1. Endodontics;Ingle,1983
2. Hermetic sealing of root canals; value in successful endodontics;Allen;Dent Rad Photo,1964
3. Comparison of coronal microleakage in endodontically treated teeth obturated with gutta percha and various sealers;Madison;J Dent Res,1986
4. Retreatment of endodontic fillings;Bergenholtz;Scand J Dent Res,1979
5. Influence of apical overinstrumentation and overfilling on retreated root canals;Bergenholtz;J Endodon,1979