Decay found between teeth
A cavity discovered on an X-ray where you had no symptoms can be unsettling. It's a good time to review what else may be going on. Let us know roughly when earlier fillings were placed and why, if you remember.
General & Family Dentistry
Cavity Risk Assessment in Puslinch
Some decay hides between teeth where no mirror can reach, which is why X-rays come up in conversations about risk. From Puslinch, a cavity risk assessment explains when imaging earns its place, what else is weighed and how often each check is really needed.
Seeing what the eye can’tUnderstand imaging and your risk
The cavities you can’t see, and how risk guides the search
Decay doesn't always start where it can be spotted. The surfaces where back teeth touch each other are a common hiding place, and an early lesion there may be invisible during a visual exam. That is one reason dentists sometimes suggest X-rays, and why patients reasonably ask whether they are needed every time.
A cavity risk assessment helps answer that question. It looks at your history of decay, the examination findings, saliva, sugar frequency, fluoride and how easy your teeth are to clean, then weighs those against the habits that already protect you. Someone with frequent new decay may need closer monitoring than someone whose teeth have been stable for years.
It is not a precise prediction and not a judgement. It is a way of matching the level of checking and prevention to your situation, so that you are neither over-tested nor left with gaps. Ask about anything that is proposed, tell us what has changed lately, and we'll explain the reasoning, including the times when a test isn't necessary and when existing images already tell us enough.
When a review is timely
Signals that something may be changing
Puslinch households often ask about risk after a surprise finding or a change in health. These are common starting points.
Dryness or a new prescription
Reduced saliva from medicines, treatment or a health condition can make teeth more vulnerable. Bring a current medication list and note when dryness started. We can help you identify questions to raise with your doctor or pharmacist.
Cleaning between teeth is a struggle
Tight contacts, bridges, sore fingers or simply never having found a method you like can leave between-teeth surfaces uncleaned for weeks at a time. Explain the obstacle honestly. Suggestions such as picks, small brushes or a water flosser are more practical when they're tailored to it.
Assessing future risk is separate from evaluating a tooth that already hurts. If you notice new sensitivity, food catching in a new spot or a broken filling, mention it so that tooth is examined directly.
Why it matters
The right amount of checking
Without a sense of risk, monitoring can be too much or too little. The assessment helps decide how closely to watch, which preventive measures may help and how often to return. It can't eliminate uncertainty, so ask which factor is driving the recommendation and whether it would change if that factor improved.
You should leave with a clear explanation: what is already working, where extra protection might be sensible and how progress will be measured, including whether imaging is planned at your next visit and why. The plan can be reconsidered when your situation changes.
Patient information: American Dental Association — caries risk assessment and management
Active decay versus old repairs
Previous fillings are part of the record, but current findings guide decisions. For each area raised, ask whether it is being watched, given preventive treatment or scheduled for repair, and what the evidence is.
Tests with a purpose
Any imaging or additional test should answer a question that affects your care. Ask what the image is meant to show and whether recent images, perhaps from a previous dentist, already provide that information.
Follow-ups that build on each other
Agree what will be compared next time. Monitoring an early lesion, for example, may involve checking whether it has changed since the last image or exam, rather than starting fresh.
How it works
Examination first, imaging only if needed
You don't need to remember every filling. Mention any previous dental office you've attended so earlier records and X-rays can be requested with your consent.
Gather the history
We discuss past treatment, symptoms, medicines, dryness, diet and cleaning habits. If you know why a tooth was filled, share it. Older records and images can help avoid repeating tests unnecessarily.
Examine visible surfaces
The dentist checks enamel, restorations, grooves and plaque-retaining areas. Where surfaces between teeth or under fillings can't be judged by sight, X-rays may be recommended if they would answer a clinical question. The decision is individual.
Explain the findings
We describe which findings may raise risk and which habits are protective. You can ask what the assessment shows and where its limits lie. A higher-risk result means planning carefully, not that new decay is certain.
Plan prevention and timing
We agree on home care, possible in-office prevention and how any existing lesions will be managed, including costs and product directions. The review interval, and whether imaging will be needed then, depends on your findings.
Afterwards
Protect the surfaces that hide decay
Home care has the biggest influence between visits. If any advice is vague, conflicts with other medical guidance or doesn't fit your routine, let us know.
Prioritise between-teeth cleaning
Twice a day, brush using a fluoride paste, and once a day reach between the teeth with floss, picks or small brushes as advised. If tight contacts make floss shred, ask about alternatives. The goal is to reach the surfaces a brush misses.
Limit frequent sugar
Where relevant, reduce how often sweet snacks and drinks reach your teeth. Frequent small amounts can matter more than one larger treat. Any change should still support balanced nutrition and medical advice.
Update us on health changes
Let us know about new medicines, persistent dryness or medical treatment. Do not stop prescribed medicine yourself. Your risk is reassessed as circumstances change, not fixed at one visit.
Patient information: NIDCR — oral hygiene and additional preventive care · Canadian Dental Association — appropriate fluoride use
What Puslinch adults ask about imaging(905) 876-4488
X-rays, hidden decay and how often to check
Ask us to explain any part of the plan in everyday language, including why a particular test is or isn't recommended.
Why can't the dentist see all cavities just by looking?
Some decay starts on surfaces where teeth touch or under existing fillings, which are hidden from view. Early lesions there may not be visible until they are larger. X-rays can help detect them when there is a reason to look.
How often will I need dental X-rays?
There is no single schedule for everyone. The interval depends on your risk, history, symptoms and previous images. Someone with frequent new decay may need images more often than someone whose teeth are stable.
Can an early cavity between teeth heal?
Very early mineral loss can sometimes be stopped or reversed with fluoride and improved cleaning. Once a cavity has formed a hole, it usually needs a filling. The dentist may monitor early lesions to see whether they change.
Can my previous dentist send X-rays so I don't need new ones?
Often, yes, with your consent. Recent images can sometimes provide the information needed. The dentist will decide whether they are sufficient or whether a new image would answer a specific question.
Are dental X-rays safe?
Dental X-rays use low doses of radiation, and dentists take precautions to keep exposure as low as reasonably achievable. They are recommended only when the information is expected to benefit your care. Ask if you have concerns.
Will my risk level change how often I'm seen?
It may. Review intervals are based on findings and risk, and they can be adjusted as things change. A previous high or low result is reconsidered at each review.
Book from Puslinch
Get clear answers about hidden decay
Arrange a time at our Bronte Street practice to discuss a surprise cavity, questions about X-rays or changes in your health. Bring your medication list, the products you use and details of your previous dental office. We'll explain the findings and the reasoning behind any test.
Please call about serious pain, swelling or a broken tooth. Online booking is intended for non-urgent appointments.
Visit Milton Dental ClinicUnit 1, 342 Bronte St. S, Milton, ON L9T 5B7Get directions
Clinic hours
- Monday–Thursday
- 11am–7pm
- Friday–Sunday
- By appointment only
Areas we serve
- Milton
- Oakville
- Mississauga
- Georgetown
- Halton Hills
- Acton
- Campbellville
- Brampton
- Burlington
- Puslinch
- Rockwood
- Erin
- Caledon
- Etobicoke
- Old Milton
- Bronte Meadows
- Timberlea
- Dorset Park
- Dempsey
- Clarke
- Beaty
- Coates
- Harrison
- Scott
- Willmott
- Ford
- Bowes
- Cobden
- Walker
- Mountain View
- Milton Heights
- Hawthorne Village
- Valley View
- Fallingbrook
- Nassagaweya
- Trafalgar
- Esquesing
- Nelson
- Brookville
- Moffat
- Glen Williams
- Norval
- Limehouse
- Stewarttown
- Ashgrove
- Hornby
- Silver Creek
- Speyside
- Scotch Block
- North Oakville
- River Oaks
- Glen Abbey
- West Oak Trails
- Palermo
- Bronte Creek
- College Park
- Joshua Creek
- Uptown Core
- Preserve
- Iroquois Ridge
- Lisgar
- Meadowvale
- Meadowvale Village
- Churchill Meadows
- Erin Mills
- Central Erin Mills
- Streetsville
- East Credit
- Creditview
- Heartland
- Sheridan
- Mount Pleasant
- Credit Valley
- Huttonville
- Churchville
- Springbrook
- Northwest Brampton
- Bram West
- Fletcher's Meadow
- Fletcher's Creek South
- Alton Village
- Orchard
- Millcroft
- Headon Forest
- Tansley
- Brant Hills
- Tyandaga
- Kilbride
- Lowville
- Aberfoyle
- Morriston
- Arkell
- Hillsburgh
- Freelton
- Carlisle
- Waterdown
- Flamborough
- Mountsberg
