Effect of smear layer removal on the diffusion permeability of human roots

David A. Galvan, Alfred E. Ciarlone, David Henry Pashley, James C. Kulild, Patrice D. Primack, Mark D. Simpson

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Ten human maxillary incisors, extracted because of periodontal disease or nonrestorable caries, were obtained and instrumented to a size #70 K-Flex file at the working length using a standard stepback technique. Tritiated water (3H2O) was placed in the root canals and allowed to diffuse to the external surface of the roots until it reached a constant rate. The smear layer in each of the experimental roots was then removed using 0.5 M EDTA followed by 5.25% sodium hypochlorite (NaOCI). The constant rate diffusion of 3H2O was remeasured. The roots were then stored in deionized H2O for 2 months and the constant rate diffusion of 3H2O was remeasured. A statistically significant difference was noted between all three groups. A decrease in the diffusion permeability of the root to 3H2O was noted immediately after smear layer removal and the highest permeability was recorded after storage in the deionized water for 2 months.

Original languageEnglish (US)
Pages (from-to)83-86
Number of pages4
JournalJournal of Endodontics
Volume20
Issue number2
DOIs
StatePublished - Jan 1 1994

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Smear Layer
Permeability
Sodium Hypochlorite
Water
Dental Pulp Cavity
Periodontal Diseases
Incisor
Edetic Acid

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Galvan, D. A., Ciarlone, A. E., Pashley, D. H., Kulild, J. C., Primack, P. D., & Simpson, M. D. (1994). Effect of smear layer removal on the diffusion permeability of human roots. Journal of Endodontics, 20(2), 83-86. https://doi.org/10.1016/S0099-2399(06)81187-8

Effect of smear layer removal on the diffusion permeability of human roots. / Galvan, David A.; Ciarlone, Alfred E.; Pashley, David Henry; Kulild, James C.; Primack, Patrice D.; Simpson, Mark D.

In: Journal of Endodontics, Vol. 20, No. 2, 01.01.1994, p. 83-86.

Research output: Contribution to journalArticle

Galvan, DA, Ciarlone, AE, Pashley, DH, Kulild, JC, Primack, PD & Simpson, MD 1994, 'Effect of smear layer removal on the diffusion permeability of human roots', Journal of Endodontics, vol. 20, no. 2, pp. 83-86. https://doi.org/10.1016/S0099-2399(06)81187-8
Galvan DA, Ciarlone AE, Pashley DH, Kulild JC, Primack PD, Simpson MD. Effect of smear layer removal on the diffusion permeability of human roots. Journal of Endodontics. 1994 Jan 1;20(2):83-86. https://doi.org/10.1016/S0099-2399(06)81187-8
Galvan, David A. ; Ciarlone, Alfred E. ; Pashley, David Henry ; Kulild, James C. ; Primack, Patrice D. ; Simpson, Mark D. / Effect of smear layer removal on the diffusion permeability of human roots. In: Journal of Endodontics. 1994 ; Vol. 20, No. 2. pp. 83-86.
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