PMID: 9426164Jan 13, 1998Paper

Storage effect on dentine structure and on resultant composite bond strengths

Journal of Oral Rehabilitation
S Y Lee, C T Lin

Abstract

This study evaluates the effects of a food simulating solution (75 vol% ethanol/water) and an artificial saliva (Moi-Stir) on dentine structure and chemistry, using scanning electron microscopic examination and Fourier transform infra-red (FTIR) microscopic characterization. The effect on the bonding of composites to the conditioned dentine were evaluated by shear bond strength (SBS) tests. Three adhesive/composite systems were examined: Tenure/Marathon One, Scotchbond Multi-Purpose/Z100, and Optibond/Herculite XRV. Control specimens were stored in either distilled water or tested without storage. Dentine surface exposure to ethanol resulted in partial loss of the smear layer and of plugs, as well as possible perturbation of collagen. Dentine surfaces exposed to artificial saliva or to distilled water had no evidence of any change from normal appearance of the smear layer. The measured FTIR spectra for most specimens conditioned in these two liquids appeared to be similar to those obtained from fresh dentine. SBS data were analysed using ANOVA and the Tukey LSD test. The SBS value for the non-preconditioned control (23.0 +/- 3.7 MPa) or for the dentine preconditioned in distilled water (22.9 +/- 4.2 MPa) was significantly highe...Continue Reading

Citations

Jun 8, 2002·Journal of Biomechanics·Stefan HabelitzSally J Marshall
Jun 22, 2011·Journal of Conservative Dentistry : JCD·Saraswathi Devabhaktuni, Mk Manjunath
Aug 12, 2009·Journal of Dentistry·Atia AnjumJunji Tagami
Jun 17, 2003·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Nuria I EscribanoJose C de la Macorra

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