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When should a filling be replaced?

March 18th, 2026

There is no substitution for a natural healthy tooth. Dental fillings are intended to replace tooth structure and restore a tooth damaged by decay (a cavity) back to its normal function and shape. Silver (amalgam) and tooth-colored (composite) fillings last a long time, though they can develop decay when the integrity is compromised by open margins, fracture, or recurrent decay. In this blog, we discuss the signs and symptoms that indicate your filling may need to be replaced in order to prevent further complications.

Amalgam fillings are made of an alloy (mixed metals) that expands and contracts. They have no bonding properties, and so to place an amalgam filling, the hole in the tooth may need to be larger. Because of these two factors, fractures frequently occur. There are three types of cracks that are commonly associated. Craze lines are superficial with no treatment needed. Fractures extend along other parts of the tooth and may require a filling replacement or crown. Cracks extend toward the root and can require a root canal and crown or, if too severe, extraction.

A filing needs to be sealed to the tooth. If the seal between the tooth and the filling breaks down, food debris and bacteria can seep down under the filling and cause recurrent decay. If the decay is treated early, replacing the filling is adequate. If not, a crown and even a root canal may be needed. The biggest mistake you can make is waiting to do something about a broken or unsealed filling until it is painful. Doing this will only make the treatment more involved and often times more expensive.

Regular dental exams and X-rays are used to evaluate dental fillings. You will not be able to tell on your own when your fillings start to fail. Just as a car mechanic will change the oil, correct your alignment, or change your tires, a dental checkup will help you identify small concerns to fix as you go in order to avoid a critical emergency.

Pay attention to any bite or temperature sensitivity in teeth that have fillings. This can be an indicator for some of the problems listed above. You know your teeth better than anyone. Your observations are most valuable when evaluating a filling for replacement. If replacement is needed, know you are doing what is best to prevent future dental calamities and make an appointment to see Sandra Martin.

Crushing the Ice-Chewing Habit

March 18th, 2026

It's a habit many people have and not only can it be annoying to the people around you, it can be detrimental to your dental health. Chewing ice is so common that it even has its own name, pagophagia. We're not talking about a slushy or shaved ice (although those artificially sugary treats should be avoided too!) but more like the hunks of ice rattling around in the bottom of your glass.

Ice chewing can be a sign of emotional problems like stress or obsessive-compulsive disorder, but it can also be a marker for iron deficiency anemia and other physical problems. Then again, some people just like to have something to chew on. For whatever reason you find yourself chewing on it, it's a habit you need to break.

Chewing on ice can cause:

  • Chipped and cracked teeth
  • Damaged enamel
  • Sore jaw muscles
  • Damage to dental work such as crowns, fillings, or other appliances

If chewing on ice is becoming a problem in your life, don’t hesitate to speak with Sandra Martin about it. But if you find yourself still wanting to chew on something, here are a few alternatives to ice:

  • Baby carrots
  • Celery sticks
  • Sugar-free (xylitol) gum

We know you need to chill sometimes, but chomping down your entire glass of ice is not the way to do it. If you have any other questions on the topic, feel free to talk with a member of our Wake Forrest, North Carolina team. It may be beneficial in solving the issue and helping to remediate any damage to your teeth.

Brushing Tips for Kids

March 11th, 2026

You’re all set for your happy morning and nighttime ritual. You’ve provided your son with his favorite action hero toothbrush and your daughter with her favorite flavored toothpaste. You’ve gotten them into the healthy habit of two minutes of brushing twice each day. You’ve introduced them to flossing. You have favorite brushing songs! Stickers! Gold stars! And, best of all, you’re teaching great brushing techniques.

Kids need the same basic brushing tools and skills as adults. What makes for the best cleaning?

Find the right brush

No matter how cute—or heroic—the brush, it needs to have soft bristles to protect enamel and delicate gum tissue. The head should be a perfect fit for your child’s mouth. And if the handle is easy to grip and hold, you have a winner.

Find the right toothpaste

The bubblegum flavor might appeal to your child, but it’s the fluoride that helps to prevent cavities. Talk to us about the right time to start using fluoride toothpaste and the right amount for your child’s brush.

Teach your child the angles

If your child is too young to brush alone, start geometry lessons early. Holding the brush at a 45-degree angle toward the gums will clean bacteria and plaque from the tooth surface and the gum line. And don’t forget the chewing surfaces and the insides of the teeth. When your child begins brushing on her own, coach her as she learns the best way to clean all the surfaces of her teeth.

Easy does it

Teeth and gums should be massaged, not scrubbed. Brushing too hard can damage not only tender gum tissue, but even your child’s enamel.

Learn to let go

No matter how comfortable and appealing the brush, after three or four months, it’s time for a change. Frayed bristles don’t clean as effectively, and making up for it by brushing harder isn’t the answer (see above). Also, toothbrushes can build up quite a collection of bacteria over time (see below), so a fresh brush is a must!

Everything in its place

A toothbrush should dry thoroughly between uses without touching other brushes. Placing a brush in a plastic container doesn’t let it dry and encourages bacterial growth. And a toothbrush needs its own space—touching toothbrush heads means sharing toothbrush bacteria. The best way to keep toothbrushes as dry and as germ-free as possible is to store them upright, without touching other brushes, in a clean, well-ventilated area.

Rinse and repeat

Your child should rinse his toothbrush before and after using it, and be sure to rinse his mouth as well. That should get rid of any leftover food particles brushing has removed.

Finally, keep up the good work! As you teach your child proper brushing techniques, and make sure she uses them as she grows, you are preparing her for a lifetime of great checkups with Sandra Martin at our Wake Forrest, North Carolina office. Give yourself a gold star—you’ve earned it!

Electric or Manual Toothbrush: Why It Does (and Doesn't) Matter

March 11th, 2026

You live in the golden age of toothbrushes. Until a few decades people used twigs or brushes made from animal hair to clean their teeth: not very soft and none too effective.

Now, you have a choice of manual brushes with soft, medium, or hard bristles. Or you might choose to go with an electric toothbrush instead.

Have you ever wondered whether manual or electric brushes provide better cleaning? Actually, they both do the job. The key is to brush and floss every day, regardless of the kind of brush you prefer.

At our Wake Forrest, North Carolina office, we like to say the best brush is the one you'll use. So if you prefer manual, go for it. If you prefer electric, turn it on.

Both types have their advantages but both types will get the job done as far as removing plaque.

Electric Toothbrushes

  • Provide power rotation that helps loosen plaque
  • Are great for people with limited dexterity due to arthritis or other problems
  • Are popular with kids who think the electric brushes are more fun to use
  • Can come with variable speeds to help reduce pressure on sensitive teeth and gums

Manual Toothbrushes

  • Can help brushers feel they have more control over the brushing process
  • Allow brushers to respond to twinges and reduce the pressure applied to sensitive teeth and gums
  • Are more convenient for packing when traveling
  • Manual brushes are cheaper and easier to replace than the electric versions.

In many ways, the golden age is just beginning. There are already phone apps available to remind you to brush and floss. New apps can play two minutes worth of music while you brush, help you compare the brightness of your smile or help explain dental procedures. Maybe someday we’ll even have programs that examine your teeth after brushing and identify spots you might have missed.

Office Hours: Tuesday — Thursday:
8:00 AM - 5:00 PM (Lunch 1:00pm - 2:00pm)
 
Friday:
8:00 AM - 2:00 PM
 
Saturday:
Closed
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