2026-02-19
Fasting and Oral Health
What We Need to Know
As the holy month of Ramadan approaches, many people have questions about the effects of fasting on oral and dental health. The good news is that fasting itself is not harmful to teeth; however, observing a few simple tips is essential for maintaining oral health.
The Most Important Oral Changes During Fasting
1. Reduced Saliva Secretion
Saliva plays an important role in rinsing the mouth, neutralizing acids, and preventing tooth decay. During fasting, due to not eating or drinking, saliva production decreases.
2. Bad Breath (Halitosis)
Bad breath in people who fast is often due to:
• Dry mouth
• Protein breakdown
• Use of the body’s fat reserves
It is usually not a sign of disease or tooth decay.
3. Relative Increase in the Risk of Tooth Decay and Gum Inflammation
If oral hygiene is not properly maintained, reduced saliva can create a suitable environment for bacterial growth.
How to Maintain a Healthy Mouth During Ramadan
1. Regular Brushing and Flossing
• Brush after Suhoor and before bed
• Use dental floss at least once a day
2. Cleaning the Tongue
• A large part of bad breath originates from the surface of the tongue
• Cleaning the tongue with a toothbrush or scraper is recommended
3. Drinking Enough Water Between Iftar and Suhoor
• Dehydration is one of the main causes of dry mouth
4. Choosing Appropriate Foods
• Reduce consumption of very sweet, sticky, and highly spiced foods
• Consume fruits, vegetables, and dairy products
5. Using Sugar-Free Chewing Gum
• Helpful for stimulating saliva between Iftar and Suhoor
Scientific Summary
Scientific evidence shows:
• Fasting does not cause tooth decay or direct damage to teeth
• Proper oral hygiene is the key to maintaining dental health during this month
• Bad breath during fasting is often physiological and temporary
Dr. Amir Mohammad Aloumi (Dentist)
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Charity Foundation of Special Disease
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