IADR Abstract Archives
Evaluation of translucency for a new clear silicone material
Objectives: When clear silicone material is used as a clear matrix for curing restorative composite resin, there is a possible issue that the composite resin’s depth of cure is decreased . This may be due to curing light going through clear silicon materials which are not completely transparent. In addition, distance between resin and light curing unit is increased.
The aim of this study was to evaluate the translucency and effect for depth of cure of a newly developed clear silicone material.
Methods: Three commercially available clear silicone materials, EXACLEAR (GC America Inc.), Memosil (Heraeus Kulzer GmbH) and glassbite (DETAX GmbH) were examined. Each material was cured in a metal mold to form 8 mm thick disk.
Injectable resin composite, G-aenial Universal Flo A3 (GC America Inc.) was cured with curing light (GC Inc., G-Light Prima, 1200 mW/cm2, 10 seconds) through sample clear silicone disks. Depth of cure was measured according to ISO 4049. Results were statistically analyzed (ANOVA, Tukey’s p<0.05).
Results: Results are shown in table below.
Depth of cure with the EXACLEAR was significantly higher than results with the other 2 materials.
In addition, depth of cure with EXACLEAR is higher than control (air).
Conclusions: Based on this study,
EXACLEAR is the more transparent of those tested.
EXACLEAR works like the extention of the fiber rod of light curing unit.
Diffusion of light through EXACLEAR was smaller, and amount of light reaching composite resin was larger.
EXACLEAR is suitable as clear matrix material for curing restorative composite resins.
The aim of this study was to evaluate the translucency and effect for depth of cure of a newly developed clear silicone material.
Methods: Three commercially available clear silicone materials, EXACLEAR (GC America Inc.), Memosil (Heraeus Kulzer GmbH) and glassbite (DETAX GmbH) were examined. Each material was cured in a metal mold to form 8 mm thick disk.
Injectable resin composite, G-aenial Universal Flo A3 (GC America Inc.) was cured with curing light (GC Inc., G-Light Prima, 1200 mW/cm2, 10 seconds) through sample clear silicone disks. Depth of cure was measured according to ISO 4049. Results were statistically analyzed (ANOVA, Tukey’s p<0.05).
Results: Results are shown in table below.
Depth of cure with the EXACLEAR was significantly higher than results with the other 2 materials.
In addition, depth of cure with EXACLEAR is higher than control (air).
Conclusions: Based on this study,
EXACLEAR is the more transparent of those tested.
EXACLEAR works like the extention of the fiber rod of light curing unit.
Diffusion of light through EXACLEAR was smaller, and amount of light reaching composite resin was larger.
EXACLEAR is suitable as clear matrix material for curing restorative composite resins.