Abstract
Clinical trials are normally performed with well-known brands of glass ionomer cement (GIC), but the cost of these materials is high for public healthcare in less-affluent communities. Given the need to research cheaper materials, it seems pertinent to investigate the retention rate of a low-cost GIC applied as atraumatic restorative treatment (ART) sealants in two centers in Brazil. Four hundred and thirty-seven 6-to-8-year-old schoolchildren were selected in two cities in Brazil. The children were randomly divided into two groups, according to the tested GIC applied in the first permanent molars. The retention rate was evaluated after 3, 6 and 12 months. Kaplan-Meier survival analysis and the log-rank test were performed. The variables were tested for association with sealant longevity, using logistic regression analyses (α = 5%). The retention rate of sealants after 12 months was 19.1%. The high-cost GIC brand presented a 2-fold-more-likely-to-survive rate than the low-cost brand (p < 0.001). Significant difference was also found between the cities where the treatments were performed, in that Barueri presented a higher sealant survival rate than Recife (p < 0.001). The retention rate of a low-cost GIC sealant brand was markedly lower than that of a well-known GIC sealant brand.
Highlights
Atraumatic Restorative Treatment (ART) is a preventive and restorative approach to managing dental caries
Of the 437 selected children who participated in the study, 229 (52.4%) were male
Had molars sealed with Maxxion R, and 236 (54%), with Fuji IX; and 216 (49.4%) were on the right side, and 221 (50.6%), on the left side
Summary
Atraumatic Restorative Treatment (ART) is a preventive and restorative approach to managing dental caries. It includes sealing caries-prone pits and fissures,[1] and excavating cavitated dentine caries with hand instruments, and restoring the cavity.[2,3] This approach was introduced to provide dental care to less-affluent populations, making caries management possible in dental offices, and in outreach situations.[4] In addition to using ART in cavitated lesion management, the sealing of incipient enamel lesions seems beneficial, since occlusal surfaces with unsealed enamel-restricted lesions are four times more likely to develop into a dentin lesion than those sealed after 3 years of assessment.[2]. High-viscous GICs were specially developed for ART and have the main advantage of improved mechanical properties, resulting in
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