Influence of light irradiation on Vickers hardness of dual-cure cement polymerized under restorations.
Influence of light irradiation on Vickers hardness of dual-cure cement polymerized under restorations.
复制标题
光照射对修复体下聚合的双固化水泥维氏硬度的影响。
DOI:
10.4012/dmj.2012-306
复制
发表时间:
2013
影响因子:
2.5
通讯作者:
Shiro Suzuki
中科院分区:
文献类型:
--
作者:
Daisaku Shiomuki;H. Minami;Takuo Tanaka;Shiro Suzuki
This study evaluated, by measuring Vickers hardness (Hv), the effects of these factors on the degree of polymerization of dual-cure cement (Panavia F2.0) placed under a restoration: light transmission property of restoratives materials, distance from the directly irradiated surface, and elapsed time after light irradiation. Two materials were used for the restoration: silver-palladium-copper-gold alloy (Alloy) versus zirconia (ZR). Restorations were cemented on bovine enamel by dual-cure cement. At 30 min, 2 h, 6 h, 1 day, and 1 week after definitive irradiation, Hv values at the enamel side of cement were evaluated at three measuring points: two points at the left and right margins and one point at the center. Data were analyzed by two-way ANOVA with Bonferroni correction (α=0.05). With the Alloy restoration, Hv value at the center was significantly lower than those at the margins at 30 min after irradiation. For both Alloy and ZR restorations, Hv value at each measuring point continued to increase significantly up to 6 h.
DOI:
--
发表时间:
2010
期刊:
Dental Materials Journal 29
影响因子:
--
作者:
Takahashi R;Nikaido T;Tagami J;他2人
通讯作者:
他2人