Conclusion
All powders caused abrasion on both the enamel and exposed root surfaces
in the present study. Sodium bicarbonate-based powder is more abrasive
than glycine and erythritol-based powders and may not be recommended use
for supragingival air-polishing in patients with gingival recessions.
Glycine and erythritol-based powders can be used for supragingival air
polishing in patients with gingival recession, however, it should be
kept in mind that these powders cause less abrasion on the enamel and
root surfaces. All powders caused more abrasion at the maximum power
setting than the lower setting. For this reason, it is recommended that
the power setting be set to the minimum level at which stain, and plaque
can be removed effectively.