Chiérici R A, Perez Orrico S R, De Toledo B E, Marcantonio Júnior E, Onofre M A
FO/Araraquara UNESP.
RGO. 1990 May-Jun;38(3):166-70.
The effect of sodium bicarbonate jet (Profident System) on the gingival tissue was tested with comparison of application from 2 different angles: the angulation recommended by the manufacturer and ponted to the occlusal surface. The results showed a definite influence of the angulation on tissue trauma, with lesser degrees of injury when the modified angulation was applied.
通过比较从两个不同角度应用（制造商推荐的角度和指向咬合面的角度），测试了碳酸氢钠喷射（Profident系统）对牙龈组织的影响。结果表明角度对组织创伤有明确影响，采用改良角度时损伤程度较小。
