Surface softening of temporary cements after contact with endodontic medicaments

Marginal sealing quality of IRM and Cavit as assessed by microbial penetration

“…This relationship was significant at the p<O.O1 level at 2 weeks for Cavit and at the p<0.03 level at 3 weeks for IRM. Since Cavit is not softened by CMCP but IRM is, 9 it appears that the softening of the material during set is not the responsible factor. More likely what causes the decreased leakage is the residual medication which penetrates the temporary during set.…”

Temporization for endodontics

“…1981). These findings are of special interest knowing that CMCP significantly reduced the surface hardness of IRM whilst it did not influence the hardness of Cavit (Olmsted et al . 1977).…”

“…1975, Oppenheimer & Rosenberg 1979). When left in contact with metacresylacetate, camphorated mono‐chlorophenol (CMCP) and formocresol intracanal medicaments for 1 and 7 days, the surface hardness of Cavit did not differ significantly to the material left in contact with saline (Olmsted et al . 1977).…”