Why are teeth yellow when brushed morning and night?

There are several reasons why teeth may appear yellow even after brushing them morning and night. Some of the common causes include:

1. Poor Brushing Technique: Brushing teeth vigorously or using a hard-bristled toothbrush can damage the enamel and expose the yellow dentin underneath. It is essential to brush gently with a soft-bristled toothbrush and use proper brushing techniques.

2. Dark-Colored Foods and Drinks: Consuming foods and beverages that contain dark pigments, such as coffee, tea, red wine, berries, and certain sauces, can stain teeth over time. These pigments can adhere to the surface of the teeth and cause them to appear yellow.

3. Smoking: Smoking cigarettes, cigars, or pipes can cause teeth to become stained and yellow. The nicotine and tar in tobacco products leave behind residues that stick to the teeth and discolor them.

4. Aging: As people age, the enamel on their teeth naturally thins, revealing the dentin underneath. Dentin is a yellow-colored tissue that forms the main structure of the tooth. The thinning of enamel makes the teeth more prone to discoloration.

5. Genetic Factors: Some people have naturally yellowish teeth due to genetics. The color of teeth can be influenced by genes that determine the thickness and translucency of the enamel.

6. Dental Conditions and Medications: Certain dental conditions, such as cavities, gum disease, and root canal treatments, can lead to tooth discoloration. Additionally, some medications, such as certain antibiotics and mouthwashes, can cause teeth to become yellow.

If you are concerned about the yellow appearance of your teeth despite regular brushing, it is advisable to consult a dentist. They can evaluate the cause of discoloration and recommend appropriate treatments to whiten your teeth and improve their overall appearance.