title: Influence of acid type (phosphoric or maleic) on the retention of pit and fissure sealant: an in vivo study.
abstract: Two hundred twenty permanent young molars in 60 children aged 8 to 13 years received only one application of a light-activated resinous sealant. The retention rate was assessed 6 and 12 months later. The teeth were divided into 2 groups of 110 each. In one of the groups the pits and fissures were etched with 37% phosphoric acid before being sealed (group 1); in the other (group 2) these areas were etched with 10% maleic acid. The retention rate of group 1 was 98.4% at 6 months, and 96.8% at 12 months. Group 2 had retention rates of 97.5% at 6 months and 95% at 12 months. There was no statistically significant difference between the two groups in the two test periods, nor were there differences in the same group at the different periods.
authors.affiliation: Department of Operative Dentistry, Federal University of Santa Catarina, School of Dentistry, Brazil.
authors.forename: L N
authors.initials: LN
authors.lastname: Baratieri
authors.forename: S
authors.initials: S
authors.lastname: Monteiro Júnior
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D000293:Adolescent; D016009:Chi-Square Distribution; D002648:Child; D005500:Follow-Up Studies; D006801:Humans; D008298:Maleates; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants; D016896:Treatment Outcome
chemical_list: D008298:Maleates; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants; C030272:maleic acid; C030242:phosphoric acid