My Blog

By Michael F Cronin, D.D.S
December 08, 2017
Category: Dental Procedures
Tags: dental treatment  
TreatingaYoungPermanentToothRequiresaDifferentApproach

Soon after the primary (baby) teeth begin to give way, the teeth a child will have the rest of their lives start erupting into the mouth. But while they’re permanent, they’re not as strong and developed as they will be in adulthood.

That’s why we treat young permanent teeth differently from older adult teeth. For example, a decayed adult tooth may need a root canal treatment; but this standard treatment would often be the wrong choice for a child’s tooth.

The reason why involves the pulp, the innermost layer of a tooth, which plays a critical role in early development. Young permanent teeth continue to grow in sync with the jaws and facial structure. Most of this growth is in the dentin, the layer between the enamel and pulp, which increases proportionally to the other layers as the tooth matures. The pulp generates this new dentin.

A root canal treatment completely removes the diseased tissue of the pulp. This isn’t a major issue for a mature tooth because it no longer needs to generate more dentin. But it can have long-term consequences for an immature tooth whose growth may become stunted and the roots not fully formed. The tooth may thus become brittle and darkened, and might eventually require removal.

Because of these potential consequences, a root canal treatment is a last resort for a young permanent tooth. But there are modified alternatives, depending on the degree of pulp exposure or infection. For example, if the pulp is intact, we may be able to remove as much soft decayed dentin as we can, place an antibacterial agent and then fill the tooth to seal it without disturbing the pulp. If the pulp is partially affected, we can remove that part and place substances that encourage dentin growth and repair.

Our main goal is to treat a young tooth with as little contact with the pulp as possible, so as not to diminish its capacity to generate new dentin. Avoiding a full root canal treatment if at all possible by using these and other techniques will help ensure the tooth continues to develop to full maturity.

If you would like more information on dental care for children, 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 “Saving New Permanent Teeth after Injury.”

By Michael F Cronin, D.D.S
November 23, 2017
Category: Dental Procedures
CharlizeTheronBackinActionAfterDentalSurgery

When they’re introducing a new movie, actors often take a moment to pay tribute to the people who helped make it happen — like, you know, their dentists. At least that’s what Charlize Theron did at the premiere of her new spy thriller, Atomic Blonde.

"I just want to take a quick moment to thank my dentists," she told a Los Angeles audience as they waited for the film to roll. "I don’t even know if they’re here, but I just want to say thank you."

Why did the starring actress/producer give a shout-out to her dental team? It seems she trained and fought so hard in the action sequences that she actually cracked two teeth!

“I had severe tooth pain, which I never had in my entire life,” Theron told an interviewer from Variety. At first, she thought it was a cavity — but later, she found out it was more serious: One tooth needed a root canal, and the other had to be extracted and replaced with a dental implant — but first, a bone grafting procedure was needed. “I had to put a donor bone in [the jaw] to heal,” she noted, “and then I had another surgery to put a metal screw in there.”

Although it might sound like the kind of treatment only an action hero would need, bone grafting is now a routine part of many dental implant procedures. The reason is that without a sufficient volume of good-quality bone, implant placement is difficult or impossible. That’s because the screw-like implant must be firmly joined with the jawbone, so it can support the replacement tooth.

Fortunately, dentists have a way to help your body build new bone: A relatively small amount of bone material can be placed in the missing tooth’s socket in a procedure called bone grafting. This may come from your own body or, more likely, it may be processed bone material from a laboratory. The donor material can be from a human, animal or synthetic source, but because of stringent processing techniques, the material is safe for human use. Once it is put in place your body takes over, using the grafted material as a scaffold on which to build new bone cells. If jawbone volume is insufficient for implants, it can often be restored to a viable point in a few months.

Better yet, when grafting material is placed in the tooth socket immediately after extraction, it can keep most of the bone loss from occurring in the first place, enabling an implant to be placed as soon as possible — even before the end of a movie’s shooting schedule.

Will Atomic Blonde prove to be an action-movie classic? Only time will tell. But one thing’s for sure: When Charlize Theron walks down the red carpet, she won’t have to worry about a gap in her smile.

If you have questions about bone grafting or dental implants, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Dental Implant Surgery” and “Immediate Dental Implant.”

By Michael F Cronin, D.D.S
November 08, 2017
Category: Oral Health
Tags: tooth decay  
NotYourGranddadsDentalCaretheNewApproachtoToothDecayTreatment

More than likely your great-grandparents, grandparents and even your parents had a common dental experience: when one of their teeth developed a cavity, their dentist removed the decayed portion (and maybe a little more) through drilling and then filled the cavity. In other words, treatment was mainly reactive—fix the problem when it occurred, then fix it again if it reoccurred.

You may have had similar experiences—but the chances are good your dentist’s approach is now quite different. Today’s tooth decay treatment is much more proactive: address first the issues that cause tooth decay, and if it does occur treat it with an eye on preventing it in the future.

This approach depends on maintaining equilibrium between two sets of competing factors that influence how your teeth may encounter tooth decay. This is known as the caries balance (caries being another name for tooth decay). On one side are factors that increase the risk of decay, known by the acronym BAD: Bad Bacteria that produce acid that dissolves the minerals in tooth enamel; Absence of Saliva, the body’s natural acid neutralizer; and Dietary Habits, especially foods with added sugars that feed bacteria, and acid that further weakens enamel.

There are also factors that decrease the risk of tooth decay, known by the acronym SAFE: Saliva and Sealants, which focuses on methods to boost low salivary flow and cover chewing surfaces prone to decay with sealant materials; Antimicrobials, rinses or other substances that reduce bad bacteria populations and encourage the growth of beneficial strains; Fluoride, increased intake or topical applications of this known enamel-strengthening chemical; and Effective Diet, reducing the amount and frequency of sugary or acidic foods and replacing them with more dental-friendly choices.

In effect, we employ a variety of techniques and materials that inhibit BAD factors and support SAFE ones. The foundation for prevention, though, remains the same as it was for past family generations—practice effective oral hygiene by brushing and flossing daily and regular dental cleanings and checkups to keep bacterial plaque from accumulating and growing. Your own diligent daily care rounds out this more effective way that could change your family history of tooth decay for you and future generations.

If you would like more information on preventing and treating tooth decay, please contact us or schedule an appointment for a consultation.

By Michael F Cronin, D.D.S
October 24, 2017
Category: Oral Health
Tags: tooth pain  
WhyYourTeethHurtWillDetermineHowWeTreatThem

Your teeth and gums have a highly sensitive network of nerves. But while it can signal even the most subtle discomfort we may not be able to identify the cause with pinpoint accuracy. As a result, tooth pain could indicate more than one kind of problem including a decayed tooth, root sensitivity, infected gum tissues (like an abscess) or a dying pulp signaled by diseased nerve tissue inside the tooth.

On the other hand, not all tooth pain is the same: it can be dull or sharp, continuous or intermittent. It can feel like a constant, throbbing ache or a sharp wince when you eat or drink something cold or hot, or when you bite down. These differences could point our diagnostic examination in the right direction.

For example, sharp, throbbing pain could indicate deep tooth decay, especially if it suddenly stops. That would likely mean the nerves within the tooth pulp under attack by the infection have died and can no longer transmit pain. The infection, on the other hand is still very much active — this usually requires a root canal treatment (cleaning out the pulp and root canals of diseased and dead tissue and filling the empty spaces) if we’re to save the tooth.

If, however, you’re experiencing sensitivity from temperature or pressure, we could be facing at least a couple of scenarios. For one, your tooth could be fractured. More likely, though, periodontal (gum) disease triggered by bacterial plaque has caused the gum tissues to shrink back (recede) from the affected teeth so that the sensitive dentin layer is exposed and no longer protected by the gum tissue.

If we diagnose gum disease, we’ll need to aggressively remove bacterial plaque from all tooth and gum surfaces. This procedure might require more than one appointment and the possibility of surgery if we encounter deep pockets of infection, especially around the roots. If gum recession is severe you may also need grafting surgery to replace the missing gum tissue or to re-cover the exposed areas of your teeth.

So, knowing the source of tooth pain will direct the course of treatment to follow. With proper treatment, though, the chances are good we can not only restore your teeth and gums to optimum health but we can end the pain.

If you would like more information on treating tooth pain, 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 “Confusing Tooth Pain.”

TheTimelyUseofaPalatalExpanderCouldHelpCorrectaCross-Bite

While crooked teeth are usually responsible for a malocclusion (poor bite), the root cause could go deeper: a malformed maxilla, a composite structure composed of the upper jaw and palate. If that’s the case, it will take more than braces to correct the bite.

The maxilla actually begins as two bones that fit together along a center line in the roof of the mouth called the midline suture, running back to front in the mouth. The suture remains open in young children to allow for jaw growth, but eventually fuses during adolescence.

Problems arise, though, when these bones don’t fully develop. This can cause the jaw to become too narrow and lead to crowding among the erupting teeth and a compromised airway that can lead to obstructive sleep apnea. This can create a cross-bite where the upper back teeth bite inside their lower counterparts, the opposite of normal.

We can remedy this by stimulating more bone growth along the midline suture before it fuses, resulting in a wider maxilla. We do this by installing a palatal expander, an appliance that incrementally widens the suture to encourage bone formation in the gap, which over time will widen the jaw.

An expander is a metal device with “legs” extending out on both sides and whose ends fit along the inside of the teeth. A gear mechanism in the center extends the legs to push against the teeth on both sides of the jaw. Each day the patient or caregiver uses a key to give the gear a quarter turn to extend the legs a little more and widen the suture gap. We remove the expander once the jaw widens to the appropriate distance.

A palatal expander is an effective, cost-efficient way to improve a bite caused by a narrow jaw, but only if attempted before the bones fuse. Widening the jaw after fusion requires surgery to separate the bones — a much more involved and expensive process.

To make sure your child is on the right track with their bite be sure to see an orthodontist for an evaluation around age 6. Doing so will make it easier to intervene at the proper time with treatments like a palatal expander, and perhaps correct bite problems before they become more expensive to treat.

If you would like more information on treating malocclusions, 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 “Palatal Expanders: Orthodontics is more than just Moving Teeth.”





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