Objective:To investigate the possibility and methods to build the root resorption animal model in the miniature pigs.Methods:Chinese experimental miniature pigs were provided by Chinese Agricultural Scientific Institute.One side lower incisors of all pigs were pulled posterior by NiTi spring,and other side teeth served as control group.Results:Root resorption was found by the naked eyes,pathology and ESM.Conclusion:Chinese miniature pigs can be used to establish the root resorption model,which is stable and...