Abstract
References
- 1. Firouzmandi M, Doozandeh M, Jowkar Z, Abbasi S. Effect of composite/amalgam thickness on fracture resistance of maxillary premolar teeth, restored with combined amalgam-composite restorations. J Clin Exp Dent 2016;8:e268-72.
- 2. Kemaloglu H, Pamir T, Tezel H. A 3-year randomized clinical trial evaluating two different bonded posterior restorations: Amalgam versus resin composite. Eur J Dent 2016;10:16-22.
- 3. Dietschi D, Marret N, Krejci I. Comparative efficiency of plasma and halogen light sources on composite micro-hardness in different curing conditions. Dent Mater 2003;19:493-500.
- 4. Heintze SD, Rousson V. Clinical effectiveness of direct class II restorations - a meta-analysis. J Adhes Dent 2012;14:407-31.
- 5. Sunnegardh-Gronberg K, van Dijken JW, Funegard U, Lindberg A, Nilsson M. Selection of dental materials and longevity of replaced restorations in Public Dental Health clinics in northern Sweden. J Dent 2009;37:673-8.
- 6. Rho YJ, Namgung C, Jin BH, Lim BS, Cho BH. Longevity of direct restorations in stress-bearing posterior cavities: a retrospective study. Oper Dent 2013;38:572-82.
- 7. Rasines Alcaraz MG, Veitz-Keenan A, Sahrmann P, Schmidlin PR, Davis D, Iheozor-Ejiofor Z. Direct composite resin fillings versus amalgam fillings for permanent or adult posterior teeth. Cochrane Database Syst Rev 2014;3.
- 8. Hammouda IM. Effect of light-curing method on wear and hardness of composite resin. J Mech Behav Biomed Mater 2010;3:216-222.
- 9. Ferracane JL, Berge HX, Condon JR. In vitro aging of dental composites in water--effect of degree of conversion, filler volume, and filler/matrix coupling. J Biomed Mater Res 1998;42:465-72.
- 10. Haenel T, Hausnerova B, Steinhaus J, Price RB, Sullivan B, Moeginger B. Effect of the irradiance distribution from light curing units on the local micro-hardness of the surface of dental resins. Dent Mater 2015;31:93-104.
- 11. Jandt KD, Mills RW. A brief history of LED photopolymerization. Dent Mater 2013;29:605-17.
- 12. Gonulol N, Ozer S, Tunc ES. Effect of a third-generation LED LCU on microhardness of tooth-colored restorative materials. Int J Paediatr Dent 2016;26:376-82.
- 13. Yaman BC, Efes BG, Dorter C, Gomec Y, Erdilek D, Buyukgokcesu S. The effects of halogen and light-emitting diode light curing on the depth of cure and surface microhardness of composite resins. J Conserv Dent 2011;14:136-9.
- 14. Tsai PC, Meyers IA, Walsh LJ. Depth of cure and surface microhardness of composite resin cured with blue LED curing lights. Dent Mater 2004;20:364-9.
- 15. de Oliveira DC, Rocha MG, Correa IC, Correr AB, Ferracane JL, Sinhoreti MA. The effect of combining photoinitiator systems on the color and curing profile of resin-based composites. Dent Mater 2016;32:1209-17.
- 16. Shimokawa CA, Turbino ML, Harlow JE, Price HL, Price RB. Light output from six battery operated dental curing lights. Mater Sci Eng C Mater Biol Appl 2016;69:1036-42.
- 17. Agrawal A, Manwar NU, Hegde SG, Chandak M, Ikhar A, Patel A. Comparative evaluation of surface hardness and depth of cure of silorane and methacrylate-based posterior composite resins: An in vitro study. J Conserv Dent 2015;18:136-9.
- 18. Menees TS, Lin CP, Kojic DD, Burgess JO, Lawson NC. Depth of cure of bulk fill composites with monowave and polywave curing lights. Am J Dent 2015;28:357-61.
- 19. Alshali RZ, Silikas N, Satterthwaite JD. Degree of conversion of bulk-fill compared to conventional resin-composites at two time intervals. Dent Mater 2013;29:e213-7.
- 20. Mousavinasab SM, Meyers I. Comparison of Depth of Cure, Hardness and Heat Generation of LED and High Intensity QTH Light Sources. Eur J Dent 2011;5:299-304.
- 21. MM AL, Haenel T, Sullivan B, Labrie D, Alqahtani MQ, Price RB. Effect of a broad-spectrum LED curing light on the Knoop microhardness of four posterior resin based composites at 2, 4 and 6-mm depths. J Dent 2016;45:14-8.
- 22. de Moraes Porto IC, Ramos de Brito AC, Parolia A. Effect of cross infection control barriers used on the light-curing device tips on the cure depth of a resin composite. J Conserv Dent 2013;16:224-8.
- 23. Leprince J, Devaux J, Mullier T, Vreven J, Leloup G. Pulpal-temperature rise and polymerization efficiency of LED curing lights. Oper Dent 2010;35:220-30.
- 24. Roberts HW, Berzins DW, Charlton DG. Hardness of three resin-modified glass-ionomer restorative materials as a function of depth and time. J Esthet Restor Dent 2009;21:262-72.
- 25. Campregher UB, Samuel SM, Fortes CB, Medina AD, Collares FM, Ogliari FA. Effectiveness of second-generation light-emitting diode (LED) light curing units. J Contemp Dent Pract 2007;8:35-42.
Influence Of Different Led Curing-Units On Depth Of Cure and Micro-Hardness Of Nano-Hybrid Resin Composite
Abstract
Purpose: To evaluate the effect of two second generation LED Light curing units and a third-generation polywave LED Ligth curing unit at three different irradiation durations on surface microhardness and detpth of cure of nanofilled composite resin material.
Materials and Methods: EliparTM S10, EliparTM Deep Cure-S, VALO Cordless, was evaluated at 10s, 20s, 40s curing periods in this study. A nanofilled composite FiltekTM Z550 that contains camphorquinone as photoinitiator is used as test material. For microhardness test ninety 6 mm diameter, 4 mm deep cylindrical composite blocks in teflon molds were prepared. For each light source at each application times 10 specimen were prepared (n=10) and tested. Also ninety, 4 mm diameter, 6 mm deep cylindrical composite specimens in a split aluminum mold polymerized with three different light sources at three different durations (n=10) were tested for depth of cure measurement. Data were analyzed statistically by SPSS (Ver: 22.0) and significance test of the difference between the two means (Kolmogorov-Simirnov), the variance analysis, and the Tukey Test used.
Results: The values of cure depth were found significantly higher at 40 seconds of irradiation time for all light sources used (p<0.05). Elipar Deep Cure-S showed the higher top surface microhardness at 40s polymerization (p<0.05)
Conclusion: All light devices used in the study provided adequate polymerization of the nanofill composite at all application durations in this study. The highest polymerization depth and microhardness values were achieved at 40 sec. polymerization time for all LCUs.s
References
- 1. Firouzmandi M, Doozandeh M, Jowkar Z, Abbasi S. Effect of composite/amalgam thickness on fracture resistance of maxillary premolar teeth, restored with combined amalgam-composite restorations. J Clin Exp Dent 2016;8:e268-72.
- 2. Kemaloglu H, Pamir T, Tezel H. A 3-year randomized clinical trial evaluating two different bonded posterior restorations: Amalgam versus resin composite. Eur J Dent 2016;10:16-22.
- 3. Dietschi D, Marret N, Krejci I. Comparative efficiency of plasma and halogen light sources on composite micro-hardness in different curing conditions. Dent Mater 2003;19:493-500.
- 4. Heintze SD, Rousson V. Clinical effectiveness of direct class II restorations - a meta-analysis. J Adhes Dent 2012;14:407-31.
- 5. Sunnegardh-Gronberg K, van Dijken JW, Funegard U, Lindberg A, Nilsson M. Selection of dental materials and longevity of replaced restorations in Public Dental Health clinics in northern Sweden. J Dent 2009;37:673-8.
- 6. Rho YJ, Namgung C, Jin BH, Lim BS, Cho BH. Longevity of direct restorations in stress-bearing posterior cavities: a retrospective study. Oper Dent 2013;38:572-82.
- 7. Rasines Alcaraz MG, Veitz-Keenan A, Sahrmann P, Schmidlin PR, Davis D, Iheozor-Ejiofor Z. Direct composite resin fillings versus amalgam fillings for permanent or adult posterior teeth. Cochrane Database Syst Rev 2014;3.
- 8. Hammouda IM. Effect of light-curing method on wear and hardness of composite resin. J Mech Behav Biomed Mater 2010;3:216-222.
- 9. Ferracane JL, Berge HX, Condon JR. In vitro aging of dental composites in water--effect of degree of conversion, filler volume, and filler/matrix coupling. J Biomed Mater Res 1998;42:465-72.
- 10. Haenel T, Hausnerova B, Steinhaus J, Price RB, Sullivan B, Moeginger B. Effect of the irradiance distribution from light curing units on the local micro-hardness of the surface of dental resins. Dent Mater 2015;31:93-104.
- 11. Jandt KD, Mills RW. A brief history of LED photopolymerization. Dent Mater 2013;29:605-17.
- 12. Gonulol N, Ozer S, Tunc ES. Effect of a third-generation LED LCU on microhardness of tooth-colored restorative materials. Int J Paediatr Dent 2016;26:376-82.
- 13. Yaman BC, Efes BG, Dorter C, Gomec Y, Erdilek D, Buyukgokcesu S. The effects of halogen and light-emitting diode light curing on the depth of cure and surface microhardness of composite resins. J Conserv Dent 2011;14:136-9.
- 14. Tsai PC, Meyers IA, Walsh LJ. Depth of cure and surface microhardness of composite resin cured with blue LED curing lights. Dent Mater 2004;20:364-9.
- 15. de Oliveira DC, Rocha MG, Correa IC, Correr AB, Ferracane JL, Sinhoreti MA. The effect of combining photoinitiator systems on the color and curing profile of resin-based composites. Dent Mater 2016;32:1209-17.
- 16. Shimokawa CA, Turbino ML, Harlow JE, Price HL, Price RB. Light output from six battery operated dental curing lights. Mater Sci Eng C Mater Biol Appl 2016;69:1036-42.
- 17. Agrawal A, Manwar NU, Hegde SG, Chandak M, Ikhar A, Patel A. Comparative evaluation of surface hardness and depth of cure of silorane and methacrylate-based posterior composite resins: An in vitro study. J Conserv Dent 2015;18:136-9.
- 18. Menees TS, Lin CP, Kojic DD, Burgess JO, Lawson NC. Depth of cure of bulk fill composites with monowave and polywave curing lights. Am J Dent 2015;28:357-61.
- 19. Alshali RZ, Silikas N, Satterthwaite JD. Degree of conversion of bulk-fill compared to conventional resin-composites at two time intervals. Dent Mater 2013;29:e213-7.
- 20. Mousavinasab SM, Meyers I. Comparison of Depth of Cure, Hardness and Heat Generation of LED and High Intensity QTH Light Sources. Eur J Dent 2011;5:299-304.
- 21. MM AL, Haenel T, Sullivan B, Labrie D, Alqahtani MQ, Price RB. Effect of a broad-spectrum LED curing light on the Knoop microhardness of four posterior resin based composites at 2, 4 and 6-mm depths. J Dent 2016;45:14-8.
- 22. de Moraes Porto IC, Ramos de Brito AC, Parolia A. Effect of cross infection control barriers used on the light-curing device tips on the cure depth of a resin composite. J Conserv Dent 2013;16:224-8.
- 23. Leprince J, Devaux J, Mullier T, Vreven J, Leloup G. Pulpal-temperature rise and polymerization efficiency of LED curing lights. Oper Dent 2010;35:220-30.
- 24. Roberts HW, Berzins DW, Charlton DG. Hardness of three resin-modified glass-ionomer restorative materials as a function of depth and time. J Esthet Restor Dent 2009;21:262-72.
- 25. Campregher UB, Samuel SM, Fortes CB, Medina AD, Collares FM, Ogliari FA. Effectiveness of second-generation light-emitting diode (LED) light curing units. J Contemp Dent Pract 2007;8:35-42.
Details
| Primary Language | English |
|---|---|
| Subjects | Health Care Administration |
| Journal Section | Original Research Articles |
| Authors | |
| Publication Date | February 24, 2021 |
| Submission Date | January 6, 2021 |
| Published in Issue | Year 2021Volume: 24 Issue: 1 |
Cited By
The Effect of Light-emitting Diode Light Intensities and Duration of Cure on Pulpal Wall Temperature among Different Classes of Teeth
International Journal of Clinical Pediatric Dentistry
https://doi.org/10.5005/jp-journals-10005-2826
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