Effects of Third-generation LED LCU on Nanomechanical Properties of Orthodontic Adhesives

Bilgiç, Fundagül; Altan, Halenur; Sözer, Özlem Akıncı; Arslanoğlu, Zeki; Kale, Ediz; Özarslan, Selma

doi:10.12693/aphyspola.132.697

Cited by 2 publications

(6 citation statements)

References 31 publications

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“…Only 14 studies mentioned the irradiation protocol used. One study stated it was followed the LCU manufacturer’s protocol without specifying the procedure [ 27 ]. Thirteen studies reported in detail the irradiation technique applied [ 10 , 11 , 14 , 16 , 17 , 21 , 22 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

Section: Resultsmentioning

confidence: 99%

“… Armellin et al, 2016 [ 20 ] In Vitro Composite restorations in first molars VALO ® (Ultradent, Utah, USA) 3200 3 1600 VALO ® (Ultradent, Utah, USA) Starlight PRO (Mectron, Carasco, Italy) 1000 1000 20 20 Not reported Oz, Oz and Arici, 2016 [ 35 ] In Vivo/ In Vitro Metal brackets polymerized intraorally and, to extracted tooth VALO ® Ortho (Ultradent, Utah, USA) 3200 3 Not reported Elipar ™ S10 (3M Unitek, Monrovia, Calif) 1600 10 Not reported Peutzfeldt, Lussi and Flury, 2016 [ 28 ] In Vitro Light curing resin cements VALO ® (Ultradent, UT, USA) 3200 3 6 9 3162 (88.2) 3213 (110.9) 3299 (89.0) VALO ® (Ultradent, UT, USA) 1000 1400 10, 20 8, 16 The tip end of the LCUwas placed at a distance of 0 mm. Bilgic et al, 2017 [ 27 ] ...…”

Section: Resultsmentioning

confidence: 99%

“…However, the curing combination of standard irradiance & exposure significantly outperformed standard irradiation & short exposure and high irradiance & ultra-short exposure combinations [ 14 ]. The hardness (KHN value) parameter was examined in seven studies [ 15 , 16 , 17 , 27 , 28 , 31 , 33 ]. In accordance with DC values, equivalent or higher degree of microhardness values of resin composites were achieved when 1200 mW/cm 2 was used compared to 3600 mW/cm 2 [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

“…Bilgic et al studied the elastic modulus of adhesives in orthodontics and reported higher elastic modulus values when VALO ® was applied at 3200 mW/cm 2 mode for 3 s than when applied at 1400 mW/cm 2 for 3 s [ 27 ].…”

Section: Resultsmentioning

confidence: 99%

“…Hence, it remains controversially discussed whether the use of the latest LCUs with very high radiant emittance values may actually require longer exposure than the values suggested by the manufacturer to properly cure resin-based materials [ 6 ]. Some authors of the reviewed studies question the “concept of exposure reciprocity” that assumes that when applying the same radiant exposure, the degree of conversion will be the same, regardless of the irradiance level or time of exposure [ 36 ] and assume that such relationship cannot be established to resin-based dental materials when using high-power LCUs [ 15 , 16 , 24 , 25 , 26 , 27 ]; others, on the other hand, agree on the potential of these units in reducing irradiation time without a significant loss of material properties [ 10 , 27 , 28 , 30 , 31 ]. Some unexpected results found in the reviewed studies may be explained by the mismatch between the stated radiant emittance and the actual emitted values.…”

Section: Discussionmentioning

confidence: 99%

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High-Power LED Units Currently Available for Dental Resin-Based Materials—A Review

et al. 2021

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The pursuit of less time-consuming procedures led to the development of high-power light-curing-units (LCU) to light-cure dental-resin-based-materials. This review aims to describe high-power light-emitting-diode (LED)-LCUs, by a bibliometric systematization of in vitro and in vivo studies. The research-question, by PICO model, aimed to assess the current knowledge on dentistry-based high-power LED-LCUs by analyzing to what extent their use can promote adverse events on materials and patients’ oral condition when compared to low-power LED-LCUs, on daily dental practice. PubMed and B-on database search focused on high-power (≥2000 mW/cm2) LED-LCUs outputs. Studies assessing performance of high-power LED-LCUs for light-curing dental-resin-based-materials were included. From 1822 screened articles, 21 fulfilled the inclusion criteria. Thirty-two marketed units with high levels of radiant emittance (≥2000 mW/cm2 up to 6000 mW/cm2) were identified. Most output values vary on 2000–3000 mW/cm2. The highest output found was 6000 mW/cm2, in FlashMax™P3. Reports suggest that light-curing protocols with lower emittance irradiance and longer exposure outperforms all other combination, however in some clinical procedures high-power LED-LCUs are advocated when compared to low-power LED-LCUs. Moreover, long time exposures and over-curing can be dangerous to the biological vital pulp, and other oral tissues. Evidence showing that high-power LCUs are the best clinical option is still very scarce.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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High-Power LED Units Currently Available for Dental Resin-Based Materials—A Review

et al. 2021

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Effects of High-Intensity Light Curing Devices and Resin Adhesive System on Repair Strength of Amalgam with Resin Composite

Ayar

DEMİRBAŞ

YEŞİL

2022

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This study aims to evaluate the effects of the new generation light curing devices and different adhesive systems on the shear repair strength between amalgam and resin composite. Ninety-six square-shaped amalgam (Cavex Non Gamma-2; Cavex Holland BV, Haarlem, the Netherlands) samples were prepared. The amalgam surfaces were polished with 600-grit abrasive paper. The prepared amalgam samples were divided into four groups (Single Bond Universal, 3M ESPE; Adper Easy One, 3M ESPE; Prebond SE, President Dental; OptiBond All-in-One, Kerr) according to the adhesive brand. Each adhesive group was divided into two subgroups according to the 3rd generation light curing devices (Elipar DeepCure-S [3M ESPE, USA], VALO Cordless [Ultradent, USA]) (n = 12). Microhybrid composite cylinders of 3 mm height and 2 mm diameter were placed on the amalgam surfaces by layered method with a silicone mold (Dynamic Plus; President Dental, Germany). Each layer was polymerized with a group specific light curing device. The samples were incubated in distilled water at 37 °C for 24 h before the shear-bond-strength test. The shear bond strength test was accomplished using a universal testing device. Statistical analyzes were made with two-way ANOVA and Tukey HSD tests. Two-way ANOVA revealed a significant effect of the adhesive system brand on bond strength (p < 0.00). Prebound SE provided the lowest bond strength between both light curing devices groups. There was no significant difference between the two light-curing devices groups among Single Bond Universal, Adper Easy One and OptiBond All-in-One resin adhesive systems. It has been revealed that the high-intensity LED light curing device brand does not have a significant effect on the amalgam-resin composite repair strength, and the repair strength may be more affected by the brand of the adhesive system used.

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Effects of Third-generation LED LCU on Nanomechanical Properties of Orthodontic Adhesives

Cited by 2 publications

References 31 publications

High-Power LED Units Currently Available for Dental Resin-Based Materials—A Review

High-Power LED Units Currently Available for Dental Resin-Based Materials—A Review

Effects of High-Intensity Light Curing Devices and Resin Adhesive System on Repair Strength of Amalgam with Resin Composite

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