title: Silorane-based composite: depth of cure, surface hardness, degree of conversion, and cervical microleakage in Class II cavities.
abstract: OBJECTIVE
  The purpose of this study was to determine the depth of cure, degree of conversion (DC), hardness, and cervical sealing ability of silorane-based composite (Filtek Silorane [FS; 3M, Seefeld, Germany]) and to compare with methacrylate-based composites (MBCs = Filtek Supreme XT [FSXT] and Filtek P60 [FP60]).
  
  
  METHODS
  The DC and hardness of every material were evaluated after 1, 7, and 30 days. The depth of cure was determined using the ISO 4049:2000 standard. Microleakage was evaluated by measuring dye penetration across the gingival wall in cross-sectioned specimens.
  
  
  RESULTS
  FS showed lower depth of cure than FSXT and FP60. The DC of FS was significantly lower when compared to FP60 and FSXT. FS exhibited lower hardness than both FSXT and FP60 after 1 day of storage. The hardness of FS remained unchanged during the storage period. FS showed reduced microleakage scores compared to FSXT and showed similar microleakage scores compared to FP60.
  
  
  CONCLUSIONS
  In conclusion, the DC and cure depth of FS are lower than those of MBCs. However, FS revealed stable hardness in water that is comparable to MBCs. The sealing ability of FS is similar or even better than that of MBCs.
authors: Department of Pediatric Dentistry, Karadeniz Technical University, Trabzon, Turkey. ademkusgoz@hotmail.com
authors: Adem
authors: A
authors: Kusgoz
authors: Mustafa
authors: M
authors: Ülker
authors: Cemal
authors: C
authors: Yesilyurt
authors: Oguz Hamdi
authors: OH
authors: Yoldas
authors: Musa
authors: M
authors: Ozil
authors: Mehmet
authors: M
authors: Tanriver
mesh_terms: D003188:Composite Resins / Q000737:chemistry* / Q000528:radiation effects*; D055117:Curing Lights, Dental; D003737:Dental Cavity Preparation / Q000145:classification; D003763:Dental Leakage; D006244:Hardness; D006801:Humans; D055115:Light-Curing of Dental Adhesives; D008689:Methacrylates / Q000737:chemistry / Q000528:radiation effects; D058105:Polymerization; D062047:Silorane Resins; D012833:Siloxanes / Q000737:chemistry / Q000528:radiation effects; D018709:Statistics, Nonparametric
chemical_list: D003188:Composite Resins; C438835:Filtek P60 Composite Resin; C474035:Filtek Supreme; D008689:Methacrylates; D062047:Silorane Resins; D012833:Siloxanes; C555513:silorane composite resin