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Make this the Year You Stop Smoking

January 7th, 2026

It’s a new year, and it couldn’t come fast enough for many of us! Let’s do our part to make this a better year in every way—and you can start by making this the year you quit smoking once and for all.

You know that smoking is very damaging to your body. Smokers are more likely to suffer from lung disease, heart attacks, and strokes. You’re at greater risk for cancer, high blood pressure, blood clots, and blood vessel disorders. With far-reaching consequences like this, it’s no surprise that your oral health suffers when you smoke as well.

How does smoking affect your teeth and mouth?

  • Appearance

While this is possibly the least harmful side effect of smoking, it’s a very visible one. Tar and nicotine start staining teeth right away. After months and years of smoking, your teeth can take on an unappealing dark yellow, orange, or brown color. Tobacco staining might require professional whitening treatments because it penetrates the enamel over time.

  • Plaque and Tartar

Bacterial plaque and tartar cause cavities and gum disease, and smokers suffer from plaque and tartar buildup more than non-smokers. Tartar, hardened plaque which can only be removed by a dental professional, is especially hard on delicate gum tissue.

  • Bad Breath

The chemicals in cigarettes linger on the surfaces of your mouth causing an unpleasant odor, but that’s not the only source of smoker’s breath. Smoking also dries out the mouth, and, without the normal flow of saliva to wash away food particles and bacteria, bad breath results. Another common cause of bad breath? Gum disease—which is also found more frequently among smokers.

  • Gum Disease

Smoking has been linked to greater numbers of harmful oral bacteria in the mouth and a greater risk of gingivitis (early gum disease). Periodontitis, or severe gum disease, is much more common among smokers, and can lead to bone and tooth loss. Unsurprisingly, tooth loss is also more common among smokers.  

  • Implant Failure

Tooth implants look and function like our original teeth, and are one of the best solutions for tooth loss. While implant failure isn’t common, it does occur significantly more often among smokers. Studies suggest that there are multiple factors at work, which may include a smoker’s bone quality and density, gum tissue affected by constricted blood vessels, and compromised healing.

  • Healing Ability

Smoking has been linked to weakened immune systems, so it’s harder to fight off an infection and to heal after injury. Because smoking affects the immune system’s response to inflammation and infection, smokers suffering from gum disease don’t respond as well to treatment. Smokers experience a higher rate of root infections, and smoking also slows the healing process after oral surgeries or trauma.

  • Dry Socket

Smoking following a tooth extraction can cause a painful condition called “dry socket.” After extraction, a clot forms to protect the tooth socket. Just as this clot can be dislodged by sucking through a straw or spitting, it can also be dislodged by the force of inhaling and exhaling while smoking.

  • Oral Cancer

Research has shown again and again that smoking is the single most serious risk factor for oral cancer. Studies have also shown that you reduce your risk of oral cancer significantly when you quit smoking.

  • Consequences for Orthodontic Treatment

Finally, if this is the year that you’re investing the time and effort needed to create an attractive, healthy smile with orthodontic treatment, don’t sabotage yourself by smoking!

Cosmetically, smoking doesn’t just discolor your tooth enamel—tar and nicotine discolor your aligners and braces as well. If one of the reasons you chose clear aligners or ceramic brackets is for their invisible appearance, the last thing you want is yellow aligners and brackets.

More important, smoking, it’s been suggested, can interfere with your orthodontic progress. When blood vessels are constricted, your gums, periodontal ligaments, and bones can’t function at their healthy best, moving your teeth where they need to be steadily and efficiently. This means that your treatment could take longer. And if your smoking has caused gum disease, you might have to put any orthodontic treatment on hold completely until it’s under control.

Quitting smoking is a major accomplishment that will improve your life on every level. It’s always a good idea to talk to Dr. Razavi for strategies to help you achieve your wellness goals for the new year. Make this the year you stop smoking, and the year your health improves in countless ways because you did.

Things You Probably Didn’t Know About New Year's Eve

December 31st, 2025

It’s no secret that New Year’s Eve is one of the most widely celebrated holidays in the world. Dr. Razavi and our team love it too. It’s a fresh start, another year of surviving the crazy world we live in, a time to refocus on the things we want for ourselves, a celebration with those we love … the list goes on.

Dozens of countries welcome the New Year with over-the-top parties and celebrations. Because it’s a public holiday, many offices, businesses, and schools close for the day. As you think about your plans for this holiday, here are some fun facts about New Year’s that might surprise you!

Can you guess what the most common New Year’s resolutions are? You may already have one or two of these on your own personal list. The top five New Year’s resolutions are: to quit smoking, get a new job, lose weight, increase personal savings, and return to school. Just remember that coming up with a concrete plan to reach your goals is the surest way to achieve your resolutions!

About one million people brave the cold to watch the New Year’s Eve ball drop in New York City’s Times Square in person. Yes, that’s one million! This event is one of the most iconic celebrations in the world. People travel from all over just to experience it, but you can watch from the warmth and comfort of your living room.

If you’re not a fan of cabbage, collard greens, black-eyed peas, or ham hocks, you might want to revise your tastes. All these foods are all regarded as lucky fare on New Year’s Day. Unless you’re allergic, of course!

For many people in Mexico and Latin America, eating 12 grapes at midnight is a tradition that brings good luck in the 12 coming months. Most people even make a wish per grape!

Whether you’re celebrating in Kanata, Ontario or traveling elsewhere to observe the holiday, New Year’s Eve is a time to enjoy the company of your friends and family. Don’t forget to send warm wishes to your loved ones, and snag a midnight kiss with that special someone if you can!

Can Toothpaste Repair Tooth Decay?

December 24th, 2025

It seems like the ads are everywhere these days—repair your enamel and reverse tooth decay with a tube of toothpaste! Are these claims too good to be true? Let’s dive into the science of tooth decay—how decay develops and how (and if!) it can be reversed.

Teeth can stand up to the powerful pressures of biting and chewing because over 95% of our enamel is made up of minerals. Calcium and phosphate ions in our teeth bond to form a crystal structure called hydroxyapatite. Because of the strength of this crystalline design, tooth enamel is the hardest substance in our bodies, even stronger than our bones. 

But bones, like most other parts of our bodies, are living tissue, which means that they can create new cells to replace old or damaged cells. Tooth enamel can’t regenerate new cells to repair itself. This means that when a cavity has made a hole in the tooth, the enamel can’t grow back. And, while enamel structure is very strong, it’s also vulnerable to damage—specifically, damage from acids. 

Our teeth are exposed to acids throughout the day, whether they are acids created by plaque bacteria or the acidic foods and drinks we consume. Acids dissolve mineral bonds, stripping calcium and phosphate minerals from the enamel and leaving weak spots in the tooth surface. This process is called demineralization. Demineralization is the first stage of tooth decay.

The good news? Our bodies are designed with a built-in defense mechanism to prevent demineralization from causing lasting damage. All through the day, saliva helps wash away acids in the mouth and bathes our teeth with new calcium and phosphate ions. These ions bond with the calcium and phosphate in our enamel, restoring enamel strength. This protective repair process is called remineralization. 

Now for the bad news. In the tug of war between demineralization and remineralization, saliva can only do so much. If your diet is heavy with acids, if you don’t brush away acid-producing plaque bacteria regularly, if you eat a lot of the sugars and starches which feed plaque bacteria, the remineralizing effects of saliva can’t keep up with the demineralizing effects of acids.

The first visible sign of demineralization is often a white spot on the tooth where minerals have been stripped from enamel. Studies have shown that enamel-strengthening toothpaste can be effective in this very first stage of tooth decay. Toothpastes which advertise enamel repair generally contain one or more of these ingredients:

  • Calcium Phosphate
  • Hydroxyapatite
  • Fluoride 

Toothpastes with calcium phosphate or hydroxyapatite contain calcium and phosphate minerals, the building blocks of tooth enamel. Studies have suggested that these minerals can replace the calcium and phosphate ions stripped from enamel. These toothpastes may or may not contain fluoride, which is something you should discuss with your dentist before deciding on a specific toothpaste.

Fluoride toothpastes remineralize enamel—and more! Fluoride ions are attracted to the tooth’s surface, and, when fluoride ions join with the calcium and phosphate ions there, they form fluorapatite. Fluorapatite crystals are larger, stronger, and more resistant to acids than hydroxyapatite crystals. And, once bonded with tooth enamel, fluoride attracts the calcium and phosphate ions in saliva to remineralize the teeth more quickly. 

Why consider enamel-repair toothpaste? 

Once enamel is gone, it’s gone for good. If excess demineralization isn’t treated, a weak spot on the tooth surface will continue to erode, growing bigger and deeper until it becomes a hole in the enamel. This is a cavity, and your dentist will need to treat and repair your tooth to prevent the cavity from growing and potentially exposing the tooth’s pulp to bacteria and infection. 

If you wear braces, you want to be especially careful about excess demineralization. Because it can be hard to brush and floss effectively with braces, white spots and discolored patches are a common concern for those with braces, especially on the enamel around brackets.  

Talk to Dr. Razavi at our Kanata, Ontario office about which toothpastes can help restore a healthy balance between the ongoing cycles of demineralization and remineralization when you have braces. While tooth-repair toothpaste can’t fix cavities, these products can often strengthen demineralized enamel and reverse this earliest stage of tooth decay.

Forget Something? It’s on the Tip of Your Tongue!

December 17th, 2025

Let’s see…

Toothbrush? Check.

Fluoride toothpaste? Check.

Floss? Check.

Two minutes of thorough brushing? Check.

Careful cleaning around your brackets and wires? Check.

Wait… there’s something else… it’s right on the tip of your…

Ah! Your tongue! Whenever you brush, morning, evening, or any time in between, if you want the freshest breath and cleanest teeth, don’t forget your tongue.

Why your tongue? Because the tongue is one of the most common sources of bad breath. Let’s examine just why this occurs.

The tongue is made up of a group of muscles that help us speak and chew and swallow. But there’s more to this remarkable organ than mere muscle. The surface of the tongue is covered with mucous membrane, like the smooth tissue which lines our mouths. But the tongue isn’t completely smooth—it’s textured with thousands of tiny bumps called papillae.

These little elevated surfaces have several shapes and functions. Some make the tongue’s surface a bit rough, which helps move food through your mouth. Some are temperature sensitive, letting you know that your slice of pizza is much too hot. And some are covered with thousands of the taste buds, which make eating that pizza so enjoyable.

All of these papillae with their various functions combine to create a textured surface, filled with miniscule nooks and crannies. And if there’s a nook or a cranny where bacteria can collect, no matter how miniscule, it’s a good bet that they will, and the surface of the tongue is no exception. But bacteria aren’t alone—the tongue’s surface can also hide food particles and dead cells.

How does this unappealing accumulation affect you? These elements work together to cause bad breath, especially the bacteria that break down food particles and cell debris to produce volatile sulfur compounds—compounds which create a particularly unpleasant odor. Including your tongue in your brushing routine helps remove one of the main causes of bad breath.

And that’s not the only benefit! Cleaning the tongue helps eliminate the white coating caused by bacterial film, and might even improve the sense of taste. Most important, studies show that regular cleaning noticeably lowers the levels of decay-causing plaque throughout the mouth.

So, how to get rid of that unwanted, unpleasant, and unhealthy debris?

  • When you’re done brushing your teeth, use your toothbrush to brush your tongue.

Clean your tongue by brushing gently front to back and then side to side. Rinse your mouth when you’re through. Simple as that! And just like a soft-bristled toothbrush helps protect tooth enamel and gum tissue, we also recommend soft bristles when you brush your tongue. Firm bristles can be too hard on tongue tissue.

  • Use a tongue scraper.

Some people find tongue scrapers more effective than brushing. Available in different shapes and materials, these tools are used to gently scrape the surface of the tongue clean of bacteria and debris. Always apply this tool from back to front, and rinse the scraper clean after every stroke. Wash and dry it when you’re through.

  • Add a mouthwash or rinse.

As part of your oral hygiene routine, antibacterial mouthwashes and rinses can assist in preventing bad breath. Ask Dr. Razavi for a recommendation.

  • Don’t brush or scrape too vigorously.

Your tongue is a sturdy, hard-working organ, but tongue tissue is still delicate enough to be injured with over-vigorous cleaning.

Taking a few extra seconds to clean your tongue helps eliminate the bacteria and food particles which contribute to bad breath and plaque formation. Make this practice part of your daily brushing routine—it’s a healthy habit well worth remembering!