There has been a lot of progress made in the area of filling materials for teeth for small areas of decay. Previously, silver imogen was the major choice for dentists. One downside of these silver fillings is that they are held in mechanically so the dentist has to undercut the preparation to get it to lock in to the tooth, resulting in the removal of good tooth structure to get it to mechanically lock in to the tooth. Because they did have to make a larger opening to put in a silver filling, dentists were many times reluctant to fill the smaller cavities, waiting until the cavities were bigger to put in bigger fillings. The bigger a silver filling gets, the more discrepancy there is in the coefficient of expansion. This means the metallic filling will expand and contract more than the tooth structure it is in when making contact with hot and cold foods. When this happens over an extended period of time, often times the teeth will crack or the margin between the filling and tooth will break down, causing leakage. The biggest problem found with baby boomers who received these big silver fillings when they were young, is most of them needed crowns as they grew older. So now there is a push to perform less invasive dentistry and the composite resins have come a long way from previous generations. The composite tooth color restorations wear more like tooth structure now and they bond to the tooth so the dentist doesn’t need to rely on undercuts. This allows us to remove just the decayed area itself and bond the filling into the tooth, preserving more structural integrity to the tooth.

Because we are taking care of decay at an earlier stage and using filling that bond to the tooth that have a coefficient of expansion that is more similar to the tooth structure, there are fewer cracked teeth caused by the restoration, the fillings are smaller so they last longer, and cosmetically they blend to look more like part of the teeth.

When fillings get to be a certain size, regardless of the material, you are exceeding the limits of that material for it to be an effective restorative product. In this case, porcelain restorations can be shaped and cast to fit in or on the tooth and bond to the tooth. This solution can be effective for teeth that need full coverage to protect where they have been cracked or broken. Often times now we don’t have to do a full crown when we can do different shaped restorations that bond to the teeth and maintain more structural integrity to the tooth.

Bleaching and whitening is a popular service in dentistry. When done correctly, bleaching has evolved to be safe, effective, and to not damage the teeth. We caution patients about using some over-the-counter whitening products. While many are safe, most are not as strong as what we use at our office and some contain high levels of acid. Short term this will make the teeth whiter because it removes some of the minerals and reflects more light, but it is actually damaging to the teeth over long-term use. Some of these products also make the teeth more sensitive. We are careful to use products that cause less sensitivity and bleaching teeth is a routine service.

Patients who are considering restorations to their front teeth, whether composite fillings or crowns, should consider bleaching before the restorative work because bleaching can not be done afterwards.

A large segment of the population does not seek proper dental care because of fear. Today there are several options that make dentistry much more comfortable. For years nitrous oxide has been available, which is an analgesic gas that raises the pain threshold and alleviates anxiety. This is a good solution for many patients and the gas is out of the system within just a few minutes of breathing oxygen afterwards, so a designated driver is not necessary after treatment.

Some individuals are reluctant to even just have their teeth cleaned because of fear. For these individuals we have oral medication that can be taken 45 minutes to an hour before their appointment that will alleviate their anxiety. The medication is strong enough to really do an effective job so these patients will need a designated driver after treatment.

If we are going to be doing significant dentistry on an individual who is not comfortable sitting for an extended amount of time or has an extreme fear, IV sedation is available. This is a safe method of sedating the patient so that they will not have an unpleasant memory of the treatment. They will not be unconscious, as with general anesthesia, so there are not extreme dangers associated with this sedation. Patients can still respond and inform us if something is bothering them so that we can respond accordingly.

Sometimes there is dead or dying tissue in the canal that holds the roots of the teeth which can cause an abscess, sometimes it is painless but many times it can be a painful experience for the patient. A solution is making an opening into the canal that is in the roots and then removing the diseased tissue from the tooth all the way to the tip of the root and cleaning, shaping, and disinfecting the inside of the canal and then sealing with a plastic material and cement so that bacteria can’t get from the bloodstream back into that space again. In the canal, when it gets infected, the first thing that happens is an increase in blood flow, which causes swelling. The swelling cuts off the blood supply and then the blood can’t fight the bacteria. This causes dead and diseased tissue which becomes a continuous source of food for the bacteria. They grow and then an abscess occurs when the bacteria start getting out to the end of the root and that is when a patient will experience a throbbing pain.

Some symptoms can be sensitivity to hot and cold that lingers afterward, spontaneous throbbing pain, and pain upon chewing. These symptoms do not necessarily mean that the patient needs a root canal. For example, cold sensitivity, if it goes away immediately, may be a sign of an irritated but healthy nerve. However, if you have hot on a tooth and it lingers for a long period of time, most of the time that will be a tooth that needs a root canal.

The most common scenario where it is necessary to do a root canal is if there is infection in the root from decay. Occasionally a root canal is also necessary due to trauma, a cracked tooth, and in rare instances during tooth restoration if the canal is to close to the surface of the tooth.

If you have an abscess tooth, and its not hurting too bad, it could be draining in to the sinus, causing chronic sinus irritation. When you look at an x-ray of the upper tooth,  the roots are visible up there and the sinus comes down – usually following a pattern of that root. In other words, the roots are holding that up and when you take the tooth out, there is constant gentle pressure there inside the sinus. The bone reacts to pressure and the bone in the maxilla is softer bone. So it does what we call numatizes that area.: the sinus starts enlarging, getting bigger because it is gently pushing that bone and the bone is resorbing (losing substance).

We see a many individuals who, when their teeth are out, have paper thin bone between the ridge and the sinus. If it’s a denture, then that can be tender all the time when they have sinus problems, and the bone goes away so we don’t have a place to put the implants. If the teeth have been removed and left our for a long time, you can still get implants, but you have to go through a grafting procedure to raise the sinus floor and grow new bone to put implants in. The other thing that is particularly prominent when you have a tooth on the side but the middle teeth are missing, is the sinus comes down and now you have a low spot where the fluids are always sitting. This makes the individual more prone to get infections. 

What are some symptoms that may indicate that the sinus problems you are having may be related to your teeth? If you had a tooth taken out and you want to have it replaced you should do it sooner rather than later so that the sinus doesn’t numatize and you don’t require an extra surgery.