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A Clinical Reference

Dental Library

The ArtSmiles Dental Library is an evidence-based reference covering a wide range of dental conditions, written for patients and the clinicians who refer them. Every entry is grounded in current clinical references and reviewed by the ArtSmiles team at Southport, Gold Coast.

Reviewed by Dr Cristian Dunker and the ArtSmiles clinical teamSouthport, Gold Coast

Prevention & Everyday Care

Looking after your mouth at home

Patient-friendly answers to the everyday questions about brushing, fluoride, bleeding gums and the home habits that actually shift your long-term oral health. Read these first, because most mouth problems are easier to prevent than to treat.

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Ulcers, Sores & Blisters

Mouth sores that heal, and the ones that shouldn't be ignored

From everyday canker sores and trauma to autoimmune blistering diseases and the non-healing ulcer that can signal mouth cancer. How to tell the routine from the serious.

Angular Cheilitis: sore, cracked corners of the mouth — what causes it and how to settle it

Angular cheilitis is the red, cracked sores at the corners of the mouth — here's what causes it and how to settle it. Reviewed by Dr Cristian Dunker.

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Bullous Pemphigoid: when tense skin blisters are the main story (and the mouth sometimes joins in)

Bullous pemphigoid is an autoimmune blistering disease of elderly skin that occasionally involves the mouth. Learn how it differs from pemphigus and how it's treated.

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Chemical and Thermal Burns of the Mouth: pizza burns, aspirin burns and other accidents

Oral burns from hot food, aspirin or chemicals usually heal in 7-14 days. Here is how to recognise them and when to seek dental care. Reviewed by Dr Cristian Dunker.

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Contact Stomatitis and Oral Allergies — Why Your Mouth Reacts to Toothpaste, Gum or Dental Materials

Contact stomatitis is an allergic reaction in the mouth to dental materials, cosmetics or foods. Learn the triggers, how it's diagnosed, and how removing the cause clears it.

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Deep Fungal Infections of the Mouth

Deep fungal infections produce chronic mouth ulcers that look like oral cancer. Learn the organisms, who's at risk, and the systemic antifungal treatments that work.

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Drug-Induced Oral Ulceration: when a medication causes mouth sores

Drug-induced oral ulceration happens when a medication triggers mouth sores. Here's how it looks, the common culprits, and when to see a dentist. Reviewed by Dr Cristian Dunker.

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Erythema Multiforme: when sudden mouth ulcers and crusted lips appear together

Erythema multiforme produces sudden lip crusting, painful mouth ulcers and target skin lesions. Learn the triggers (herpes, drugs), diagnosis and how it's treated.

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Mucous Membrane Pemphigoid: when the gums and mouth lining blister and erode

Mucous membrane pemphigoid is an autoimmune blistering disease that scars the gums and eyes. Learn the oral signs, why ophthalmology is involved, and treatment options.

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Oral Manifestations of Crohn's Disease: how the mouth can show what the gut is doing

Crohn's disease causes mouth ulcers, lip swelling and cobblestoning. Learn the oral signs that sometimes appear before bowel symptoms and how the two are linked.

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Oral Squamous Cell Carcinoma: the mouth cancer your dentist is looking for

Oral squamous cell carcinoma is the most common mouth cancer. Learn the warning signs, risk factors and why a non-healing ulcer should never be ignored.

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Oral Tuberculosis: when a chronic mouth ulcer points to a lung infection

Oral tuberculosis is a rare cause of chronic mouth ulcers, usually secondary to lung TB. Learn risk factors, diagnostic steps and the six-month antibiotic regimen.

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Pemphigus Vegetans: the warty, vegetating variant of pemphigus

Pemphigus vegetans is a rare variant of pemphigus vulgaris that produces warty, vegetating plaques in skin folds and at the oral commissures. Reviewed by Dr Cristian Dunker.

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Pemphigus Vulgaris: when the immune system attacks the lining of the mouth

Pemphigus vulgaris is a rare autoimmune disease that often starts in the mouth as ragged, painful ulcers. Reviewed by Dr Cristian Dunker.

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Radiation Mucositis: when head and neck radiotherapy makes the mouth raw

Radiation mucositis is painful ulceration of the mouth during head-and-neck radiotherapy. Learn prevention strategies, symptom relief and long-term oral effects.

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Recurrent Aphthous Stomatitis: when canker sores keep coming back

Recurrent aphthous stomatitis causes painful canker sores in the mouth. Learn the three types, common triggers, and when to investigate for systemic disease.

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Traumatic Ulcer: when a sore in your mouth doesn't heal

Traumatic ulcers are common mouth sores from sharp teeth, dentures or biting. Learn how they're managed and the three-week rule that helps catch oral cancer.

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Decay, Pulp & Infection

From a cavity to a deep infection

Tooth decay and everything it can lead to: sensitivity, a dying nerve, abscesses, and even infection of the jaw bone. How each stage is caught and treated before it spreads.

Condensing Osteitis (Focal Sclerosing Osteomyelitis)

Condensing osteitis is dense bone on a dental X-ray, usually around a tooth with chronic pulp inflammation. Here's why it forms and how it's treated.

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Dental Abscess and Cellulitis: When a Tooth Infection Spreads

A dental abscess can spread into the face and neck as cellulitis. Here's how to recognise the warning signs and when it becomes an emergency.

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Dental Caries (Tooth Decay): Why teeth break down and how to stop it

Dental caries (tooth decay) is the most common chronic disease worldwide. Here's how it forms, the early signs and how it's prevented and treated.

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Irreversible Pulpitis

Irreversible pulpitis is the spontaneous, lingering tooth pain stage of decay. Here's how to recognise it and the urgent treatment options.

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Osteomyelitis of the Jaw

Osteomyelitis of the jaw is a deep bone infection, usually following a dental abscess or extraction. Here's how it's recognised and treated.

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Periapical Abscess: Causes, Symptoms, and Treatment

A periapical abscess is a pus collection at the tip of a tooth root, usually from a deeply decayed or dead tooth. Here's how it's recognised and treated.

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Periapical Granuloma: What Is That Spot at the Tip of My Tooth Root?

A periapical granuloma is a small lesion at the tip of a tooth root from chronic pulp infection, usually painless and revealed on X-ray. Here's how it's treated.

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Phoenix Abscess

A phoenix abscess is a sudden flare-up of a previously quiet periapical lesion. Here's why it happens and how it's treated.

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Reversible Pulpitis

Reversible pulpitis is short, sharp tooth sensitivity that fades once the trigger is removed. Here's how it differs from irreversible pulpitis and how it's treated.

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What is pulp necrosis?

Pulp necrosis is the death of a tooth's inner nerve from decay, trauma or a crack. Here's how it's recognised, the discolouration it causes and how it's treated.

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Gum Health

The silent disease that loses teeth

Bleeding gums, gum disease, gum abscesses, and the overgrowth and infections that affect the tissue around your teeth. Usually painless until the damage is already done.

Acute Necrotising Ulcerative Gingivitis (ANUG): Causes, Symptoms and Treatment

ANUG (acute necrotising ulcerative gingivitis) is a painful gum infection often linked to smoking, stress and poor hygiene. Here's how to recognise and treat it.

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Aggressive Periodontitis (Stage III/IV Grade C Periodontitis)

Aggressive periodontitis is a rapidly progressing form of gum disease that often runs in families. Here's how to recognise the early signs and treatment options.

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Chronic Periodontitis

Chronic periodontitis is a long-term inflammatory gum disease that slowly destroys the bone holding teeth in place. Here's how to recognise and control it.

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Desquamative Gingivitis

Desquamative gingivitis is red, peeling, painful gums, usually a sign of lichen planus, pemphigoid or pemphigus. Here's how it's diagnosed and managed.

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Drug-Induced Gingival Overgrowth

Some blood pressure, transplant and anti-epileptic medications cause the gums to enlarge. Here's how to recognise the change and manage it without stopping treatment.

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Gingivitis: Why Your Gums Bleed When You Brush

Gingivitis is the early, reversible stage of gum disease. Here's how to spot the signs and the steps that get gums back to healthy in one to two weeks.

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Necrotising Ulcerative Periodontitis (NUP)

Necrotising ulcerative periodontitis is a severe gum and bone infection usually linked to immune suppression. Here's how to recognise and manage it.

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Pericoronitis: gum infection around a partially erupted wisdom tooth

Pericoronitis is gum inflammation around an erupting wisdom tooth. Here's how to recognise the flare-up, what helps at home and when removal is the answer.

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What Is a Periodontal Abscess?

A periodontal abscess is a pus collection from gum disease in a deep gum pocket. Here's how it differs from a tooth abscess and how it's treated.

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Tooth Structure & Wear

When the tooth itself is worn or flawed

Grinding and acid erosion, cracks, root resorption, and the inherited enamel and dentine defects that leave some teeth weak from the start. The slow damage most people miss until it becomes structural.

Amelogenesis Imperfecta: When enamel doesn't form properly

Amelogenesis imperfecta is a hereditary defect of tooth enamel that produces thin, pitted or discoloured teeth from the time they erupt. Reviewed by Dr Cristian Dunker.

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Cracked Tooth Syndrome: Why does my tooth hurt when I bite?

A cracked tooth often produces sharp pain on biting and sensitivity to cold, even when no crack is visible. Learn how dentists find and treat it. Reviewed by Dr Cristian Dunker.

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Dental Fluorosis (and Enamel Hypoplasia): Mottled enamel explained

Dental fluorosis is white flecking or brown staining of enamel from excess childhood fluoride. Learn how it's diagnosed and the cosmetic treatments that work.

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Dentin Dysplasia

Dentin dysplasia is a rare inherited disorder that gives teeth short roots or odd pulp shapes. Learn the types, diagnostic x-ray clues and long-term management.

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Dentinogenesis Imperfecta: Hereditary opalescent dentine

Dentinogenesis imperfecta gives teeth a translucent blue-grey colour and weakens them. Learn its types, link to brittle bone disease, and lifelong dental care.

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Enamel Hypoplasia: When teeth form with thin, pitted or marked enamel

Enamel hypoplasia is a permanent enamel defect from childhood illness or nutritional issues. Learn the causes, how it's diagnosed and the restorative options.

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External Tooth Resorption: When a root dissolves from the outside

External tooth resorption silently dissolves tooth structure from the outside. Learn the trauma and orthodontic triggers and how dentists diagnose and treat it.

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Internal Tooth Resorption (Pink Tooth of Mummery): When a tooth dissolves from within

Internal tooth resorption is when the dentine inside a tooth dissolves from within. It is often silent until a pink spot appears or an X-ray finds it. Reviewed by Dr Cristian Dunker.

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Tooth Wear (Attrition, Erosion, Abrasion and Abfraction): The four causes of tooth surface loss

Tooth wear covers attrition, erosion, abrasion and abfraction — four ways the surface of teeth can be lost over time. Reviewed by Dr Cristian Dunker.

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Lumps, Bumps & Cysts

Growths and swellings worth a second look

Soft lumps, bony lumps, and the cysts that form quietly inside the jaw. What is harmless, what is not, and when a lump needs removing or a biopsy.

Calcifying Odontogenic Cyst (Gorlin Cyst): A rare jaw lesion explained

A calcifying odontogenic cyst (Gorlin cyst) is a rare jaw lesion showing a mixed shadow on X-ray. Here's how it's diagnosed and treated.

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Dentigerous Cyst: A fluid-filled sac around an unerupted tooth

A dentigerous cyst is a fluid-filled sac around the crown of an unerupted tooth, most often a wisdom tooth. Here's how it's found and treated.

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Epulis Fissuratum

Epulis fissuratum is overgrown gum tissue that forms where a denture rubs. Here's why it happens, how it's treated, and how to prevent it coming back.

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Fordyce Spots (Fordyce Granules)

Fordyce spots are tiny yellow-white bumps in the mouth, a normal anatomical variant present in most adults. Here's why they appear and why they're harmless.

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Gingival Cyst (Adult and Newborn): Two harmless gum cysts explained

Gingival cysts are harmless. In newborns they appear as whitish nodules and resolve on their own; in adults they form a small dome-shaped lump that's easily removed.

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HPV Oral Lesions: Papillomas, warts and condylomas in the mouth

Oral HPV can cause harmless warty lumps including squamous papillomas, common warts and condylomas. Here's how they're recognised and treated.

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Lateral Periodontal Cyst: A developmental cyst beside a vital tooth

A lateral periodontal cyst is a rare benign jaw cyst found beside a tooth root on X-ray. Here's how it's identified, treated and followed up.

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Lipoma in the Mouth: Causes, Diagnosis and Treatment

Oral lipomas are benign fatty lumps inside the mouth. Here's how they look, what causes them, and when to see a dentist.

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Ludwig's Angina

Ludwig's angina is a serious, rapidly spreading neck infection from a dental source. Recognise the warning signs early and seek urgent care.

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Mucocele: What Is That Bluish Bubble on Your Lip?

A mucocele is a soft, bluish bump on the lip from a damaged salivary gland. Here's what causes it and how it's treated. Reviewed by Dr Cristian Dunker.

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Odontogenic Keratocyst

An odontogenic keratocyst (OKC) is a benign jaw cyst with a higher chance of recurrence than most. Here's how it's diagnosed, treated and followed up.

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Pyogenic Granuloma

A pyogenic granuloma is a benign red lump that bleeds easily, often on the gum and common in pregnancy. Here's why it forms and how it's treated.

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Ranula: A soft bluish swelling in the floor of the mouth

A ranula is a soft, often bluish swelling in the floor of the mouth from the sublingual salivary gland. Learn how it is diagnosed and treated. Reviewed by Dr Cristian Dunker.

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Residual Cyst: A leftover dental cyst explained

A residual cyst forms at the site of a tooth removed years ago, when its cyst lining was not fully cleared. Here's how it's found and treated.

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Tori and Exostoses: What Are These Bony Lumps in My Mouth?

Tori and exostoses are harmless bony lumps in the mouth, often on the palate or lower jaw. Here's why they form and when they need treatment.

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Traumatic Fibroma (Fibrous Epulis): The most common oral mouth lump

A traumatic fibroma is a firm pink lump in the mouth from cheek-biting or a rough denture edge. Here's how it forms and how it's removed.

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Traumatic Neuroma

A traumatic neuroma is a benign but tender nerve overgrowth that forms after an injury or surgery. Here's why it hurts and how it's removed.

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White & Red Patches

Patches that are harmless, and patches that need watching

White, red, and mixed patches on the cheek, tongue, palate, or floor of the mouth. From thrush and harmless friction marks to the pre-cancerous changes that need a biopsy.

Chronic Hyperplastic Candidiasis (Candidal Leukoplakia): A stubborn white patch

Chronic hyperplastic candidiasis is a persistent white patch from Candida infection, often linked to smoking. Here's how it's diagnosed and treated.

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Denture stomatitis: why does the mucosa under my denture look red?

Denture stomatitis is a painless red patch under the denture from Candida. Here's how to clear it with hygiene, antifungal care and night-time removal.

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Erythematous Candidiasis: the red, sore form of oral thrush

Erythematous candidiasis is a red, often sore form of oral Candida infection, common after antibiotics or inhaled steroids. Here's how to recognise and clear it.

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Erythroplakia: A velvety red patch that needs urgent assessment

Erythroplakia is a velvety red patch in the mouth that almost always carries severe dysplasia or early cancer on biopsy. It needs urgent assessment. Reviewed by Dr Cristian Dunker.

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Frictional Keratosis: When Constant Rubbing Turns Mouth Tissue White

Frictional keratosis is a harmless white patch from chronic biting or rubbing. Here's how it differs from leukoplakia and when it needs a biopsy.

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Hairy Leukoplakia: An EBV white patch and a sign of weakened immunity

Hairy leukoplakia is a corrugated white tongue patch caused by Epstein-Barr virus, strongly linked to immune suppression. Here's what it signals and how it's managed.

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Leukoedema: A harmless milky-white change of the cheeks

Leukoedema is a harmless milky-white change in the cheek lining that fades on stretch. Here's how it's diagnosed and why no treatment is needed.

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Lichenoid Drug Reactions

Lichenoid drug reactions look like lichen planus but are triggered by medications or contact materials. Here's how to identify the trigger and clear the lesion.

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Linea Alba

Linea alba is a harmless white line on the cheek at the bite-line level. Here's why it forms and how it differs from leukoplakia or frictional keratosis.

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Morsicatio Buccarum (Cheek Chewing)

Morsicatio buccarum is a harmless white shredded patch on the cheek caused by chronic biting. Here's how to recognise the pattern and break the habit.

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Nicotinic Stomatitis (Smoker's Palate)

Nicotinic stomatitis is the smoker's palate pattern, white with red dots from inflamed salivary openings. Here's how quitting reverses it and when biopsy is needed.

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Oral Leukoplakia: A persistent white patch that needs assessment

Leukoplakia is a persistent white oral patch with a recognised cancer-change risk. Here's how to recognise it and why biopsy and follow-up matter.

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Oral Lichen Planus: lacy white patches and red patches that won't go away

Oral lichen planus is a chronic immune-mediated mouth condition with lacy white or red eroded patches. Here's how it's diagnosed, treated and monitored long-term.

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Oral Submucous Fibrosis

Oral submucous fibrosis is a pre-malignant scarring of the mouth linked to areca-nut chewing. Here's how to recognise it and slow progression.

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Proliferative Verrucous Leukoplakia (PVL): A high-risk oral white patch

Proliferative verrucous leukoplakia is a rare but high-risk form of oral leukoplakia with multiple persistent white patches that often progress to oral cancer. Reviewed by Dr Cristian Dunker.

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Pseudomembranous Candidiasis (Oral Thrush)

Pseudomembranous candidiasis (oral thrush) is a creamy white wipe-off Candida infection. Here's how to recognise triggers and clear it with antifungal treatment.

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Sublingual Keratosis

Sublingual keratosis is a white patch in a high-risk site of the mouth that needs biopsy. Here's why floor-of-mouth lesions are taken seriously.

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Verrucous Carcinoma: A Slow-Growing White Warty Lesion in the Mouth

Verrucous carcinoma is a slow-growing, warty oral cancer often mistaken for leukoplakia. Learn how biopsy confirms it and why surgery is the main treatment.

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White Sponge Naevus (Cannon's Disease): A benign inherited white change of the mouth

White sponge naevus is a rare inherited condition with harmless thick spongy white patches in the mouth. Here's how it's diagnosed and why no treatment is usually needed.

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Dark Spots & Pigmentation

Dark marks that are normal, and ones that are not

Brown, grey, blue, and black marks inside the mouth. Most are harmless tattoos or natural pigment, but a few, including melanoma, need a closer look.

Addisons Disease (Oral Pigmentation): When the mouth turns brown

Addison's disease can show up first as brown patches in the mouth. Here's why oral pigmentation matters and what your dentist will look for.

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Amalgam Tattoo: When amalgam particles stain the gum

Amalgam tattoos are harmless grey-black spots from dental amalgam particles. Learn how dentists tell them apart from more serious oral pigmentation.

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Drug-Induced Oral Pigmentation: When medications darken the mouth

Some medications such as minocycline, antimalarials and chemotherapy agents can cause brown or grey-blue oral pigmentation. Learn the patterns. Reviewed by Dr Cristian Dunker.

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Oral Malignant Melanoma: A rare but aggressive cancer of the mouth

Oral malignant melanoma is a rare, aggressive pigmented cancer of the mouth lining. Learn the warning signs and why early biopsy is critical.

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Oral Melanotic Macule (Focal Melanosis): A benign brown spot in the mouth

Melanotic macules are flat brown spots in the mouth caused by harmless extra melanin. Here's how dentists tell them apart from melanoma and when biopsy matters.

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Physiological Oral Pigmentation: A normal harmless brown colour of the gums

Physiological oral pigmentation is a normal symmetrical brown colour of the gums and mouth lining seen in many people with darker skin. It is harmless. Reviewed by Dr Cristian Dunker.

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Smoker's Melanosis

Smoker's melanosis is brown gum and cheek pigmentation linked to tobacco use. Learn how it differs from melanoma and how quitting affects the colour.

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Whole-Body Health

When the mouth signals something bigger

Diabetes, autoimmune disease, anaemia, pregnancy, and conditions of the heart, liver, kidneys and thyroid often leave their first clues in the mouth. The oral signs that point to your general health.

Diabetes and Your Mouth: How Diabetes Affects Oral Health

Diabetes makes gum disease, dry mouth and thrush worse — and bad gums make blood sugar harder to control. Learn how the two are linked and what to do.

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Lupus Erythematosus and the Mouth: What Oral Signs Mean

Lupus can produce painful palate ulcers and patches that mimic oral lichen planus. Learn the oral signs, what biopsy shows and how treatment is shared with rheumatology.

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Oral Manifestations of Anaemia: when low iron or B12 shows up in your mouth

Anaemia can show up in your mouth first — smooth sore tongue, pale lining, cracked corners. Here's what to watch for. Reviewed by Dr Cristian Dunker.

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Oral Manifestations of Cardiac Disease

Heart disease and dental health affect each other in important ways, from medication side-effects to bleeding risk and infective endocarditis. Coordinated care keeps you safe. Reviewed by Dr Cristian Dunker.

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Oral Manifestations of Coeliac Disease: when gluten sensitivity shows up in the mouth

Coeliac disease can show up first as enamel defects and mouth ulcers. Learn the oral clues, why dentists look for them and how the condition is diagnosed.

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Oral Manifestations of HIV and AIDS: When the mouth shows the disease

HIV and AIDS produce a range of oral conditions including candidiasis, hairy leukoplakia, Kaposi sarcoma and lymphoma. Learn the signs. Reviewed by Dr Cristian Dunker.

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Oral Manifestations of Liver Disease

Liver disease can show up in the mouth as jaundice, bleeding gums and lichen planus. Learn what dentists look for and why clotting tests matter before treatment.

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Oral Manifestations of Psoriasis: When a skin condition shows in the mouth

Psoriasis can show up in the mouth as geographic tongue, fissured tongue or rare oral plaques. Learn which oral findings are linked and how they're managed.

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Oral Manifestations of Renal Disease: When the kidneys show in the mouth

Chronic kidney disease changes the mouth — dry mouth, uraemic stomatitis, gum overgrowth from transplant medicines. Learn what dentists watch for.

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Oral Manifestations of Respiratory Disease: Dental clues to lung conditions

Asthma and COPD affect the mouth — thrush from inhalers, mouth breathing, gum-lung disease links. Learn how dentists adapt care and why oral hygiene matters.

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Oral manifestations of rheumatoid arthritis: how RA can affect your jaw, mouth and saliva

Rheumatoid arthritis affects the jaw joint, salivary glands and gums. Learn how it shows up in the mouth and what dentists adjust during treatment.

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Oral Manifestations of Thyroid Disease

Thyroid disease shows up in the mouth — enlarged tongue, delayed eruption, burning mouth, dry mouth. Learn how the oral signs differ in hypo- and hyperthyroidism.

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Pregnancy and Your Mouth: What Changes Should You Watch For?

Pregnancy hormones can cause swollen gums, gum lumps and tooth erosion. Here's what to expect and how to care for your mouth. Reviewed by Dr Cristian Dunker.

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Cold Sores & Viral Infections

The viruses that show up in the mouth

Cold sores, a child's first herpes infection, and the childhood viruses like hand-foot-and-mouth, chickenpox and measles that show up inside the mouth. How to recognise them and ease the symptoms.

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