Cuts in your mouth usually heal within days, but during the process, you will definitely experience uncomfortable and painful eating and talking activities.
Any bleeding needs to be stopped first. Some procedures that help stop bleeding include: Rinsing with water and gargling for several seconds, focusing on the bleeding area. Applying firm pressure to the bleeding for several minutes, or putting an ice cube wrapped in a cloth onto the injured area for several minutes.
The same treatments can also be used for pain relief. You may add a teaspoon of salt to a cup of warm water and use that rinse several times a day to soothe the area. However, you should avoid foods or drinks that are salty, acidic or alcoholic. Rinsing with aloe vera can also be soothing to a mouth wound.

Cuts that are large and gaping, won’t stop bleeding or expose the root of your tooth should be seen by a dentist. A dentist should also examine any cut that has dirt or debris or shows signs of infection, such as drainage. Large cuts may need sutures to prevent further damage to your gum tissue and to protect the tissues on your tooth’s root.