Bond strength of orthodontic light-cured resin-modified glass ionomer cement

Hsiang Yu Cheng, Chien Hsiu Chen, Chuan Li Li, Hung Huey Tsai, Ta Hsiung Chou, Wei Nan Wang

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The purpose of this study was to compare the bond strengths and debonded interfaces achieved with light-cured resin-modified glass ionomer cement (RMGIC) and conventional light-cured composite resin. In addition, the effects of acid etching and water contamination were examined. One hundred human premolars were randomly divided into five equal groups. The mini Dyna-lock upper premolar bracket was selected for testing. The first four groups were treated with light-cured RMGIC with or without 15 per cent phosphoric acid-etching treatment and with or without water contamination preceding bracket bonding. The control samples were treated with the conventional light-cured Transbond composite resin under acid etching and without water contamination. Subsequently, the brackets were debonded by tensile force using an Instron machine. The modified adhesive remnant index (ARI) scores were assigned to the bracket base of the debonded interfaces using a scanning electron microscope. The bond strength and modified ARI scores were determined and analysed statistically by one-way analysis of variance and chi-square test. Under all four conditions, the bond strength of the light-cure RMGIC was equal to or higher than that of the conventional composite resin. The highest bond strength was achieved when using RMGIC with acid etching but without water contamination. The modified ARI scores were 2 for Fuji Ortho LC and 3 for Transbond. No enamel detachment was found in any group. Fifteen per cent phosphoric acid etching without moistening the enamel of Fuji Ortho LC provided the more favourable bond strength. Enamel surfaces, with or without water contamination and with or without acid etching, had the same or a greater bond strength than Transbond.

Original languageEnglish
Pages (from-to)180-184
Number of pages5
JournalEuropean Journal of Orthodontics
Volume33
Issue number2
DOIs
Publication statusPublished - Apr 2011

Fingerprint

Glass Ionomer Cements
Orthodontics
Composite Resins
Light
Dental Enamel
Water
Adhesives
Acids
Bicuspid
Chi-Square Distribution
Analysis of Variance
Electrons
Transbond

ASJC Scopus subject areas

  • Orthodontics

Cite this

Cheng, H. Y., Chen, C. H., Li, C. L., Tsai, H. H., Chou, T. H., & Wang, W. N. (2011). Bond strength of orthodontic light-cured resin-modified glass ionomer cement. European Journal of Orthodontics, 33(2), 180-184. https://doi.org/10.1093/ejo/cjq056

Bond strength of orthodontic light-cured resin-modified glass ionomer cement. / Cheng, Hsiang Yu; Chen, Chien Hsiu; Li, Chuan Li; Tsai, Hung Huey; Chou, Ta Hsiung; Wang, Wei Nan.

In: European Journal of Orthodontics, Vol. 33, No. 2, 04.2011, p. 180-184.

Research output: Contribution to journalArticle

Cheng, HY, Chen, CH, Li, CL, Tsai, HH, Chou, TH & Wang, WN 2011, 'Bond strength of orthodontic light-cured resin-modified glass ionomer cement', European Journal of Orthodontics, vol. 33, no. 2, pp. 180-184. https://doi.org/10.1093/ejo/cjq056
Cheng, Hsiang Yu ; Chen, Chien Hsiu ; Li, Chuan Li ; Tsai, Hung Huey ; Chou, Ta Hsiung ; Wang, Wei Nan. / Bond strength of orthodontic light-cured resin-modified glass ionomer cement. In: European Journal of Orthodontics. 2011 ; Vol. 33, No. 2. pp. 180-184.
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