My Blog
By JC Duncan DDS, PA
August 20, 2017
Category: Oral Health
Tags: sensitive teeth  
The3TopCausesforToothSensitivity

Like other living tissue, your teeth can feel. Dentin, the layer below the enamel, houses fluid-filled conduits that transmit temperature or pressure sensations to a nerve network within the tooth’s inner pulp. It’s so effective that incoming sensations must be buffered — “toned down”— to avoid a painful overload of the nerves. The enamel above the gum line and a bone-like substance called cementum below help do this.

Unfortunately, if teeth lose this protection they can become hypersensitive. This can cause a flash of sharp pain while eating or drinking something cold or hot or just biting down.

There are a number of causes for tooth sensitivity, any of which can influence how we treat it. While you’ll need a dental exam to know for sure, your hypersensitivity will more than likely stem from one of these 3 problems.

Periodontal (gum) disease. This is an infection caused by bacterial plaque, a thin film of bacteria and food particles that accumulates on the teeth due to poor oral hygiene. The inflamed gum tissues weaken and detach from the teeth, causing them to shrink back or recede. This leaves the cementum unprotected, which easily erodes and exposes the dentin to acid and bacteria — and hypersensitivity. Clinically removing the plaque helps the affected gums heal. In extreme cases, the gums may need surgical grafting to regenerate.

Overaggressive brushing. While a lack of oral hygiene can contribute to gum recession, ironically too much hygiene — brushing too hard for too long — can damage your gums and cause them to recede. Brushing really doesn’t require a lot of elbow grease — a gentle scrubbing motion over all tooth surfaces is sufficient to remove plaque. Fine-tuning your brushing will help your gums to recover and heal.

Mouth acid. Although quite strong, enamel has one formidable enemy: acid, which can erode enamel and expose the dentin. Over-indulgence in acidic foods and beverages can make your mouth more acidic; more likely, though, bacterial plaque will again be the culprit, because bacteria excrete an acidic waste product. You can reduce mouth acid with daily brushing and flossing and consuming less acidic foods and beverages.

If you’re experiencing any kind of tooth pain, see us for an examination. We’ll determine the cause and initiate the appropriate treatment to regain your oral health.

If you would like more information on tooth sensitivity, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Treatment of Tooth Sensitivity: Understanding Your Options.”

By JC DUNCAN DDS, PA
August 17, 2017
Category: Dental Procedures
Tags: invisalign   braces   orthodontics  

How Invisalign from your Huntersville dentist can improve your smileinvisalign

Do you want straight teeth? Are you afraid you will have to wear uncomfortable brackets and wires? Are you worried about how long orthodontic treatment takes? If you answered yes to these questions, it’s time to discover the innovative, state-of-the-art orthodontic treatment known as Invisalign. Dr. JC Duncan in Huntersville, NC wants to introduce you to the magic of Invisalign, the virtually invisible way to straighten your teeth discreetly and quickly.

When you choose Invisalign, you are choosing a revolutionary system of clear plastic aligners. You start with the first pair, which you wear for 2 weeks. You move on to the next pair of aligners, which you wear for another 2 weeks. You keep moving to a new pair of aligners every 2 weeks until your treatment is complete.

There are many advantages of Invisalign over conventional brackets and wires. Consider that Invisalign treatment is:

  • Quick, because treatment is complete at 9 to 15 months, compared to years with conventional orthodontic treatment
  • Discreet, because the clear plastic aligners are virtually invisible to people around you
  • Comfortable, because Invisalign aligners are created out of smooth plastic, with no sharp parts to hurt your soft tissue
  • Easy to maintain, because you can remove them for cleaning
  • Healthy, because you can brush and floss your teeth normally after you remove the aligners

Another major benefit of Invisalign is that you can eat whatever you want because you remove the aligners when you eat. Conventional brackets and wires often catch food, making it difficult for to enjoy the foods you are eating. You can return to eating the foods you love with Invisalign.

Invisalign aligners are beautiful, but they are also strong enough to correct an overbite, underbite, crossbite or open bite. They can also correct overlapped teeth and close gaps between your teeth.

If you are considering orthodontic treatment and you want to straighten your teeth discreetly, you want Invisalign! If you want rapid results with minimum effort, Invisalign is perfect for you. For more information about Invisalign, call Dr. Duncan in Huntersville, NC. You can look forward to a straight smile by calling today!

GameSetMatchMilosRaonicSaysAMouthguardHelpsHimWin

When you’re among the top players in your field, you need every advantage to help you stay competitive: Not just the best equipment, but anything else that relieves pain and stress, and allows you to play better. For top-seeded Canadian tennis player Milos Raonic, that extra help came in a somewhat unexpected form: a custom made mouthguard that he wears on the court and off. “[It helps] to not grind my teeth while I play,” said the 25-year-old up-and-coming ace. “It just causes stress and headaches sometimes.”

Mouthguards are often worn by athletes engaged in sports that carry the risk of dental injury — such as basketball, football, hockey, and some two dozen others; wearing one is a great way to keep your teeth from being seriously injured. But Raonic’s mouthguard isn’t primarily for safety; it’s actually designed to help him solve the problem of teeth grinding, or bruxism. This habitual behavior causes him to unconsciously tense up his jaw, potentially leading to problems with muscles and teeth.

Bruxism is a common issue that’s often caused or aggravated by stress. You don’t have to be a world-class athlete to suffer from this condition: Everyday anxieties can have the same effect. The behavior is often worsened when you consume stimulating substances, such as alcohol, tobacco, caffeine, and other drugs.

While bruxism affects thousands of people, some don’t even suspect they have it. That’s because it may occur at any time — even while you’re asleep! The powerful jaw muscles that clench and grind teeth together can wear down tooth enamel, and damage both natural teeth and dental work. They can even cause loose teeth! What’s more, a clenching and grinding habit can result in pain, headaches and muscle soreness… which can really put you off your game.

There are several ways to relieve the problem of bruxism. Stress reduction is one approach that works in some cases. When it’s not enough, a custom made occlusal guard (also called a night guard or mouthguard) provided by our office can make a big difference. “When I don’t sleep with it for a night,” Raonic said “I can feel my jaw muscles just tense up the next day. I don’t sense myself grinding but I can sort of feel that difference the next day.”

 An occlusal guard is made from an exact model of your own mouth. It helps to keep your teeth in better alignment and prevent them from coming into contact, so they can’t damage each other. It also protects your jaw joints from being stressed by excessive force. Plus, it’s secure and comfortable to wear. “I wear it all the time other than when I’m eating, so I got used to it pretty quickly,” said Raonic.

Teeth grinding can be a big problem — whether you put on your game face on the court… or at home. If you would like more information about bruxism, contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Stress & Tooth Habits” and “When Children Grind Their Teeth.”

By JC Duncan DDS, PA
July 21, 2017
Category: Dental Procedures
Tags: smile makeover  
3StepstoaBetterBiteandaMoreAttractiveSmile

Before you consider cosmetic changes to your smile, ask yourself one question: how's your bite? How your teeth are positioned and aligned doesn't just affect their function — it also affects your appearance. A proper bite is foundational to a beautiful smile — and it deserves your attention first.

Here are 3 important steps for addressing your bite problem on your way to a more attractive smile.

Get an orthodontic evaluation. Only a dentist or orthodontist can determine if your teeth are properly aligned and working well with each other — and if not, why. With their knowledge and expertise they'll be able to tell you what specific bite problem (malocclusion) you have and the best treatment to correct it to support any future cosmetic enhancement.

Consider your tooth-movement options carefully. If you have a malocclusion, your dentist or orthodontist may recommend correction before undertaking other cosmetic work. In most cases, you'll have two choices. The first is traditional metal braces, which uses wires held in place and anchored by brackets cemented to the teeth. They're effective, but must be fixed in place and aren't considered attractive. The other choice is clear aligners, which use custom removable plastic trays worn in sequence to gradually move teeth. They're easier for oral hygiene and are hardly noticeable to others, but may not work in every bite situation.

Don't slack on the retainer phase of treatment. The day will come when the braces or aligners come out of your mouth for good. But your realignment project isn't over — you'll need to wear a retainer appliance for a while. Re-aligned teeth can relapse to their former positions, so it's essential you wear a retainer to keep them where they've been moved. Without a retainer, all the time and effort invested in your bite will have been to no avail.

In a nutshell: get the big picture about your bite, choose the treatment best for you and follow through on every phase. The end result will be a solid platform for the smile you've always dreamed about.

If you would like more information on orthodontic treatments, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “The Magic of Orthodontics: The Original Smile Makeover.”

ActressEmmaStoneRevealsHowThumbSuckingAffectedHerTeeth

It's no secret that many of Hollywood's brightest stars didn't start out with perfectly aligned, pearly-white teeth. And these days, plenty of celebs are willing to share their stories, showing how dentists help those megawatt smiles shine. In a recent interview with W magazine, Emma Stone, the stunning 28-year-old star of critically-acclaimed films like La La Land and Birdman, explained how orthodontic appliances helped her overcome problems caused by a harmful habit: persistent thumb sucking in childhood.

“I sucked my thumb until I was 11 years old,” she admitted, mischievously adding “It's still so soothing to do it.” Although it may have been comforting, the habit spelled trouble for her bite. “The roof of my mouth is so high-pitched that I had this huge overbite,” she said. “I got this gate when I was in second grade… I had braces, and then they put a gate.”

While her technical terminology isn't quite accurate, Stone is referring to a type of appliance worn in the mouth which dentists call a “tongue crib” or “thumb/finger appliance.” The purpose of these devices is to stop children from engaging in “parafunctional habits” — that is, behaviors like thumb sucking or tongue thrusting, which are unrelated to the normal function of the mouth and can cause serious bite problems. (Other parafunctional habits include nail biting, pencil chewing and teeth grinding.)

When kids develop the habit of regularly pushing the tongue against the front teeth (tongue thrusting) or sucking on an object placed inside the mouth (thumb sucking), the behavior can cause the front teeth to be pushed out of alignment. When the top teeth move forward, the condition is commonly referred to as an overbite. In some cases a more serious situation called an “open bite” may develop, which can be difficult to correct. Here, the top and bottom front teeth do not meet or overlap when the mouth is closed; instead, a vertical gap is left in between.

Orthodontic appliances are often recommended to stop harmful oral habits from causing further misalignment. Most appliances are designed with a block (or gate) that prevents the tongue or finger from pushing on the teeth; this is what the actress mentioned. Normally, when the appliance is worn for a period of months it can be expected to modify the child's behavior. Once the habit has been broken, other appliances like traditional braces or clear aligners can be used to bring the teeth into better alignment.

But in Stone's case, things didn't go so smoothly. “I'd take the gate down and suck my thumb underneath the mouth appliance,” she admitted, “because I was totally ignoring the rule to not suck your thumb while you're trying to straighten out your teeth.” That rule-breaking ended up costing the aspiring star lots of time: she spent a total of 7 years wearing braces.

Fortunately, things worked out for the best for Emma Stone: She now has a brilliant smile and a stellar career — plus a shiny new Golden Globe award! Does your child have a thumb sucking problem or another harmful oral habit? For more information about how to correct it, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine article “How Thumb Sucking Affects the Bite.”





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