牙ngaa4石sek6

English

1. dental calculus; tartar
2. dental calculus; dental tartarunreviewed?

粵語 — Cantonese

1. 黏附喺牙齒表面，黃黃哋乃至啡黑色嘅硬質沉積物；係由牙菌膜畀口水入面嘅鈣鹽礦化變硬而形成unreviewed?

Examples

• unreviewed?

  牙石導致更多牙菌膜積聚，增加患牙周病嘅機會。

  Dental calculus leads to the accumulation of more dental plaques and the rise of chance of suffering from periodontitis.