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Effect of proximal box elevation with resin composite on marginal quality of resin composite inlays in vitro
چکیده:   (5907 مشاهده)

 Objectives To evaluate marginal quality and resin–resin transition of lab made resin composite inlays in deep proximal cavities with and without 3mm proximal box elevation (PBE) using resin composites before and after thermo-mechanical loading (TML).

 Methods MOD cavities with one proximal box beneath the cementoenamel junction were prepared in 40 extracted human third molars. Proximal boxes ending in dentine were elevated 3mm with different resin composites (G-Cem, Maxcem Elite as self-adhesive resin cements and Clearfil Majesty Posterior as restorative resin composite in one or three layers bonded with AdheSE), or left untreated. Clearfil Majesty Posterior inlays were luted with Syntac and Variolink II (n=8). Marginal quality as well as the PBE-composite inlay interface was analyzed under an SEM using epoxy resin replicas before and after thermomechanical loading (100,000×50N and 2500 thermocylces between +5°C and +55°C).

  Results Bonding resin composite inlays directly to dentine showed similar amounts of gap-free margins in dentine compared to PBE applied in three consecutive layers (p>0.05). The groups with self-adhesive resin cements for PBE exhibited significantly more gaps in dentine (p<0.05).

 Significances With layered resin composite, PBE is effective in indirect resin composite bonding to deep proximal boxes. Self-adhesive resin cements are not suitable for this indication.


 Source: Journal of Dentistry

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نوع مطالعه: پژوهشي | موضوع مقاله: ترمیمی
دریافت: 1391/9/28 | پذیرش: 1394/9/25 | انتشار: 1394/9/25
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J. Roggendorf M, Krämer N, Dippold C, E. Vosen V, Naumann M, Jablonski-Momeni A et al . Effect of proximal box elevation with resin composite on marginal quality of resin composite inlays in vitro. 3 2012;
URL: http://idai.ir/article-1-847-fa.html

Effect of proximal box elevation with resin composite on marginal quality of resin composite inlays in vitro. 1. 1390;

URL: http://idai.ir/article-1-847-fa.html



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Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.
جلد 0 - ترمیمی برگشت به فهرست نسخه ها
جامعه اسلامی دندانپزشکان Islamic Dental Association of IRAN

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