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Filling in dentinal tubules

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Ming-Han Liu1, Chin-Han Chan1, Jiou-Huei Ling2,3 and C R Chris Wang1,3

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We report on the demonstration of two occlusion protocols for exposed dentinal tubules with the aid of gold nanoparticles: first, the inner tubular walls are pre-adsorbed by sub-monolayer gold nanoparticles, followed by a silver staining process to achieve tubular occlusion. Second, highly concentrated gold nanoparticles were brushed into the exposed ends of dentinal tubules, followed by laser irradiation which promoted sintering of gold nanoparticle aggregates via photothermal conversion.


PACS

87.85.Qr Nanotechnologies-design

61.80.Ba Ultraviolet, visible, and infrared radiation effects (including laser radiation)

87.85.J- Biomaterials

81.20.Ev Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

Subjects

Condensed matter: structural, mechanical & thermal

Dates

Issue 47 (28 November 2007)

Received 16 June 2007, in final form 2 September 2007

Published 17 October 2007



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