Abstract:
:This study evaluated the biomineralization and dentinal tubules occlusion abilities of the carboxyl-terminated polyamidoamine dendrimer (PAMAM-COOH) on human demineralized dentin in vivo at different time points. Demineralization dentin model with and without treated with PAMAM-COOH were sutured to the interior side of the rat's cheeks, that was incubated in the rats' saliva for 2, 4 and 6 weeks respectively. Finally, the newly formed precipitates were characterized by SEM, EDS, XRD and microhardness test. The hydroxyapatite (HA) on the dentin treated with PAMAM-COOH were formed gradually with the time going by, and the regenerated HA has a similar crystal structure with natural dentin, whereas the crystallites did not exist on the control group. The microhardness of PAMAM-COOH-applied specimens had a significantly higher than those without application. These results suggest that the PAMAM-COOH promoted the biomineralization of demineralized dentin and displayed favourable effects on blocking the open dentinal tubules.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Xie F,Wei X,Li Q,Zhou Tdoi
10.4012/dmj.2015-209subject
Has Abstractpub_date
2016-01-01 00:00:00pages
104-11issue
1eissn
0287-4547issn
1881-1361journal_volume
35pub_type
杂志文章abstract::Thermal misfit is deemed as one reason for the chipping of veneered zirconia restorations. Aim of the present study was to assess the effect of thermal misfit on the fracture load of veneered zirconia frameworks and to evaluate the applicability of a universal veneering ceramic for both zirconia and titanium framework...
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,随机对照试验
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