title: Comparison of halogen versus LED light-cured temporary endodontic filling materials for sealing.
abstract: OBJECTIVE
  The purpose of this study was to compare the sealing ability of the three light-cured temporary restorative materials curing with two different light curing devices; halogen and LED.
  
  
  METHODS
  After the preparation of standard endodontic access cavities, the canal systems were instrumented by using a step-back technique irrigated with sodium hypochlorite and EDTA. Light-cured temporary restorative materials; First fill, Bioplic, and Diatemp were applied and polymerized with either of the LED or Halogen light-curing devices. The specimens were immersed in 2% methylene blue solution for four days in an incubator for the leakage assessment.
  
  
  RESULTS
  The first fill presented the least microleakage values for both the LED (2.54±0.53) and halogen (2.84±0.48) treated groups whereas; Diatemp presented the highest microleakage values for both the LED (2.83±0.59) and halogen (3.28±0.56) groups. The leakage values of all light-cured temporary filling materials for the LED-treated groups were lower than the halogen treated ones. However, there were statistically no significant differences among the three groups (P>0.05).
  
  
  CONCLUSIONS
  It is concluded that light curing temporary filling materials can achieve a good and comparable sealing capacity when cured by both LED and halogen LCUs.
authors.affiliation: Operative Dentistry and Endodontics Department, Ondokuz Mayis University, Faculty of Dentistry Samsun, Turkey - bodrumlu@omu.edu.tr.
authors.forename: E
authors.initials: E
authors.lastname: Bodrumlu
authors.forename: O
authors.initials: O
authors.lastname: Topuz
authors.forename: Ö
authors.initials: Ö
authors.lastname: Uzun
mesh_terms: D004396:Coloring Agents / Q000032:analysis; D055117:Curing Lights, Dental; D003763:Dental Leakage; D003794:Dental Restoration, Temporary; D006219:Halogens; D006801:Humans; D066298:In Vitro Techniques; D055115:Light-Curing of Dental Adhesives; D008422:Materials Testing; D008751:Methylene Blue / Q000032:analysis; D010895:Pit and Fissure Sealants / Q000528:radiation effects*; D058105:Polymerization; D011897:Random Allocation; D012387:Root Canal Filling Materials / Q000528:radiation effects*; D013696:Temperature
chemical_list: C584925:Bioplic; D004396:Coloring Agents; C584926:Diatemp; C584927:First Fill; D006219:Halogens; D010895:Pit and Fissure Sealants; D012387:Root Canal Filling Materials; D008751:Methylene Blue