formocresol and Smear-Layer

formocresol has been researched along with Smear-Layer* in 2 studies

Other Studies

2 other study(ies) available for formocresol and Smear-Layer

Article	Year
The effects of intracanal medicaments, fillers, and sealers on the attachment of human gingival fibroblasts to an exposed dentin surface free of a smear layer. Journal of periodontology, 1995, Volume: 66, Issue:7 To date there has been very little research into the possible effects of endodontic therapy on regeneration of the lost periodontal attachment. The objective of this study was to examine the effects of endodontic medicaments on fibroblast attachment to dentin surfaces free of a smear layer. Pulp chambers of extracted third molars were filled with one of the following medicaments: gutta-percha with Roth's zinc oxide and eugenol-based sealer, warm gutta-percha with sealer, warm gutta-percha without sealer, calcium hydroxide, formocresol, cotton pellet, or left empty. A predetermined dentin surface area was then inoculated with human gingival fibroblasts at a concentration of 2 x 10(4) cells per ml. The cells were allowed to adhere to the dentin surface for either 4 or 24 hours, then cell attachment was quantified using a methyl-tetrazolium assay. The data were analyzed using a Kruskal-Wallis one-way analysis of variance and Dunn's multiple comparison test. It was determined that fibroblast attachment was significantly reduced when exposed to formocresol or warm gutta-percha without sealer at both the 4 and 24 hour interval (P < or = 0.05). This suggests that the use of formocresol or warm gutta-percha without sealer in a root canal may impede periodontal wound healing and regeneration. Topics: Analysis of Variance; Calcium Hydroxide; Cell Adhesion; Cell Count; Cell Division; Cells, Cultured; Dental Pulp Cavity; Dentin; Fibroblasts; Formocresols; Gingiva; Gossypium; Gutta-Percha; Humans; Indicators and Reagents; Molar, Third; Regeneration; Root Canal Filling Materials; Root Canal Irrigants; Smear Layer; Tetrazolium Salts; Time Factors; Zinc Oxide-Eugenol Cement	1995
Diffusion of medicaments within root canal dentin. A scanning electron microscopic study. Oral surgery, oral medicine, and oral pathology, 1991, Volume: 72, Issue:3 Root canals of 21 maxillary human teeth were enlarged with reamers and flushed alternatively with sodium hypochlorite and hydrogen peroxide. After its mechanical preparation, root canals were dressed with camphorated paramonochloropherol and/or formocresol delivered by paper points. All three medicaments crystallize both on dentin walls and inside dentinal tubules. The clinical implications of these findings are discussed. Topics: Adult; Cresols; Dental Pulp Cavity; Dentin; Dentin Permeability; Diffusion; Disinfectants; Formocresols; Humans; Microscopy, Electron, Scanning; Middle Aged; Phenol; Phenols; Root Canal Irrigants; Smear Layer	1991

Article

Year

The effects of intracanal medicaments, fillers, and sealers on the attachment of human gingival fibroblasts to an exposed dentin surface free of a smear layer.

Journal of periodontology, 1995, Volume: 66, Issue:7

To date there has been very little research into the possible effects of endodontic therapy on regeneration of the lost periodontal attachment. The objective of this study was to examine the effects of endodontic medicaments on fibroblast attachment to dentin surfaces free of a smear layer. Pulp chambers of extracted third molars were filled with one of the following medicaments: gutta-percha with Roth's zinc oxide and eugenol-based sealer, warm gutta-percha with sealer, warm gutta-percha without sealer, calcium hydroxide, formocresol, cotton pellet, or left empty. A predetermined dentin surface area was then inoculated with human gingival fibroblasts at a concentration of 2 x 10(4) cells per ml. The cells were allowed to adhere to the dentin surface for either 4 or 24 hours, then cell attachment was quantified using a methyl-tetrazolium assay. The data were analyzed using a Kruskal-Wallis one-way analysis of variance and Dunn's multiple comparison test. It was determined that fibroblast attachment was significantly reduced when exposed to formocresol or warm gutta-percha without sealer at both the 4 and 24 hour interval (P < or = 0.05). This suggests that the use of formocresol or warm gutta-percha without sealer in a root canal may impede periodontal wound healing and regeneration.

Topics: Analysis of Variance; Calcium Hydroxide; Cell Adhesion; Cell Count; Cell Division; Cells, Cultured; Dental Pulp Cavity; Dentin; Fibroblasts; Formocresols; Gingiva; Gossypium; Gutta-Percha; Humans; Indicators and Reagents; Molar, Third; Regeneration; Root Canal Filling Materials; Root Canal Irrigants; Smear Layer; Tetrazolium Salts; Time Factors; Zinc Oxide-Eugenol Cement

1995

Diffusion of medicaments within root canal dentin. A scanning electron microscopic study.

Oral surgery, oral medicine, and oral pathology, 1991, Volume: 72, Issue:3

Root canals of 21 maxillary human teeth were enlarged with reamers and flushed alternatively with sodium hypochlorite and hydrogen peroxide. After its mechanical preparation, root canals were dressed with camphorated paramonochloropherol and/or formocresol delivered by paper points. All three medicaments crystallize both on dentin walls and inside dentinal tubules. The clinical implications of these findings are discussed.

Topics: Adult; Cresols; Dental Pulp Cavity; Dentin; Dentin Permeability; Diffusion; Disinfectants; Formocresols; Humans; Microscopy, Electron, Scanning; Middle Aged; Phenol; Phenols; Root Canal Irrigants; Smear Layer

1991