Study on remineralization of human fluorosed teeth in vitro / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 96-99, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-248300
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the transformation of microhardness and microstructures of human dental fluorosis after demineralization and remineralization in vitro.</p><p><b>METHODS</b>Forty human dental fluorosis enamel blocks were demineralized by acid-etching gel, then subjected to 1.0% casein phosphopeptides stabilized calcium phosphate (CPP-CP) for remineralization. Surface enamel microhardness was measured on the enamel blocks before and after demineralization and after remineralization. The enamel specimens was observed by stereomicroscope and scanning electron microscope, then sectioned (100 microm) and examined by transmission light microscope and polarized light microscope.</p><p><b>RESULTS</b>Before demineralization, the average knoop hardness value of the fluorosed teeth was (241.53 +/- 21.31) kHV. After demineralization, obvious decrease of the surface hardness of the enamel was observed, the mean value was (175.76 +/- 24.99) kHV (P < 0.05), the percent of the surface microhardness demineralization (% SMHD) was (27.23 +/- 1 4.79)%, and major demineralization was under the surface of the enamel, which was similar to the early natural enamel caries. After remineralization, obvious increase of the surface hardness of the enamel was observed, the mean value was (210.17 +/- 21.48) kHV (P < 0.05), the percent of the surface microhardness remineralization (% SMHR) was (52.32 +/- 4.23)%, major remineralization was under the surface of the enamel.</p><p><b>CONCLUSION</b>Remineralization could be used to prevent and cure the early natural enamel caries of fluorosed dental teeth.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Tooth Remineralization
/
In Vitro Techniques
/
Calcium Phosphates
/
Cariostatic Agents
/
Caseins
/
Tooth Demineralization
/
Dental Caries
/
Dental Enamel
/
Hardness
Limits:
Humans
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2009
Type:
Article
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