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Chinese Journal of Stomatological Research(Electronic Edition) ›› 2021, Vol. 15 ›› Issue (05): 314-319. doi: 10.3877/cma.j.issn.1674-1366.2021.05.011

• Review • Previous Articles     Next Articles

Research progress of bulk-fill resin composites in microleakage

Ling Ren1, Weizhen Liu1, Xiaoting Wang2, Lina Shao2,()   

  1. 1. School of Stomatology, China Medical University, Shenyang 110002, China
    2. Department of Endodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
  • Received:2020-12-02 Online:2021-10-01 Published:2021-11-12
  • Contact: Lina Shao
  • Supported by:
    Natural Science Foundation of Liaoning Province(2020-BS-111); Innovation and Entrepreneurship Training Program for College Students of China Medical University(x202010159200)

Abstract:

Microleakage between the filling material and the tooth interface is considered as the most important risk factor responsible for the failure of the restoration. Bulk-fill resin composites (BFRCs) are widely used in the treatment of dental caries because they have the ability to build up increments in single filling, reduce polymerization shrinkage and increase fracture resistance of treated teeth. In this paper, the related research progress on microleakage of BFRCs is reviewed, and the classification and performance characteristics of BFRCs are summarized. The capability of BFRCs and traditional resin against microleakage in filling different types of cavities is compared. The causes of the differences of microleakage in using different kinds of BFRCs are discussed, and the factors causing microleakage are generalized in order to provide better choices for clinical treatment.

Key words: Composite resins, Polymerization, Shrinkage, Viscosity, Microleakage

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