2Richardson D W, Cardner L K, Lefevbre C A. Restoration of severely fractured teeth using a flexibe facial matrix [ J ]. Oper Dent,1991,16( 1 ) :29-30.
3Saad A Y. Endodontic therapy of traumatized incisors with crown and transe verse intra-alveolar root fractrues [ J ]. Oral Surg Oral Med Oral Pathol, 1991,72 (4) :468-472.
5Ray H A. Trope M. Periapical status of endodontically treated teeth in relation to the technical quality of root filling and the coronal resoration[ J]. Int Endod J, 1995,28( 1 ) :12-18.
2Diangelis A J, Jungbluth M. Reattaching fractured tooth segments: an esthetic alternative [ J ]. J Am Dent Assoc, 1992,123(8) :58-63.
3Bajalcaliev J G, Kaminski E J, Osetek E M, et al. The response tointracanal placement of synthetic hydroxyapatite or freeze driedbone in vertically fractured dog teeth [ J]. Northwest Dent Res, 1991,3(1 ):20-22.
