Can Diabetes Cause Dry Mouth?

 Diabetes Video transcript


Hi everyone

In today's episode, I’m going over.....

The question “Can Diabetes cause Dry Mouth”

 I'm Dr. Anna

and In the next few minutes you are going to learn…

About how Diabetes causes Dry Mouth and other dental problems and what can be done to help.

Head over to to get the: Free Dry Mouth eBook, Dry Mouth Assessment Questionnaire, Dry Mouth Worksheet and Daily Checklist.

These materials are what I give my patients who have dry mouth, and it helps many of them experience relief.

With that being said:

👉👉 Do you have Diabetes and Dry Mouth?  Let me know it the comments, and what have you tried to make your dry mouth caused by Diabetes better.

I will start by discussing

What is diabetes?

It is a group of metabolic disorders where there is an increased level of sugar in the blood over a prolonged period. There are three types of diabetes.  

  • Type 1 (insulin-depended diabetes mellitus or juvenile diabetes) occurs where the pancreas does not produce enough insulin to absorb sugar from blood into liver, fat and skeletal muscle cells
  • Type 2 occurs when there is resistance of the body cells to the insulin which is produced by the pancreas.
  • Gestational diabetes occurs in pregnant women who did not have history of diabetes prior.

Diabetes should be diagnosed and treated by your medical doctor. Type 1 diabetes is managed with insulin injections and Type 2 with medications which may or may not contain insulin.  Also, doctors recommend a healthy diet, regular physical exercise and avoidance of tobacco.

 How does Diabetes cause Dry Mouth?

First is dehydration. Diabetics, especially those who are not well controlled lose a lot of their fluids through urination. If we do not have enough water our bodies simply cannot produce enough saliva and as a result we experience dry mouth.

Some medications used to treat diabetes, including diuretics, can also cause dry mouth.

Diabetes can also alter blood circulation, including to the salivary glands, by which causing them to not work as well as they should. (1)

Aside from Dry Mouth

There are many other ways in which diabetes affects the oral cavity.

  • BACTERIAL, VIRAL AND FUNGAL INFECTIONS : Because with diabetes the body cannot defend itself as well, it makes us more susceptible to infections from bacteria, viruses and fungus (including candidiasis).
  • LONGER TIME TO HEAL. Wound healing in diabetincs usually takes a longer time. So mouth sores, cuts, burns take a longer time to get better. Also, it takes longer for the tissues and bone to heal after dental procedures such as extractions and root canals.
  • BLOOD FLOW CHANGES: Due to microvascular changes due to diabetes, blood cannot reach the tissues it normally should as efficiently. Gum and supporting bone suffers as a result and disease such as gingivitis and periodontitis develops. Changes in blood flow and circulation also affects our salivary glands and their function and possibly cause dry mouth.  
  • HIGHER SUGAR CONCENTRATION in SALIVA. We know that sugar is bad for our teeth and that is causes cavities. If we have more sugar in our saliva the chance of getting cavities will be higher. As we know lack of saliva (dry mouth) also increases the risk for cavities. So both things can put diabetics at a higher risk.
  • DIABETIC NEUROPATHY which occurs when there are not-normal changes in the nerves in the in the head and neck region possible causing the sensation of paresthesia, tingling, numbness, burning or pain etc.

What are the ways of treating Dry Mouth?

  • First see your doctor for diagnosis and treatment of diabetes.
  • Speak to your doctor about your dry mouth, if your medication can be causing it, if changing the medications to a non-dry-mouth medication is an option.
  • Stay hydrated. Drink at least 2 L of water per day. 
  • Follow proper hygiene: brush 2x per day, floss daily. See in links below information for proper hygiene instructions.
  • Use over the counter dry mouth products such and mouthwash, mouth spray, toothpaste, oral adhesive discs (Xylimelts
  • Ask your doctor about prescription medications such as Pilocarpine or Cevimeline. 
  • Proper diet: avoid Salty, Sticky, Sugary, Salty, Sour foods. 
  • Avoid alcohol and alcohol-containing mouthwashes
  • Avoid smoking. 

Again this is Dr. Anna with the Dry Mouth Show

👉👉Let me know it the comments if you have Diabetes and Dry Mouth, and what have you tried to make your dry mouth caused by Diabetes better.


For more information

Head over to to get the: Free Dry Mouth eBook, Dry Mouth Assessment Questionnaire, Dry Mouth Worksheet and Daily Checklist.

For more information on Dry Mouth and its management follow the links below: 

Start with the Free Dry Mouth eBook and Dry Mouth Worksheets: 👉👉👉

Join the Dry Mouth Community on Facebook: 👉👉👉

Video on the “7 Best Dry Mouth Remedies”👉👉👉:

Best Wishes,

Dr. Anna Glinianska

This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment. 

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