Swelling: It sounds like you may have some swelling or they anticipate you having some swelling in the future.
Answered 11/26/2012
5.5k views
Healing effect: Warm salt water can have a healing effect on gum issues for several reasons. Puffy gums can benefit from something called osmosis which causes water to be pulled out of the soft tissue, reducing the puffiness. Also, just the cleaning action of the rinse helps.
Answered 7/2/2013
5.4k views
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