Ice research
ice an anterior and posterior, radiopaque, light cured microfilled hybrid composite.
performance
clinical performace
The aim of this study was to evaluate the resistance to corrosive wear of ICE and ROK and data were compared those of three popular brands, POINT 4 (Kerr-Sybron), Esthet (Caulk) and Supreme (3M/Espe). The corrosive wear had been simulated in two steps: A. CORROSION - Samples were exposed to 0.1 N NaOH (Sodium hydroxide) solution enriched with OH- at 60oC for two weeks. They were then washed and dried at 60oC. Each was measured for (i) Mass-loss (gravimetrically) (ii) Si-loss (ICP-AE) and (iii) Degradation depth (microscopically). The degrade surface of each brand was also characterised by scanning electron microscopy (SEM).
B. WEAR – Test composites were filled into ceramic discs and polished
to a flat surface. Samples were then corroded as above. Corroded
specimens were abraded in a tooth-brushing machine. The wear depth was
measured relative to the ceramic disc.
Ice, The Dental Advisor, Volume 21, No.6 2004 Ice is a light –cured, radiopaque, microfilled hybrid resin composite for both anterior and posterior direct restorations. The material is designed to have high translucency to improve blending with tooth structure. Instructions for use and packaging were well received by consultants. Among the most popular features were the match of the cured composite to the shade guide and the very good final polish. The translucency of the material was rated good to very good and the blending with tooth structure received good to excellent ratings from all consultants – a four stars rating.
This study evaluates the adhesion quality of composite restorations bonded to one-step (self-etching systems) and two-step (“total-etch”) adhesive systems. Study uses dye penetration test and stereomicroscopy for analysis. Ice and Stae were among the materials used by the authors to represent the two steps adhesive systems. It was found that two-step systems represent the best compromise between bond strength and quickness of use.
Objectives: The objective of this study was to evaluate the changes in color and color co-ordinates after accelerated aging of resin composites depending on the measuring modes of reflectance and transmittance. Methods: Color of seven resin composites (1- mm thick specimens) was measured in the reflectance mode and in the transmittance mode. After the baseline color measurement, the specimens were aged for total energy of 150 kJ/m2. Color change after aging was calculated in the reflectance mode and in the transmittance mode. Based on the data of A2 shade composites, the influence of measuring mode on the color change (∆E*ab) and changes in three color coordinates (∆L*, ∆a* and ∆b*) after aging was analysed by ANOVA (p<0.01). Results: Measuring mode influenced ∆E*ab, ∆L* and ∆a* values. There were significant correlations between the color changes measured in the reflectance mode and in the transmittance mode (r=0.91). Results suggest that Ice has the least colour shift of the seven materials tested.
Dr Jatinder Heer BDS, MFGDP, RCS runs a private practice in Coventry, UK, and has a specialist interest in dental implants and cosmetic dentistry. In this article, Dr Heer details the clinical procedure for restoring a lower fractured molar using Ice and Rok.
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