蛀牙 (zhù yá) — tooth decay, dental caries; cavity (in a tooth)

Definition

蛀牙 specifically means a decayed tooth or the cavity caused by decay — it's the dental condition. 窟窿 is a general hole or cavity in any object, not tooth-specific; 空洞 focuses on hollow spaces inside the body or, as an adjective, empty ideas.

noun

tooth decaydental cariescavity (in a tooth)

Measure word · 颗

Examples

蛀牙。
Yī shēng shuō wǒ de zhù yá xū yào jǐn kuài bǔ shàng.
The doctor said my cavity needs to be filled as soon as possible.
，蛀牙。
Xiǎo shí hou chī tài duō táng, xiàn zài cháng le zhù yá.
I ate too much candy as a child, and now I have tooth decay.
蛀牙。
Dìng qī jiǎn chá kě yǐ yù fáng zhù yá.
Regular check-ups can prevent tooth decay.