title: A Two-Year Clinical Evaluation of Fluoride and Non-Fluoride Resin-Based Pit-and-Fissure Sealants.
abstract: The aim of this study was to evaluate and compare for 24 months, the retention and surface characteristics of two pit-and-fissure sealants: Helioseal Clear and Helioseal F (Ivoclar Vivadent). The correlation between the different stages of eruption and sealant retention was also verified. Fifty children aged 6 to 8 years participated in the study, totalizing 153 teeth divided into two groups: HC (Helioseal Clear) and HF (Helioseal F). After 6, 12, 18 and 24 months, a clinical examination was performed by previously calibrated examiners. The surface characteristics and the retention of the sealants (modified RYGE & SNYDER criteria) were assessed. Analyzing the occlusal surface, HC exhibited a statistically significant higher retention at 12 (p=0.0345) and 24 months (p=0.0076). Concerning the surface characteristics, only the superficial discoloration of HC was smaller than HF, during the entire studied period. For all the other characteristics, the results of the Mann-Whitney test were highly significant at different periods (p=0.0000 to 0.0421). The frequency of air bubbles within the sealant surfaces, determined by Chi-square test, was significantly higher in HF (p=0.000:12 and 18 months to p=0.002: 6 and 24 months). HC sealant material exhibited the best performance regarding the retention and surface characteristics on the occlusal surface.
authors.affiliation: Pediatric Dentistry Sector, Hospital for Rehabilitation of Craniofacial Anomalies, USP - Universidade de São Paulo, Bauru, SP, Brazil.
authors.forename: Tatiana Yuriko
authors.initials: TY
authors.lastname: Kobayashi
authors.affiliation: Department of Pediatric Dentistry, Orthodontics and Public Health, Dental School of Bauru, USP - Universidade de São Paulo, Bauru, SP, Brazil.
authors.forename: Daniela
authors.initials: D
authors.lastname: Rios
authors.affiliation: Department of Pediatric Dentistry, Orthodontics and Public Health, Dental School of Bauru, USP - Universidade de São Paulo, Bauru, SP, Brazil.
authors.forename: Maria Aparecida de Andrade Moreira
authors.initials: MA
authors.lastname: Machado
authors.affiliation: Department of Pediatric Dentistry, Orthodontics and Public Health, Dental School of Bauru, USP - Universidade de São Paulo, Bauru, SP, Brazil.
authors.forename: Thais Marchini
authors.initials: TM
authors.lastname: Oliveira
authors.affiliation: Department of Pediatric Dentistry, Orthodontics and Public Health, Dental School of Bauru, USP - Universidade de São Paulo, Bauru, SP, Brazil.
authors.forename: Salete Moura Bonifácio
authors.initials: SM
authors.lastname: Da Silva
mesh_terms: D002648:Child; D005260:Female; D005459:Fluorides / Q000008:administration & dosage*; D006801:Humans; D008297:Male; D010895:Pit and Fissure Sealants; D012117:Resins, Synthetic
chemical_list: D010895:Pit and Fissure Sealants; D012117:Resins, Synthetic; D005459:Fluorides