Assessment of composite leakage using optical coherence tomography: A systematic review

Background Leakage under dental restorations is problematic because it allows bacterial percolation and can cause a failure of dental restorations. Assessing microleakage and nanoleakage is one of the main topics of research regarding operative dentistry. Objective This review compares the assessment methods of composite leakage using optical coherence tomography. Results Optical coherence tomography (OCT) is useful in evaluating the internal adaptation of composite resin restoration and in quantifying resin–dentin interfacial gaps. The sealing performance of resin cementation before and after thermal cycling and monitoring of cariogenic demineralization at the enamel–composite interface was also attempted. OCT is still uncommon ...