Nanoleakage of current self-etch adhesives bonded to artificial carious dentin

MA'An M. Nayif, Yasushi Shimada, Shizuko Ichinqse, Junji Tagami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: To evaluate the nanoleakage of one- and two-step self-etch adhesives bonded to artificial carious dentin. Methods: Deep dentin of 24 human molars was exposed and divided into four groups. One group served as control while the others were demineralized in artificial demineralization solution for 10 minutes, 6 hours, and 24 hours. Roots were sectioned and the crowns were bonded with one- and two-step self-etch adhesives (Clearfil S3 and Clearfil SE Bond) then restored with flowable composite (Estelite Flow Quick). Specimens were exposed to intrapulpal pressure through a tube connected to a barrel filled with silver nitrate solution in total darkness for 24 hours and then sectioned into two mid-slabs that were photo-developed and prepared for nanoleakage evaluation using FE-SEM and EDX. Penetration of silver into the hybrid and adhesive layers was evaluated and compared between adhesives and dentin condition. Data were statistically analyzed by Kruskal-Wallis test (a= .05). Results: Increasing depths of demineralization were observed with increasing demineralization time. There were statistically significant differences for both adhesives (P< 0.05) and dentin demineralization (P< 0.05) in hybrid and adhesive layers. Normal dentin interfaces revealed no or slight nanoleakage regardless of adhesive. The bonded interface treated with one-step Clearfil S3 showed significant differences between normal and demineralized dentin. Also a trend towards increases in nanoleakage with the increasing of the demineralization time was demonstrated. Different patterns of nanoleakage were observed within adhesives.

Original languageEnglish
Pages (from-to)279-285
Number of pages7
JournalAmerican Journal of Dentistry
Volume23
Issue number5
Publication statusPublished - Oct 2010
Externally publishedYes

Fingerprint

Dental Caries
Adhesives
Dentin
Silver Nitrate
Darkness
Crowns
Silver
Pressure

ASJC Scopus subject areas

  • Medicine(all)
  • Dentistry(all)

Cite this

Nanoleakage of current self-etch adhesives bonded to artificial carious dentin. / Nayif, MA'An M.; Shimada, Yasushi; Ichinqse, Shizuko; Tagami, Junji.

In: American Journal of Dentistry, Vol. 23, No. 5, 10.2010, p. 279-285.

Research output: Contribution to journalArticle

Nayif, MA'An M. ; Shimada, Yasushi ; Ichinqse, Shizuko ; Tagami, Junji. / Nanoleakage of current self-etch adhesives bonded to artificial carious dentin. In: American Journal of Dentistry. 2010 ; Vol. 23, No. 5. pp. 279-285.
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