Background: Provisional restorations have been demonstrated to function as an important component in the majority of the various dental disciplines. The present study assessed marginal leakage of provisional restorative materials luted with cements. Materials & Methods: Provisional crowns were fabricated and divided into two groups. In Group I, provisional crowns were fabricated by SC 10 (PMMA resin) and in group II, provisional crowns were fabricated by Protemp 4 (BIS GMA composite resin). The provisional crown samples were further subgrouped according to different luting cements used viz. Kalzinol (Samit) (zinc oxide and eugenol [ZOC], rely temp NE [zinc oxide and poly organic acid] and HY bond [zinc oxide and polycarboxylate]). Results: Grade 0 microleakage was seen I 3 in group I and 10 in group II, grade 1 in 2 in group I and 12 in group II, grade 3 in 6 in group I and 5 in group II, grade 4 in 4 in group I and 1 in group II. The difference was significant (P< 0.05). The mean microleakage was 3.1, 2.4 and 1.1 in subgroups in group I and 1.4, 1.3 and 0.4 in subgroups in group II. The difference was significant (P< 0.05). Conclusion: Authors found that SC‑10 crowns showed more microleakage compared to Protemp 4 crowns. SC‑10 crowns cemented with Kalzinol showed maximum microleakage and Protemp 4 crowns cemented with HY bond showed least microleakage. Key words: Microleakage, Kalzinol, Protemp