Dental Plaque Accumulation
A soft, sticky film of bacteria that forms on teeth within hours of brushing.
Why is it happening?
A tooth does not simply decide to hurt. Something caused it — and it is almost never the thing people blame themselves for. This is the list we work from: 201 causes behind dental problems, from the bacteria on a tooth surface to the medicine in your cabinet, written so you can find yourself in it.
Most people arrive here after step 3, having found the symptom that matches what they are feeling. This is the layer underneath: the thing that produced the symptom.
Two honest warnings before you scroll. First, a cause is not a diagnosis — several of these produce almost identical symptoms, and separating them needs a look, a radiograph and sometimes a test. Second, you will very likely find more than one that fits. That is normal. Dental problems are rarely caused by a single thing.
We have included our own profession's mistakes. One of the eleven groups below is treatment-related — decay left under a filling, a root canal never crowned, a gap never replaced. Those cause as much trouble as anything a patient does, and a list that left them out would not be honest.
Jump to a group
The organisms themselves. Almost every dental problem starts here.
A soft, sticky film of bacteria that forms on teeth within hours of brushing.
Plaque that has mineralised into a hard deposit which brushing cannot remove.
Hard deposits forming below the gum line, out of sight and out of reach of a brush.
The main decay-causing bacterium, which turns sugar into acid on the tooth surface.
Bacteria that thrive in existing cavities and drive decay deeper.
A key bacterium in advanced gum disease that destroys the attachment around teeth.
A yeast infection of the mouth, common under dentures or after antibiotics.
Bacteria that colonise exposed root surfaces in older adults.
Old or poorly finished fillings give bacteria a surface to grip.
Once decay reaches dentine, bacteria travel down microscopic tubes toward the nerve.
A flap of gum over a partly erupted wisdom tooth traps food and bacteria beneath it.
Bacteria colonising the neck of a dental implant.
Bacteria re-entering a previously treated root canal through a leaking crown or filling.
A bacterial layer on the back of the tongue producing sulphur compounds.
Decay bacteria passed to an infant by sharing spoons or cleaning a dummy in the mouth.
A filling edge that sits proud of the tooth, sheltering bacteria.
Braces create dozens of new places for plaque to sit undisturbed.
A bacterial and fungal layer on the fitting surface of a denture.
A bacterium that bridges early and late colonisers in gum disease.
Infection from a dead nerve finding a path out through the jaw bone.
What goes in the mouth, and — more importantly — how often.
It is how often sugar is eaten, not how much, that drives decay.
Sweet drinks bathe every tooth surface in sugar and acid at once.
A drink sipped over an hour keeps the mouth acidic the whole time.
Lemon, lime and other acids dissolve enamel directly, without bacteria.
Carbonation makes even unsweetened water mildly acidic.
Toffee, dried fruit and biscuits cling to grooves long after eating.
Milk or juice pooling around an infant's teeth overnight.
Bread, crisps and biscuits break down into sugars in the mouth.
Low vitamin D impairs calcium use and the immune response in gums.
Severe lack of vitamin C weakens the collagen that holds gums together.
The minerals enamel needs to repair itself daily are missing.
Low iron affects the lining of the mouth and tongue.
Deficiency affects rapidly renewing tissues, including the mouth lining.
Too little water reduces saliva, the mouth's natural defence.
Alcohol dries the mouth and irritates the soft tissues.
Highly acidic and sugary, often consumed during exercise when saliva is low.
Poorly planned plant-based diets can lack B12, iron and calcium.
Ice is harder than enamel and applies force in a single point.
Sweetened hot drinks sipped through the day.
Repeated vomiting exposes teeth to stomach acid.
Spicy, fatty or late-night meals triggering reflux into the mouth.
A very common habit in India with strong local effects on the mouth.
Not whether you clean, but whether the cleaning reaches.
Brushing less than twice a day lets plaque mature undisturbed.
Heavy pressure wears the tooth and pushes the gum back.
Stiff bristles abrade enamel and traumatise the gum margin.
Splayed bristles no longer reach into grooves or below the gum edge.
A brush cannot reach the surfaces where teeth touch.
Scrubbing sideways rather than angling into the gum line.
The last molars are hardest to reach and most often missed.
Dentures gather plaque exactly as natural teeth do.
These need threading floss or special brushes to clean underneath.
Washing the mouth out removes the fluoride before it can act.
Fluoride-free pastes clean but do not help enamel repair itself.
Bleeding is the earliest warning of gum inflammation, and it is reversible.
Most decay and gum disease is painless until it is advanced.
Once hardened, deposits can only be removed with instruments.
Rinsing freshens breath but does not remove the plaque film.
Long-term use of strong antiseptic rinses beyond the prescribed period.
Direct transfer of bacteria and blood between mouths.
The tongue holds a large share of the mouth's bacteria.
Routines lapse during long illness, hospitalisation or depression.
Things the mouth does that it was never designed to do.
Clenching and grinding during sleep, often without the person knowing.
Holding the teeth together while concentrating or under stress.
Repeated small forces on the front teeth edges.
Concentrated biting force on a hard object.
Persistent sucking applies constant outward force to developing teeth.
Similar forces to thumb sucking, applied for years.
The tongue pushes forward against the front teeth when swallowing.
Breathing through the mouth dries the gums and alters facial growth.
Repeated trauma to the lip and pressure on the front teeth.
Using teeth as tools for bottles, packets and thread.
Pins, nails or thread held habitually in the same spot.
Chronic chewing of the inside of the cheek.
Grinding as part of the arousal response in obstructive sleep apnoea.
Avoiding a painful side loads the other side twice as hard.
Tobacco reduces blood flow to the gums and masks bleeding.
Tobacco held against the cheek or gum for long periods.
Aerosols dry the mouth and alter the bacterial balance.
Lime raises the pH and increases the mucosal effect of tobacco.
Forcing wooden picks between teeth repeatedly.
Snapping floss down onto the gum instead of guiding it.
Resting the chin on the hand or sleeping on one side of the face.
Hours of chewing overloads the jaw muscles and joints.
Force, in one moment or repeated for years.
A direct blow during contact or ball sports.
Toddlers and young children commonly land face-first.
High-energy facial trauma.
A stone in rice or a bone in food, hit at full force.
A hairline crack that opens under biting pressure.
One tooth taking more force than it can handle when biting.
Excessive force on an implant, often from grinding.
Flexing of the tooth under bite stress chips enamel at the neck.
Lip or tongue jewellery knocking against teeth all day.
A metal clasp resting on a tooth and moving with every chew.
Moving teeth faster than the bone can remodel.
A restoration that does not seat correctly on the tooth.
A large old filling breaking under normal function.
Hard ceramic grinding against natural enamel over years.
A split running down the root, often in root-treated teeth.
Food repeatedly wedged into the same gap by the bite.
A break in the mandible or maxilla from impact.
A tooth completely out of its socket.
A tooth driven up into the bone by a blow.
Placing a tablet against the gum to relieve toothache.
The mouth is part of the body. Conditions elsewhere show up here first.
Raised blood sugar impairs healing and the response to infection.
Poor glycaemic control has a direct two-way link with gum disease.
Raised hormones exaggerate the gum response to plaque.
Falling oestrogen affects bone density and the oral lining.
Reduced bone density throughout the body, including the jaws.
Shares inflammatory pathways with gum disease and limits hand function.
Chronic gum inflammation is linked to vascular inflammation.
Altered calcium and phosphate handling plus a dry mouth.
A weakened immune response to normal oral bacteria and fungi.
Abnormal white cells infiltrate the gums and impair clotting.
Altered metabolism affects saliva, healing and tooth eruption.
An autoimmune condition that destroys the salivary glands.
Stomach acid reaching the mouth, often silently at night.
An immune reaction to gluten affecting enamel formation and the mouth.
Inflammatory bowel disease with oral manifestations.
Seizures risk dental trauma; some medications enlarge the gums.
Weakness on one side makes brushing that side almost impossible.
Loss of routine and the ability to report pain.
Altered immune response, tooth shape and eruption pattern.
Muscle control difficulties affecting cleaning and swallowing.
Reduced oxygen delivery to the oral tissues.
Haemophilia and similar conditions affecting clot formation.
Chronic low-grade inflammation throughout the body.
Raised cortisol suppresses immunity and drives clenching.
Medicines you should not stop — but whose oral effects can be managed.
Many blood pressure medicines reduce saliva flow.
A very common cause of long-term dry mouth.
Drying effects extend to the salivary glands.
Increased fluid loss reduces saliva volume.
Causes overgrowth of gum tissue in a proportion of users.
Amlodipine and nifedipine can enlarge the gums.
Immunosuppression plus gum overgrowth together.
Bone-strengthening drugs that alter jaw bone healing.
Similar jaw healing risk to bisphosphonates.
Damages rapidly dividing cells, including the mouth lining.
Permanently damages salivary glands in the treatment field.
Suppresses immunity and thins the oral lining.
Inhalers are acidic and encourage fungal growth.
Warfarin and newer anticoagulants prolong bleeding.
Liquid iron stains the teeth on contact.
Taken while teeth are forming, it binds into the enamel.
Present before the first tooth appeared.
An inherited condition where enamel forms abnormally.
Inherited abnormal dentine formation beneath the enamel.
Enamel that formed too thinly due to illness or fever in childhood.
Soft, chalky first molars and incisors of uncertain cause.
Too much fluoride while teeth were forming.
One or more adult teeth never formed.
An extra tooth blocking or displacing the normal ones.
The canine fails to find its path and lodges in the bone.
No room for the third molars to erupt straight.
The lower jaw sits behind the upper by skeletal proportion.
The lower jaw sits ahead of the upper.
A constricted upper jaw, often with mouth breathing.
Teeth larger than the space available in the jaw.
A small, conical upper lateral incisor.
Two teeth joined, or one splitting during formation.
A developmental infolding creating a channel into the tooth.
An enlarged pulp chamber and shortened roots.
A developmental gap in the lip or roof of the mouth.
Decades of ordinary use, accumulating.
Normal tooth-against-tooth wear accumulated over decades.
Gums gradually recede, exposing softer root surface.
The tooth lays down dentine inwardly through life.
Salivary flow declines, compounded by medications.
Decades of acid and abrasion thin the outer layer.
Fillings and crowns do not last forever.
Cumulative wear shortens the face height.
A tooth with nothing to bite against keeps erupting.
Dentine darkens and enamel thins together.
Arthritis and weakness make thorough brushing difficult.
Work, water, routine and access.
Disrupted routine means missed brushing and more snacking.
Sustained stress drives clenching and suppresses immunity.
Frequent training in poorly balanced pool water.
Industrial acid vapour in battery or plating work.
Bakery and confectionery workers inhale and swallow sugar dust.
Sustained lip and tooth pressure from a mouthpiece.
Distance, cost or fear preventing routine visits.
Fear leading to years of avoided appointments.
Not knowing that bleeding gums or a black spot matter.
Water with very little natural fluoride.
Some regions of India have naturally excessive fluoride.
Chronic irritation of the airway leading to mouth breathing.
Treatment started in one place and never completed elsewhere.
Choosing the cheapest option repeatedly rather than the right one.
Knowing the cause is step four. Step five is what to do about it — and step six is what it actually takes to fix. Both are written, both are on the journey.
Step 4 of 20 · The AR 32 patient journey
This is step 4 of 20. Nothing here is a diagnosis — it is the ground you cover before one.
General information, not a diagnosis. In pain now? Call 8484990678.
Weather, a railway and a bit of an apocalypse — then it hands the page
back to you, quiet, to read properly.
In pain right now? Skip straight to booking.
Weather, the railway, and the twenty steps of the patient journey. Shall I put the page back the way a patient finds it? The train stays running — it follows your cursor, changes its own points and calls at its own platforms, and you can switch it off any time from the control station.
Switch it off and come and meet Dr Avinash Bamane — a dentist who writes the code for his own clinic. Your journey starts the moment you do.