Altered Passive Eruption: Hard Tissue

Teeth are composed of two basic, visible parts—the root portion and the crown (enamel-covered) portion. The term crown does not refer to the type of tooth replacement fabricated by a dental laboratory. Rather, it is the part of the tooth that is normally seen when you speak.

The present-day esthetic dental philosophy, demonstrated by people who have beautiful teeth and smiles, shows that there must be a certain amount of enamel-covered tooth visible for an attractive smile. The ratio is about 1.6:1, length to width. Teeth that are shorter than this look progressively less attractive. They look short and stubby. If they are actually worn down from a clenching or grinding problem, this is a different type of problem. But it may not be that the teeth themselves are too short. It could be that there is not enough of the crown of the tooth that can be seen. The remainder that should be seen is covered with gum or gum and bone tissue. This is known as altered passive eruption. It is not entirely clear why this happens. It may become obvious as early as age 14. The teeth may have a pleasing color and be very straight, but they still leave something to be desired because they are too small and too much gum shows when you smile.

This can be a severe cosmetic problem when coupled with the type of lip line that frames the teeth. A low lip line will probably hide most or all of the gum covered part of the tooth, so there is less of a need to correct the defect. A medium or high lip line, especially a high lip line, will show all of the tooth and gum. As the lip line gets higher, the attractiveness of the smile goes down. The situation can be so severe that the patient will train his or her muscles to artificially hold the upper lip stiff or cover the mouth with a hand when smiling. In this way, the short teeth or the great expanse of gum tissue will be hidden from view. It can cause significant psychological problems.

The solution can be easy or complicated, depending on the exact nature of the problem. If there is only a small amount of gum tissue to be removed from a single tooth or multiple teeth, and there is a medium lip line, then the tissue is easily removed with a laser or electrosurgical cutting device. Scalpels and stitches are not needed in small cases. As more gum must be removed and more tooth is exposed, there may be some underlying bone that must be reshaped. Bone removal will be followed, about 2 months later, by the soft tissue removal mentioned earlier. The first surgery must heal long enough for the tissue to reach its final position before the second can be completed. Remember, you are looking at differences of several millimeters to a fraction of a millimeter that will cause the case to be a success or failure. A two-step procedure is better than a one-step procedure.

The biting edges (enamel and/or dentin) of one or more teeth may be reshaped if there is a need not only to lengthen the teeth but also to make it appear that they have actually been placed higher in the smile line. This is for top teeth, of course. If a great deal of tooth must be reshaped to accomplish the desired effect, root or dentin may be exposed, making the tooth sensitive. These teeth will need to be covered with porcelain veneers or crowns to achieve the proper esthetics. Even if only a little amount of tooth is reshaped, the veneers or crowns may be indicated to get the exact appearance you want. We will discuss this with you before you begin treatment. It is important that you know what is being done, how long it will take to complete, and what you will look like when it is finished,

We will make the veneers or crowns and reshape the teeth. We will determine what can be done. We may also do the soft tissue contouring. This is most common. For procedures that involve a reshaping of the bone, you may be referred to our periodontist. Since we will do the restorative treatment, we know exactly where the soft tissue should be. We are the cosmetic specialists. We will establish the final position of the gum line. In extreme cases, the problem will be corrected with a combination of the above-mentioned procedures and orthognathic surgery to reposition the jawbone and teeth. This can be done by our oral surgeon. With a comprehensive examination, we can tell you what is appropriate for you. You do not have to live with an unattractive smile because you have short-looking teeth due to showing too much gum tissue. These problems can be corrected. Let us know what you do not like about your smile or teeth. More than likely, the smile you now have can be made into something you will like to show off.

If you have any questions about altered passive eruption, please feel free to ask us!  

Hymeadow: (512) 250-5012

Jollyville: (512) 346-8424

West William Cannon: (512) 445-5721

Periodontal Disease

Periodontal disease is an infectious process classified according to how much damage has been done to the structures surrounding the teeth, namely the gingiva (gums) and bone. It is an infection in your mouth. It can happen anytime, around your teeth, affecting some or many of your teeth to varying degrees. There are genetic predisposing factors to periodontal disease, and our immune systems play a role in gum health, but it is usually related to how well you are able to keep your teeth clean through proper oral self-care. The better you clean your teeth to remove all the plaque bacteria, the less likely you will be to develop periodontal disease.

Progress of the Disease

The bacteria that cause this disease first cause the gum tissue to become inflamed and pull away from the teeth. As the problem becomes more serious, the bone that supports the teeth also becomes infected and begins to break down and dissolve. The teeth then become loose. Once the bone disappears, it is extremely hard, if not impossible, for new bone to be rebuilt. The damage is permanent and your teeth, the surrounding bone, and your general health will be compromised.

Periodontal disease is classified into several types. The mildest form of this infection will show up in red and swollen gum tissue that bleeds easily. There is seldom any pain involved at this stage. You may also notice that your breath becomes offensive and you feel the need to use mouthwash. Our sense of smell does become immune to the same odor, so we can lose our ability to detect our own offensive, diseased breath. As the disease progresses, the gum tissue becomes more red and swollen, more bleeding can be seen, and the teeth begin to become loose. This tooth mobility is a sign that there is a severe problem. There may still be no pain at this advanced stage. As more and more bone is lost and more teeth become involved in the infection, it becomes harder to treat. At this point, many times, the management of your problem will involve periodontal surgical procedures. If this is the case, you may be referred to a periodontist (gum specialist) for further treatment. Most of the time, periodontal disease starts and continues because of neglect. Brushing and flossing of teeth are not being done effectively on a daily basis. You may have been neglectful in getting your teeth checked and cleaned within the time frame intervals you need. Once we have diagnosed the disease, we will inform you of the problem and suggest treatment. If treatment is not completed, however, the disease will continue to progress. Unfortunately, the disease is quite invisible to most people until severe and possible irreversible damage has occurred.

Solution

If it has been diagnosed in the early stages and has not progressed to bone loss, a proper cleaning (prophylaxis) will solve the problem. Scaling and root planing over multiple appointments may be needed for more advanced cases. In the most advanced cases, periodontal surgery and tooth loss are inevitable. You will receive an estimate of fees for the recommended treatment.

Periodontal disease is a condition that must be treated quickly. We believe that if the infection is aggressively treated in its early stages, conservative periodontal treatment may be possible and effective. Although we do not automatically rule out periodontal surgical intervention, we hope you can either avoid it or reduce the amount you will need.

Successful treatment of your periodontal problem will depend on several factors. But the most important of these is your ability to perform excellent oral self-care—brushing, flossing, and the use of periodontal aids—on a routine, daily basis. Without this, periodontal treatment will fail, and the disease will return. 

Gingival Grafts

What is it?
Periodontal (gum) surgery is most often associated with the removal of soft tissue. But there are times when it is necessary to use soft tissue to cover an area that has too little soft tissue remaining. 

What causes it?
Exposed roots may be due to the improper brushing, periodontal disease, or genetic structure. Brushing too hard and/or with a hard toothbrush can cause the gingival tissue to disappear. The gingival margin (gumline) changes, and one or more millimeters of root structure can be exposed. Active periodontal disease can cause loss of this soft tissue too. 

Why you should care
This exposure can lead to teeth that are very sensitive to temperature changes, root decay, or are quite unsightly. The disfigured soft tissue line can lead to a plaque trap, causing more disease and further problems.

How dentists fix it
Two methods of resolving these problems are free gingival grafts and attached gingival grafts. Both of these are periodontal surgical procedures. In both cases, a local anesthetic will be used to numb the treatment site. 
In the case of an attached graft, gingival tissue is taken from the donor site and moved to the area where root coverage is required. The graft tissue is sutured into place, and a dressing is placed over the treated area. The dressing remains in place for several weeks and is then removed. An attached graft is not completely removed from the donor site. The donor site is adjacent to the site that needs root coverage. There is an incision made in the gum tissue, and the tissue is moved sideways, up, or down and sutured into place. Again, a protected dressing is placed to protect the area while healing occurs. Any anticipated postoperative discomfort is resolved with medication. Most discomfort will come from a free graft donor site.

Who performs the procedure?
A periodontist (gum specialist) usually performs these procedures, as well as other types of grafts and root coverage treatments. After the periodontist examines the areas needing treatment, you will have a better idea of what treatment will consist of, what the appearance may be, anticipated healing times, postoperative discomfort, and cost.

How can you prevent it?

Most patients have heard that they should take better care of their teeth - brush and floss the teeth. Some patients brush too hard and in a back-and-forth motion; and some facial, bony structures and biting forces are such that root exposure happens, resulting in longer looking teeth. The grafting procedures mentioned here can restore the proper gingival marginal architecture, prevent root decay, reduce or eliminate thermal sensitivity, and make your smile look great again.

If you have any questions about gingival grafts, please feel free to ask us.