Why have my teeth and tongue suddenly turned black after treatment for a gum infection?
Chlorhexidine mouthwash is a very commonly-used and effective antiseptic, but unfortunately it can cause brown, greenish or even black staining. It also stains fabric, so be careful not to spill any on your clothes. Make an appointment with your dentist if you notice staining on your teeth after using chlorhexidine mouthwash. He or she will be able to confirm whether the staining is due to your mouthwash or due to other causes. If it is chlorhexidine staining, your dentist or hygienist will be able to remove it using a special electric toothbrush and gritty toothpaste. Your tongue should go back to its usual colour once you stop using the mouthwash. To prevent further staining while using chlorhexidine mouthwash, follow the instructions on the bottle very carefully. • There will be less staining if your teeth are clean before you use the mouthwash. Brush your teeth at least half an hour before using the mouthwash. Or, brush your teeth, rinse your mouth with water, wait five minutes and
