Final answer:
Gingivitis is the disease that causes redness and inflammation of the gums but can be reversed with proper brushing and flossing.
Step-by-step explanation:
The disease that causes redness and inflammation of the gums but can be reversed with proper brushing and flossing is gingivitis. Gingivitis is the first stage of periodontal disease and is caused by the buildup of plaque on the teeth. When the gums become inflamed and irritated, they may appear red and bleed easily.
To treat gingivitis, it is important to practice good dental hygiene. This includes proper brushing and flossing techniques to remove plaque and bacteria from the teeth and gums. Regular professional dental cleanings can also help remove any hardened plaque, known as tartar, that may have formed. With proper care, gingivitis can be reversed and the gums can return to a healthy state.