Porcelain Inlays and Onlays

Porcelain

When a tooth has been moderately to extensively destroyed by decay, previous drilling, or fracture but there is still sufficient enamel remaining, one innovative way it can be restored is with a porcelain inlay or onlay. An inlay is a restoration in which a portion of occlusal (biting) surface is replaced with porcelain. An onlay will restore a larger portion of the biting surface of the tooth. These are considered very conservative restorations. The porcelain allows an excellent esthetic result. It is attached to the tooth using a bonding procedure, allowing it to become very strong. It can be used with wonderful results in small, medium, and even with large restorations lasting more than 12 years, relatively trouble free.

A dental laboratory is involved in the construction of the restoration. There is a 2- to 3-week delay while the inlay or onlay is being made, so the tooth must have a temporary restoration in place during that time.

They have some disadvantages. They are moderately to very expensive to make and place. They take two appointments to complete. They must be adjusted and polished well or they can cause wear of the opposing enamel, similar to a porcelain fused to metal crown. Of course, we make sure they are adjusted and polished to begin with. Porcelain biting surfaces cause more rapid wear of opposing natural teeth, especially in the posterior areas where a metal biting surface may be advised.

Advantages include the excellent esthetics, high strength, predicted longevity, and conservative preparation, 

that is, less drilling than a crown. If the porcelain does chip, it can be repaired. However, you should not chew ice cubes, “jaw breakers”, or any other hard candy with these or any other type of restoration.

For those who want the strongest, longest-lasting, conservative restoration that very closely matches a tooth, porcelain is possibly the best choice. Once it is finished, the tooth, if cared for properly, should not have to be restored again for years. It does allow the conservation of most of the natural tooth.

Resin

Resin inlays and onlays are used in the same areas as the porcelain inlays and onlays. They are very natural in appearance and, like porcelain, are bonded into place. They are considered an extremely conservative restoration. Two appointments, approximately 2 weeks apart, are required to fabricate the inlay/onlay. The tooth will be protected with a temporary filling while the final restoration is being made. The wear of the resin is similar to that of enamel. So unlike porcelain, it will not have a tendency to wear the opposing natural tooth structure.

The resin may be considered slightly “weaker” than the porcelain. However, porcelain is more brittle and more difficult to repair. The difference in strengths is not significant. The resin is more forgiving and is more easily finished or repaired and resin is easier to work on.

With both types of materials, porcelain or resin, you can develop decay on unrestored surfaces, so excellent oral self-care is required. Neither material is advised for patients who have a bruxing (grinding) or clenching habit unless a protective mouthguard is constructed for you.

Unless you have a preference, we will select the most appropriate material for your dental needs. Cost of each is comparable. Both types are excellent choices and are considered highly conservative in the amount of drilling needed.

If you have any questions about porcelain or resin inlays and onlays, please feel free to ask us at any of our office locations:

Hymeadow: (512) 250-5012

Jollyville: (512) 346-8424

West William Cannon: (512) 445-5721

Prevention of Decay

Dental Decay

Dental caries (decay) is a bacterial infection, first of the enamel, then of the dentin of the tooth. The tradition in dentistry has been to surgically remove the diseased portion of the tooth by “drilling” out the decay and then filling the resulting hole in the tooth with some inert material. As most adults know, this procedure will be performed over and over again when new decay begins or when the filling (often silver) breaks or the tooth fractures.

Would it not be better to eliminate the cause of the infection and thus not be forced to have big holes drilled in the teeth? We believe the bacterial cause of the infection should be addressed.

Preventing the Risk of Dental Decay

There are several positive steps that you can take to reduce your risk of dental decay. First, all of the active decay in your mouth should be treated immediately. Next, all the teeth that would benefit from sealants should be treated. This will prevent bacteria from reaching into the pits, fissures, and grooves that normally exist on the occlusal (biting) surface of teeth. Any stray bacteria that may still be in the sealed area are effectively cut off from their food source and become inactive. Although sealants are most effective on teeth that have not been previously restored, they can be successfully placed on teeth filled with bonded fillings.

The infection can be treated with antimicrobials. We believe that the use of a fluoridated mouthrise twice daily or use of a prescription fluoridated dentifrice as directed provides great advantage. Not only is fluoride effective against bacteria but it also creates an environment that promotes remineralization of slightly damaged enamel. The decay process is reversed and the tooth may not have to be drilled. We may also prescribe a chlorhexidine mouthrinse, an antimicrobial oral rinse that has a great effect on Streptococcus mutans.

Your diet and oral self-care are important in dental decay prevention. When you eat junk food and drink sugary liquids, your teeth are more prone to decay. The more frequently you snack, the more prone your teeth will be to decay. If your brushing and flossing are not effective, your teeth will be more prone to decay. When you can’t brush after a meal, at least rinse your mouth with water within 15 minutes to dilute the acids forming from the ingested food or drink. If you have a diminished salivary flow, take frequent sips of water during the day to help dilute the acids produced by the bacteria.

If you have a continuing problem with active decay, we recommend more frequent preventative recare appointments. It has been repeatedly shown that patients who have good oral self-care and maintain a recare interval of 3 to 4 months have many fewer dentally related (cavities or gum disease) problems.

The routine 6-month recare interval is no longer our recommended schedule. That interval was based on a 50-year-old philosophy that never had any scientific basis! Times have changed. Present dental practice is based on proven scientific information. You might need to have your teeth cleaned by the hygienist twice each year or you may need to be seen more frequently.

For certain individuals, we also suggest testing the oral bacterial levels to determine the magnitude and presence of a Streptococcus mutans infection and to determine your risk level for future dental disease.

Congenitally Missing Teeth

Some of us will have 32 teeth develop during our lifetime. This has been considered a normal complement of teeth. More often than not, however, we do not develop a full set of 32 teeth. It is quite common for people to be missing one or more of the third molars (wisdom teeth). And as the jaw sizes of modern human beings have decreased in size, it is not unusual that there is no room for the proper placement of the third molars in a mouth, and they must be extracted.

Not as common, but not at all unusual, is a condition in which certain permanent front teeth never develop. When permanent teeth don’t develop, they are considered to be congenitally missing. The term for this condition is congenitally missing teeth. When this happens, it is frequently one or both of the upper lateral incisors, which are smaller teeth on either side of the two top front teeth. Less often, the permanent eyeteeth (canines) or premolars don’t develop.

The problem that results from congenitally missing teeth involves the space where the tooth (teeth) should have been. The teeth nearest the space shift into different positions to fill the gap, often resulting in a crowded smile—when in fact, some teeth are missing!

The problems resulting from missing permanent teeth can be reduced or eliminated with early detection and a plan for future treatment. The usual treatment involves orthodontics to move the permanent teeth into better position or keep the permanent teeth in the correct location. Because we treat missing lateral incisors so often, the treatment routine is well established. The best aesthetics, the most natural look, will be achieved by leaving the adjacent permanent central incisors and canine teeth in their customary places.

When there are missing lateral incisors, it is likely that we will recommend moving the eyeteeth (canines) into their positions. This will keep the bone in the missing tooth space at the proper level. We will then recommend moving the eyeteeth back into their proper positions. This may sound like extra treatment, but it is needed to keep the bone at the proper height for future tooth replacement treatment.

The sequence of treatment is orthodontics as early as necessary to maintain the space. The further the teeth have shifted from this original position, the more orthodontic treatment will be necessary. Then, while the child and mouth are growing, a removable replacement tooth is made. This appliance is worn until the teeth are ready to receive the implant or bridge, after age 18 or so when the mouth and dental structures are more mature.

When the permanent teeth further back in the mouth are missing, it is common for baby teeth to be retained in these spaces. Sometimes the baby teeth can last for years, but they do not have the root structure to remain stable over a lifetime. Because the retained baby teeth are meant for a small mouth, they do not have the right size, shape, or function as the permanent teeth. When lost, they can be replaced with implants or a bridge. Your own particular situation will determine the best course of treatment. 

Wisdom Teeth (Third Molars)

Human beings have more teeth than they actually need: four more teeth, to be exact. The third molars (wisdom teeth) are the last teeth on each side and in each arch of the mouth. If we don’t need them, why do we have them? Hundreds of thousands of years ago, our ancestors didn’t look a great deal like we do today. They had smaller bodies but larger and more powerful jaws. Their diet dictated this jaw structure and number of teeth. Our ancestors ate tougher and more abrasive types of food. It wasn’t cooked well, and it wasn’t ground up well. There were a lot of hard grains and foods that required lots of chewing. Big jaws were capable of holding more teeth for this chewing.

Today, we don’t need the heavy grinding capacity that early humans had. Food is easier to eat, less abrasive, and much softer. Evolution is reacting (slowly) to this fact by decreasing the size of our jaw bones and chewing muscles. The human jaw that once comfortably held 12 molars (32 teeth total) is now often only large enough to hold eight molars (28 teeth total). Unfortunately, our jaws are getting smaller faster than our wisdom teeth are disappearing. The wisdom teeth often do not have enough room to grow properly. Eventually, thousands of years from now, humans will not have wisdom teeth. They have lost their function and are gradually disappearing, just like the appendix.

Since the jaw is too small (for most people) to accommodate the third molars, they come into the mouth partially, poorly positioned, or not at all. They can be fully erupted, partially erupted, a soft tissue impaction, partial bony impaction, or full bony impaction. If teeth come in well and you are able to keep them clean, we leave them alone. If they are crowded or poorly positioned and cannot be kept clean, they are like an accident waiting to happen. Decay and gum infection are likely to result. These teeth are usually removed—ideally before they begin to cause big problems with the second molars that are directly ahead of them. Teeth that are partially erupted should always be removed: there is too much opportunity for gum infection to begin. If the teeth cannot be cleaned, chronic painful inflammation may occur (pericoronitis). The earlier they are removed, the better your healing will be.

Less complex extractions (fully erupted teeth or partial soft tissue impactions) can be done by a general dentist. We will refer difficult extractions to an oral surgeon for treatment. Depending on the type of extraction and the medical history of the patient, the extractions may be done in an office or in the hospital. This will be determined after viewing radiographs of the teeth. Having all four wisdom teeth out at the same time is a common practice. Postoperative discomfort can be minimal to extreme—in the case of difficult full bony impactions. Antiinflammatory and pain relief medications are prescribed appropriately.

We do not need wisdom teeth to eat well. If they need to come out, it is better they come out (1) before they cause problems with the adjacent teeth that you really need and (2) when you are younger and heal well. If you need to have one wisdom tooth taken out, also have the opposing wisdom teeth removed. When a tooth does not meet an opposing tooth, it “super erupts” or continues to grow out of the normal position. When left for some time, the remaining tooth can develop decay and gum disease and cause the same thing to happen to the tooth in front of it. 

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. 

Sealants and Fluoride: Benefit to Adult Patients

Dental decay can develop at any time, regardless of a person’s age. A change in diet, change in lifestyle, change in oral self-care habits, the use of prescription medications, or a change in systemic health due to the normal aging process can all affect the caries (decay) susceptibility. Few people remain completely free of decay. Proper oral self-care on your part and properly spaced dental hygiene prevention appointments will go a long way to reduce the opportunity to have new decay begin.

As you age, it is possible that some of your gum tissue will recede, exposing the root surfaces of your teeth. This gum recession can occur from improper brushing (brushing too hard with a hard toothbrush) or as a result of past periodontal problems. The more a tooth and root are exposed, the greater is the surface area you will have to keep clean. Sometimes the teeth with exposed roots are very hard to keep clean. These roots may be sensitive to temperature changes and are often times uncomfortable to brush. Decreased salivary flow helps to create a breeding ground for bacteria to accumulate on the enamel and especially on the root surface. And root decay usually progresses quite quickly!

Goal of Prevention

Your goal should be to keep the dentist from drilling your teeth. Any reasonable preventative measure that is available should be seriously considered. When the dentist drills, you lose. When the dentist does not drill, you win,

Dental Sealants

Although sealants are primarily designed for children, adults who have a history of active decay should consider having sealants placed on the posterior (back) teeth where indicated. We will tell you where it is possible to place the sealants. Even if you have not had a cavity for a long time, consider the application of a sealant as an inexpensive insurance policy for your teeth. Perhaps you would never get decay on the unsealed surfaces. But, just as you insure your home against destruction by fire, a sealant insures the tooth surface from decay. Preventative measures may allow you to avoid having your teeth drilled. You win!  

Topical Fluoride

For a similar reason, we advise the use of topical fluoride treatments for adults. The effectiveness of systemic and topical fluoride in preventing decay is well documented. When a cavity first starts, an application of fluoride might (depending on when it is used) reduce or eliminate the need for drilling.

An alternative to the fluoride treatment we can provide in our office is a daily rinse. If you can rinse with an over-the-counter mouthrinse containing fluoride every night as directed on the rinse label, you do not need the office topical fluoride treatment. If you cannot rinse daily as instructed, you will need the benefit from a stronger office-applied topical fluoride treatment. Your oral health will benefit most from small increments of fluoride that are applied daily rather than one large concentration every 6 months. However, only you know whether you will be faithful to your rinsing routine. When in doubt, let us do it here.

If you have been a patient of Omni Dental Group, you know that we stress prevention of dental disease above all else. Sealants and topical fluoride treatments are two of the more preventative dental measures that we believe will significantly enhance your oral health. 

We Won!

2017 Spectrum Award by City Beat News 

Today, Omni Dental Group was awarded the 2017 Spectrum Award by City Beat News! This award is given for excellence in customer service over multiple, consecutive years. In addition, we have earned a 5 star rating through City Beat News. We want to thank our patients for their unwavering loyalty throughout our 23 wonderful years in business!

Check out our award here: https://awards.citybeatnews.com/starpage/view/92558