Posts for tag: dental implants
You’re considering dental implants and you’ve done your homework: you know they’re considered the best tooth replacements available prized for durability and life-likeness. But you do have one concern — you have a metal allergy and you’re not sure how your body will react to the implant’s titanium and other trace metals.
An allergy is the body’s defensive response against any substance (living or non-living) perceived as a threat. Allergic reactions can range from a mild rash to rare instances of death due to multiple organ system shutdowns.
A person can become allergic to anything, including metals. An estimated 17% of women and 3% of men are allergic to nickel, while 1-3% of the general population to cobalt and chromium. While most allergic reactions occur in contact with consumer products (like jewelry) or metal-based manufacturing, some occur with metal medical devices or prosthetics, including certain cardiac stents and hip or knee replacements.
There are also rare cases of swelling or rashes in reaction to metal fillings, commonly known as dental amalgam. A mix of metals — mainly mercury with traces of silver, copper and tin — dental amalgam has been used for decades with the vast majority of patients experiencing no reactions. Further, amalgam has steadily declined in use in recent years as tooth-colored composite resins have become more popular.
Which brings us to dental implants: the vast majority are made of titanium alloy. Titanium is preferred in implants not only because it’s biocompatible (it “gets along” well with the body’s immune system), but also because it’s osteophilic, having an affinity with living bone tissue that encourages bone growth around and attached to the titanium. Both of these qualities make titanium a rare trigger for allergies even for people with a known metal allergy.
Still, implant allergic reactions do occur, although in only 0.6% of all cases, or six out of a thousand patients. The best course, then, is to let us know about any metal allergies you may have (or other systemic conditions, for that matter) during our initial consultation for implants. Along with that and other information, we'll be better able to advise you on whether implants are right for you.
If you would like more information on the effects of metal allergies on dental implants, 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 “Metal Allergies to Dental Implants.”
You’ve probably heard a lot of great things about dental implants as a replacement for missing teeth. But there’s one aspect about implants that may cause you hesitation about choosing them: the cost. If you have multiple teeth to be replaced, the expense of implants may seem even further beyond your means.
But before you decide against what’s widely considered the premier tooth replacement option, it would be beneficial for you to look at their cost from a long-term perspective. You may find implants are actually a cost-effective investment in both your oral health and your smile.
So, what sets the dental implant apart from other options? One of its most important attributes is its life-like appearance. Not only does the visible crown resemble the color, shape and texture of natural teeth, the implant’s placement can so precisely mimic the appearance of natural teeth emerging from the gums, it’s indistinguishable from the real thing.
They’re not just attractive, but also durable. This is due in large part to titanium, the most common metal used in implants, which has the unique quality of being osseophilic, or “bone-loving.” Bone cells naturally attract to titanium and over time will grow and adhere to the implant in a process known as osseointegration. As a result, the implant’s attachment in the jaw becomes strong and secure.
This durability gives implants a greater longevity on average than most other replacement options. If you thus compare the total costs for an implant (including maintenance) over its projected life with the costs of other options like dentures or fixed bridges, you’ll find implants may actually cost less over time.
That may sound affordable for one or two missing teeth — but what about several? Replacing multiple teeth individually with implants can be quite high; but implants are also versatile — just a few strategically placed implants can support a fixed bridge or overdenture. This “hybrid” solution combines the affordability of these other options with the stability of implants.
Before weighing your options, you should first undergo a complete dental examination to see if you’re a candidate for implants. From there we can help you decide whether implants are the right investment for your health and your smile.
If you would like more information on dental implants, 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 “Dental Implants 101.”
Some patients who wear dentures face a kind of Catch-22: their denture fit may have loosened and become uncomfortable over time due to continued bone loss, yet the same bone loss prevents them from obtaining dental implants, a superior tooth replacement system to dentures.
But there may be a solution to this dilemma that combines the stability of implants with a removable denture. A set of smaller diameter implants — “mini-implants” — can support a removable denture with less bone than required by a conventional implant.
Like all living tissue, bone has a life cycle: after a period of growth, the older bone dissolves and is absorbed by the body, a process known as resorption. The forces generated when we bite or chew are transmitted by the teeth to the jawbones, which stimulates new bone formation to replace the resorbed bone. When the teeth are lost, however, the stimulation is lost too; without it, resorption will eventually outpace bone growth and repair, causing the bone mass to shrink.
Removable dentures also can’t supply the missing stimulation — bone loss continues as if the dentures weren’t there; and due to the compressive forces of a denture, bone loss accelerates. As the jawbone structure used to originally form the denture’s fit eventually shrinks, the denture becomes loose and difficult to wear. It’s possible to adjust to the new jaw contours by relining the dentures with new material or creating a new set of dentures that match the current bone mass. Without adequate bone, fixed crowns or bridges anchored by conventional implants may also be out of the picture.
On the other hand, mini-implants with their smaller diameter need less bone than the traditional implant. A few strategically placed within the jaw are strong and stable enough to support a removable denture. One other advantage: these mini-implants can be installed in one visit with local anesthesia and usually without the need for incisions or stitches.
If you would like more information on dentures supported by mini-implants, 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 “The ‘Great’ Mini-Implant.”
If you have a problem tooth we’ve recommended removing, those “Tooth in one day” ads—a tooth removed and an implant placed at the same time—might start to pique your interest. But there are a few factors we must consider first to determine if this procedure is right for you. Depending on your mouth’s health conditions, you may need to wait a little while between tooth extraction and implantation.
Here are 3 timing scenarios for receiving your implant after tooth removal, depending on your oral health.
Immediately. The “tooth in one day” scenario can be much to your liking, but it could also be tricky in achieving the best results. For one, the implant may fit too loosely—the bone around the socket might first need to heal and fill in or undergo grafting to stimulate regeneration. In other words, immediate implant placement usually requires enough supporting bone and an intact socket. Bone grafting around the implant is usually needed as well.
After gum healing. Sufficient gum coverage is also necessary for a successful outcome even if the bone appears adequate. To guard against gum shrinkage that could unattractively expose too much of the implant, we may need to delay implant placement for about 4 to 8 weeks to allow sufficient gum healing and sealing of the extraction wound. Allowing the gums to heal can help ensure there’s enough gum tissue to cover and protect the implant once it’s placed.
After bone healing. As we’ve implied, implants need an adequate amount of supporting bone for best results. When there isn’t enough, we might place a bone graft (often immediately after tooth extraction) that will serve as a scaffold for new bone to grow upon. Depending on the degree of bone loss, we may wait until some of the bone has regenerated (about 2 to 4 months) and then allow the natural process of bone cells growing and adhering to the implant (osseointegration) to complete the needed bone growth. If bone loss is extensive, we may need to wait until full healing in 4 to 6 months to encourage the most stable outcome.
If you would like more information on the process of obtaining dental implants, 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 “Implant Timelines for Replacing Missing Teeth.”
There are plenty of good reasons to quit smoking. Here's one more if you're considering replacing a missing tooth with a dental implant: smoking increases your risk of implant failure.
By and large, dental implants are the most reliable and durable tooth replacement option, with more than a 95% success rate after ten years. But that still leaves a small percentage that fail — and twice as many of those failures are in smokers than in non-smokers.
To understand why, we need to look at how smoking affects oral health. Besides burning and thickening the surface skin cells inside the mouth, inhaled smoke can also damage salivary glands and lead to dry mouth. Reduced saliva creates an environment friendly to bacteria, which increases the risk of infection and disease.
The nicotine in tobacco also restricts the myriad of blood vessels that course through the teeth and gums. The resulting reduced blood flow deprives teeth and gums not only of nutrients but disease-fighting antibodies. The mouth takes longer to heal and can't fight infection as well.
The key to an implant's success lies with its titanium post imbedded in the jaw bone to take the place of the tooth root. Titanium attracts bone cells, which grow and adhere to the post over a period of time and create a stronger hold. But the health effects of smoking inhibit this process. Furthermore, slower healing caused by smoking increases the risk of infection, the number one cause of early implant loss.
If you want to improve your chances for a successful implant — not to mention improve your overall health — you should quit smoking. The prospect of a dental implant could be a useful incentive to enroll in a smoking cessation program.
At the very least we suggest you stop smoking a week before implant surgery and then for at least two weeks after to help promote good healing. And you should pay close attention to your daily oral hygiene — brushing and flossing at least once — and regular, semi-annual dental visits for cleanings and checkups.
Smoking can harm your health. If you're considering an implant, it could also harm your chances of a successful outcome.
If you would like more information on dental implants, 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 “Dental Implants & Smoking.”