title: A scanning electronic microscopy study of the action of different desensitizing agents on bovine dentin.
abstract: This study sought to use scanning electronic microscopy (SEM) to evaluate the dentinal tubule occlusion potential of different desensitizing agents. Ten slices of bovine dentin were divided into six fragments, cleaned (using ultrasound), and etched for 15 seconds with a 35% phosphoric acid solution. All but one of the groups received a different desensitizing agent; the sixth group served as a control and received no additional treatment. After the agents were applied, the dentin specimens were analyzed by SEM and scores were assigned based on the extent of tubular obliteration. Only three agents demonstrated tubular sealing that was significantly different from that of the control group.
authors.affiliation: Sao Jose dos Campos School of Dentistry, Sao Paulo State University, Brazil.
authors.forename: Fernanda Brandao
authors.initials: FB
authors.lastname: Mollica
authors.forename: Alessandro Caldas
authors.initials: AC
authors.lastname: Travassos
authors.forename: Carlos Rocha Gomes
authors.initials: CR
authors.lastname: Torres
authors.forename: Marcelo Fava
authors.initials: MF
authors.lastname: de Moraes
authors.forename: Marcelo
authors.initials: M
authors.lastname: Balsamo
mesh_terms: D000180:Acrylic Resins / Q000494:pharmacology / Q000627:therapeutic use; D000818:Animals; D002122:Calcium Chloride / Q000494:pharmacology / Q000627:therapeutic use; D002417:Cattle; D003804:Dentin / Q000187:drug effects* / Q000648:ultrastructure; D003807:Dentin Sensitivity / Q000188:drug therapy*; D005976:Glutaral / Q000494:pharmacology / Q000627:therapeutic use; D066298:In Vitro Techniques; D008689:Methacrylates / Q000494:pharmacology / Q000627:therapeutic use; D008855:Microscopy, Electron, Scanning; D009566:Nitrates / Q000494:pharmacology / Q000627:therapeutic use; D019815:Oxalic Acid / Q000494:pharmacology / Q000627:therapeutic use; D010710:Phosphates / Q000494:pharmacology / Q000627:therapeutic use; D017680:Potassium Compounds / Q000494:pharmacology / Q000627:therapeutic use; D013324:Strontium / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D000180:Acrylic Resins; D008689:Methacrylates; D009566:Nitrates; D010710:Phosphates; D017680:Potassium Compounds; C005044:hydroxyethyl methacrylate; D019815:Oxalic Acid; C013216:potassium phosphate; C025700:strontium chloride; D002122:Calcium Chloride; C023844:potassium nitrate; D005976:Glutaral; D013324:Strontium