title: Effect of Nd:YAG laser on the solvent evaporation of adhesive systems.
abstract: OBJECTIVE
  This study evaluated the influence of Nd:YAG laser on the evaporation degree (ED) of the solvent components in total-etch and self-etch adhesives.
  
  
  METHODS
  The ED of Gluma Comfort Bond (Heraeus-Kulzer) one-step self-etch adhesive, and Adper Single Bond 2 (3M ESPE), and XP Bond (Dentsply) total-etch adhesives was determined by weight alterations using two techniques: Control--spontaneous evaporation of the solvent for 5 min; Experimental--Nd:YAG laser irradiation for 1 min, followed by spontaneous evaporation for 4 min. The weight loss due to evaporation of the volatile components was measured at baseline and after 10 s, 20 s, 30 s, 40 s, 50 s, 60 s, 70 s, 80 s, 90 s, 100 s, 110 s, 2 min, 3 min, 4 min, and 5 min.
  
  
  RESULTS
  Evaporation of solvent components significantly increased with Nd:YAG laser irradiation for all adhesives investigated. Gluma Comfort Bond showed significantly higher evaporation of solvent components than Adper Single Bond 2 and XP Bond. All the adhesives lost weight quickly during the first min of Nd:YAG laser irradiation.
  
  
  CONCLUSIONS
  The application of Nd:YAG laser on adhesives before light curing had a significant effect on the evaporation of the solvent components, and the ED of Gluma Comfort Bond one-step self-etch adhesive was significantly higher than with Adper Single Bond 2 and XP Bond total-etch adhesives.
  
  
  CONCLUSIONS
  The use of the Nd:YAG laser on the uncured adhesive technique can promote a greater ED of solvents, optimizing the longevity of the adhesive restorations.
authors.forename: Graziela Ribeiro
authors.initials: GR
authors.lastname: Batista
authors.forename: Daphne Câmara
authors.initials: DC
authors.lastname: Barcellos
authors.forename: Carlos
authors.initials: C
authors.lastname: Rocha Gomes Torres
authors.forename: Álvaro José
authors.initials: ÁJ
authors.lastname: Damião
authors.forename: Hueder Paulo Moisés
authors.initials: HP
authors.lastname: de Oliveira
authors.forename: Sérgio Eduardo
authors.initials: SE
authors.lastname: de Paiva Gonçalves
mesh_terms: D003738:Dental Cements / Q000737:chemistry / Q000528:radiation effects; D017220:Dentin-Bonding Agents / Q000737:chemistry* / Q000528:radiation effects; D006801:Humans; D006813:Humidity; D053844:Lasers, Solid-State; D055115:Light-Curing of Dental Adhesives / Q000379:methods; D008422:Materials Testing; D044367:Phase Transition; D012997:Solvents / Q000737:chemistry* / Q000528:radiation effects; D013696:Temperature; D013997:Time Factors; D014835:Volatilization
chemical_list: C554641:Adper single bond 2; D003738:Dental Cements; D017220:Dentin-Bonding Agents; C445021:Gluma Comfort Bond; D012997:Solvents; C532387:XP-Bond