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At least 55 records · Page 3Linked to original sources
PubMed1978

Tissue formation in the root canal after total pulpectomy and partial root filling.

In twenty human teeth, total removal of the pulp was attempted, and the root canal was filled 2 to 4 mm. short of the foramen in the same sitting. The root filling consisted of gutta-percha points and Kloroperka N-ö as a sealer. The teeth were extracted after observation periods of 2, 6, and 10 months and committed to histologic examination. Microscopic evaluation demonstrated that after 2 months, the space in the canal between the root filling and the foramen was occupied by connective tissue slightly inflamed in the area adjacent to the root filling. After 6 and 10 months the entire space contained a fully developed cell-rich fibrous tissue, and only a few lymphocytes were observed adjacent to the root filling material.

Adult↗
PubMed1980

Pulpectomy: immediate root canal filling with calcium hydroxide. Concept and procedures.

From the clinical aspect the endodontic treatment is divided into two groups: (1) teeth with pulp vitality (biopulpectomy) and (2) pulpless teeth (necropulpectomy). The authors point out the necessity of knowing the clinical pathologic conditions and the macroscopic aspect of the dental pulp before endodontic treatment. They describe the clinical procedures that must be performed in cases when the tooth presents pulp vitality (biopulpectomy), emphasizing (1) the necessity of a field of operation in an aseptic condition; (2) the necessity of a noninjuring instrumentation; (3) the use of cytophylactic substances and not cytotoxic substances; and (4) the use of a root canal--filling technique that respects the limits of the pulp stump, employing calcium hydroxide, a substance that maintains its vitality and induces and accelerates the apical closure by hard-tissue deposition.

Calcium Hydroxide↗
PubMed1996

Steroids reduce the periapical inflammatory and neural changes after pulpectomy.

Root canal treatment, including obturation with gutta-percha and a zinc oxide and eugenol sealer, was conducted, under general anesthesia, on the canine teeth of 12 young ferrets. Six of the ferrets were given 0.5 mg/kg dexamethasone daily. Three months after the root canal treatment, under general anesthesia, the animals were perfused with fixative and the canine periapical tissues prepared for histological examination. The extent of periapical inflammation was measured and the degree of neural sprouting in the periodontal and subapical regions estimated. Periapical lesions in steroid-treated animals were 30% of the size of those in untreated animals. Innervation density in the subapical region of the steroid-treated animals was lower than that in the animals who did not receive steroids and not significantly different from controls. Reduction in periapical inflammation induced by systemic steroids is accompanied by a reduction in neural sprouting.

Animals↗