research mainly focused on comparing the physical properties of a composite resin and a Bulk-Fill resin. A study on the light curing time and distance of the Bulk-Fill resin itself tend to be lacking. Methods: This study compares the surface microhardness of specimens prepared by varying the light curing time and distance of smart dentin replacement (SDR) as a flowable Bulk-Fill resin and Tetric N-ceram as a packable Bulk-Fill resin, and confirms the polymerization time and distance that becomes the optimum hardness. To determine the hardness of the specimen, it was measured using the Vickers Hardness Number (Matsuzawa MMT-X, Japan). Results: In SDR, the surface microhardness decreased as the distance increased in all time groups in the change distance from the curing tip. In the change of light curing time with respect to the distance from curing tip, the surface microhardness increased as the time increased. In Tetric N-ceram, the surface microharness showed no significant difference in the change of the distance of curing tip in the group of 20 and 60 second. But in the group of 10 and 40 seconds, decreased as the distance increased. The surface microharness increased as the light curing time increased in all distance groups. Conclusion: When using SDR and Tetric N-ceram in clinical practice, it is considered that as the distance from the polymerization reactor tip increases, a longer light curing time than the polymerization time recommended by the manufacturer is required.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of Surface Microhardness of the Flowable Bulk-Fill Resin and the Packable Bulk-Fill Resin according to Light Curing Time and Distance

et al. 2023

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Evaluation of polymerization ability of resin-based materials used for teeth splinting

Lee

Kim

Lee

et al. 2018

J Dent Rehabil Appl Sci

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The aim of this study was to evaluate the polymerization ability of resin-based materials used for teeth splinting according to the thickness of cure. Materials and Methods: For this study, the Light-Fix and G-FIX developed for resinous splinting materials and the G-aenial Universal Flo, the high-flowable composite resin available as restorative and splinting material, were used. Ten specimens of the thickness of 2, 3, 4 and 5 mm and 5 mm in diameter for each composite resin (total 120) were prepared. The microhardness of top and bottom surfaces for each specimen was measured by the Vickers hardness testing machine. The polymerization ability of the composite resin for each thickness was statistically analyzed using independent T-test at a 0.05 level of significance. Results: There was no difference of polymerization ability regardless of the thickness in the Light-Fix and G-FIX. The G-aenial Universal Flo showed significantly low polymerization ability from the thickness of the 3 mm (P < 0.05). Conclusion: The Light-Fix and G-FIX, which are resin-based materials used for teeth splinting, are expected to be suitable for light curing up to 5 mm in thickness.

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Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

Kim¹,

Lee²,

Kim³

et al. 2019

THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY

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The aim of this study was to compare the degree of conversion and polymerization shrinkage of low and high viscosity bulk-fill giomer-based and resin-based composites. Two bulk-fill giomer (Beautifil Bulk Restorative (BBR), Beautifil Bulk Flowable (BBF)), two bulk-fill (Tetric N-Ceram Bulk-fill (TBF), SureFil SDR flow (SDR)) and two conventional resin composites (Tetric N-Ceram (TN), Tetric N-flow (TF)) were selected for this study. The degree of conversion was measured by using Fourier transform infrared spectroscopy. Polymerization shrinkage was measured with the linometer. For all depth, BBR had the lowest degree of conversion and SDR had the highest. At 4 mm, the degree of conversion of low and high viscosity bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). At the depth between 2 mm and 4 mm, there were significant difference with TBF, TN and TF (p < 0.05), while no significant difference in the degree of conversion was measured for BBR, BBF and SDR. Polymerization shrinkage of six resin composites decreased in the following order: TF > SDR > BBF > TBF > TN and BBR (p < 0.05). Polymerization shrinkage of bulk-fill giomer resin composites was lower than that of bulk-fill resin composites (p < 0.05). From this study, it is found that the bulk-fill giomer resin composites and TBF were not sufficiently cured in 4 mm depth. The degree of conversion of low and high viscosity bulk-fill giomer resin composites was significantly lower than bulk-fill resin composites in both 2 mm and 4 mm depths. Therefore, such features of bulk-fill giomer resin composites should be carefully considered in clinical application.

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Comparison of the Mechanical Properties between Bulk-fill and Conventional Composites

Cited by 3 publications

References 22 publications

Comparison of Surface Microhardness of the Flowable Bulk-Fill Resin and the Packable Bulk-Fill Resin according to Light Curing Time and Distance

Comparison of Surface Microhardness of the Flowable Bulk-Fill Resin and the Packable Bulk-Fill Resin according to Light Curing Time and Distance

Evaluation of polymerization ability of resin-based materials used for teeth splinting

Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

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