Morphology of the smear layer after the application of simplified self-etch adhesives on enamel and dentin surfaces created with different preparation methods
Bortolotto, Tissiana; Ferrari, Marco; Susin, AH; Krejci, I
Título
Morphology of the smear layer after the application of simplified self-etch adhesives on enamel and dentin surfaces created with different preparation methods
Resumen
Mild self-etching adhesive systems modify and/or incorporate the smear layer into the resin-infiltrated demineralised dentin. Some factors such as type of bur and use of water spray might affect the thickness of the smear layer on substrates, enamel and dentin. Because of this, the present study evaluated the thickness of smear layers created by different finishing procedures, after the application of three simplified self-etching primers (Adper Prompt L-Pop and two experimental formulations) on enamel and dentin. After the application and removal of the primers' resinous component, the specimens were prepared for examination under a scanning electron microscope. Smear layers were thicker on enamel than on dentin, irrespective of the finishing methods used. Therefore, different thicknesses of smear layer on enamel/dentin might be an important factor to consider when evaluating the bonding efficacy of self-etching adhesives to both tooth substrates. (AU)
Descriptores DECS
ESTUDIO COMPARATIVO; ENSAYO CLINICO CONTROLADO ALEATORIO; ESMALTE DENTAL^sUltraestructura; DENTINA^sUltraestructura; DIAMANTE^sQuímica; CEMENTOS DE IONOMERO VITREO^sQuímica; CONCENTRACION DE IONES DE HIDROGENO; ENSAYO DE MATERIALES; METACRILATOS^sQuímica; MICROSCOPIA ELECTRONICA DE RASTREO; POLIURETANOS^sQuímica; CEMENTOS DE RESINA^sQuímica; CAPA DE BARRO DENTINARIO; PROPIEDADES DE SUPERFICIE; PREPARACION DEL DIENTE^sInstrumentación; PREPARACION DEL DIENTE^sMétodos; TUNGSTENO^sQuímica; AGUA^sQuímica; CEMENTOS DE IONOMERO VITREO; ENSAYO CLINICO CONTROLADO ALEATORIO; ESMALTE DENTAL^sUltraestructura; DENTINA^sUltraestructura; DIAMANTE^sQuímica; CEMENTOS DE IONOMERO VITREO^sQuímica; CONCENTRACION DE IONES DE HIDROGENO; ENSAYO DE MATERIALES; METACRILATOS^sQuímica; MICROSCOPIA ELECTRONICA DE RASTREO; POLIURETANOS^sQuímica; CEMENTOS DE RESINA^sQuímica; CAPA DE BARRO DENTINARIO; PROPIEDADES DE SUPERFICIE; PREPARACION DEL DIENTE^sInstrumentación; PREPARACION DEL DIENTE^sMétodos; TUNGSTENO^sQuímica
