
Tooth decay
Tooth decay is one of the most common dental conditions affecting both children and adults. Left untreated, it can lead to pain, infection, tooth damage, and even tooth loss.
What is tooth decay?
Tooth decay, commonly known as a cavity, occurs when bacteria in the mouth produce acids that gradually wear away the protective enamel of a tooth. As the decay progresses, it can spread deeper into the tooth, affecting there nerves and blood vessels.
Without treatment, tooth decay can result in severe pain, infection, and the need for more extensive procedures such as root canal treatment or tooth extraction.
What causes tooth decay?
Several factors can contribute to the development of tooth decay, including:


Tooth decay can affect more than just teeth
Tooth decay (“cavity”) has many causes, including poor oral hygiene, drinking and eating too many sweets.
Baby teeth are “made” differently than adult teeth. It may take a few years for decay to form in permanent teeth however it can develop in only six months in a baby tooth. Decay can develop so quickly in a child that they often do not feel any pain until it is either extremely deep or infection has developed.
Young children with untreated decay are more likely to weigh less than their ideal weight. They may show decreased intellectual, emotional and physical development. Since cavities may be painful these children may experience problems sleeping, become introverted and shy, or develop poor eating habits.
Early detection and treatment, in any age group, are critical in lowering the risk of requiring invasive and costly dental treatment.
Book an appointment for tooth decay treatment
Whether you’re concerned about a cavity, experiencing tooth sensitivity, or bringing your child in for their first dental visit, our experienced team is here to provide gentle, effective care.
Common signs of tooth decay
As decay progresses, it weakens the natural tooth structure, making teeth more susceptible to fractures and infection.

How to prevent tooth decay
Good oral hygiene and preventive dental care are the best defense against cavities. You can lower your risk of tooth decay by:


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Think you have a tooth decay?
Tooth decay is much easier to treat when it’s caught early. Whether you’re concerned about your own oral health or your child’s, the team at Westmount Dental is here to help.

Common questions about tooth decay
We’re here to help. Browse the most common questions below, or reach out to our team directly.
Tooth decay is the gradual breakdown of a tooth caused by bacteria that produce acid, damaging the enamel and eventually the deeper layers of the tooth.
Very early enamel damage may sometimes be slowed or repaired with fluoride and excellent oral hygiene. Once a cavity forms, it requires professional dental treatment.
Brush twice a day, floss daily, reduce sugary foods and drinks, and visit your dentist regularly for professional cleanings and examinations.
You should schedule an appointment if you notice tooth sensitivity, pain, visible holes, dark spots on a tooth, or if it’s been more than six months since your last dental exam.
Regular brushing, flossing, tongue cleaning, dental visits, hydration, and avoiding tobacco products can help prevent halitosis.
If bad breath persists despite good oral hygiene habits, it’s important to schedule an examination to identify any underlying dental concerns.
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