Posted by Dr. Taner Cakmak on Tue, 4 Mar 2025
Learn how fasting affects oral health, including benefits like reduced sugar exposure and risks such as dry mouth. Get tips for maintaining dental hygiene during Ramadan.

Fasting can have both positive and negative effects on oral health, depending on the type and duration of the fast. Here’s how it can impact your teeth and gums:
Potential Benefits of Fasting for Oral Health
- Reduced Sugar and Acid Exposure – Avoiding frequent snacking and sugary drinks can lower the risk of cavities by reducing acid attacks on enamel.
- Better Gum Health – Less frequent eating can mean less plaque buildup, which may help reduce the risk of gum disease.
- Improved Saliva Composition – Some studies suggest fasting can enhance the quality of saliva, which helps neutralize acids and protect teeth.
Potential Risks of Fasting for Oral Health
- Dry Mouth (Xerostomia) – Prolonged fasting, especially with restricted water intake, can lead to dry mouth, bad breath, and increased cavity risk.
- Increased Acidity – Long fasting periods can lead to acid reflux or ketosis, which exposes teeth to acids that weaken enamel.
- Nutrient Deficiencies – Poorly balanced fasting can result in deficiencies in calcium, vitamin D, and other essential nutrients for strong teeth and gums.
Tips to Protect Oral Health While Fasting
- Stay hydrated by drinking water when permitted.
- Maintain good oral hygiene with regular brushing and flossing.
- Avoid breaking your fast with acidic or sugary foods to prevent enamel erosion.
- Use sugar-free gum or rinse with water to stimulate saliva production.
Dental Hygiene During Ramadan
During Ramadan, maintaining oral hygiene is essential, especially since fasting can lead to dry mouth, bad breath, and increased plaque buildup due to reduced saliva production. Here’s a guide to keeping your teeth and gums healthy while fasting:
Brushing & Flossing
- ✅ Brush twice daily – After Suhoor (pre-dawn meal) and after Iftar (evening meal).
- ✅ Use fluoride toothpaste to protect against cavities.
- ✅ Floss daily to remove food particles and plaque buildup.
Using Miswak or Toothpaste During Fasting
- ✅ Miswak (natural toothbrush) is Sunnah and safe to use.
- ✅ If using toothpaste during fasting, avoid swallowing to ensure the fast remains valid.
Staying Hydrated & Preventing Dry Mouth
- ✅ Drink plenty of water between Iftar and Suhoor to keep saliva production up.
- ✅ Eat hydrating foods like fruits and vegetables at Suhoor.
- ✅ Avoid salty, spicy, and caffeinated foods, as they can increase dehydration.
Preventing Bad Breath
- ✅ Rinse with water or a mouthwash (without alcohol) after Iftar and before Suhoor.
- ✅ Chew sugar-free gum after Iftar to stimulate saliva flow.
- ✅ Eat fiber-rich foods to reduce bacteria buildup in the mouth.
Visiting the Dentist During Ramadan
- ✅ Routine dental checkups and cleanings are allowed during fasting.
- ✅ If needed, dental treatments like fillings or extractions should ideally be done after Iftar unless urgent.
Conclusion
Maintaining good oral hygiene during Ramadan is essential to prevent bad breath, cavities, and gum issues while fasting. By brushing, flossing, staying hydrated, and following healthy eating habits, you can keep your teeth and gums in top shape throughout the holy month.
At Kanata South Dental Clinic, we are here to help you with your dental needs during Ramadan. If you need a checkup, cleaning, or treatment, feel free to book an appointment. Call us at 613-519-1400.
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