Results: Only two cases among all 89 patients occurred falling off post crown.

本组89例病人中仅2例病人出现桩冠脱落现象。

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Objective: To evaluate the effect of the stress distribution of dentine under post crown prosthesis.

目的：分析桩冠修复后对根管壁牙本质应力分布的影响。

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Objective To study the effect of the various methods of root canal impression on the fixing power of post crown.

目的研究根管印模的不同方法对桩冠固位力的影响。

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In south Wales, more than 50 Post Office staff are striking over plans to offer the Crown Post Offices in Carmarthen, Morriston, Neath and Port Talbot to a franchise partner.

BBC: Crown Post Office workers strike over franchise plans

The union says 17 Crown Post Offices will be affected by industrial action in Wales.

BBC: Crown Post Office workers strike over franchise plans

Two Crown Post Offices in north east Wales - Rhyl and Holywell - are also included in the proposal.

BBC: Crown Post Office workers strike over franchise plans