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Can Toothpaste Repair Tooth Decay?

February 4th, 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 Dr. Vincent Cardinale and Dr. Chris Moody at our Naples, FL 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.

Caring for Your Invisalign® Aligners

January 29th, 2026

You’ve selected the Invisalign system because of the many benefits Invisalign offers: comfort, convenience, appearance, and even potentially shorter treatment time! And to add to the good news, caring for your Invisalign aligners is easy and uncomplicated. Follow these simple tips to keep your aligners in the best possible shape as you move through the stages of your treatment.

Stay Clean

  • Always brush and floss your teeth before using your aligners so that bacteria and food particles will not have a chance to collect around your teeth while you wear them.
  • When you brush your teeth, be sure to brush your aligners with a separate soft toothbrush and lukewarm water as well.
  • Rinse your aligners whenever you remove them during the day.
  • Soak your aligners as recommended. Use the Invisalign Cleaning System or ask our Naples, FL team for other suggestions to keep your aligners free from odor and bacteria.

Stay Clear

One of the reasons you chose Invisalign is for an almost invisible appearance. Why take a chance on discoloration or scratches that will make the appliance more noticeable? Here are some common mistakes that can affect the color of your aligners:

  • If your aligner has white spots, that might mean plaque build-up. Always rinse your aligner after you remove it and clean it thoroughly night and morning.
  • Brushing with anything other than a soft brush and brushing too hard can cause scratches in the material which might be noticeable. A gentle touch will work to clean and protect your aligners.
  • Eating with Invisalign aligners can cause staining. More important, it can cause the retention of food particles in the appliance, which can lead to dental problems. Finally, aligners are not meant for chewing—they might be damaged or lose their ideal shape even with soft foods. If you are going to be eating or drinking, take your aligners out, give them a rinse, and brush before you replace them. Or stick with water! Water will have no ill effects on teeth or aligners.
  • Only soak aligners in an appropriate solution. Harsh chemicals, colored mouthwashes, and even some toothpastes can dim or discolor the clear plastic.

Talk to Dr. Vincent Cardinale and Dr. Chris Moody about the best products to use and the best methods for taking care of your aligners. After all, making the process of improving your smile as easy and effective as possible is yet another benefit of choosing Invisalign!

Teeth Grinding: Not just a bad habit, but a dental concern

January 21st, 2026

Perhaps you don't even know you grind your teeth. Maybe a spouse or loved one woke you up in the middle of the night and made you aware of what was happening.

For many people, teeth grinding is a habit and a mechanical reflex; when they’re awakened and informed they were grinding their teeth, they have no recollection of it at all. According to the American Dental Association, this is the nightly situation for roughly ten percent of Americans. From young children to the elderly, teeth grinding, known in the dental community as bruxism, is a serious concern.

Many people who grind their teeth in their sleep have no idea they're doing it. In fact, when they wake up in the morning they feel no jaw pain and their teeth are fine: if it hadn’t been for someone telling them about it, the teeth grinding would have gone unnoticed.

There are other people, however, who wake up with jaw pain, shoulder and neck pain, and headaches. Teeth grinding can cause a host of dental complications. From cracked teeth and receding gums to a misaligned jaw, teeth grinding is not something to take lightly.

Preventive measures are the key to combating bruxism, and a visit to Cardinale Dentistry can set you on the path to a healthy and safe night sleep.

The Reasons for Teeth Grinding

There are many reasons for teeth grinding. For some people, it’s a habit they acquired when they were a child and never grew out of. On the other hand, some research claims that the condition is related to stress, anxiety, or some other type of psychiatric issue.

Still other studies point to everything from poor muscle control or over-eating before bed to gastro-esophageal issues. However, the root cause of the teeth grinding is less important than identifying preventive measures against it.

Common solutions to teeth grinding include:

  • Wearing a protective nightguard
  • Stress management techniques
  • Medications and muscle relaxers

When you make an appointment with Dr. Vincent Cardinale and Dr. Chris Moody at our Naples, FL office, we will assess your situation and determine what the best course of action is. Teeth grinding is a dental concern that can cause serious health issues down the road, so be sure to take preventive measures today.

Children's Dental Milestones

January 14th, 2026

First word, first step, first day of school—these firsts are milestones every parent celebrates. And one of the earliest and most precious milestones is your baby’s first real smile! 

Keep that smile beaming and healthy from infancy to young adulthood with the help of dental milestones. These breakthrough events mark significant stages in oral development, and are a great guide to understanding, protecting, and supporting your child’s path to adult oral health.

  • First Tooth

Baby’s first tooth often arrives around the age of six months. And this is the time to start cavity prevention, with twice daily gentle brushing with a soft-bristled, child-sized toothbrush. Talk to Dr. Vincent Cardinale and Dr. Chris Moody or your child's pediatrician to learn how and when to brush and how much and what kind of toothpaste to use.

By the age of three, toddlers typically have all of their 20 baby teeth, and these little teeth are essential to children’s health. They help kids chew and eat, assist speech development and pronunciation, and act as placeholders so adult teeth can erupt in the proper place. Keep your child’s baby teeth their healthiest by partnering with the dental team at Cardinale Dentistry in Naples, FL.

  • First Visit to the Dentist

Once that first tooth has come in, or around age one, it’s time to bring your little one to the dentist for a first visit. Your dentist will do a careful exam to see if your child’s teeth and jaws are developing as they should, check the health of the teeth, and answer your questions about brushing, flossing, toothpaste, teething, pacifiers, thumb-sucking, or any other concerns. 

Early visits are important. They allow you and your child to establish a “dental home”: a place where the dental team is familiar and comforting, and where regular preventative care will help keep young smiles their healthiest.

  • First Lost Tooth/First Permanent Tooth

Around age six, most children start to lose baby teeth, typically in the order in which they arrived. Losing a baby tooth is a big step for children and might be a bit scary. You can celebrate this milestone with a visit from the Tooth Fairy, or a certificate, or a new toothbrush in your child’s favorite color. 

As the permanent teeth come in, continue to encourage twice daily brushing and flossing, and consider proactive treatment with dental sealants. Even when children have learned to brush properly, and brush twice each day, it can be hard for kids to remove all the plaque and food particles from the grooved chewing surfaces on top of molars. That’s why molars are much more vulnerable to decay than any other teeth. 

Around the time your child’s first permanent molars erupt, the team at Cardinale Dentistry might suggest sealants. Sealants protect the chewing surfaces of the molars from food particle and plaque buildup. This safe and invisible protective coating, usually a plastic resin, is applied in the office and typically lasts from three to five years. 

  • First Orthodontic Visit

Dentists and orthodontists recommend an orthodontic examination by age seven (or earlier, if you have any concerns). At this point, children have a mix of primary and permanent teeth, allowing an orthodontist to assess tooth spacing and alignment and the way the jaws fit together. 

Your orthodontist might find no issues with your child’s teeth or bite. Or, perhaps, follow-up appointments might be scheduled to determine if and when future treatment is advisable. Sometimes, because some problems can be treated more easily when your child is young, early intervention with a fixed or removeable appliance is recommended right away. 

Having an orthodontic plan in place helps ensure that children benefit from the most effective and timely treatment at any stage of their development.

  • Orthodontic Treatment

Orthodontic treatment commonly begins in early adolescence (ten to 14) when most or all of the permanent teeth have erupted. The facial and jaw bones are still growing in preteens and young teens, which makes it easier to reposition teeth and guide jaw alignment.

More treatment options are available than ever before—and today’s braces, clear aligners, smaller and more comfortable appliances, and even 3D technology make treating malocclusions and misalignments more efficient than ever before.

A healthy bite and properly aligned teeth are a foundation of lasting oral health. Orthodontic treatment helps prevent decay, gum disease, jaw pain, and even early tooth loss. And, of course, the value of your child’s increased self-confidence is impossible to overestimate!

  • Wisdom Teeth

Wisdom teeth, or third molars, generally start to erupt in the late teens or early twenties and often have a harmful effect on oral health.

Erupting or impacted wisdom teeth can push neighboring teeth out of position, damage adjacent tooth roots, and cause inflammation and infection in gum and bone around the wisdom tooth. For these reasons, preventative extraction is often recommended. 

If your teen shows any symptoms of erupting or impacted wisdom teeth—irritated, swollen, or bleeding gums, bad breath, jaw pain or swelling—a visit to the dentist is in order.

As parents, you do your best to guide your child’s journey from infancy to healthy adulthood. Each dental milestone marks a new stage in your child’s oral health journey, and new ways for you to encourage and protect that oral health. Use these milestones to set your child up for a lifetime of good dental habits—and a lifetime of healthy smiles!