CONTROVERSIES IN ENDODONTICS
G. Bergenholtz*
Department of Endodontology and Oral Diagnosis, Faculty of Odontology, The Sahlgrenska Academy at Göteborg University, Box 40530, Göteborg, Sweden;
L. Spångberg
Department of Endodontology, School of Dental Medicine, University of Connecticut, Farmington, Connecticut, USA
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Figure 1. Graphic representation of the findings in the study by Hörsted et al. (1985). While the overall rate of pulpal survival was high, there was a decline over time. Bars indicate 95% confidence intervals.
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Figure 2. Tissue specimen demonstrating hard tissue repair in the apical portion of a root canal subsequent to pulpectomy and dressing with calcium hydroxide to close off residual non-inflamed pulp tissue (A). Also note extension of pulp tissue into a lateral canal (B). From Engström and Spångberg (1967).
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Figure 3. Tissue specimen of an extracted tooth with inflammatory tissue attached to the root tip. Extensive apical root resorption has destroyed original apical canal configuration. Courtesy of Dr. D. Ricucci.
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