用磁场影响牙结石重新附着可降低缘龈炎的复发率。

The recurrent rate of the marginal gingivitis can be decreased in a magnetic field that interferes with adhesive force of the dental tophus.

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从颜色变化、边缘密合性、颈缘染色、崩瓷、牙龈炎等指标进行临床检查。

We compared the clinical examination from color diversity, cervical margin's dense and fit nature, cervical margin's coloration, collapsing porcelain and gingivitis and so on.

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