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2010

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by-nc (c) Léa Assed Bezerra da Silva et al., 2010
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/21693

Histopathological evaluation of root canal filling materials for primary teeth

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http://dx.doi.org/10.1590/S0103-64402010000100006

Abstract

This study aimed to assess the response of apical and periapical tissues of dogs¿ teeth after root canal filling with different materials. Forty roots from dogs¿ premolars were prepared biomechanically and assigned to 4 groups filled with: Group I: commercial calcium hydroxide and polyethylene glycol-based paste (Calen®) thickened with zinc oxide; Group II: paste composed of iodoform, Rifocort® and camphorated amonochlorophenol; Group III: zinc oxide-eugenol cement; Group IV: sterile saline. After 30 days, the samples were subjected to histological processing. The histopathological findings revealed that in Groups I and IV the apical and periapical regions exhibited normal appearance, with large number of fibers and cells and no resorption of mineralized tissues. In Group II, mild inflammatory infiltrate and mild edema were observed, with discrete fibrogenesis and bone resorption. Group III showed altered periapical region and thickened periodontal ligament with presence of inflammatory cells and edema. It may be concluded that the Calen paste thickened with zinc oxide yielded the best tissue response, being the most indicated material for root canal filling of primary teeth with pulp vitality.

Subject

Materials dentals, Endodòncia, Odontologia

Subject (English)

Dental materials, Endodontics, Dentistry

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Articles publicats en revistes (Odontoestomatologia)

Citation

SILVA, Léa Assed Bezerra da, et al. Histopathological evaluation of root canal filling materials for primary teeth. Brazilian Dental Journal. 2010. Vol. 21, num. 1, pags. 38-45. ISSN 0103-6440. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/21693

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