title: Effects of composite fissure sealants on IR laser fluorescence measurements.
abstract: The influence of composite fissure sealants on caries detection with IR laser fluorescence measurements should be assessed. Thirty-five extracted human teeth with 105 initial carious lesions were included. Six groups containing 15 lesions each were sealed with either a clear or a white version of three sealants. Group 7 was sealed with an experimental nanofilled material. Occlusal surfaces were irradiated by a diode laser (<1 mW, 655 nm). Fluorescence was measured before and after acid etching, directly and 1 week after application of the sealants. Values significantly increased after etching (p < 0.05). Compared to initial measurements, values decreased after sealing with the white materials (p < 0.05). There was no difference between values before and after sealing with the clear and the experimental materials (p > 0.05). All values were reproducible. The study indicates that it might be possible to monitor caries activity under clear or nanofilled fissure sealants by means of laser fluorescence.
authors.affiliation: Department of Operative Dentistry and Periodontology, University of Bonn, Bonn 53111, Germany. felix.krause@uni-bonn.de
authors.forename: Felix
authors.initials: F
authors.lastname: Krause
authors.forename: Andreas
authors.initials: A
authors.lastname: Braun
authors.forename: Matthias
authors.initials: M
authors.lastname: Frentzen
authors.forename: Søren
authors.initials: S
authors.lastname: Jepsen
mesh_terms: D003188:Composite Resins; D001840:Dental Bonding; D003731:Dental Caries / Q000175:diagnosis*; D003743:Dental Enamel; D005453:Fluorescence; D006801:Humans; D007834:Lasers; D010865:Pilot Projects; D010895:Pit and Fissure Sealants
chemical_list: D003188:Composite Resins; D010895:Pit and Fissure Sealants