Posts for: April, 2015
Dental implants are widely recognized as the best tooth replacement option available. For most people, though, it’s a long process: after a tooth is extracted the socket is allowed to heal and fill in with new bone before implant surgery: that can take anywhere from two to five months. Afterward, there’s usually a two– to three–month period after the implant is placed before the permanent crown (the visible tooth) can be attached.
Without adequate bone present the implant’s long-term stability might be compromised. Furthermore, the implant’s durability is dependent upon bone growth around and attaching to its titanium post after surgery in a process known as osseo-integration. These two considerations indeed serve a critical function in the implant’s ultimate success.
In recent years, however, a variation to this traditional implant process has emerged that allows for immediate implantation right after extraction. Besides combining extraction and implantation into one surgical procedure, immediate implants minimize the disruption to a person’s appearance (especially with visibly prominent front teeth) when combined with a provisional crown.
Immediate implants joined together that replace a full arch of teeth can receive biting forces and succeed. Individual implants that replace single teeth, however, won’t work in all situations and must be undertaken with care to ensure long-term success. Because there may be less available bone, the implant must fit snugly within the socket to maintain as secure a hold as possible. The surgeon must also take care not to damage too much of the gum and bone tissue when extracting the tooth, which could affect both the integrity of the implant and its appearance in the gum line.
Temporary crowns may be attached during the implant surgery, but they’re installed for appearance’ sake only. For individual crowns, they must be designed not to make contact with the teeth on the opposing jaw to avoid generating biting forces that will cause the implant to fail and stop the bone-healing process that occurs with osseo–integration.
If you’re considering dental implants, it’s important to discuss with us which type of procedure, traditional or immediate, would be best for you, and only after a comprehensive examination of your mouth and jaw structure. Regardless of the approach, our goal is to provide you with a smile-transforming restoration that will last for many years to come.
If you would like more information on the dental implant process, 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 “Immediate Implants.”
Professional basketball player Lamar Odom is sometimes known as “the candyman” because of his notorious fondness for sweets. But when his sweet tooth finally caught up with him — in the form of a mouthful of decayed teeth — the six-foot-ten-inch, 230-pound hoops star admitted that he had been avoiding treatment… because he was afraid of going to the dentist!
It took two Kardashians (Khloe and Kim) and a painful toothache to finally persuade Odom to sit in the chair. Once he did, it was found that he needed a root canal, a wisdom tooth extraction, and several fillings. Yet the fretful forward sailed through the whole set of procedures in a single visit, and walked out with a big smile afterward. How did his dentists make that happen?
Put it down to the “magic” of sedation dentistry. With anxiety-relieving medications that can be delivered orally (in pill form or by gas) or intravenously (into the bloodstream), the techniques of sedation dentistry can help even the most fearful patients get the dental care they need. That’s good news for about 50 percent of the population, who admit they’re at least somewhat afraid of the dentist — and even better for the 15 percent who avoid dental care completely due to their fear.
Dentists have a number of ways to ease apprehensive patients through a dental visit. An oral anti-anxiety drug can be given in pill form about an hour beforehand. Nitrous oxide (sometimes called “laughing gas”), which is administered by a mask placed over the mouth or nose, may also be used to relieve anxiety. The calming effects of these medications help make any nervousness melt away — and in many circumstances, mild sedation is all that’s needed to ease the fear.
For lengthier or more complex procedures, intravenous (IV) sedation may be recommended. Unlike deeper (unconscious) sedation, IV sedation doesn’t cause “sleep.” Instead, it puts you in a comfortable semi-awake state, where you can still breathe on your own and respond to stimuli… but without feeling any anxiety. And when the procedure is over, you probably won’t have any memory of it at all.
IV sedation can be administered by dentists who are specially trained and equipped with the proper safety equipment. While sedation is being provided, you will be monitored at all times by a dedicated staff member; when it’s over, you will rest for a while as the medication quickly wears off. Then (as is the case with oral sedation), you’ll need another person to give you a ride home.
Does sedation dentistry really work? Lamar Odom thinks so. “I feel so much better,” he said when his 7-hour procedure was over. “I feel like I accomplished something.”
Besides reduced biting and chewing function, a missing tooth can cause an embarrassing inhibition to healthy social interaction. This can be especially so for teens who greatly value peer relationships and acceptance.
Be that as it may, we typically discourage a permanent replacement for teens with a missing tooth, particularly dental implants. While we value a patient’s psychological needs, the long-term effect on dental health may be too great to advise otherwise.
The effect we’re concerned with involves jaw growth and development. Although a person’s permanent teeth have usually all erupted by early adolescence, the jaws continue to grow until the late teens or early twenties. Natural teeth can adapt to this growth because the periodontal ligament that holds them in place allows for incremental tooth movement. The teeth move in response to jaw growth and are thus able to maintain their proper relationship and alignment in the jaw as growth occurs.
Dental implants, on the other hand, are imbedded into the jaw bone: they, therefore, can’t move like natural teeth and thus can’t adjust their position with jaw growth, particularly the upper jaw as it grows forward and down. This can result in the implants appearing as though they are left behind or retreat into the jaw. It can also affect the position of the gums and inhibit their growth around the implants.
It’s best then to hold off implants and other permanent restorations until the jaw has finished developing. That, however, isn’t always easy to determine: specialized x-ray diagnostics may help, but it’s not an exact science. Your input as a parent will also be helpful, such as whether you’ve noticed the end of growth spurts (not changing clothes or shoe sizes as often) or your child’s recent similarity in appearance to other adult members of your family. It thus becomes a judgment call, based on examination and experience, as to whether it’s safe to proceed with implants — and may require erring on the side of caution.
In the meantime, there are temporary restorations that can improve appearance while you wait for the appropriate time to undertake a permanent restoration. Two of the most useful are removable partial dentures (RPDs) or a bonded bridge, a less invasive form of the traditional bridge. With a proper assessment we can advise you on which option is your best choice.
If you would like more information on tooth restorations for teenagers, 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 “Teenagers & Dental Implants.”
While tooth decay and periodontal (gum) disease destroy more teeth than any other causes, both of these diseases are largely preventable with proper oral hygiene and dental treatment. It’s more than possible, then, to enjoy a lifetime of healthy, disease-free teeth.
But even with healthy teeth, the effects of aging will cause tooth wear over time. And although we can’t prevent the aging process from occurring altogether, there are steps we can take not to accelerate the process.
Most tissues, including bone and teeth, have a growth cycle in which older cells are broken down (known as catabolism), removed and replaced by newer cells (anabolism). As we develop during childhood, the growth phase exceeds breakdown; when we reach adulthood, the two phases come into equilibrium. But as we age, breakdown will gradually overtake growth. This aging effect results in, among other outcomes, tooth wear.
“Normal” wear appears to be greatest — and most visible — along the biting surfaces of the teeth. The forces generated when we bite or chew causes enamel to erode over time. Unfortunately, you can accelerate this process through bad oral habits: clenching or grinding teeth, often times at night while you sleep, as well as habitually chewing on hard objects like nails or pencils.
Normal forces generated when we bite or chew are actually beneficial for dental health — they help stimulate bone growth. But when they exceed their normal range as when we clench or grind our teeth, they can increase tooth wear and cause other problems such as diminished function or changes in appearance, such as a shortened facial height.
To slow the rate of wear, it’s important to modify any behaviors that may be contributing to it. In many cases an occlusal night guard worn while you sleep helps prevent teeth clenching. You may also need assistance with stress management, a major trigger for these kinds of habits, through biofeedback therapy or counseling.
If you’ve already encountered excessive wear, bonding techniques using colored composite resin, veneers or crowns that attach directly to the teeth can restore lost function and rejuvenate the appearance and color of your teeth. We can perform a “smile analysis” to determine if one of these techniques is right for you to help you regain a more youthful and attractive smile.
If you would like more information on aging and tooth wear, 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 “How and Why Teeth Wear.”