Han Jian-Min, Hong Guang, Dilinuer Maimaitishawuti, Lin Hong, Zheng Gang, Wang Xin-Zhi, Sasaki Keiichi
Dental Materials Laboratory, National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology , Beijing , PR China.
Acta Odontol Scand. 2014 Nov;72(8):839-45. doi: 10.3109/00016357.2014.913309. Epub 2014 May 5.
To examine the initial viscosity and adhesive strength of modern denture adhesives in vitro.
Three cream-type denture adhesives (Poligrip S, Corect Cream, Liodent Cream; PGS, CRC, LDC) and three powder-type denture adhesives (Poligrip Powder, New Faston, Zanfton; PGP, FSN, ZFN) were used in this study. The initial viscosity was measured using a controlled-stress rheometer. The adhesive strength was measured according to ISO-10873 recommended procedures. All data were analyzed independently by one-way analysis of variance combined with a Student-Newman-Keuls multiple comparison test at a 5% level of significance.
The initial viscosity of all the cream-type denture adhesives was lower than the powder-type adhesives. Before immersion in water, all the powder-type adhesives exhibited higher adhesive strength than the cream-type adhesives. However, the adhesive strength of cream-type denture adhesives increased significantly and exceeded the powder-type denture adhesives after immersion in water. For powder-type adhesives, the adhesive strength significantly decreased after immersion in water for 60 min, while the adhesive strength of the cream-type adhesives significantly decreased after immersion in water for 180 min.
Cream-type denture adhesives have lower initial viscosity and higher adhesive strength than powder type adhesives, which may offer better manipulation properties and greater efficacy during application.
在体外检测现代义齿黏附剂的初始黏度和黏附强度。
本研究使用了三种乳膏型义齿黏附剂(波利格利普S、科雷克乳膏、利奥登特乳膏;PGS、CRC、LDC)和三种粉末型义齿黏附剂(波利格利普粉末、新法斯顿、赞夫顿;PGP、FSN、ZFN)。使用控制应力流变仪测量初始黏度。根据ISO-10873推荐的程序测量黏附强度。所有数据均通过单因素方差分析结合Student-Newman-Keuls多重比较检验进行独立分析,显著性水平为5%。
所有乳膏型义齿黏附剂的初始黏度均低于粉末型黏附剂。在浸入水中之前,所有粉末型黏附剂的黏附强度均高于乳膏型黏附剂。然而,乳膏型义齿黏附剂在浸入水中后的黏附强度显著增加,并超过了粉末型义齿黏附剂。对于粉末型黏附剂,浸入水中60分钟后黏附强度显著降低,而乳膏型黏附剂在浸入水中180分钟后黏附强度显著降低。
乳膏型义齿黏附剂比粉末型黏附剂具有更低的初始黏度和更高的黏附强度,这在应用过程中可能具有更好的操作性能和更高的疗效。