title: Length of resin tags in pit-and-fissure sealants: all-in-one self-etching adhesive vs phosphoric acid etching.
abstract: OBJECTIVE
  To investigate the penetration (tags) of adhesive materials into enamel etched with phosphoric acid or treated with a self-etching adhesive, before application of a pit-and-fissure sealant.
  
  
  METHODS
  The sample comprised six study groups with six specimens each. Before pit-and-fissure sealing with the materials Clinpro SealantTM (Groups I and II), Vitro Seal ALPHA (Groups III and IV) and Fuji II LC (Groups V and VI), the teeth in Groups I, III, and V were etched with 35% phosphoric acid for 30 seconds. Teeth in Groups II, IV, and VI received application of the self-etching adhesive Adper Prompt L-Pop. The treated teeth were sectioned buccolingually, ground to 100-microm thickness, decalcified, and analyzed by conventional light microscopy at 400x magnification.
  
  
  RESULTS
  The teeth etched with phosphoric acid exhibited significantly greater penetration than specimens treated with self-etching adhesive.
  
  
  CONCLUSIONS
  When compared with enamel treated with a self-etching adhesive, the penetration (tags) of adhesive materials into enamel was greater when applied on enamel etched with phosphoric acid.
authors.affiliation: Department of Community Dentistry, Araçatuba Dental School, Universidade Estadual Paulista, Araçatuba, Brazil.
authors.forename: Karina Tonini
authors.initials: KT
authors.lastname: dos Santos
authors.forename: Renato Herman
authors.initials: RH
authors.lastname: Sundfeld
authors.forename: Cléa Adas Saliba
authors.initials: CA
authors.lastname: Garbin
authors.forename: Rodrigo Sversut
authors.initials: RS
authors.lastname: de Alexandre
authors.forename: Maria Lúcia Marçal Mazza
authors.initials: ML
authors.lastname: Sundefeld
authors.forename: Bruna Nakae
authors.initials: BN
authors.lastname: Ceolim
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D020770:Compomers / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003743:Dental Enamel / Q000648:ultrastructure*; D003764:Dental Materials / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D010756:Phosphoric Acids / Q000737:chemistry*; D010895:Pit and Fissure Sealants / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties
chemical_list: C500418:Clinpro Sealant; D020770:Compomers; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants; C408584:Prompt L-Pop; D019279:Resin Cements; C084541:Fuji glass-ionomer lining cement; C030242:phosphoric acid