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Bad Breath (Halitosis): Causes, Treatment, and Prevention

Dec 16, 2025
Bad breath (halitosis) is common, but chronic bad breath may signal an oral health issue. At Dr. David’s Family Dentistry in Montebello, we help identify the cause and restore fresh, healthy smiles with personalized dental care.

What Causes Bad Breath?

Bad breath typically originates in the mouth, though it can sometimes be linked to medical conditions. Common causes include:

1. Poor Oral Hygiene

When plaque and food particles are not properly removed, bacteria build up on the teeth, gums, and tongue—producing unpleasant odors.

2. Gum Disease

Gingivitis and periodontal disease are leading causes of chronic bad breath. Bacteria trapped in infected gum tissue release foul-smelling sulfur compounds.

3. Dry Mouth

Saliva helps cleanse the mouth and neutralize odor-causing bacteria. Dry mouth—often caused by medications, mouth breathing, or dehydration—can lead to bad breath.

4. Tongue Bacteria

The tongue’s surface can trap bacteria and debris. Without regular tongue cleaning, these bacteria can cause noticeable odor.

5. Food and Diet

Strong-smelling foods such as garlic, onions, and certain spices can temporarily cause bad breath. Low-carb or high-protein diets may also contribute.

6. Cavities and Dental Infections

Tooth decay, abscesses, or failing dental restorations can harbor bacteria that lead to persistent bad breath.


How Is Bad Breath Treated?

Treatment for bad breath depends on the underlying cause. At Dr. David's Family Dentistry in Montebello, we create personalized treatment plans that may include:

  • Professional dental cleanings to remove plaque and tartar

  • Gum disease treatment if periodontal issues are present

  • Treatment of cavities or dental infections

  • Recommendations for proper brushing, flossing, and tongue cleaning

  • Advice on managing dry mouth

In many cases, treating the dental issue resolves bad breath completely.


Tips to Prevent Bad Breath

Maintaining fresh breath starts with good oral hygiene and healthy habits:

  • Brush your teeth at least twice a day

  • Floss daily to remove trapped food particles

  • Clean your tongue regularly

  • Drink plenty of water

  • Avoid tobacco products

  • Schedule regular dental checkups and cleanings

Using mouthwash may help temporarily, but it does not replace proper dental care.


When Should You See a Dentist for Bad Breath?

If bad breath persists despite good oral hygiene, it’s time to see a dentist. Chronic halitosis may indicate gum disease or another oral health concern that requires professional care.

At Dr. David's Family Dentistry in Montebello, we take bad breath seriously and work with you to identify and treat the root cause—not just mask the symptoms.


Get Help for Bad Breath in Montebello

If you’re embarrassed by bad breath or concerned about your oral health, we’re here to help. Dr. David's Family Dentistry proudly serves patients in Montebello and surrounding areas with compassionate, comprehensive dental care.