回复：我妈妈72岁，牙齿很差了。请问洗牙是否还对牙齿保健有效？她的牙床经常发炎。

Regular cleaning or deep clean always helps. However, the more important one is how your Mom's teeth and gum respond to the procedures. The treatment plan will be based on the reponse: more frequent cleanings, fillings, extractions, etc.

Good luck.