• March 15, 2024
  • Dr. Catherine-Anne Walsh

Beyond Morning Breath: Understanding the Causes

Bad breath, or halitosis, is a common concern that affects a significant portion of the population at some point in their lives. It’s more than just a personal inconvenience; it carries a social stigma that can impact one’s confidence and interpersonal relationships. Understanding what causes bad breath is the first step in addressing the issue, and it’s crucial to explore both the common and less obvious factors contributing to it.

Understanding the Science Behind Bad Breath

The mouth is a battleground for bacteria, and when they decompose food particles, particularly proteins, they release foul-smelling gases. This biological process is natural, but when exacerbated by conditions like dry mouth, which reduces the flow of saliva and fails to keep the mouth moist, the situation worsens.

what causes bad breath

What causes bad breath? Often, it’s the bacteria lurking in your mouth that are to blame.

Common Causes of Bad Breath

Bad breath, a common issue affecting many, can stem from a variety of sources. While some causes are directly related to oral hygiene practices, others might be linked to medical conditions or lifestyle choices. Common causes include:

  • Poor oral hygiene
  • Gum disease
  • Dry mouth
  • Certain foods
  • Smoking and alcohol
  • Medical conditions (e.g., diabetes, kidney disease)
  • Infections in the throat or respiratory tract
  • Poorly fitted dental appliances
  • Infrequent eating or dieting
  • Morning breath

Oral Hygiene and Bad Breath

Maintaining good oral hygiene is pivotal in the fight against bad breath. It involves a comprehensive approach to dental care, focusing on removing trapped food and plaque, a sticky film of bacteria that forms on the teeth and gums.

The Role of Oral Hygiene in Preventing Bad Breath

Good oral hygiene practices are essential in preventing bad breath. Regular brushing and flossing remove trapped food and plaque, while using a tongue scraper can address a coated tongue, a common culprit behind morning breath.

These practices, along with rinsing with an antibacterial mouthwash, can significantly reduce the bacterial load in the mouth and, consequently, the occurrence of bad breath.

Dental Visits: Your First Line of Defence

Visiting a dentist regularly is crucial for maintaining optimal oral health and preventing conditions that can lead to bad breath. During these visits, dental professionals can identify and treat gum disease early, provide professional cleaning to remove plaque and tartar, and offer advice on personal oral hygiene practices.

Regular check-ups can also catch potential problems like dry mouth or issues with existing dental appliances, such as mouth guards, that might contribute to bad breath.

what causes bad breath

What causes bad breath? Surprisingly, your diet plays a significant role alongside oral hygiene.

Solutions for Bad Breath

Combating bad breath involves a multi-faceted approach that includes daily oral care routines, dietary adjustments, and, when necessary, professional dental treatments.

Daily Routines to Keep Bad Breath at Bay

Incorporating thorough dental care routines into your daily life is fundamental to fight bad breath. Brushing your teeth twice a day, flossing to remove food particles between teeth, and using a tongue scraper can significantly reduce bacteria in the mouth. Additionally, staying hydrated to ensure enough saliva production can help keep your mouth moist and further reduce bad breath.

Diet and Lifestyle Changes

Modifying your diet and lifestyle can have a significant impact on oral health and bad breath. Eating healthy foods that stimulate saliva flow, reducing the intake of odorous foods like garlic and onions, and avoiding tobacco and alcohol can all contribute to fresher breath. Keeping the mouth moist with water or artificial saliva products, especially for those prone to dry mouth, is also beneficial.

Professional Dental Treatments

For those struggling with persistent bad breath, professional dental treatments may be necessary. This could include deep cleaning to remove plaque and tartar, treatment for gum disease, or the repair of faulty dental work that may trap food particles. In some cases, we may recommend special medicated mouthwashes that go beyond over-the-counter solutions.

How to contact us at our Sydney CBD clinic

Day Time +61292333399
After Hours 0406986909
Email Us: info@thedentist.net.au

1/70 Pitt St, Sydney NSW 2000, Australia
Mon & Thu: 8am-7pm
Tue, Wed & Fri: 8am-5pm
Saturday: 8am-1pm
Sunday: closed



Below you can find more FAQs about what causes bad breath but if you need any more information, please don’t hesitate to contact us. Or you can use the online form to book an appointment.

What is the main cause of bad breath?

Bacteria present in the mouth breaking down lingering food remnants is the leading cause of bad breath. This process releases unpleasant odours. Contributing factors include poor dental hygiene, periodontal disease, and insufficient saliva production to keep the mouth moist.

When should I see my dentist?

You should schedule a visit to your dentist if you experience persistent bad breath despite adhering to a rigorous oral hygiene routine. Your dentist can assess for conditions such as periodontal disease and dry mouth, which might be at the heart of the issue.

Why does my breath smell even after brushing?

If your breath continues to smell even after you brush your teeth, it may be a sign of deeper issues like periodontal disease, food particles becoming trapped in hard-to-reach areas, or a lack of enough saliva. A dental professional can help identify and treat the underlying cause.

Dr. Catherine-Anne Walsh
About The Author

Dr. Catherine-Anne Walsh

Catherine-Anne is a New Zealand-qualified dentist. She holds a Masters Degree in Public Health from Sydney University and she has a broad range of experiences from working in both the public and private sector.


Keep me updated with news and knowledge
from The Dentist At 70 Pitt Street