Effect of Rapid Polymerization on Water Sorption and Solubility of Bulk-fill Composites

Klarić, Nikolina; Macan, Matea; Par, Matej; Tarle, Zrinka; Marović, Danijela

doi:10.15644/asc56/3/2

Cited by 6 publications

(6 citation statements)

References 39 publications

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“…A longer curing time with a lower light output was obviously more beneficial for the polymerization of Filtek One since a higher parameter “a” and DC were observed at the 5-min curing time. A similar conclusion was drawn in our previous studies with the same material [ 28 , 37 ].…”

Section: Discussionsupporting

confidence: 92%

Blue Laser for Polymerization of Bulk-Fill Composites: Influence on Polymerization Kinetics

et al. 2023

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The objective of this study was to compare the polymerization kinetics of bulk-fill resin composites cured with a LED-curing device and a diode laser (449 nm). Three bulk-fill composites were light-cured with constant radiation exposure at 10 J/cm2 by varying radiant exitance and curing time. The following three light-curing protocols were used: (I) 3300 mW/cm2 for 3 s; (II) 2000 mW/cm2 for 5 s; and (III) 1000 mW/cm2 for 10 s. The degree of conversion (DC) was monitored in real time at a data acquisition rate of 2 spectra/s over a 5-min period and again after seven days using Fourier transform infrared spectroscopy. DC amounted to 30.9–61.7% at 4-mm depth after 5 min. DC values of two sculptable composites were significantly higher with the laser, regardless of the curing protocol used, but not for the flowable composite. The maximum polymerization rate (2.0–22.1%/s) was less affected by the type of curing device for one of the composites, while the other two composites achieved significantly higher values when cured with the laser. Laser curing generally increased the DC and the maximum polymerization rate while it shortened the onset of the maximum reaction rate. New handheld laser devices with adjustable power have the potential to be used as a photopolymerization light source for new generations of bulk-fill composites.

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Section: Discussionsupporting

confidence: 92%

Blue Laser for Polymerization of Bulk-Fill Composites: Influence on Polymerization Kinetics

et al. 2023

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“…Klaric et al investigated the water sorption and solubility for "3 s" rapid curing, using the same materials as in the present study [42]. Their results showed higher solubility for all materials in the 3 s curing protocol compared to the 20 s curing protocol.…”

Section: Discussionmentioning

confidence: 73%

One-Year Evaluation of High-Power Rapid Curing on Dentin Bond Strength

Klarić,

Bosnić,

Par

et al. 2024

Materials

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This study investigated the effect of 3 s light-curing with a high-power LED curing unit on the shear bond strength of bulk-fill composites. Four bulk-fill composites were bonded to dentin with a universal adhesive (Scotchbond Universal Plus): two materials designed for rapid curing (Tetric PowerFill and Tetric PowerFlow) and two controls (Filtek One Bulk Fill Restorative and SDR Plus Bulk Fill Flowable). The 4 mm composite layer was light-cured with Bluephase PowerCure for 20 s at 1000 mW/cm2 (“20 s”) or for 3 s at 3000 mW/cm2 (“3 s”). The samples were stored at 37 °C in distilled water and tested after 1, 6 and 12 months. The samples polymerised in the “3 s” mode had statistically similar or higher bond strength than the samples cured in “20 s” mode, except for the Tetric PowerFlow (1 month) and SDR+ (6 month). The flowable materials Tetric PowerFlow and SDR Plus initially showed the highest values in the “3 s” and “20 s” groups, which decreased after 12 months. The bond strength was statistically similar for all materials and curing protocols after 12 months, except for Tetric PowerFill cured with the “3 s” protocol (21.22 ± 5.0 MPa), which showed the highest value. Tetric PowerFill showed the highest long-term bond strength. While “3 s” curing resulted in equal or better shear bond strength, its use can only be recommended for a material with an AFCT agent such as Tetric PowerFill.

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“…In a recent study evaluating the water absorption and solubility in water as a result of fast and slow polymerization of bulk fill composites, it was seen that the degree of polymerization, that is, the formation of cross-links of the polymer network, is more important than the density of the inorganic and organic content of the composite resin [28]. In this respect, when current composites are evaluated, it is seen that studies that compare the polymerization degrees of composites are necessary.…”

Section: Figure1 Water Sorption Of Each Materials In the 14th And 30t...mentioning

confidence: 99%

An Analysis of Water Sorption of Some Composites Used in Dentistry

Bege�,

Bege�

2023

Mater. Plast.

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This study aimed to investigate the water sorption levels of 3 different condensable bulk fill composites, two flowable bulk fill composites, two microhybrid composites, one nanofilled composite, and one nanohybrid composite material polymerized with the same beam device on the 14th and 30th days.We evaluated nine different composite materials. The materials were prepared as cylindrical blocks (n=7) with a diameter of 7 mm and a thickness of 2 mm and polymerized. Each sample was kept in distilled water for specified times and measured by the ISO 4049 method.We used The Kruskal-Wallis test to compare more than two independent groups where numerical variables had no normal distribution. The Dwass-Steel-Critchlow-Fligner test evaluated differences between the groups if the non-parametric tests were applied. We used The Wilcoxon test to compare the numerical variables without normal distribution (water sorption values in the 14th and 30th-day measurements for each cement material).For water sorption, there was no statistically significant difference between the water sorption values of the resin composite materials on the 14th and 30th days. No statistically significant difference was found in comparing water sorption values between the 14th and 30th measurements for each resin composite material. There is a need for more extended studies by keeping the conditions constant for the evaluated composites and for bulk fill composites to be evaluated with 4mm samples.

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Effect of Rapid Polymerization on Water Sorption and Solubility of Bulk-fill Composites

Cited by 6 publications

References 39 publications

Blue Laser for Polymerization of Bulk-Fill Composites: Influence on Polymerization Kinetics

Blue Laser for Polymerization of Bulk-Fill Composites: Influence on Polymerization Kinetics

One-Year Evaluation of High-Power Rapid Curing on Dentin Bond Strength

An Analysis of Water Sorption of Some Composites Used in Dentistry

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