The amount of time it takes to heal a gum disease depends on the severity of the condition. Generally, mild cases can be treated with improved oral hygiene and regular dental visits. Moderate cases may require more intensive treatment, such as scaling and root planing, antibiotics, or surgery. Severe cases may require multiple treatments over a period of months or even years. It is important to follow your dentist's instructions for proper care and maintenance to ensure the best possible outcome for your gum disease. With proper care and maintenance, most people can expect to see improvement in their gum health within a few weeks or months.