Microleakage of temporary filling materials used in endodontics

Introduction: Pulpal and periodontal diseases often require multi-visit endodontic treatment, which necessitates the sealing of cavities with temporary filling materials. The main problem is the possible microleakage and further failure of the treatment. Aim: The aim of this research is to provide an overview of the problem with microleakage of temporary filling materials. Materials and Methods: Studies and articles published by foreign and Bulgarian authors are reviewed in order to present the different types of temporary filling materials, the mechanism of microleakage, different methods of its detection, and the extent of microleakage by different types of temporary filling materials. Results: Different types of temporary filling materials show different levels of microleakage. Conclusion: Microleakage can cause failure of the endodontic treatment. That is why, between the visits, an adequate temporary seal is needed.