1. Correlation of positive cultures with the prognosis for root canal therapy;Engstrom;Odontol Revy,1964
2. Endodontic failures: a analysis based on clinical, roentgenographic, and histologic findings;Seltzer;Oral Surg,1967
3. The dependence of the results of pulp therapy on certain factors;Strindberg;Acta Odontol Scand,1956
4. Periodontal tissue reactions after root perforations in dog's teeth. A histologic study;Lantz;Odontol Tidsk,1967
5. The histopathogenesis of vertical root fractures;Walton;J Endodon,1984