How many times a day should you brush your teeth?

1. How many times a day should you brush your teeth?

• A

  1

• B

  2

  According to Dr. Doan Hong from the Vietnam Institute of Applied Medicine, most experts and dentists recommend brushing your teeth twice a day with fluoride toothpaste for two minutes each time. You should also avoid brushing more than three times a day, as excessive brushing can erode tooth enamel. The best times to brush are at the beginning and end of the day; however, many people skip or frequently forget to brush in the evening.
  In fact, saliva helps prevent bacteria from attacking tooth enamel, but saliva production decreases significantly at night, making brushing your teeth before bed an important part of your oral hygiene routine.
  Over time, skipping nighttime brushing can lead to significant damage, including a higher risk of plaque buildup. Therefore, brushing once a day is not enough to maintain good oral hygiene. Studies show that it only takes about 4-12 hours for plaque to begin forming on teeth. The longer bacteria remain on teeth, the more oral health problems they cause. Some potential side effects of brushing only once a day include cavities, gum disease, and chronic bad breath.

• C

  3

2. How often should I replace my toothbrush?

• A

  2 months

• B

  3 months

  If you often forget to brush your teeth before bed, you should brush them right after dinner. You should prioritize using a toothbrush with soft bristles; replace your toothbrush every three months.
  According to research by Bioteca (South Korea), after three months, a toothbrush becomes a breeding ground for 4 million bacteria, including E-coli found in human feces. Using dental floss before bed can help remove food and debris from between teeth, contributing to fresher breath.

• C

  4 months

• D

  5 months

Nhu Loan

Source: https://vtcnews.vn/nen-danh-rang-bao-nhieu-lan-moi-ngay-ar904189.html