The change of tooth color to yellow is caused by the natural thinning of the tooth enamel layer, which results in the yellow dentin layer underneath becoming more visible. In addition to aging, consumption patterns of caffeine such as coffee and tea, carbonated drinks, and foods with artificial coloring can also cause yellow teeth. Smoking habits are also often a cause of yellow teeth because nicotine and tar in cigarettes can adhere to the tooth enamel, changing its color to yellow or brown. With the many factors that cause yellow teeth, what can be done to whiten teeth easily and quickly?

"Strawberries are fruits that have a fresh natural aroma due to their high antioxidant content, especially from vitamin C. The antioxidant content not only provides a refreshing sensation to the breath, but also helps maintain overall gum and oral health."

1. Take a small amount of natural toothpaste that has been prepared using a toothbrush. 2. Brush your teeth slowly and thoroughly. 3. Wait for approximately 5 minutes after brushing your teeth. 4. Rinse with clean water to remove any remaining toothpaste. 5. Continue brushing your teeth using regular toothpaste to achieve maximum cleanliness.