Dentin permeability

sealing the dentin in crown preparations.

E. L. Pashley, R. W. Comer, M. D. Simpson, J. A. Horner, D. H. Pashely, Wyatt Franklin Caughman

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Provisional restorations of full crown preparations may permit more microleakage of bacteria and their products than the final castings do. However, most investigations of the sealing qualities of cemented castings have reported that they too permit dye leakage. One approach to the problem is to seal the dentin with dentin bonding agents at the completion of the crown preparation. This study evaluated the ability of six different dentin bonding agents to seal the dentin of crown preparations of human teeth in vitro using two independent techniques. The first technique quantitated fluid filtration across dentin before and after treatment with dentin bonding agents at one hour, one day, one week, and one month and after thermocycling. The second method measured silver nitrate penetration of the thin veneers of dentin bonding agents into the dentin. Both methods correlated well with each other. The best seals were obtained with Prisma Universal Bond 2 or Superbond powder plus liquid. The worst seals were found using Gluma and Superbond liquid only. Clearfil PhotoBond, Amalgambond, and Scotchbond 2 gave intermediate results. Although the dentin bonding agents tend to accumulate on chamfers, thereby increasing their thickness to 200-300 microns, the method looks promising as a simple way to protect the pulp from the consequences of microleakage.

Original languageEnglish (US)
Pages (from-to)13-20
Number of pages8
JournalOperative Dentistry
Volume17
Issue number1
StatePublished - Jan 1 1992

Fingerprint

Dentin Permeability
Dentin-Bonding Agents
Dentin
Crowns
Tooth Preparation
Silver Nitrate
Powders
Coloring Agents
Bacteria

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Pashley, E. L., Comer, R. W., Simpson, M. D., Horner, J. A., Pashely, D. H., & Caughman, W. F. (1992). Dentin permeability: sealing the dentin in crown preparations. Operative Dentistry, 17(1), 13-20.

Dentin permeability : sealing the dentin in crown preparations. / Pashley, E. L.; Comer, R. W.; Simpson, M. D.; Horner, J. A.; Pashely, D. H.; Caughman, Wyatt Franklin.

In: Operative Dentistry, Vol. 17, No. 1, 01.01.1992, p. 13-20.

Research output: Contribution to journalArticle

Pashley, EL, Comer, RW, Simpson, MD, Horner, JA, Pashely, DH & Caughman, WF 1992, 'Dentin permeability: sealing the dentin in crown preparations.', Operative Dentistry, vol. 17, no. 1, pp. 13-20.
Pashley EL, Comer RW, Simpson MD, Horner JA, Pashely DH, Caughman WF. Dentin permeability: sealing the dentin in crown preparations. Operative Dentistry. 1992 Jan 1;17(1):13-20.
Pashley, E. L. ; Comer, R. W. ; Simpson, M. D. ; Horner, J. A. ; Pashely, D. H. ; Caughman, Wyatt Franklin. / Dentin permeability : sealing the dentin in crown preparations. In: Operative Dentistry. 1992 ; Vol. 17, No. 1. pp. 13-20.
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