dental papilla

例句：

1. 1. The dentist removed thetooth and cleaned the dental papilla.
   牙医拔除了那颗牙齿，并清理了牙乳头。
2. 2. The patient'sdental papilla was infected with bacteria.
   患者的牙乳头被细菌感染了。
3. 3. The dentistadvised the patient to brush their teeth twicea day to prevent dental papillabuildup.
   牙医建议患者每天刷牙两次，以防止牙乳头堆积。