title: Effect of air polishing with glycine and bicarbonate powders on a nanocomposite used in dental restorations: an in vitro study.
abstract: Air polishing increases the surface roughness of dental restorations, enhancing bacterial adhesion. This in vitro study was the first, to the authors' knowledge, to evaluate the effect of sodium bicarbonate and glycine powders, at different application distances (2 and 7 mm) and times (5, 10, and 30 seconds), on the surface roughness of a nanocomposite material used in restorations. Untreated slides were used as controls. Surface roughness was measured using atomic force microscopy. Air polishing with glycine powder for 5 seconds, at both application distances, determined the lowest surface damage. Even with all the limitations of any in vitro analysis, this study further supports the safety of this method of air polishing.
authors.affiliation: Tirrenian Stomatologic Institute, Lido di Camaiore, Lucca, Italy. giacomelli@istitutostomatologicotirreno.it
authors.forename: Luca
authors.initials: L
authors.lastname: Giacomelli
authors.forename: Marco
authors.initials: M
authors.lastname: Salerno
authors.forename: Giacomo
authors.initials: G
authors.lastname: Derchi
authors.forename: Annamaria
authors.initials: A
authors.lastname: Genovesi
authors.forename: Pier Paolo
authors.initials: PP
authors.lastname: Paganin
authors.forename: Ugo
authors.initials: U
authors.lastname: Covani
mesh_terms: D003188:Composite Resins / Q000737:chemistry; D003764:Dental Materials / Q000737:chemistry*; D003775:Dental Polishing / Q000379:methods*; D003793:Dental Restoration, Permanent; D005998:Glycine / Q000737:chemistry*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D053761:Nanocomposites / Q000737:chemistry*; D058105:Polymerization; D011208:Powders; D017693:Sodium Bicarbonate / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D011208:Powders; C488393:Venus (composite resin); D014867:Water; D017693:Sodium Bicarbonate; D005998:Glycine