Effect of 5% sodium hypochlorite or Tubulicid pretreatment in vivo on the marginal adaptation of dental adhesives and glass ionomer cements

The effect of pretreatment of dentin with a 5% sodium hypochlorite solution (NaOCl) or Tubulicid on the marginal adaptation of a glass ionomer cement (FUJI), a glass ionomer cement reinforced with silver particles (Ketac Silver) and 3 dentin adhesives (Clearfil, Dentin Bonding Agent and Scotch Bond) was tested in vivo. After a one month experimental period, the formation of gaps was measured from SEM photomicrographs. The sodium hypochlorite pretreated glass ionomer cement fillings showed gapfree margins, while the Tubulicid pretreated ones showed locally small gaps. When the 3 resinous dentin adhesives were used gaps were observed over the whole length of the dentinal margin with both techniques of pretreatment.