What are some disadvantages of the monroe piercing?

The biggest concern with oral piercings is gum/enamel erosion. It happens because the jewelry constantly makes contact with your gums and wears it away. Both gum and enamel erosion are permanent. Depending onyour anatomy, you can get the piercing placed to have minimal contact with your gums/teeth. Thats why its super important to go to a pro for this. Sometimes the jewelry will nestle, and thats awesome in terms of preventing erosion. Erosion is very gradual so a good idea is to take a picture of your gums/teeth before you get the piercing, then just compare your teeth to that every now and then to catch the erosion before it gets bad :)