title: Microleakage in Class V composite and compomer restorations following exposure to a colutory prescribed for the treatment of xerostomy.
abstract: The purpose of this study was to evaluate the effect of a colutory (XeroLacer, Lacer), prescribed for the treatment of xerostomy, on microleakage into class V cavities filled with a composite (Z100, 3M ESPE) or a compomer (F2000, 3M ESPE) in combination with either a two-step etch-and-rinse adhesive (Adper Scotchbond 1XT, 3M ESPE) or a self-etching adhesive (Adper Prompt L-Pop, 3M ESPE). Class V cavities were made in the buccal surfaces of 80 bovine lower incisors which were randomly divided into four groups (n = 20): (1) Adper Scotchbond 1XT/Z100; (2) Adper Scotchbond 1XT/F2000; (3) Adper Prompt L-Pop/Z100; and (4) Adper PLP/F2000. All specimens were immersed in distilled water for 3 months and ten specimens of each group were immersed and vibrated in XeroLacer for 2 min three times a day. The specimens were dyed with 1% methylene blue for 24 h. Longitudinal sections were made and percentages of microleakage were determined by image analysis. In distilled water, microleakage with the Adper Scotchbond 1XT/F2000 combination was significantly greater than with Adper Scotchbond 1XT/Z100 or Adper Prompt L-Pop/Z100, and microleakage with Adper Prompt L-Pop/F2000 was significantly greater than that with Adper Prompt L-Pop/Z100. No significant differences were detected among the groups exposed to XeroLacer. However microleakage was significantly less with Adper Scotchbond 1XT/F2000 after exposure to XeroLacer than after immersion in distilled water only. In conclusion, exposure to XeroLacer decreased microleakage into cavities restored with the compomer.
authors.affiliation: Orthodontic Teaching Unit, Dental Clinic, The University of Murcia, Hospital Morales Meseguer, 2a planta C/Marqués de los Vélez, s/n, 30008, Murcia, Spain.
authors.forename: Ascensión
authors.initials: A
authors.lastname: Vicente
authors.affiliation: Integral Pediatric Dentistry Teaching Unit, Dental Clinic, The University of Murcia, Murcia, Spain. ajortiz@um.es.
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Ortiz
authors.affiliation: Conservative Dentistry Teaching Unit, Dental Clinic, The University of Murcia, Murcia, Spain.
authors.forename: Pablo L
authors.initials: PL
authors.lastname: Parra
authors.affiliation: Integral Adult Dentistry Teaching Unit, Dental Clinic, The University of Murcia, Murcia, Spain.
authors.forename: José L
authors.initials: JL
authors.lastname: Calvo
authors.affiliation: Conservative Dentistry Teaching Unit, Dental Clinic, The University of Murcia, Murcia, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Chiva
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D000818:Animals; D002417:Cattle; D020770:Compomers; D003188:Composite Resins; D001840:Dental Bonding / Q000379:methods; D003763:Dental Leakage / Q000209:etiology / Q000517:prevention & control*; D003793:Dental Restoration, Permanent / Q000009:adverse effects / Q000145:classification / Q000379:methods*; D005079:Excipients / Q000494:pharmacology* / Q000627:therapeutic use; D008422:Materials Testing; D011897:Random Allocation; D012463:Saliva / Q000378:metabolism; D013268:Stimulation, Chemical; D014987:Xerostomia / Q000188:drug therapy*
chemical_list: D020770:Compomers; D003188:Composite Resins; D005079:Excipients