Gregory E. Oxford, DDS, MS, PhD  &  Isabell G. Oxford, DMD
100 Whetstone Place, Suite 308, St. Augustine, FL 32086  (904) 810-2345

Archive:

Tags

Posts for tag: dental implant

By Oxford Dental Associates
November 26, 2020
Category: Oral Health
Tags: dental implant  
AlthoughChallengingCleaningAroundImplantsBoostsTheirLongevity

Daily oral hygiene and regular dental cleanings help keep your natural teeth and gums healthy and disease-free. But they're also a priority with dental implants. Here's why.

Unlike other restorations, an implant replaces both a tooth's crown and root, the latter by way of a titanium metal post imbedded into the jawbone. Bone cells grow and adhere to the metal surface, forming a secure and lasting hold.

But although quite durable, this hold differs significantly from natural teeth, which are actually held in place by a tough, elastic tissue called the periodontal ligament. The attachment of the ligament's tiny fibers to both tooth and bone secure the tooth in place, as well as supply it and the surrounding gums with nutrients and defensive antibodies to fight infection.

Implants don't have this relationship with the periodontal ligament. The tissues around an implant are thus susceptible to an aggressive form of periodontal (gum) disease called peri-implantitis. This kind of gum infection can progress rapidly, leading eventually to bone loss and possible failure of the implant.

Daily brushing and flossing of both natural and implant-supported teeth lowers the risk of gum disease, particularly peri-implantitis. It's also imperative that you undergo regular cleanings, at least every six months, with your dentist or dental hygienist.

These, however, won't be the typical cleanings performed on natural teeth. Hygienists don't use metal cleaning implements to remove plaque and tartar deposits because they can scratch the metal materials of the implant and crown. These microscopic scratches can then attract bacteria that trigger gum infections. Instead, they'll use instruments made of plastics or resins.

Hygienists also rely heavily on ultrasonic equipment that vibrates plaque loose on or around implants, which are then flushed away with water. The tips used with these instruments are also typically made of nylon or plastic sheathing.

Even with the extra hygiene care needed, implants still enjoy a 95% or higher survival rate after ten years. You can ensure your implants achieve that level of durability by keeping them clean and seeing your dentist at the first sign of a gum infection.

If you would like more information on maintaining 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 Implant Maintenance.”

TalkWithYourDentistAboutAntibioticTherapyBeforeImplantSurgery

Dental implants are far and away the most “tooth-like” restoration available today for missing teeth. Not only do they look real, they also mimic dental anatomy in replacing the tooth root.

To install an implant, though, requires a minor surgical procedure. And, as with any surgery, that includes a slight risk for a post-surgical infection. For most patients this isn't a major concern—but it can be for people with certain medical conditions.

One way to lessen the risk for implant patients whose health could be jeopardized by an infection is to prescribe a prophylactic (preventive) antibiotic before implant surgery. The American Dental Association (ADA) recommends the measure for patients with artificial heart valves, a history of infective endocarditis, a heart transplant and other heart-related issues.

In the past, their recommendation also extended to people with joint replacements. But in conjunction with the American Academy of Orthopedic Surgery (AAOS), the ADA downgraded this recommendation a few years ago and left it to the physician's discretion. Indeed, some orthopedic surgeons do recommend antibiotic therapy for patients before surgical procedures like implantation for up to two years after joint replacement.

These changes reflect the ongoing debate over the proper use of antibiotics. In essence, this particular argument is over risks vs. benefits: Are pre-surgical antibiotics worth the lower infection risk for patients at low to moderate risk in return for increased risk of allergic reactions and other side effects from the antibiotic? Another driver in this debate is the deep concern over the effect current antibiotic practices are having on the increasing problem of antibiotic-resistant bacteria.

As a result, dentists and physicians alike are reevaluating practices like prophylactic antibiotics before procedures, becoming more selective on who receives it and even the dosage levels. Some studies have shown, for example, that a low 2-gram dose of amoxicillin an hour before the procedure can be effective with much lower risks for side effects.

If you're considering dental implants and you have a medical condition you think could be impacted by the procedure, discuss the matter with your dentist and physician. It may be that pre-surgical antibiotics would be a prudent choice for you.

If you would like more information on getting 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 “Implants & Antibiotics.”

By Oxford Dental Associates
November 22, 2019
Category: Dental Procedures
Tags: dental implant  
GettingaNewToothinOneDayWillDependonYourBoneHealth

If you've thought the ads for a “new tooth in one day” seemed too good to be true, we have…sort of good news. You can get a new “tooth” in one visit, but only if your dental situation allows it.

The restoration in question is a dental implant, a metal post (usually titanium) surgically imbedded into the jawbone. They're especially durable because bone cells naturally grow and adhere to an implant's titanium surface, a process called osseointegration. Over time this process creates a strong bond between implant and bone.

Usually, we allow a few weeks for the implant to fully integrate with the bone before attaching the visible crown. With “tooth in one day,” though, we attach a crown at the same time as we install the implant, albeit a temporary crown. It's more aesthetic than functional, designed to avoid biting forces that could damage the implant while it integrates with the bone. When that process finishes, we'll install a permanent porcelain crown.

The health of your supporting bone and other structures will largely determine whether or not you're a candidate for this “tooth in one day” procedure. Your bone must be sufficiently healthy, as well as the gums surrounding the implant and the tooth's bony socket.

If, on the other hand, you have significant bone loss, gum recession or socket damage, we may first need to deal with these, usually by grafting tissue to the affected areas to stimulate new growth. Your implant, much less a temporary crown, will likely have to wait until the affected tissues have healed.

The bone can also be healthy enough for implant placement, but might still need time to integrate with the implant before attaching any crown. Instead, we would suture the gums over the implant to protect it, then expose and attach a permanent crown to the implant a few weeks later.

Obtaining even a temporary crown the same day as your implant can do wonders for your appearance. A more important goal, though, is a new tooth that you can enjoy for many, many years. To achieve that may mean waiting a little longer for your new beautiful smile.

If you would like more information on restoring missing teeth with 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.”

By Oxford Dental Associates
September 03, 2019
Category: Dental Procedures
Tags: dental implant  
YourQuestforaDentalImplantMightBeInterruptedbyBoneLoss

Years ago, disease or trauma robbed you of one of your teeth. At the time you might have opted for an affordable solution, like a partial denture. But now you'd like to restore that missing tooth with a dental implant, the most life-like tooth replacement available.

That's a great decision. But there may be a hiccup along the way to your new implant: the state of the underlying jawbone. Implants need a certain amount of bone for proper placement. If not enough is present, that may cause an interruption in your plans—and that could be a real possibility if your tooth has been missing for some time.

That's because, like other living tissues, bone has a growth cycle: Old bone cells die and dissolve, while new cells form to take their place. In the jaw, the force produced by teeth during chewing helps to keep this growth process in the bone functioning at a healthy pace.

When a tooth goes missing, though, so does this chewing stimulation. A lack of stimulation can slow the growth rate for that part of the bone and its volume can diminish over time. It's possible for a quarter of the bone volume to be lost within the first year after losing a tooth.

If you've experienced that level of bone loss, we may not be able to place an implant—yet. You might still have a few options. For one, we could attempt to regenerate some of the bone through grafting. Bone material grafted into the affected area can serve as a scaffold for new bone cells to form and adhere. Over time, this could result in a sufficient amount of regenerated bone to support a dental implant.

Another possibility might be to install a smaller diameter implant like those used to support removable dentures. Because they're smaller they require less bone than standard-sized implants. They're not for every situation, though, and are best suited for situations where aesthetics isn't a priority.

To know what your options are regarding an implant-based restoration, you'll need to undergo a thorough evaluation of your oral health, including supporting bone. Depending on your situation, you may still be able to renew your smile with this premier tooth replacement option.

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 After Previous Tooth Loss.”

By Oxford Dental Associates
May 06, 2019
Category: Uncategorized
Tags: dental implant   bridge  
YourTeenagernotReadyforanImplantHeresWhatWeCanDoInstead

Losing a tooth can be traumatic, but a dental implant can dramatically turn that experience around. Providing functionality, life-like appearance and durability, implants stand out as the premier restoration for lost teeth.

For adults, that is. An older child or teenager with a missing tooth may need to wait a few more years for an implant. The reason: jaw development. A person's jaws, particular the upper jaw, continue to grow with most growth completed by early adulthood. Natural teeth with their periodontal attachments develop right alongside the jaw.

But because an implant attaches directly to the jawbone, its position is fixed: it won't change as the jaw grows and may gradually appear to sink below the gum line. That's why we wait to place an implant until most of jaw maturity has occurred after full jaw maturity. For females, we try to wait until 20 years of age and for males, usually 21 years of age. These are guidelines as some people mature faster and some slower, so a discussion with your dentist or surgeon is necessary to make an educated decision.

While we wait, we can install a temporary replacement for a child's or teenager's lost tooth, usually a partial denture or fixed modified ("Maryland") bridge. The latter affixes a prosthetic (false) tooth in the missing tooth space by attaching it to the back of natural teeth on either side with bonded dental material. It differs from a traditional bridge in that these supporting teeth aren't permanently altered and crowned to support the bridge.

During the time before implants we should understand that the area where the implant will be placed will undergo some bone deterioration, a common consequence of missing teeth. Forces generated as we chew travel through the teeth to stimulate renewing bone growth all along the jawbone. But with a lost tooth the chewing stimulation ceases at that part of the bone, slowing the growth rate and leading to gradual bone loss.

Fortunately, the titanium posts of dental implants stimulate bone growth as bone cells naturally grow and adhere to their surfaces. Before then, though, if the bone volume is diminished, we may need to graft bone material to stimulate bone growth that will enlarge the jaw bone enough for an implant to be placed.

It usually isn't a question of "if" but "when" we can provide your child with an implant for their missing tooth. In the meantime, we can prepare for that day with a temporary restoration.

If you would like more information on dental 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 “Dental Implants for Teenagers.”