Open AccessComparison of light-emitting diode-curing unit and halogen-based light-curing unit for the polymerization of orthodontic resins: An in vitro study
Author(s) -
Guneet Guram,
Junaid Ahmed Shaik
Publication year - 2018
Publication title -
journal of international society of preventive and community dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.476
H-Index - 14
eISSN - 2250-1002
pISSN - 2231-0762
DOI - 10.4103/jispcd.jispcd_302_17
Subject(s) - crosshead , adhesive , materials science , universal testing machine , bracket , halogen lamp , dentistry , curing (chemistry) , single bond , composite number , bond strength , dental bonding , composite material , flexural strength , chemistry , medicine , group (periodic table) , structural engineering , organic chemistry , physics , optics , layer (electronics) , engineering , ultimate tensile strength
Conventionally, composites are cured using halogen-based light-curing units (LCUs). However, recently, light-emitting diode (LED) LCUs have been introduced commercially, claiming many advantages, yet producing comparable bond strength even when cured with single LED LCUs. This present study was undertaken to compare the shear bond strength of orthodontic brackets bonded to teeth with conventional halogen LCU (3M ESPE Elipar 2500) and LED LCU (3M ESPE Elipar FreeLight 2) and to determine the site of bond failure.