Most people think of a cavity as a small problem that a filling can fix, and when it is caught early, that is often true. But decay moves in stages, and a tooth that is left alone can become too damaged to save. If you live in White Rock or South Surrey and are weighing up tooth replacement, it helps to understand how a tooth gets to that point, and how to avoid it.
How a cavity starts
A cavity begins with an acid attack. Bacteria in plaque feed on sugars and starches and make acid, and that acid pulls minerals out of enamel, the hard outer shell of the tooth. It takes three things together: plaque bacteria, sugars and starches, and time.
For a full walk-through of the process, see the original post on how a cavity forms. Here we focus on what happens when decay keeps going.
Where decay can lead
Decay moves through four stages, and each one makes treatment more involved:
- Stage one: a chalky white spot on the enamel. This can sometimes be reversed.
- Stage two: a small hole in the enamel. The tooth now needs a filling.
- Stage three: decay reaches the dentin, a softer layer, and spreads faster. Teeth often feel sensitive.
- Stage four: decay reaches the nerve. This can cause pain, and the tooth may need a root canal.
In many cases, root canal care can save a tooth even at stage four. A tooth with a weakened structure may also be supported with a crown, such as a same-day CEREC crown. The goal is always to keep your natural tooth where possible.
Why keeping the natural tooth comes first
A natural tooth has roots, and nothing replaces it perfectly. That is why prevention and early treatment matter so much. Not every tooth can be saved, though. If you are facing a missing tooth, whether from decay or another cause, a dentist can talk you through replacement options. Our dental implants guide is a good starting point for understanding what an implant involves.
Habits that keep cavities small
How often you have sugar matters more than how much. Every sugary snack or sip starts a new acid attack, and saliva needs time between attacks to repair enamel. These habits help:
- Brush twice a day with fluoride toothpaste, which helps rebuild enamel.
- Clean between your teeth once a day, where your brush can't reach.
- Keep sweets and sweet drinks to mealtimes, so there are fewer acid attacks.
- Drink water between meals to rinse and help saliva.
- Book regular check-ups and cleanings, so small problems stay small.
Why early detection matters
Decay between teeth is hard to see in a mirror. Low-dose digital X-rays can find it early, when a tooth-coloured filling or laser dentistry may be enough. Waiting usually means more steps, more time in the chair, and more to think about.
If you are researching replacement
If you already have a missing tooth, you are not alone, and you have choices. A conversation with your dentist can cover what suits your mouth, your comfort and your goals, including whether you want a single tooth implant or another approach. A check-up is a calm, low-pressure way to get clear answers.
To learn more about caring for your teeth at every stage, visit the main website, or call 604-535-8835 to book a check-up.