A 12-month clinical evaluation of pit-and-fissure sealants placed with and without etch-and-rinse and self-etch adhesive systems in newly-erupted teeth

OBJECTIVES: The objective of this one-year clinical study was to investigate the effect of two adhesive systems (Adper Single Bond, a two-step etch-and-rinse and Clearfil SE Bond, a two-step self-etch system) on pit-and-fissure sealant retention in newly-erupted teeth. This study compared the success of the sealants in mesial and distopalatal grooves with and without these two adhesive systems. MATERIAL AND METHODS: In a clinical trial, 35 children aged 6-8 years undergoing sealant placement were recruited. This one-year clinical study scored 70 mesial and 70 distopalatal sealants of newly-erupted permanent maxillary first molar, with a split-mouth design. All children received sealant alone in one permanent maxillary molar tooth. Children were randomized into two groups. One group received Self-etch (Se) bond plus sealant and the other group received Single Bond plus sealant in another permanent maxillary molar tooth. Clinical evaluation at 3, 6 and 12 months was performed and the retention was studied in terms of the success and failure. RESULTS: The success rate of sealant in the distopalatal groove, using SeB at 3, 6 and 12 months was 93.3% (95% CI: 68.0, 99.8), 73.3% (95% CI: 44.9, 92.2) and 66.7% (95% CI: 38.4, 88.2), respectively. It was greater than that of the distopalatal groove in SB group with a success rate of 62.5% (95% CI: 35.4, 84.8), 31.3% (95% CI: 11.8, 58.7) and 31.3% (95% CI: 11.8, 58.7), at the three evaluation periods. The success rate of sealant in the mesial groove using SeB was 86.6% (95% CI: 59.5, 98.3), 53.3% (95% CI: 26.6, 78.7) and 53.3% (95% CI: 26.6, 78.7), while this was 100% (95% CI: 79.4, 100.0), 81.3% (95% CI: 54.4, 96.0) and 81.3% (95% CI: 54.4, 96.0) using SB, at 3, 6 and 12-month evaluation periods. CONCLUSIONS: These results support the use of these two bonding agents in pit-and-fissure sealants under both isolated and contaminated conditions. Further, Se bond seemed to be less sensitive to moisture contamination.

Comprobación clínica del efecto preventivo de caries de los enjuagues bucales con la solución mineralizante sobre la dentición permanente recién brotada / Clinical verification of caries preventing effect of oral rinsing with mineralizing solution on recently erupted permanent dentition

Se estudia el efecto de los enjuagues bucales quincenales con la solución mineralizante (Minersol) sobre la dentición permanente recién brotada. La reducción obtenida en la incidencia de caries en el término de 1 año estuvo en el rango entre 49,2 y 82,1% para los primeros molares, y en el rango entre 23,4 y 36,3% para los segundos molares; ambas diferencias fueron significativas, pero no se obtuvo reducción alguna en la incidencia de caries de las bicúspides. El efecto preventivo obtenido se atribuye a la incorporación iónica en los planos superficiales del esmalte, que reduce la difusiòn de los ácidos que actúan en la desmineralización. Se concluye que el empleo de la solución mineralizante en las edades de brote de la dentición permanente reduce la incidencia de caries y se recomienda, por tanto, su utilización como mètodo preventivo