| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1428569 | Materials Science and Engineering: C | 2014 | 10 Pages |
•Identification of treated DCPA with the potential to generate mineralization•Nanocrystal-treated DCPA helps prevent strength decline.•Treated filler capped with silane enhances mineralization.•Characteristics of composite resins were examined via thermal cycling.•Mineralizing abilities of resins were proportional to increasing thermal cycles.
The mineralizing capabilities of surface-modified dicalcium phosphate anhydrous (DCPA), reinforced and treated with nanocrystals and capped with silane, in composite resins were analyzed via thermal cycling. We compared two light-curable composites that were mixed at filler-to-resin mass ratios of 30/70 and 50/50. The strengths, elastic moduli, and topographical structures of the samples were determined after thermal cycling between 5 and 55 °C in deionized water for 600 and 2400 cycles. Silane-capped particles decreased the strength but enhanced the mineralizing capability of the composites. Nanocrystal-treated filler surfaces significantly increased the strength and moduli of the composites after 600 thermal cycles. However, these values declined after 2400 thermal cycles. The nanocrystal-treated filler surfaces prevented the reduction in strength before and after 2400 thermal cycles. Prior to silane capping, the nanocrystal-treated DCPA filler surfaces exhibited good mineralization capability without compromising strength. The potential for barrier generation through mineralization yielded positive effects and prevented micro-leakages.
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