How to Get Rid of Bad Breath? Causes and Methods to Help Prevent Bad Breath

Bad breath, also known as halitosis, is one of the most common oral and dental health problems encountered in daily life. It can manifest in different ways, from temporary morning breath to breath odor that persists throughout the day. So, what causes bad breath and what can be done to prevent it?

In this article, while we share ways to eliminate bad breath, we will focus on the daily oral care routine, regular tooth brushing, tongue cleaning, and dietary habits instead of solutions that only temporarily mask the odor.

Scientific research shows that the majority of persistent bad breath is related to factors within the mouth. According to a systematic review published in the journal Oral Diseases in 2023, approximately 80–90% of bad breath cases originate from the oral cavity. The coating that forms on the tongue, periodontal diseases, and inadequate oral hygiene are cited as the primary factors.

What Causes Bad Breath?

There is no single cause for bad breath. While some consumed foods can temporarily alter breath odor, persistent bad breath is mostly related to conditions inside the mouth.

Bacteria in the mouth can break down food debris, saliva components, and proteins. In this process, malodorous compounds, especially those called volatile sulfur compounds (VSC), can emerge. Hydrogen sulfide and methyl mercaptan are among the most prominent of these. The tongue surface and periodontal pockets are considered important regions for the bacteria associated with the formation of these compounds.

Therefore, common causes of bad breath include:

·        Inadequate oral hygiene

·        Coating accumulated on the tongue

·        Gum and periodontal problems

·        Dry mouth

·        Certain dietary habits
may be present.

Does Regular Tooth Brushing Help Prevent Bad Breath?

Yes; however, scientific data shows that brushing alone may not be sufficient. What is important in controlling bad breath is to reduce, as a whole, the intraoral accumulations that contribute to the formation of the odor.

• • • Tooth brushing is the fundamental step: Regular brushing helps remove microbial plaque from tooth surfaces, supporting the maintenance of oral hygiene.
      
      
    • Tongue cleaning can provide additional benefits: In a systematic review and meta-analysis comparing tooth brushing versus tooth brushing + tongue cleaning, a greater reduction in volatile sulfur compounds (VSC) associated with bad breath was detected when tongue cleaning was added to the routine.
      
      
    • Periodontal health is also important: In a systematic review, it was reported that in individuals with periodontal disease, professional tooth cleaning or non-surgical periodontal treatment applied along with oral hygiene education was associated with a reduction in bad breath and VSC levels.
      
      
    • One should not rely on a single method: The Cochrane review states that the overall quality of evidence from studies on different practices for bad breath is low or very low, and there is not enough strong evidence to say which method is definitively superior to another.

Therefore, while tooth brushing forms the foundation of care aimed at controlling bad breath, it should not be seen as a standalone solution. A regular oral care routine that includes cleaning between the teeth and the tongue provides a more holistic approach.

Why Is Tongue Cleaning Important Alongside Tooth Brushing?

If you continue to experience bad breath even though you brush your teeth regularly, one of the points you may be overlooking could be the tongue surface.

In a systematic review and meta-analysis of randomized clinical trials comparing tooth brushing alone to tooth brushing combined with tongue cleaning, it was reported that adding tongue cleaning to tooth brushing is more effective in reducing volatile sulfur compounds associated with bad breath and the coating on the tongue compared to tooth brushing alone.

Another systematic review also states that mechanical tongue cleaning can have a positive effect on breath odor and tongue coating, but that more research is needed regarding its long-term effects on chronic halitosis.

Therefore, one of the possible answers to the question "I brush my teeth, but why does my mouth smell?" might be that oral care does not sufficiently cover the tongue surface.

What Can Be Paid Attention to in Nutrition to Prevent Bad Breath?

To help prevent bad breath, the following points can be considered in daily dietary habits:

·       Consuming enough fluids throughout the day: Saliva is one of the natural cleansing mechanisms in the mouth, and dry mouth is considered one of the factors associated with bad breath.

·       Paying attention not to stay hungry for long periods: Staying hungry for a long time or significantly changing meal patterns can affect breath odor in some individuals.

·       Considering the effect of strongly flavored foods: Aromatic foods such as onion and garlic can cause temporary breath odor.

·       Not neglecting oral care after meals: Regular cleaning of teeth and between teeth after eating helps to reduce the amount of time food remnants remain in the mouth.

In short, dietary habits that help reduce bad breath should be considered not just by consuming a specific food, but along with adequate fluid intake, a balanced diet, and regular oral care.

Why Might Bad Breath Be Worse in the Mornings?

It is quite common for your breath to be different when you wake up in the morning than it is during the day.

Decreased saliva flow during sleep can lead to a reduction in the natural cleansing mechanism in the mouth. In this environment, odor-causing compounds can become more pronounced as a result of bacterial activity on the tongue and inside the mouth.

Therefore, a regular oral care routine maintained morning and night is important not only for the teeth to look clean but also for supporting breath freshness.

What Should a Daily Oral Care Routine Look Like to Prevent Bad Breath?

It is not possible to provide a single solution that applies to everyone for the question "How does persistent bad breath go away?". However, the fundamental approach in controlling odor originating from the mouth is the regular removal of bacterial accumulation and residues inside the mouth. In a daily oral care routine:

·       Brushing teeth regularly and meticulously

·       Cleaning between teeth using appropriate methods

·       Gently removing the layer on the tongue surface

·       Maintaining oral care regularly

can be addressed together.

What matters here is not just how often you brush, but how thoroughly and consistently you perform your oral care.

Mouthwashes can be supportive in some cases; however, masking bad breath only with strongly scented products does not eliminate the underlying cause of the odor. Although systematic studies have shown that some mouthwashes with active ingredients can reduce bad breath, they should not be considered a substitute for mechanical oral care.

What Should Be Done If Bad Breath Persists?

If bad breath persists for a long time despite regular oral care, it is important to determine the source rather than relying on temporary solutions meant to mask the odor. The approach to follow at this point can be summarized as follows:

• • Review your oral care routine: Ensure that in addition to your teeth, you are regularly cleaning between teeth and especially the tongue surface.
    
    
  • Consider dry mouth: Insufficient saliva flow can reduce the natural cleaning mechanism in the mouth. Persistent dry mouth is also a condition that should be evaluated.
    
    
  • Do not delay a dental check-up: In cases of persistent bad breath, teeth, gums, tongue surface, periodontal tissues, and saliva flow can be evaluated together. A professional periodontal assessment can be performed if necessary.
    
    
  • Non-oral causes can be investigated: If an intraoral cause is not identified during a dental examination, referrals can be made to relevant medical specialties regarding ear-nose-throat, respiratory system, or, more rarely, systemic causes.

The important thing is to target the source, not the odor itself. Prolonged bad breath should not be considered a disease in itself; it should be treated as a sign that can be related to various intraoral or extraoral conditions.

Regular tooth brushing and proper nutritional habits to prevent bad breath are parts of a sustainable daily care philosophy rather than temporary solutions.
Nutritional habits are also an important complement to this care routine. Drinking enough water throughout the day, avoiding long periods of fasting, and being aware of foods that can temporarily affect breath odor can support the protection of the oral environment. Especially considering that dry mouth is one of the factors associated with bad breath, adequate fluid consumption is a habit that should not be overlooked in your daily routine.