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Why Do Molars Seem to Get More Cavities?

August 6th, 2025

Probably because, for many kids, molars do get more cavities. So let’s answer two better questions: Why do molars get more cavities? And, how can we help prevent them?

It’s the Pits. (And Fissures.)

The reason molars are so useful—and more likely to develop cavities—is because of their shape. Unlike our front teeth, which are used to bite through foods, molars are used to grind and chew. That’s why they are so much larger, with a flat surface on top. Well, not exactly flat.

When you look at a molar, you’ll notice that the top isn’t really smooth at all. It’s covered with little indentations known as pits and longer grooves called fissures. These irregular features both trap food particles and make it more difficult for bristles to clean them away. Cavities in molar surfaces are so common that they even have a specific name: “pit and fissure cavities.”

But molar biology does not mean tooth decay is inevitable! There are steps you can take to protect your children’s molars as they grow, while you’re providing them with dental strategies that will keep their adult molars healthy and cavity-free.

Preventing Pit and Fissure Cavities

  • Don’t Just Brush—Brush Effectively

The first step in preventing any kind of cavity is brushing properly. Your child should be brushing at least two minutes, at least twice each day. And while the time we spend brushing is important, technique is also key.

When you’re showing your child how to brush, be sure that the tops of molars, upper and lower, get brushed thoroughly, with special emphasis on cleaning pits and fissures. Make sure the toothbrush is small enough to fit your child’s mouth comfortably and reach all the tooth surfaces. Replace worn-down brushes or electric toothbrush heads after three to four months when they no longer clean as effectively.

Your child will probably need adult supervision from toddler years through the early years of grade school to learn how to brush properly. This is time well spent, as your child learns cavity-preventing brushing techniques which will last a lifetime.

  • Eat a Tooth-Healthy Diet

Plaque bacteria use the sugars in our food to make acids. These acids break down the mineral strength of tooth enamel and eventually lead to cavities. And because pits and fissures are great hiding places for bacteria and food particles (especially sticky ones), molars are even more at risk for cavities. Limiting sugary, sticky foods like sweet treats and simple carbs helps reduce that risk.

Acidic foods like flavored juices, sour candies, sodas, and power drinks also weaken enamel and can leave teeth more vulnerable to decay. Help your child avoid cavities by limiting acidic foods and drinks, making them part of a balanced meal, and/or rinsing with water after eating.

  • Use Fluoride Toothpaste

Fluoride toothpaste not only reduces the risk of cavities, it also helps strengthen enamel that has been weakened by bacterial and dietary acids. Win-win!

  • Ask About Sealants

Sealants are invisible, safe coatings which protect molars by preventing food and bacteria from getting trapped in their uneven surfaces. The top of the molar is first treated with an etching solution to allow the sealant to bond tightly to the tooth, a thin coat of sealant is painted on, and then it’s hardened under a curing light. That’s all there is to it.

Sealants are often recommended when children’s permanent molars first erupt, when they are especially at risk for cavities. Sealants can last from three to five years (or even longer), and studies have shown a dramatic reduction in cavities for patients who use sealants compared to patients with untreated teeth. Depending on your child’s individual needs, Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok might recommend a sealant for baby molars as well.

  • Regular Exams and Cleanings

It might be hard for you to tell if your child’s molars have been affected by sticky plaque, or sugary foods, or acidic drinks, or inadequate brushing, or any other potential cavity-causers. It’s not a difficult job for Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok, though! Through regular checkups and cleanings at our Kingston, ON office, we will discover any conditions that might lead to cavities, and, if necessary, treat small cavities before they lead to more serious decay.

Statistically, childhood molars have a greater chance of developing cavities than incisors and canines. Help your child beat the odds by understanding why these teeth are at risk and by working with your dental team to give your child years of healthy teeth now and a future filled with beautiful smiles!

Dangers of Alcohol and Oral Health

August 5th, 2025

We often have patients who ask, “Can drinking alcohol affect my oral health?” There are, in fact, a few reasons why that martini may not be good for your pearly whites.

In addition to creating an overly acidic environment in your mouth, alcohol severely dehydrates oral tissues because of its desiccant and diuretic properties. Because alcohol saps oral tissues of their moisture so readily, saliva glands can't keep enough saliva in the mouth to prevent dry mouth. In addition, saliva contains antibacterial properties that inhibits growth of anaerobic bacteria, a destructive type of oral bacterial responsible for tooth decay, gingivitis, chronic bad breath, and periodontitis.

What are anaerobic bacteria?

When there is a lack of saliva flow in the mouth and the mouth cannot naturally cleanse itself of oral debris (food particles, dead skin cell, mucous), conditions develop that promote activity of anaerobic bacteria, or bacteria that thrive in dry, airless places. These anaerobes also flourish when an unending supply of proteins (food debris) are available to consume, creating rapidly multiplying layers of plaque that stick to teeth and demineralizes tooth enamel unless removed by brushing and professional dental cleanings.

Oral Cancer and Alcohol

Acetaldehyde is a chemical compound leftover after the liver has metabolized alcohol. Capable of causing genetic mutations, acetaldehyde is also a known carcinogen that contributes to the ill feelings of hangovers. Although most metabolism of alcohol is done in the liver, evidence shows that metabolism also occurs outside the liver and that enzymes in the mouth could encourage accumulation of acetaldehyde in oral tissues.

When combined with poor oral health, smoking, and other detrimental lifestyle factors, alcohol may be considered a primary contributory factor in the development of oral cancer.

Even if you don't drink or drink only occasionally, remaining aware of symptoms that may indicate oral cancer will improve your chances of recovering successfully when you start treatment in the early stages of oral cancer. Signs include red or while speckled patches in the mouth, unexplained bleeding, lumps/swellings, chronic ear or throat pain, and areas of numbness in the mouth or on the face.

If you have any questions about alcohol and its connection to oral health, don’t hesitate to ask Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok at your next visit to our Kingston, ON office.

A Prescription for Oral Health

July 30th, 2025

You and your dentist are essential partners in making sure you have the best dental care. You do your part by eating a tooth-healthy diet, brushing and flossing as recommended, and seeing Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok regularly for checkups and cleanings.

And one more essential step you can take for your dental health? Let Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok know which prescriptions and over the counter medications you’re taking.

Medications Have Oral/Dental Side Effects

We’ve all grown used to hearing “Possible side effects include . . .” at the end of every pharmaceutical commercial. That’s because those unintended side effects can affect our health in any number of unexpected ways—and this includes oral health.

For example, a common side effect of many medications is xerostomia, or “dry mouth.” Because saliva helps keep our teeth and gums healthy by washing away food particles and oral bacteria and by reducing acidity in the mouth, a reduction in saliva production means a greater risk of cavities, gum disease, oral infections, denture discomfort, and bad breath.

Knowing a patient is taking one of the hundreds of medications which cause xerostomia allows Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok to both monitor the condition and suggest the most effective treatment options to control unpleasant symptoms.

Medications can cause not only dry mouth, but excessive gum tissue growth, oral sores, tooth discoloration, and changes in taste, among other side effects, so knowing which medications you’re taking can provide essential information for the diagnosis and treatment of these conditions.

Medications Interact

Medication might be needed for your dental treatment. Because certain drugs, supplements, and even some vitamins and foods can affect the way our bodies metabolize, absorb, and respond to other medications, we need to know which medicines you’re taking to arrive at your best treatment options.

  • There are different classes of antibiotics used to treat oral infections. Knowing your medical history enables Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok to choose an antibiotic option which won’t interact with your other medications.
  • Local anesthetics such as lidocaine, which numb the area to be treated, can also interact with certain medications. Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok can prescribe an alternative local anesthetic or adjust the dosage as needed.
  • If you will be using sedation during your procedure, you have several options, including nitrous oxide gas, oral sedation, or IV sedation. Be sure we know about all of your medications beforehand because of possible interactions. Changes can be made to the type of sedation and/or the dosage as needed.

Medications Impact Treatment

It’s important for Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok to know if any of your medications will affect standard treatments.

Anticoagulants, for example, are a necessary medication for preventing blood clots from forming, and are often prescribed for certain heart conditions, after joint replacement surgery, or for anyone at risk for developing blood clots. Because these medications prevent the blood from clotting, it’s important to let us know if you are taking such drugs before any kind of oral surgery.

If needed, Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok can work with you and your doctor to create a treatment plan which will be safe, effective, and designed to work with any of your medications. You should never discontinue taking your prescribed medications before dental work without medical approval, as this can be dangerous.

We need the most up to date information about your health to provide you with the best care possible. Knowing which medications you take and why you take them can help us:

  • Diagnose and treat any side effects from non-dental medications which have affected your oral health,
  • Prevent drug interactions from occurring, and
  • Tailor your treatment to your specific medical needs.

Your prescriptions, over the counter medications, and even herbal supplements and vitamins are essential information. It’s a good idea to make a list before your next appointment at our Kingston, ON office so you have specific medications and their dosages at hand. It’s one small—but vital—step you can take to work with Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok for your best dental health!

Post Oral Surgery: Signs of Infection

July 29th, 2025

Oral surgery can be intimidating, especially if you show any signs of an infection afterwards. Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok and our team want you to be informed about what to watch for after you’ve undergone surgery.

Oral surgery procedures are intended to reduce pain and prevent infection. Sometimes complications occur after your surgery, and if infection ensues, it will require swift medical attention.

People undergo oral surgery for many reasons, such as:

  • Impacted or infected teeth
  • Tooth loss, jaw problems
  • Facial injuries or infections
  • Birth defects
  • Sleep apnea

Symptoms of Infection

  • Pain that won’t go away with medication
  • Steadily swelling of gums, jaw, or face
  • Redness or oozing of pus from the area
  • Fever that doesn't subside
  • Difficulty opening the mouth or jaw
  • Excessive bleeding for 24 hours
  • Difficulty breathing or swallowing (emergency situation)

After the initial surgery, don’t become worried right away if you notice any of these symptoms. It’s normal to show some blood and swelling after surgery, but that should stop fairly soon with the help of gauze and medication.

You will most likely be numb from the procedure and we will advise you to avoid hard foods for the first day. Pain medication will be administered, and you should take it before you begin to notice pain. A cold compress can also help with swelling and initial pain.

You will be advised not to brush your teeth in the region where the surgery occurred. You may use a prescription mouth rinse, or you can gargle with warm salt water to reduce the swelling. If you follow these directions, you can speed the healing process for a quick recovery.

Don’t fret: a post-surgery infection is not a common development. It happens most often to people who have a compromised immune system or diabetes. Let Dr. Cosman, Dr. McDonough, Dr. Levac and Dr. Korcok know beforehand if you have either of these and we may prescribe an antibiotic to help prevent the spread of infection in the areas of your mouth that get worked on.

If you think you may be experiencing complications after a surgery, please don’t hesitate to reach out to our Kingston, ON office for advice.