Gremban & Gremban Dental

Improving your smile

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  • 865 North Railroad Street
    Eagle River, WI 54521
  • (715) 479-6100

Our Blog

What Are Dental Sealants?

January 28th, 2026

You’re constantly playing defense. Your child spends two minutes in the morning and two minutes at night carefully brushing and flossing with a fluoride toothpaste. You make sure sugary and acidic foods are not a major part of your diets. Your child visits our Eagle River office for regular exams and cleanings. Really, how can a cavity get past all that?

But even with the best defensive practices, you don’t have a level playing field—literally. The tops of our molars and premolars don’t have the smooth, easy-to-clean surfaces that our other teeth have. If you look at the chewing surfaces, you will notice deep grooves which toothbrush bristles have a much harder time reaching.  

Plaque and food particles can become trapped in these grooves (known as pits and fissures), providing perfect conditions for a cavity to develop. That is why cavities are so common in newly erupted molars. Dental sealants protect these teeth from cavities by providing a barrier which smooths out the surface of the tooth and prevents food and bacteria from reaching the molar’s crevices.

Most sealants are invisible plastic resin coatings which we apply in our Eagle River office. Usually the procedure is so quick and easy that no dental anesthetic is required. Each tooth will be examined first. If we find any signs of early decay, we will gently treat that area before beginning.

When the tooth is ready, it will be cleaned and dried. An etching solution will be brushed on to the dry surface to roughen the area a bit so that the sealant will hold to the tooth more effectively. A thin coat of the sealant is then painted on and hardened under a curing light. And that’s it!

Once teeth are sealed, they should be cleaned and flossed just as carefully as before. Regular exams and cleanings are still very important, and we can monitor the condition of the sealant and the sealed teeth. Properly applied, sealants can last from three to five years, or even longer.

Who should consider sealants? Sealants are typically recommended when the permanent molars first erupt. Children’s enamel takes a while to become its strongest, and so these just-erupted teeth are more at risk for cavities. Sometimes Drs. Darrin and Greg Gremban will recommend sealants for primary (baby) teeth if needed. But even adults can benefit—talk to us if you are interested and we will let you know if sealants might be right for you.

Sealants are a simple, safe, and minimally invasive way to prevent cavities. Studies of sealed molars and premolars show a dramatic reduction in cavities compared to untreated teeth. Sealants are one of the most effective ways to defend your teeth or your children’s teeth from tooth decay. And as we’ve all heard—defense wins championships!

Are you at risk for sleep apnea?

January 21st, 2026

If you are one of the more than 12 million North Americans who suffers from sleep apnea, Drs. Darrin and Greg Gremban and our team want you to know we can help. Sleep apnea, a disorder that causes frequent disruption to your body’s sleep patterns, is also potentially dangerous, as it causes abnormal pauses in breathing or very shallow breathing during the night.

For those who suffer from sleep apnea, it may seem impossible to wake up feeling rested and energized. You may, for example, sleep for eight hours, but your body might have only received three or four hours of quality sleep.

Besides losing a good night’s sleep, the risk of heart attack and stroke have been linked to sleep apnea. Other conditions associated with sleep apnea include depression, irritability, high blood pressure, memory loss, and sexual dysfunction.

Sleep apnea occurs when the muscles in the back of the throat relax to the point of inhibiting natural breathing. The muscles used to support the soft palate relax and the airway closes, causing breathing to stop for anywhere from ten to 20 seconds, which is dangerous because it lowers the oxygen level in the brain.

Sleep apnea can affect anyone at any age, and CPAP devices (continuous positive airway pressure), among other treatments, are often prescribed for sleep apnea treatment. Another treatment option is an oral sleep apnea appliance, which positions your mouth in a way that brings your lower jaw forward and opens up your airway for unobstructed breathing.

At Gremban & Gremban Dental, we truly care about the health and well-being of our patients. In fact, we regularly screen our patients for sleep disorders during their regular checkups, and we will refer you to a sleep apnea specialist if an issue is detected. Please don’t hesitate to give us a call at our Eagle River office if you think you have sleep apnea or if you have any questions or concerns!

Can Toothpaste Repair Tooth Decay?

January 14th, 2026

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. 

Talk to Drs. Darrin and Greg Gremban at our Eagle River office about which toothpastes can help restore a healthy balance between the ongoing cycles of demineralization and remineralization. While tooth-repair toothpaste can’t fix cavities, these products can often strengthen demineralized enamel and reverse this earliest stage of tooth decay.

Tooth Protection and Winter Sports

January 7th, 2026

Just because it’s cold out there doesn’t mean you’ll give up keeping fit and active! Winter is the season for some of our favorite team sporting activities, and when you’re donning your protective gear, don’t forget to protect your teeth as well.

  • Basketball

This sport actually tallies one of the highest counts of dental injuries. Running, jumping, and diving for the ball on an unforgiving court can lead to tooth and jaw injuries.  And for every ten men on the floor, it seems like there at least 50 flailing elbows in the paint.

  • Hockey

Notorious for the toll it takes on teeth, hockey is a game of sticks, ice, and whizzing pucks. And when your sport’s penalties include the terms hooking, slashing, and tripping, the more protection, the better.

  • Skiing

When you are flying down the slopes, combining powdery snow and speed, mouth protection is a good idea. This also applies to snowboarding and other snow sports.

  • Wrestling

Grappling and pinning in close quarters can lead to unintended injuries after accidental contact with the mat or your opponent.

Different uniforms, different equipment, and different playing fields, but all these sports have one thing in common—the easiest way to protect your teeth while playing them is with a mouth guard.

Mouthguards generally come in three forms:

  • Over the counter, ready-made appliances. These are available in drugstores and sporting goods stores, but might not be a comfortable fit as they are pre-formed sizes.
  • The “boil-and-bite” option is a mouthguard form placed in hot water. You then bite down to shape it to your mouth and teeth.
  • Custom mouthguards can be fabricated just for you through our Eagle River office. These appliances are designed to fit your individual mouth and teeth, so provide a better fit and better protection. They are also usually more durable and more comfortable. If you wear braces, you definitely need a custom mouthguard to prevent an injury to your mouth or braces caused by an ill-fitting appliance.

Whether you play on a team or pursue individual athletic activities, keeping safe as you keep fit is your first priority. We would be happy to discuss your mouthguard options for any sport, any time of year.

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