2Hayashi M, Kinomoto Y, Miura Met al. Short - term evaluation of intentional replantation of vertically fractured roots reconstructed with dentin - bonded resin. [ J ]. Journal of Endodontics, 2002,28 (2) :120 - 124.
3Unver S, Onay EO, Ungor Met al. Intentional re - plantation of a vertically fractured tooth repaired with an adhesive resin. [ J]. Inter- national endodontic journal ,2011,44 ( 11 ) : 1069 - 1078.
4Gerek,M. ,Ba? er,E. D. ,Kayahan,M. B. et al. Comparison of the force required to fracture roots vertically after ultrasonic and Masserann removal of broken instruments [ J ]. International endo- dontic journal,2012,45 (5) :429 - 434.