In:
European Journal of Oral Sciences, Wiley, Vol. 121, No. 4 ( 2013-08), p. 363-369
Abstract:
Uptake of eugenol from eugenol‐containing temporary materials may reduce the adhesion of subsequent resin‐based restorations. This study investigated the effect of duration of exposure to zinc oxide–eugenol ( ZOE ) cement on the quantity of eugenol retained in dentin and on the microtensile bond strength (μ TBS ) of the resin composite. The ZOE cement ( IRM Caps) was applied onto the dentin of human molars (21 per group) for 1, 7, or 28 d. One half of each molar was used to determine the quantity of eugenol (by spectrofluorimetry) and the other half was used for μ TBS testing. The ZOE ‐exposed dentin was treated with either O pti B ond FL using phosphoric acid (H 3 PO 4 ) or with G luma C lassic using ethylenediaminetetraacetic acid ( EDTA ) conditioning. One group without conditioning (for eugenol quantity) and two groups not exposed to ZOE (for eugenol quantity and μ TBS testing) served as controls. The quantity of eugenol ranged between 0.33 and 2.9 nmol mg −1 of dentin (median values). No effect of the duration of exposure to ZOE was found. Conditioning with H 3 PO 4 or EDTA significantly reduced the quantity of eugenol in dentin. Nevertheless, for O pti B ond FL , exposure to ZOE significantly decreased the μ TBS , regardless of the duration of exposure. For G luma C lassic, the μ TBS decreased after exposure to ZOE for 7 and 28 d. O pti B ond FL yielded a significantly higher μ TBS than did G luma C lassic. Thus, ZOE should be avoided in cavities later to be restored with resin‐based materials.
Type of Medium:
Online Resource
ISSN:
0909-8836
,
1600-0722
DOI:
10.1111/eos.2013.121.issue-4
Language:
English
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
2025657-7
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