In vivo enamel fluid movement
| Autor: | Stefano Chersoni, Carlo Prati, Angelica Bertacci, Carel L. Davidson |
|---|---|
| Přispěvatelé: | Tandheelkundige Materiaalwetenschappen (OUD, ACTA), Bertacci A, Chersoni S, Davidson CL, Prati C. |
| Rok vydání: | 2007 |
| Předmět: |
Dye penetration
Adult Adolescent Dentistry stomatognathic system In vivo Patient age medicine Humans Replica Techniques Child General Dentistry Aged Remineralisation Enamel paint business.industry Chemistry Age Factors Dental Enamel Permeability Exudates and Transudates Middle Aged Tooth enamel stomatognathic diseases medicine.anatomical_structure Transmission microscopy Permeability (electromagnetism) visual_art visual_art.visual_art_medium Biophysics Microscopy Electron Scanning business Rheology |
| Zdroj: | Bertacci, A, Chersoni, S, Davidson, C L & Prati, C 2007, ' In vivo enamel fluid movement ', European Journal of Oral Sciences, vol. 115, pp. 169-173 . https://doi.org/10.1111/j.1600-0722.2007.00445.x European Journal of Oral Sciences, 115, 169-173. Blackwell Munksgaard |
| ISSN: | 0909-8836 |
| Popis: | Enamel is not a completely dense inorganic material asits prismatic structure also contains water and organicmaterial (1–4). Many studies on enamel have focused oncaries research to explain the morphology of deminer-alization and remineralization (5, 6). Despite what isknown about enamel permeability in caries, the efficacyof restorative materials and pulp–dentine–enamel inter-actions remain unresolved (7).Throughout the last century, enamel permeability wasinvestigated in different ways, including dye penetration(8), diffusion of organic components (9), inorganic ions(7) or radioactive tracers (10, 11), and water (1, 12, 13).Studies have applied in vitro and/or in vivo monitoringtechniques, ranging from scanning electron microscopy(SEM) (14) and transmission microscopy (15), to themeasurement of diffusion coefficients (1, 16), electricalresistance (17, 18) or conductance (4, 19).The diffusion rate of cariogenic and cariostatic sub-stances, ions and molecules through the aqueous phasein the enamel and pores plays a crucial role in thedynamics of the caries process (20–22) and fluoridetreatment (23). These transport processes are signifi-cantly affected by enamel porosity and the amount ofwater available in the tissue (24).Fluid flowing through enamel is related to permeabil-ity:itisimportanttocorrelateenamelpermeabilitytoageand the extent of enamel demineralization, as caries sus-ceptibility decreases with age (25). In addition, post-eruptive(continuing) maturation (5,25)couldreducethepermeability of enamel, making it clinically important todetermine enamel permeability in situ, despite the dearthof information currently available (1, 26, 27).The aim of this study was to visualize fluid flowthrough tooth enamel in vivo in permanent immature andmature teeth using a replica technique and SEM obser-vations to test the effect of enamel posteruptive matur-ation. The test null hypothesis was that patient age didnot affect enamel permeability. |
| Databáze: | OpenAIRE |
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