1. Cognitive dissonance in endodontics;Seltzer;Oral Surg,1965
2. The apical seal via the retrograde approach;Abdal;Oral Surg,1982
3. The apical seal of selected retrograde filling materials;Palaniak;J Can Dent Assoc,1984
4. A comparison of the marginal adaptation of retrograde techniques;Tanzilli;Oral Surg,1980
5. Comparison of silver amalgam, glass ionomer cement and gutta-percha as retrofilling materials, an in vivo and in vitro study;Dalal;J Indian Dent,1983