龋 (w)

(qǔ) decayed teeth; dental caries

龋洞 (w)

(qǔdòng) hole due to dental caries

龋蠹 (w)

(qǔdù) rotten teeth

龋齿 (w)

(qǔchǐ) tooth decay; dental caries; cavity

龋齿性 (w)

(qǔchǐxìng) caries-inducing