<abstract xmlns="http://www.w3.org/1999/xhtml">Introduction: Manufactures claim that recently introduced bulk fill materials (BFM) can be cured adequately in 4 mm increments. This requires adequate light energy to be transmitted through the material to ensure adequate polymerization at the bottom of the increment. Aim: To compare the total light energy transmission through three BFMs and bottom/top (B/T) surface Vickers hardness (VH) when cured with single-peak versus dual-peak LED LCUs.Methods and Materials: Samples (n=5) of two viscous BFMs, Tetric EvoCeram® Bulk Fill X-tra fil® [XF] flowable SureFil, were prepared. A conventional RBC, Tetric EvoCeram® was used as a control. Using MARC® RC, the irradiance delivered to top surface of samples was adjusted to 1200 mW/cm2. Samples were cured with singlepeak EliparTM S10 or dual-peakBluephase® G2 for 10 seconds and irradiance transmitted to the bottom surface measured. Samples were stored for 24 hours, prior to VH measurements B/T VH ratios were calculated. Statistically analysed used oneway ANOVA (α=0.05).Results: There was no statistically significant difference for B/T total energy transmission between materials except XF with EliparTM S10 (P&lt;0.001). Total energy transmission ranged from 0.7 J/cm2 to 1.5 J/cm2. There was no statistically significant difference for B/T VH ratios between materials (P>0.05) when materials were cured with single-peak versus dual-peak LCU’s, XF>SDR>TEC>TBF. TBF alone, did not reach the generally accepted B/T VH of 80%. Conclusions: Both single-peak and dual-peak LCU’s were equally effective for curing the studied bulk fill materials. Manufacture’s recommended total energy delivered to the top surface may not always be sufficient for effective curing.</abstract>

Introduction: Manufactures claim that recently introduced bulk fill materials (BFM) can be cured adequately in 4 mm increments. This requires adequate light energy to be transmitted through the material to ensure adequate polymerization at the bottom of the increment. Aim: To compare the total light energy transmission through three BFMs and bottom/top (B/T) surface Vickers hardness (VH) when cured with single-peak versus dual-peak LED LCUs.Methods and Materials: Samples (n=5) of two viscous BFMs, Tetric EvoCeram® Bulk Fill X-tra fil® [XF] flowable SureFil, were prepared. A conventional RBC, Tetric EvoCeram® was used as a control. Using MARC® RC, the irradiance delivered to top surface of samples was adjusted to 1200 mW/cm2. Samples were cured with singlepeak EliparTM S10 or dual-peakBluephase® G2 for 10 seconds and irradiance transmitted to the bottom surface measured. Samples were stored for 24 hours, prior to VH measurements B/T VH ratios were calculated. Statistically analysed used oneway ANOVA (α=0.05).Results: There was no statistically significant difference for B/T total energy transmission between materials except XF with EliparTM S10 (P<0.001). Total energy transmission ranged from 0.7 J/cm2 to 1.5 J/cm2. There was no statistically significant difference for B/T VH ratios between materials (P>0.05) when materials were cured with single-peak versus dual-peak LCU’s, XF>SDR>TEC>TBF. TBF alone, did not reach the generally accepted B/T VH of 80%. Conclusions: Both single-peak and dual-peak LCU’s were equally effective for curing the studied bulk fill materials. Manufacture’s recommended total energy delivered to the top surface may not always be sufficient for effective curing.

Bulk Fill Resin Composite Materials Cured with Single-Peak versus Dual-Peak LED LCUs

Department of Paediatric Dentistry. The University of Edinburgh, Edinburgh Dental Institute, Lauriston Place, Edinburgh EH3 9HA, United Kingdom

King Salman Hospital, Ministry of Health, Riyadh, Kingdom of Saudi Arabia

The University of Medicine & Pharmacy, Tg-Mures, Romania

Acta Marisiensis - Seria Medica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Introduction: Manufactures claim that recently introduced bulk fill materials (BFM) can be cured adequately in 4 mm increments. This requires adequate light energy to be transmitted through the material to ensure adequate polymerization at the bottom of the increment. Aim: To compare the total light energy transmission through three BFMs and bottom/top (B/T) surface Vickers hardness (VH) when cured with single-peak versus dual-peak LED LCUs.Methods and Materials: Samples (n=5) of two viscous BFMs, Tetric EvoCeram® Bulk Fill X-tra fil® [XF] flowable SureFil, were prepared. A conventional RBC, Tetric EvoCeram® was used as a control. Using MARC® RC, the irradiance delivered to top surface of samples was adjusted to 1200 mW/cm2. Samples were cured with singlepeak EliparTM S10 or dual-peakBluephase® G2 for 10 seconds and irradiance transmitted to the bottom surface measured. Samples were stored for 24 hours, prior to VH measurements B/T VH ratios were calculated. Statistically analysed used oneway ANOVA (α=0.05).Results: There was no statistically significant difference for B/T total energy transmission between materials except XF with EliparTM S10 (P0.05) when materials were cured with single-peak versus dual-peak LCU’s, XF>SDR>TEC>TBF. TBF alone, did not reach the generally accepted B/T VH of 80%. Conclusions: Both single-peak and dual-peak LCU’s were equally effective for curing the studied bulk fill materials. Manufacture’s recommended total energy delivered to the top surface may not always be sufficient for effective curing.

Introduction: Manufactures claim that recently introduced bulk fill materials (BFM) can be cured adequately in 4 mm increments. This requires adequate light...

Bulk Fill Resin Composite Materials Cured with Single-Peak versus Dual-Peak LED LCUs

Published Online: Feb 09, 2016

Page range: 5 - 14

Received: Sep 23, 2015

Accepted: Jan 08, 2016

DOI: https://doi.org/10.1515/amma-2016-0009

Keywords
Bulk-Fill Composite, Single-peak LED, Dual-peak LED

© by Ario Santini

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Bulk Fill Resin Composite Materials Cured with Single-Peak versus Dual-Peak LED LCUs

Published Online: Feb 09, 2016

Page range: 5 - 14

Received: Sep 23, 2015

Accepted: Jan 08, 2016

DOI: https://doi.org/10.1515/amma-2016-0009

KeywordsBulk-Fill Composite, Single-peak LED, Dual-peak LED

© by Ario Santini

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Bulk-Fill Composite, Single-peak LED, Dual-peak LED