目的研究Vector系统进行牙周基础治疗的临床效果。方法采用口内自身对照方法,选择58例慢性牙周炎患者,口内A、D区设为试验组,B、C区设为对照组。所有患者行超声洁治后,试验组应用Vector系统行龈下刮治及根面平整术(scaling and root pla...目的研究Vector系统进行牙周基础治疗的临床效果。方法采用口内自身对照方法,选择58例慢性牙周炎患者,口内A、D区设为试验组,B、C区设为对照组。所有患者行超声洁治后,试验组应用Vector系统行龈下刮治及根面平整术(scaling and root planning,SRP),对照组应用Gracey刮治器械行SRP。对2组SRP的治疗时间,SRP前(基线期)及SRP后1、3、6个月的龈沟出血指数、探诊出血、探诊深度及附着水平进行比较,视觉模拟疼痛评级法(visual analogue scale,VAS)评定2组的疼痛程度。结果试验组每区的SRP治疗时间为(25.15±1.35)min,明显短于对照组的(40.11±1.08)min(Z=3.625,P<0.05)。SRP后各观察时点,2组的各项牙周指数较治疗前均有明显改善(P<0.05),但2组间各项牙周指数的差异均无统计学意义(P>0.05)。试验组SRP结束时(Zc=2.356,P<0.05)及治疗后1d(Zc=3.138,P<0.05)的VAS评分明显低于对照组。结论Vector系统能缩短临床操作时间,提高牙周基础治疗舒适度,有效改善慢性牙周炎的临床症状。展开更多
A series of 30-nm-thick epitaxial NixCo1-x （002） alloy films are fabricated by DC magnetron sputtering. MgO （002） and SrTiO3 （002） single substrates are used for x 〉 0.5 and x 〈 0.5, respectively. The magnetoc...A series of 30-nm-thick epitaxial NixCo1-x （002） alloy films are fabricated by DC magnetron sputtering. MgO （002） and SrTiO3 （002） single substrates are used for x 〉 0.5 and x 〈 0.5, respectively. The magnetocrystalline anisotropy of NixCO1-x （002） alloy films is studied in the entire composition region for 0 ≤ x ≤ 1.0. When x decreases, the cubic magnetic anisotropy constant K1 changes sign from negative to positive atx = 0.96 and becomes negative again atx = 0.79. It becomes more negative as x decreases from 0.79 to 0. The uniaxial anisotropy Ku is smaller than the K1 by a factor of two orders.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.11374227,51331004,51171129,and 51201114)the Shanghai Science and Technology Committee,China(Grant Nos.0252nm004,13XD1403700,and 13520722700)
文摘A series of 30-nm-thick epitaxial NixCo1-x （002） alloy films are fabricated by DC magnetron sputtering. MgO （002） and SrTiO3 （002） single substrates are used for x 〉 0.5 and x 〈 0.5, respectively. The magnetocrystalline anisotropy of NixCO1-x （002） alloy films is studied in the entire composition region for 0 ≤ x ≤ 1.0. When x decreases, the cubic magnetic anisotropy constant K1 changes sign from negative to positive atx = 0.96 and becomes negative again atx = 0.79. It becomes more negative as x decreases from 0.79 to 0. The uniaxial anisotropy Ku is smaller than the K1 by a factor of two orders.
