periodontal infiltration anes thesia

例句：

1. 1. Periodontal disease is a common cause oftooth loss.
   牙周病是牙齿丧失的常见原因。
2. 2. The dentist recommended that heundergo periodontal treatment.
   牙医建议他接受牙周治疗。
3. 3.Regular dental check-upsare essential for maintaining good oralhealth.
   定期的牙科检查对于保持良好的口腔健康至关重要。