What is a cavity?

November 12th, 2025

Cavities are the reason why most people fear going to the dentist. But they’re also the reason you should be visiting Dr. John Zarrella and Dr. Peter C. Rider on a regular basis.

Specifically, cavities are the breakdown of teeth caused by acid from food, bacteria, and plaque that inhabit the inside of the mouth. While many people simply think that cavities only form on top of a tooth, Dr. John Zarrella and Dr. Peter C. Rider and our team at Zarrella Dentistry want you to know they can actually form on the sides along the gum line and between the teeth, too. This acid will eat away at the tooth, forming a soft hole.

Anybody, either children and adults, can get cavities. In fact, according to the Centers for Disease Control and Prevention, in the U.S. alone about 16 percent of all children ages six to 19 have untreated cavities, and about 24 percent of adults 20 to 64 years old have them. This is detrimental to overall oral health, because cavities have a tendency to grow over time, potentially spreading to other teeth and causing increased oral pain, possibly even affecting the nerve.

That's why it's important to ensure that you're visiting Zarrella Dentistry at least once every six months, so that cavities can be found and filled before they become too problematic and painful. Typically, they're found by doing a routine teeth cleaning, though X-rays or further examination may be necessary to determine the full extent of a cavity. Cavities are treated by removing the area of the tooth where decay has set in and rebuilding the tooth with a metal filling. If the cavity is too large, however, more extreme measures may be necessary, such as placing a crown or performing a root canal.

As we noted above, cavities are why people dread going to the dentist, but also the reason everyone should see the dentist every six months. Additionally, brushing twice daily, flossing, and cutting down on sugar-packed foods can reduce the risk of developing cavities.

For more information on how to best care for your teeth and why it's important to visit the dentist twice a year, please give us a call at our convenient Ashland office today!

Tips for Cold and Flu Season

November 6th, 2025

It’s peak cold and flu season, a time to be especially conscious about your health. We have some suggestions to help you navigate this contagious time of year, with bonus tips for a healthy smile.

  • Wash Up! 

Bacteria and viruses can live for hours and even days on non-porous surfaces like doorknobs, phones, and keyboards. That’s why it’s so important to wash your hands before touching your mouth, nose, and eyes, before brushing and flossing, and before you cook or eat. Washing with plain soap and water will eliminate most germs.

Bonus Tip: Keeping your fingers away from your mouth does more than prevent the transmission of bacteria and viruses. Fingernail biting can damage enamel. Prolonged thumb or finger sucking can affect tooth and jaw alignment. Delicate gum tissue can be injured or infected by broken or dirty fingernails. If you’d like to break harmful oral habits, talk to Dr. John Zarrella and Dr. Peter C. Rider for suggestions.

  • Stay Hydrated

Hydration supports healthy skin, helps regulate blood pressure and body temperature, and is vital for digestion and other bodily functions. Proper hydration is also important for a healthy immune system and healthy mucous membranes, which will help you fight off colds and flu. Talk to your doctor about your ideal amount of daily hydration, whether from water, other fluids, or water-rich foods.

Bonus Tip: We also need to be hydrated to produce healthy levels of saliva. Saliva washes away food particles and bacteria and helps neutralize enamel-eroding acidity in the mouth.

  • Eat Healthy Foods

A healthy diet is crucial for a healthy immune system, with foods such as lean proteins, fruits, vegetables, whole grains, and low-fat dairy products.

Bonus Tip: A balanced diet is good for your oral health, too! We need vitamins A and C for healthy gums and oral tissues, minerals like calcium and phosphorus to keep tooth enamel strong, and dairy products enriched with vitamin D, which enables our bodies to absorb the calcium we get in our diet.

What happens if you become ill despite your precautions? 

  • Reduce the Chance of Infecting Others

If you’re ill, you can help stop the spread of germs by limiting contact with other people, covering your mouth and nose when you cough or sneeze, washing your hands frequently, and cleaning the common surfaces in your house which harbor germs. 

Bonus Tip: Sharing isn’t caring when it comes to colds and flu. No matter how close you are to your family members or roommates, your toothbrushes shouldn’t be close at all. Let your brush air-dry in an upright position away from other brushes to avoid contamination. 

  • Be Choosy about OTC Medications

If you take sugary cough or cold medications, brush or rinse afterward. Sugar-free cough drops are better for your teeth than sweet lozenges which bathe your enamel in sugar as you let them dissolve. 

Bonus Tip: Don’t bite into cough drops! You risk chipping or cracking a tooth.

  • Keep Up with Healthy Habits

Be sure to keep hydrated, especially if you’ve been suffering from vomiting or diarrhea. Get the sleep you need to recover. Eat a well-balanced diet.

Bonus Tip: Stay on top of your dental hygiene and brush and floss as usual, with one caution. Vomiting brings up harsh stomach acids which weaken the mineral bonds keeping tooth enamel strong, so brushing right away can be abrasive. If you throw up, rinse your mouth with water and wait 30 minutes before brushing to allow your enamel to come back to full strength.

  • Stay Home When You’re Sick

You’ll get better faster with proper care, which includes getting the rest you need to recover. And you won’t be sharing germs with the people around you.

Bonus Tip: If you have an appointment scheduled with your dentist, reschedule if necessary. Your dental team at Zarrella Dentistry will be happy to accommodate you to prevent the spread of germs and to make your dental procedure a more comfortable one.

It’s the height of cold and flu season in Ashland, but you’re not alone! Talk to your doctor about immunizations and other preventative measures. If you do become ill, follow your physician’s recommendations. And if you have any dental concerns, your dental team is prepared with timely advice—at any time of year.

Let’s Make Halloween Treats Less Tricky!

October 29th, 2025

If the scariest part of Halloween in Ashland is trying to figure out which treats are braces-friendly and which treats are braces-frightful, we have a fiendishly simple suggestion to help keep your brackets and wires safe from harm: ghost any treats which are chewy, crunchy, hard, or sticky!

It’s no mystery how certain candies and treats can cause trouble for your braces. The pulling effect of chewy candies like caramels can pull a bracket right off your tooth. Biting into a hard candy can break a wire. Crunchy treats can get stuck under wires and damage braces. Sticky foods pull on your wires and brackets.

Broken braces are no fun. Loose or detached brackets can be uncomfortable. Bent or broken wires can cause sores and cuts inside your mouth. Damaged braces mean extra trips to the orthodontist for repairs, and can even delay your treatment if the damage is significant or you can’t see your orthodontist right away. 

And chewy, crunchy, hard, and sticky treats have a haunting effect on your dental health as well. These foods stick to brackets and wires and can be difficult to brush or floss away. Cavity-causing bacteria feast on the sugars and food particles left behind, putting you at greater risk for cavities.

So, what specific treats should *vanish* from your candy collection this Halloween? Here are some of the most damaging to braces: 

  • Chewy caramels, taffy, fruit chews, gum, and licorice
  • Crunchy candied apples, caramel popcorn, peanut brittle, nuts, and popcorn balls 
  • Hard and hard-shelled candies, lollipops (especially with gum centers), and jawbreakers
  • Sticky gummies, jellybeans, and candy corn

But it’s not all frightful news! There are many spook-tacularly good treats which you can enjoy without putting your braces in jeopardy:

  • Peanut butter cups
  • Soft chocolate bars (with no nuts or caramel hiding inside!)
  • Soft cupcakes
  • Pudding cups
  • Mint patties
  • Ice cream
  • Sugar-free gum (if it’s okay with Dr. John Zarrella and Dr. Peter C. Rider and your orthodontist)

And here are a few good tricks for keeping your teeth and gums healthy, whether or not you wear braces:

  • Brush and floss after treats. 
  • Enjoy sweets in moderation. 
  • Skip the sour candies. Acidic foods can damage tooth enamel.
  • Eat treats with a meal. Eating increases saliva production, which helps neutralize acids and wash away food particles.

Don’t let a damaged bracket or wire spoil your Halloween fun. Talk to the team at Zarrella Dentistry to learn which candies are a treat for both you and your braces and you’ll stay on the fast track to a boo-tiful, healthy smile!

Be Good to Your Gums

October 22nd, 2025

You brush and floss thoroughly twice a day. You have regular checkups. Everything seems fine on the periodontal radar. Sometimes, however, even healthy gums can become sensitive and irritated. Is it something you did? Maybe! Here are some common causes of gum irritation and sensitivity that you might not be aware of.

  • Brushing Bravado

One of the most important tools for gum health is one we use at least twice a day—the simple toothbrush. Two minutes at night and two in the morning reduce the bacteria and plaque that lead to serious gum disease, known as periodontitis. And while preventing tooth decay and gum disease are the primary goals of brushing, let’s also protect delicate gum tissue from injuries and irritation caused by too-forceful brushing.

Try using a brush with soft bristles and brushing with short strokes and gentle pressure, especially if you know you have a tendency to be a bit heavy-handed. Massaging rather than scrubbing will clean teeth and gums just fine.

  • Fierce Flossing

Just because we can use dental floss to slice cakes or cookie dough logs doesn’t mean we should apply the same pressure to our gums! While a firm sawing motion seems like the obvious way to clean between teeth and gums, you can actually cause irritation and bleeding that way.

Insert the floss between your teeth carefully, bring it to the gumline, and move the floss with gentle pressure up and down and around the tooth surface. This technique will make sure that you remove food particles and plaque from beneath the gumline without causing your gums any trauma. Ask us about the best flossing techniques—we know them all.

  • Appliance Aches

You know how helpful your braces/retainers/mouth guards/dentures are. You just wish that your helpful appliance was a little less irritating to sensitive gum tissue.

This is a problem that often disappears as you get used to your new appliance. But if pain or irritation persists or gets worse, give us a call. We want to make sure your appliance fits properly, and make any necessary adjustments to ensure your comfort.

  • Peroxide Problems

Most home whitening kits use peroxide-based gels or treated strips to remove surface stains from the teeth. Those same bleaching agents that make enamel whiter can also cause gum sensitivity and irritation. If you use whitening strips or gel trays, be careful to keep the peroxide solution away from gum tissue. But because these systems are one-size-fits-all, that is often easier said than done.

If you have sensitive gums, one solution is a professional office whitening. We’ll check on your gum (and tooth) health first, and monitor and protect your gums throughout the procedure. If you still want to whiten at home, we can create custom trays for you that will provide more complete exposure to the whitening solution for your teeth, and less exposure for your gums, than over-the-counter products.

  • Still Smoking?

Studies have shown a strong link between gum health and smoking and other forms of tobacco use. Smokers are much more likely to suffer from gum disease than non-smokers, and those who have smoked for a long time, or who smoke heavily, have an even higher risk of developing periodontal disease. Some studies suggest that smokers don’t respond as well to treatment as non-smokers.  Unfortunately, it appears that smoking and tobacco use help mask the obvious symptoms of gum disease (redness and bleeding), which could lead smokers to delay getting treatment. If you smoke, talk to us about ways to quit.

We talk a lot about periodontal health because it is so important. Periodontitis can lead to infection, loss of bone around the tooth, and even eventual tooth loss. If you are suffering from any of the signs of gum disease—swelling, redness, bleeding, pain—give our Ashland office a call. Whether it’s as simple as making a few lifestyle changes, or a problem requiring professional dental treatment, being proactive with your dental care is more than good for your gums—it’s good for your health!

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