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Chinese Journal of Stomatological Research(Electronic Edition) ›› 2010, Vol. 4 ›› Issue (06): 540-547. doi: 10.3877/cma.j.issn.1674-1366.2010.06.002

• Original Articles • Previous Articles     Next Articles

Research on the synthesis and biocompatibility of the low-shrinkage resin root canal sealer

Jun-yan FANG1, Zheng-mei LIN1, Jun-qi LING1,(), Jing-wei HE1, Fang LIU1, Yuan-fang LUO1   

  1. 1.Department of Stomatology,Huantai Branch,Qilu Hospital of Shandong University,Zibo 256400,China
  • Received:2010-04-12 Online:2010-12-01 Published:2025-02-25
  • Contact: Jun-qi LING

Abstract:

Objective

The aims of this study were to synthesize the low-shrinkage resin root canal sealer (LSRCS) based on the new monomer of bisphenol A glycidyl methacrylate and to evaluate the biocompatibility.

Methods

LSRCS was created by mixing organic monomer with special ratio and inorganic filler.The ratio and quantity of the inorganic filler were screened by the conversion, polymerization shrinkage, flow and solubility of the sealer.The biocompatibility was evaluated by the ISO 10993 of cytotoxicity, hemolysis assay, acute systemic toxicity and Guinea Pig Maximization Test.

Results

We synthesized the LSRCS with the inorganic ration of BaSO4 ∶ZnO ∶HA equaling 9 ∶3 ∶2 and quantity percent of 50%.The cytotoxicity order of the three sealer was Epiphany>LSRCS>AH Plus.The KM mouse had no sharp difference between the experiment group and the control group in weight, activity, respiration and histopathologic appearance.The hemolysis ratio of LSRCS was 0.20% and no edema or erythema emerged on the experimental group in GPMT.

Conclusions

The new developed LSRCS has good biocompatibility.

Key words: Bisphenol A glycidyl methacrylate, Biocompatibility, Cytotoxicity, Root canal sealer, MTT, Hemolysis test, Guinea Pig Maximization Test

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