title: Effects of the preparation technique and type of material on the penetrability of sealants.
abstract: The purpose of this in vitro study was to compare the penetration of 2 resin-based and 2 glass ionomer sealants into fissures after either conventional or mechanical preparation. All the materials placed in the conventionally prepared and mechanically prepared fissures penetrated the fissures beyond the standard (0.5-mm) reference line used in this study. For 1 glass ionomer sealant, the number of specimens showing complete penetration of sealant was significantly greater (P < 0.05) in mechanically prepared fissures than in conventionally prepared ones. No significant differences were found between mechanically and conventionally prepared fissures for the other sealants.
authors.forename: John S
authors.initials: JS
authors.lastname: Cho
authors.forename: David
authors.initials: D
authors.lastname: Covey
authors.forename: Faika
authors.initials: F
authors.lastname: Abdelmegid
authors.forename: Fouad
authors.initials: F
authors.lastname: Salama
mesh_terms: D000180:Acrylic Resins / Q000627:therapeutic use; D003731:Dental Caries / Q000517:prevention & control; D006801:Humans; D066298:In Vitro Techniques; D010895:Pit and Fissure Sealants / Q000627:therapeutic use*; D019279:Resin Cements / Q000627:therapeutic use; D012822:Silicon Dioxide / Q000627:therapeutic use; D019246:Tooth Preparation / Q000379:methods*; D016896:Treatment Outcome
chemical_list: D000180:Acrylic Resins; D010895:Pit and Fissure Sealants; D019279:Resin Cements; C015897:glass ionomer; D012822:Silicon Dioxide
keywords: enameloplasty; fissure sealants; glass ionomer sealant; resin-based sealant