Systemic distribution of sup 14 C-labeled formaldehyde applied in the root canal following pulpectomy

Journal Article · Wed Nov 01 00:00:00 EST 1989 · Journal of Endodontics; (USA)

DOI:https://doi.org/10.1016/S0099-2399(89)80197-9· OSTI ID:6867649

Hata, G I; Nishikawa, I; Kawazoe, S; Toda, T

The systemic distribution of {sup 14}C-labeled formaldehyde which had been placed in the root canals of the canines of cats following pulpectomies was studied using liquid scintillation counting and whole-body autoradiographic technique. Radioactive {sup 14}C which had been placed in the canals was found in the plasma 30 min after the root canal procedure. The recovery of systemic {sup 14}C radioactivity increased with time. In addition, it seemed that approximately 3% of the dose placed in the teeth was excreted in the urine within 36 h. Whole-body autoradiograms indicated extensive concentration of {sup 14}C radioactivity in tissues other than those analyzed with the liquid scintillation technique.

• OSTI ID: 6867649
• Journal Information: Journal of Endodontics; (USA), Vol. 15:11; ISSN 0099-2399
• Country of Publication: United States
• Language: English

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