Dental Concerns
Bad Breath Treatment London | Halitosis Cure | South Kensington
Expert bad breath (halitosis) treatment in South Kensington. New Patient Exam £30. Diagnose the root cause and eliminate it permanently. Members: 50% OFF. Book today.
Eliminate Bad Breath Permanently
Bad breath affects 1 in 4 adults regularly. Don't let it compromise your confidence or relationships. We diagnose the root cause and provide targeted treatment—not just temporary masking.
Comprehensive oral examination with halitosis screening
Professional hygiene therapy to remove odour-causing bacteria
Full periodontal assessment + deep cleaning + AirFlow™ + treatment plan
Understanding Bad Breath: More Than Just a Social Concern
Halitosis—the clinical term for chronic bad breath—is one of the most common yet least discussed dental concerns. It affects an estimated 25% of the global population to some degree, and in our South Kensington practice, we treat patients from all walks of life who have struggled with this condition for years, often in silence.
The social and psychological impact of bad breath should not be underestimated. It affects professional interactions, intimate relationships, and self-confidence. Many patients report avoiding close conversations, covering their mouths when speaking, or using excessive amounts of mouthwash and mints—temporary solutions that often mask rather than resolve the underlying problem.
At Cosmetic Dentistry Clinic, we approach halitosis as a medical condition requiring proper diagnosis and targeted treatment. Bad breath is almost always a symptom of an underlying issue, and our role is to identify and address that root cause—not simply to mask it.
The Science of Oral Malodour
To understand how to treat bad breath effectively, one must first understand its origins. The primary cause of halitosis in approximately 85-90% of cases originates within the oral cavity itself. The culprits are volatile sulphur compounds (VSCs)—particularly hydrogen sulphide and methyl mercaptan—produced by anaerobic bacteria as they break down proteins in the mouth.
These bacteria thrive in specific environments:
The Tongue Surface
The posterior dorsum of the tongue is covered in papillae—tiny projections that create an ideal harbour for bacteria. Food debris, dead cells, and bacteria accumulate here, producing the characteristic sulphurous odour.
Periodontal Pockets
When gum disease develops, pockets form between the teeth and gums. These deep crevices become reservoirs of anaerobic bacteria, producing persistent malodour that brushing cannot reach.
Interdental Spaces
The spaces between teeth trap food particles that decompose over time. Without proper interdental cleaning, these areas become breeding grounds for odour-causing bacteria.
Common Causes of Bad Breath
Poor Oral Hygiene
Inadequate brushing and flossing allows plaque to accumulate on teeth, gums, and the tongue. This bacterial biofilm produces VSCs continuously. A professional deep clean (£49) removes this accumulated biofilm and restores oral freshness.
Gum Disease (Periodontitis)
Chronic gum inflammation and deep periodontal pockets are among the most significant causes of persistent halitosis. The bacteria that cause periodontal disease are particularly potent producers of malodorous compounds. Treatment starts from £425.
Tooth Decay
Cavities and dental decay create spaces where bacteria and food debris accumulate. The decomposition process produces unpleasant odours. Modern white fillings (from £195) restore tooth integrity and eliminate these bacterial reservoirs.
Dry Mouth (Xerostomia)
Saliva is nature's mouthwash—it continuously washes away food particles and bacteria. Reduced saliva flow (from medications, mouth breathing, or medical conditions) allows bacteria to proliferate. We assess salivary function as part of our halitosis evaluation.
Tongue Coating
A thick white or yellow coating on the tongue is often the primary source of bad breath. The tongue's rough surface traps bacteria, dead cells, and food debris. Our hygienists provide instruction on proper tongue cleaning techniques.
Systemic Conditions
In approximately 10-15% of cases, halitosis originates from outside the mouth—sinusitis, tonsil stones, gastroesophageal reflux, diabetes, or liver/kidney conditions. When oral causes are ruled out, we coordinate with medical specialists.
Our Diagnostic Approach
At Cosmetic Dentistry Clinic, we do not guess at the cause of your bad breath—we investigate it systematically. Our halitosis assessment protocol includes:
Comprehensive Oral Examination
We examine every tooth surface, restoration, and soft tissue. We check for signs of decay, gum disease, oral lesions, and any other pathology that could contribute to malodour.
Periodontal Assessment
Using a periodontal probe, we measure pocket depths around every tooth. Pockets deeper than 3mm indicate gum disease and are often the source of chronic halitosis.
Tongue Examination
We assess the tongue coating, looking at its colour, thickness, and distribution. The posterior third of the tongue is the most common site of bacterial accumulation.
Salivary Function Assessment
We evaluate saliva quality and quantity. Thick, ropy saliva or visible dry mouth symptoms may indicate xerostomia requiring specific management.
Treatment Protocols
Once we have identified the cause (or causes) of your halitosis, we develop a targeted treatment plan. This may include one or more of the following interventions:
Professional Hygiene Therapy
Our dental hygiene service is the foundation of halitosis treatment. Starting at just £49, our skilled hygienists remove plaque, calculus, and bacterial biofilm from all tooth surfaces. For enhanced results, our AirFlow™ treatment (+£52) uses a warm jet of water and fine erythritol powder to reach areas that conventional scaling cannot.
Periodontal Treatment
For patients with gum disease, our periodontal care programme provides deep cleaning below the gum line, removing the bacterial colonies that cause both gum disease and halitosis. Treatment starts from £425 and includes ongoing maintenance to ensure lasting results.
Restorative Dentistry
If decayed teeth, failing restorations, or gaps between teeth are contributing to your bad breath, we provide comprehensive restorative solutions:
- White Fillings from £195 – to treat cavities and replace old, leaking amalgam fillings
- Dental Crowns from £995 – to restore severely damaged teeth
- Dental Bridges from £2,500 – to replace missing teeth that create food traps
- Dental Implants from £2,800 – the gold standard for replacing missing teeth
Home Care Optimisation
We provide personalised instruction on:
- Proper brushing technique (modified Bass technique)
- Interdental cleaning with floss or interdental brushes
- Tongue cleaning—the single most effective home measure for reducing halitosis
- Appropriate mouthwash selection (alcohol-free formulations to avoid dry mouth)
- Hydration strategies to maintain healthy saliva flow
What Our Patients Say
"I had the absolute pleasure of being seen by Layla... Layla provided an exceptional hygiene service — thorough, gentle, and attentive to every detail. I left feeling refreshed, confident, and incredibly satisfied."
— Sadia Jama
"Had a great experience with Jack... He was professional, friendly, and made me feel completely at ease. My teeth have never felt so fresh and smooth. Gentle yet thorough."
— Dee Dee
Why Mouthwash Alone Doesn't Work
Many patients arrive at our practice having spent considerable money on mouthwashes, breath sprays, and mints. While these products can temporarily mask odour, they do not address the underlying cause. In fact, alcohol-based mouthwashes can actually worsen halitosis by drying out the mouth and reducing saliva flow.
True resolution of halitosis requires:
- Professional diagnosis to identify the source
- Removal of bacterial reservoirs through professional cleaning
- Treatment of underlying conditions (gum disease, decay, dry mouth)
- Optimised home care routine
- Regular maintenance to prevent recurrence
Clinical Governance & Trust
Your treatment is delivered within a framework of the highest clinical standards. Cosmetic Dentistry Clinic is:
CQC Registered
Inspected and regulated by the Care Quality Commission
GDC Registered
All clinicians registered with the General Dental Council
HTM 01-05 Compliant
Exceeding all infection control standards
Frequently Asked Questions
How do I know if I have bad breath?
It can be difficult to smell your own breath due to olfactory adaptation. Common signs include: a white coating on your tongue, a bad taste in your mouth, people stepping back when you speak, or being offered mints frequently. The most reliable method is to ask a trusted friend or family member, or to visit us for a professional assessment.
Can bad breath be cured permanently?
In most cases, yes. Once the underlying cause is identified and treated, halitosis can be eliminated. However, ongoing maintenance (regular hygiene appointments, proper home care) is essential to prevent recurrence. Chronic conditions like dry mouth may require ongoing management.
How quickly will treatment work?
Many patients notice immediate improvement after their first professional cleaning. Complete resolution depends on the underlying cause—simple cases may resolve in one visit, while gum disease treatment may require several appointments over 2-3 months.
Is the consultation discreet?
Absolutely. We understand the sensitivity around this issue. All consultations are conducted in complete privacy, and our team treats this condition with the same professionalism as any other dental concern. You are not alone—halitosis is one of the most common conditions we treat.
What if the cause isn't in my mouth?
If our examination rules out oral causes, we will discuss potential extra-oral sources (sinus, tonsils, digestive system) and can provide referral letters to appropriate medical specialists. We work collaboratively to ensure you receive comprehensive care.
Take the First Step
Don't let bad breath affect your confidence another day. Book a confidential consultation and let us diagnose and treat the cause—not just mask the symptom.
New Patient Offer: £30 Exam | Members: 50% OFF Treatment
Cosmetic Dentistry Clinic
20 Old Brompton Road, South Kensington, London, SW7 3DL

Expert Insight
"We approach bad breath treatment london | halitosis cure | south kensington not just as a procedure, but as a pivotal restoration of self. Precision is our baseline; artistry is our signature."
— Dr. Yasha Y Shirazi
The Process
- 01.
Comprehensive Diagnostics & 3D Imaging.
- 02.
Bespoke Treatment Planning & Aesthetic Calibration.
- 03.
Precision Execution & Final Artistry.
Benefits
- Improved Facial Harmony
- Restored Function & Longevity
- Seamless, Natural Aesthetics
Client Voices
"We had an appointment with Dr. Yasha Shirazi, and he was absolutely wonderful... The clinic is new and fully renovated, offering a completely different level of service... far beyond what we typically experience in London."
"By far, the best dental procedure I have received. Clean place, welcoming reception staff. The doctor is nice, straightforward, clear, and concise. Could not ask for more."
"Amazing treatment. Receptionist is welcoming and kind. Jack did my treatment — super amazing. He explained everything in detail. I love my teeth after treatment. Thanks 😊"
"I had the absolute pleasure of being seen by Layla... Layla provided an exceptional hygiene service — thorough, gentle, and attentive to every detail. I left feeling refreshed, confident, and incredibly satisfied."
"Jack is a wonderful hygienist! I suffer from TMJD and usually struggle... but this visit was completely different. He put me at ease right away. For the first time in a long while, the cleaning didn’t hurt much at all."
"We were fortunate enough to be looked after by Jack... His professionalism and friendly manner were exceptional. If you are looking for an amazing, caring hygienist, we absolutely recommend Jack."
"We had an appointment with Dr. Yasha Shirazi, and he was absolutely wonderful... The clinic is new and fully renovated, offering a completely different level of service... far beyond what we typically experience in London."
"By far, the best dental procedure I have received. Clean place, welcoming reception staff. The doctor is nice, straightforward, clear, and concise. Could not ask for more."
"Amazing treatment. Receptionist is welcoming and kind. Jack did my treatment — super amazing. He explained everything in detail. I love my teeth after treatment. Thanks 😊"
"I had the absolute pleasure of being seen by Layla... Layla provided an exceptional hygiene service — thorough, gentle, and attentive to every detail. I left feeling refreshed, confident, and incredibly satisfied."
"Jack is a wonderful hygienist! I suffer from TMJD and usually struggle... but this visit was completely different. He put me at ease right away. For the first time in a long while, the cleaning didn’t hurt much at all."
"We were fortunate enough to be looked after by Jack... His professionalism and friendly manner were exceptional. If you are looking for an amazing, caring hygienist, we absolutely recommend Jack."
"We had an appointment with Dr. Yasha Shirazi, and he was absolutely wonderful... The clinic is new and fully renovated, offering a completely different level of service... far beyond what we typically experience in London."
"By far, the best dental procedure I have received. Clean place, welcoming reception staff. The doctor is nice, straightforward, clear, and concise. Could not ask for more."
"Amazing treatment. Receptionist is welcoming and kind. Jack did my treatment — super amazing. He explained everything in detail. I love my teeth after treatment. Thanks 😊"
"I had the absolute pleasure of being seen by Layla... Layla provided an exceptional hygiene service — thorough, gentle, and attentive to every detail. I left feeling refreshed, confident, and incredibly satisfied."
"Jack is a wonderful hygienist! I suffer from TMJD and usually struggle... but this visit was completely different. He put me at ease right away. For the first time in a long while, the cleaning didn’t hurt much at all."
"We were fortunate enough to be looked after by Jack... His professionalism and friendly manner were exceptional. If you are looking for an amazing, caring hygienist, we absolutely recommend Jack."
Location
Cosmetic Dentistry Clinic20 Old Brompton Road
South Kensington
London, SW7 3DL
Located 2 minutes walk from South Kensington Station.
Opening Hours
- Mon - Wed09:00 - 18:00
- Thu09:00 - 20:00
- Fri09:00 - 17:00
- Sat10:00 - 16:00
- SunClosed
Uncompromising Standards
True artistry requires a foundation of absolute safety. Our practice operates under the strictest clinical governance, ensuring that your journey is as safe as it is transformative. We are fully regulated, transparent, and dedicated to the highest tenets of medical ethics.
Begin Your Journey
Private consultations available in South Kensington. Join our membership for exclusive courtesies.

