Sousa Neto M D, Guimarães L F, Gariba Silva R, Saquy P C, Pécora J D
Faculdade de Odontologia, Universidade de Ribeirão Preto, SP, Brasil.
Braz Dent J. 1998;9(1):11-8.
In this study, the effect of different grades of rosin and hydrogenated resin on the setting time of Grossman cement was evaluated. The experiments were carried following the American Dental Association Specification number 57 for root canal sealers. For this analysis, different Grossman cement powders were prepared using different grades of rosin (X,WW and WG) and hydrogenated resin (Staybelite and Staybelite ester 10). The pH and electrical conductance of the different grades of rosin and hydrogenated resin were evaluated. The physicochemical properties of the Grossman cements obtained with the different grades of rosin and hydrogenated resins interfere in the powder-liquid ratio of the cements. The sealers obtained with the hydrogenated resin showed a higher powder-liquid ratio.
在本研究中，评估了不同等级的松香和氢化树脂对格罗斯曼水泥凝固时间的影响。实验按照美国牙科协会根管封闭剂规范第57号进行。为了进行此分析，使用不同等级的松香（X、WW和WG）和氢化树脂（斯代玻来特和斯代玻来特酯10）制备了不同的格罗斯曼水泥粉末。评估了不同等级的松香和氢化树脂的pH值和电导率。用不同等级的松香和氢化树脂获得的格罗斯曼水泥的物理化学性质会影响水泥的粉液比。用氢化树脂获得的封闭剂显示出更高的粉液比。
