Rotten teeth can have a variety of smells, from sweet and fruity to acidic and foul. The main cause of a rotten tooth is tooth decay, which occurs when bacteria in the mouth break down the enamel and dentin of the tooth. As the tooth decay progresses, the bacteria release sulfur compounds which produce a distinctive odor. The smell may also be accompanied by a visible discoloration of the tooth.
Sweet and Fruity Smell
A sweet and fruity smell is usually associated with early stages of tooth decay. The bacteria that cause tooth decay produce lactic acid, which can give the mouth a sweet, fermented odor. This is often accompanied by a yellow discoloration of the tooth. If left untreated, this smell can become stronger and more unpleasant.
Acidic and Foul Smell
If tooth decay is allowed to progress, the bacteria can produce other sulfur compounds such as hydrogen sulfide and methyl mercaptan. These compounds produce an acidic and foul odor that is often described as rotten eggs or sewage. This is often accompanied by a brown or black discoloration of the tooth.
Preventing Rotten Teeth
The best way to prevent rotten teeth is to practice good oral hygiene. This includes brushing your teeth twice a day, flossing daily, and using an antibacterial mouthwash. It is also important to limit sugary and acidic foods and drinks, as these can cause tooth decay. Regular visits to the dentist are also important for maintaining good oral health.