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[Effect of Profident on gingival tissue. 2. The effect of sodium bicarbonate jet on gingival tissue with variations in the angle of incidence. Histological analysis].

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.