Holes in the gums are usually cavities, which are caused by tooth decay. Tooth decay is usually caused by bacteria which are different from the ones that cause gum disease. Holes in the gum can also be caused by acute necrotising ulcerative gingivitis, as reported by NHS.
It is necessary to seek medical attention to know the exact cause of the holes. Cavities are common in children, but adults can also get them as they get older due to changes in the mouth. This is because the gums tend to pull away from the teeth as people age thus exposing the teeth to plaque. Cavities can be detected by a dentist during a check-up. An X-ray may be used to check between the teeth.
Cavities are among the most common health problems in the world, as stated by Mayo Clinic. If they are not treated, they can get larger and affect the layers of the teeth. They can also lead to teeth loss, dental infection and severe toothache. The dentist will provide treatment based on the severity of the cavities, according to WebMD. In some situations, the decayed portion will be removed with the use of a drill. The hole is then filled with fillings.