Oral Health: Mouthwash, Tongue Coating, Bad Breath, and Dry Mouth - Dentistry

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Mouthwash, tongue coating, bad breath, dry mouth?


Hello, Director:
1.
I have been using alcohol-free antibacterial mouthwash by Li X De Lin, and the next morning after use, I notice a white film on my teeth.
Previously, I read that you mentioned this could be due to inadequate brushing.
Can I interpret the presence of this white film as a sign that the mouthwash is effective, which would be a good thing?
2.
I have a thick coating on my tongue.
When I was younger, I did not take care of my oral hygiene, which later led to serious dental and halitosis issues.
After resolving my dental problems, my dentist advised me that regular dental cleanings, brushing after meals, and cleaning my tongue would help with gum swelling and bad breath.
However, no matter how diligently I brush my tongue, it becomes thick again the next day after eating, and I even brush it to the point of numbness.
Do you have any better methods? My bad breath persists even after brushing, and my fingers smell bad after touching my teeth.
3.
I experience frequent dry mouth.
I consume around 3000-4000 cc of fluids daily, including water and soups, with at least 2500-3000 cc being water.
However, I often feel dry mouth unless I drink dairy products, which provide a bit of lubrication.
Could you explain why this is happening? Or am I being too lenient with my standards for dry mouth? The dry mouth I experience does not lead to a persistent cough.
I would appreciate your insights on these matters.
Thank you!

Tongxue, 20~29 year old female. Ask Date: 2020/09/27

Dr. Zeng Guanghui reply Dentistry


Hello, students:
1.
If you have been using mouthwash long-term and maintaining thorough oral hygiene, yet still have a coated tongue, you should consider the possibility of an oral candidiasis infection.
It is advisable to consult a dentist for further examination.

2.
If you experience dry mouth despite drinking plenty of water, along with issues of bad breath, you should consider whether there is a problem with saliva secretion or if gastroesophageal reflux disease (GERD) is causing the bad breath.
It is recommended to see an internist for further evaluation.

Director Tseng Guang-Hui, Dental Department, Nantou Hospital

Reply Date: 2020/09/27

More Info


Your concerns about oral health, including bad breath, tongue coating, and dry mouth, are quite common and can be interconnected. Let's break down each of your questions and provide some insights based on medical knowledge.

1. White Coating on Teeth After Using Mouthwash: The white film you notice on your teeth after using a non-alcoholic mouthwash could be a combination of several factors. It might be a residue from the mouthwash itself, or it could be plaque that hasn't been effectively removed during brushing. While it's good that you're using mouthwash, it’s essential to ensure that you’re brushing and flossing thoroughly. The presence of a white coating can indicate that bacteria are still present, which could contribute to bad breath and other oral health issues. Therefore, while the mouthwash is doing its job to some extent, it should not replace regular brushing and flossing.
2. Thick Tongue Coating and Bad Breath: A thick coating on the tongue is often a sign of poor oral hygiene, dehydration, or an imbalance in the oral microbiome. Even with diligent brushing, the tongue can quickly develop a coating again, especially if there are underlying issues such as dry mouth or certain dietary habits. To improve this, consider using a tongue scraper in addition to brushing your tongue. This can help remove the buildup more effectively. Additionally, staying hydrated is crucial, as a dry mouth can exacerbate bad breath. If your bad breath persists even after brushing, it may be worth consulting with a dentist or a specialist to rule out any underlying conditions such as gum disease or infections.

3. Dry Mouth Despite High Fluid Intake: Experiencing dry mouth despite consuming a significant amount of fluids can be perplexing. This condition, known as xerostomia, can be caused by various factors, including medications, certain medical conditions (like Sjögren's syndrome), or even lifestyle factors such as stress. It's important to note that not all fluids are equally hydrating; for instance, caffeinated beverages can contribute to dehydration. If you find that dairy products provide temporary relief, it may indicate that your saliva production is insufficient. You might want to explore using saliva substitutes or oral moisturizers, which can help alleviate the sensation of dryness. Additionally, chewing sugar-free gum or sucking on sugar-free candies can stimulate saliva production, which may help with both dry mouth and bad breath.

In summary, maintaining good oral hygiene is crucial for addressing your concerns. This includes regular brushing (at least twice a day), flossing, and using mouthwash effectively. If you continue to experience issues with bad breath, tongue coating, or dry mouth, it may be beneficial to consult with a dentist or an oral health specialist. They can provide tailored advice and check for any underlying conditions that may be contributing to your symptoms. Remember, oral health is an integral part of overall health, and addressing these issues can lead to significant improvements in your quality of life.

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