Dentin surface treatment using a non-thermal argon plasma brush for interfacial bonding improvement in composite restoration

Andy C. Ritts, Hao Li, Qingsong Yu, Changqi Xu, Xiaomei Yao, Liang Hong, Yong Wang

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

The objective of this study was to investigate the treatment effects of non-thermal atmospheric gas plasmas on dentin surfaces used for composite restoration. Extracted unerupted human third molars were prepared by removing the crowns and etching the exposed dentin surfaces with 35% phosphoric acid gel. The dentin surfaces were treated using a non-thermal atmospheric argon plasma brush for various periods of time. The molecular changes of the dentin surfaces were analyzed using Fourier transform infrared spectrophotometry/attenuated total reflectance (FTIR/ATR), and an increase in the amount of carbonyl groups was detected on plasma-treated dentin surfaces. Adper Single Bond Plus adhesive and Filtek Z250 dental composite were applied as directed. To evaluate the dentin/composite interfacial bonding, the teeth thus prepared were sectioned into micro-bars and analyzed using tensile testing. Student-Newman-Keuls tests showed that the bonding strength of the composite restoration to peripheral dentin was significantly increased (by 64%) after 30 s of plasma treatment. However, the bonding strength to plasma-treated inner dentin did not show any improvement. It was found that plasma treatment of the peripheral dentin surface for up to 100 s resulted in an increase in the interfacial bonding strength, while prolonged plasma treatment of dentin surfaces (e.g. 5 min) resulted in a decrease in the interfacial bonding strength.

Original languageEnglish (US)
Pages (from-to)510-516
Number of pages7
JournalEuropean Journal of Oral Sciences
Volume118
Issue number5
DOIs
StatePublished - Oct 1 2010
Externally publishedYes

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Argon
Dentin
Therapeutics
Tooth
Infrared Spectrophotometry
Plasma Gases
Third Molar
Fourier Analysis
Crowns
Adhesives
Gels
Students

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Dentin surface treatment using a non-thermal argon plasma brush for interfacial bonding improvement in composite restoration. / Ritts, Andy C.; Li, Hao; Yu, Qingsong; Xu, Changqi; Yao, Xiaomei; Hong, Liang; Wang, Yong.

In: European Journal of Oral Sciences, Vol. 118, No. 5, 01.10.2010, p. 510-516.

Research output: Contribution to journalArticle

Ritts, Andy C. ; Li, Hao ; Yu, Qingsong ; Xu, Changqi ; Yao, Xiaomei ; Hong, Liang ; Wang, Yong. / Dentin surface treatment using a non-thermal argon plasma brush for interfacial bonding improvement in composite restoration. In: European Journal of Oral Sciences. 2010 ; Vol. 118, No. 5. pp. 510-516.
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