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Influence of mesoporous silica coating treatment on push-out bond strength of zirconia posts

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 3rd International Conference on Biomedical Engineering and Biotechnology, 25–28 September 2014, Beijing, China

Article type: Research Article

Authors: Feng, Xiaoli | Sun, Ting | Liu, Ruoyu | Zhang, Yanli | Chen, Aijie | Shao, Longquan;

Affiliations: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China | The Medical Centre of Stomatology, The 1st Affiliated Hospital of Jinan University, Guangzhou 510630, China

Note: [] Corresponding author: Longquan Shao, Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. Tel.: +15989283921; Fax: +02062787153; E-mail: shaolongquan@smu.edu.cn.

Keywords: Zirconia, posts, mesoporous silica coating, push-out, root region

DOI: 10.3233/BME-141030

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 6, pp. 2187-2195, 2014

Published: 2014
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Abstract

This study aimed to evaluate the influence of mesoporous silica coating surface treatments on push-out bond strength of zirconia posts. Zirconia posts (Cosmopost) were treated with vehicle (control), sandblasting plus silane application (SB+SI), a combination of sandblasting, mesoporous silica coating and silane application (SB+MSC+SI) (n=10/group). Specimens were cemented with RelyX Unicem (3M ESPE, Germany) then horizontally segmented into three sections and subjected to a push-out test. Surface treatments showed significant higher bond strength than the control group, and SB+MSC+SI group presented higher values than SB+SI group (P<0.05). No significant differences were found in bond strength among root regions (P>0.05). We conclude that the combination of mesoporous silica coating and silane application greatly enhance the push-out bond strength of zirconia posts.

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