The DOI matches its Crossref record, with a small difference in title or year.
In vivo Progress of Enamel and Root Surface Lesions under Plaque as a Function of Time
Abstract
This paper deals with enamel and root surface demineralization under plaque in vivo as a function of time. The enamel was demineralized using the Øgaard method in which preformed orthodontic bands are attached to the premolars in situ for 4, 6, and 8 weeks; a niche in the bands is responsible for plaque accumulation. In a second experiment cement-covered root surfaces (and enamel) were mounted on a removable appliance (Hawley retainer). Also in this case an orthodontic band was placed over the samples to create a space for plaque accumulation of about 0.8 mm between sample and band. All samples were analyzed by means of microradiography. The results show that (1) demineralization of enamel with the Øgaard method and using the Hawley retainer gives values for lesion depth and mineral loss that are statistically not significantly different; (2) lesion progress and mineral loss in vivo is about 2.5 times faster in roots than in enamel; (3) the demineralization in enamel is roughly linear with time, and (4) roots demineralize in vivo very fast during the 1st week and much more slowly there after.
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Caries progress is faster in dentine than in enamel, and under the same cariogenic challenge dentine is more susceptible to demineralization than enamel.
“Nevertheless, caries progress is faster in dentine than in enamel [4] because dentine has a higher organic matrix percentage [5], higher permeability [6], and smaller crystals with higher carbonate concentration [7], resulting in a higher critical pH for dentine than for enamel demineralization [8–10].”
From Validation of a Cariogenic Biofilm Model to Evaluate the Effect of Fluoride on Enamel and Root Dentine Demineralization (2016) · cites this paper as [4]
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Fernández, C. E., Tenuta, L. M. A., & Cury, J. A. (2016) · PLOS ONE · doi:10.1371/journal.pone.0146478 · Cited by 74
Metadata
- Authors
- Øgaard, B., Rølla, G., & Arends, J.
- Venue
- Caries Research
- Publisher
- S. Karger AG
- Published
- 2009-11-18
- Pages
- 302-305
- ISSN
- 0008-6568
- 1421-976X
- Cited by
- 53
- References
- 0
- Language
- en
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