Posts for: July, 2015
In the realm of restorative dentistry, dental implants are king. A dental implant can replace a tooth with a permanent, life-like restoration with a solid reputation for durability.
Implants are also known for one other quality — variety. Not all implants are alike, and they have varied applications for use. Available in various shapes and sizes, they can be used for a single tooth or as part of a multiple tooth bridge or overdenture. And while their basic architecture is the same, you also have two options for how the permanent crown (the visible tooth portion) attaches to the implant: screwed or cemented.
A screw attachment can securely fasten a crown to an implant without the need for cement; it also allows for easy removal for repair or replacement should the crown become damaged or worn. On the other hand, it could pose a cosmetic problem — even though the access hole for the screw may be covered with a tooth-colored filling, it could still be distinguishable from the rest of the crown. There’s also a slight risk of the crown chipping around the access hole.
A crown cemented to the implant won’t have this cosmetic issue with an access hole, and will look just like a natural tooth. But unlike a screwed crown, removing a cemented crown can be more difficult. The cement may also cause gum inflammation and potential bone loss in sensitive patients.
The condition of your mouth, the type of implant you’re receiving and other circumstances will all factor into determining which method is best for you. If we’re “immediately loading” the crown (meaning we’re affixing a temporary crown to the implant immediately after placement in the jaw), then the screw method may be more advantageous. Aesthetically speaking, though, a cemented crown may be a better option in terms of final smile appearance.
But whichever method is used, you’ll still benefit from what implants do best — help you regain the function lost from a missing tooth and change your smile for the better.
If you would like more information on your options 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 “How Crowns Attach to Implants.”
“Don’t panic” is your first priority when faced with a sudden mouth injury. Of course, that may be easier said than done when you or a family member has just experienced a chipped, fractured or even dislodged tooth.
It helps, therefore, to have some idea beforehand on what to do and, especially, when to do it. You should think in terms of immediate, urgent and less urgent injuries: a tooth completely knocked out of its socket requires immediate action — within 5 minutes of the injury; a tooth that’s moved out of its normal position but still in the socket is an urgent matter that needs professional attention within 6 hours; and a chipped tooth is less urgent, but still needs to be seen by a dentist within 12 hours.
As you may have gathered, the most important thing you can do when a dental injury occurs is to contact our office as soon as possible. If for some reason you can’t, you should visit the nearest emergency center.
There are also some actions you should take for a knocked-out permanent tooth because there’s a chance it can be replanted in the socket if you act within 5 minutes of the injury. First, rinse the tooth with cold, clean water (bottled or tap) if it’s dirty. Be sure to handle it gently, avoiding touching the root. Grasping the crown-end with your thumb and index finger, place the tooth into the empty socket and push it firmly into place. Apply light but firm pressure with your hand or a wad of wet tissue to make sure it doesn’t come out. Don’t worry about correct alignment — we can adjust that later during examination.
If the tooth is chipped or broken, try to locate the broken pieces — it may be possible to re-bond them to the tooth. You should store them in a container with milk or the injured person’s saliva (the same can be done for a knocked out tooth if reinserting it isn’t practical). The broken pieces should then be transported with the injured person to emergency treatment.
Taking these actions may not ultimately save a traumatized tooth, but they will certainly raise its chances for survival.
If you would like more information on preventing and treating dental injuries, 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 Field-Side Guide to Dental Injuries.”
Considering the costs, many people view replacing a back tooth as less important than a more visible front tooth. They’re rarely seen, so who will notice?
You might, eventually. A missing back tooth can set off a chain reaction of problems that can affect your overall dental health. Besides playing an important role in chewing food, back teeth also redistribute most of the chewing force away from the front teeth. Their absence can also affect the bite: adjacent teeth to the missing one will tend to migrate toward the open space, causing them to tip and rotate into an improper position. This can cause an increase in tooth mobility, excessive wear and erosion, and endanger their survival in the long run.
To avoid these and other problems you should consider some form of replacement. Most dentists prefer a dental implant for its life-like appearance and durability, and because its titanium post has a natural affinity with bone. Bone cells will grow around and permanently adhere to the implant, which may stop and even reverse bone loss in some cases.
Implants, though, require a certain amount of bone structure initially to anchor and position properly. If you have inadequate bone and don’t want to bone graft the area, the next best option is a fixed bridge, in which the missing tooth is replaced with an artificial crown known as a pontic. The pontic is fused between two support crowns that are permanently affixed to the natural teeth on either side of the missing tooth (also known as abutments). While fixed bridges restore function and inhibit tooth migration, they require the natural tooth supporting the bridge to be reduced to accommodate the crowns placed on them. This permanently alters them and places them at higher risk for future nerve damage, gum disease and decay.
One final option is a removable partial denture (RPD). Although RPDs restore function and improve appearance, their movement within the mouth may place additional stress on the teeth that hold them in place. This movement over time could damage or loosen them.
We can discuss which option is best for you after a complete dental exam. The important thing, though, is to replace the back tooth as soon as possible — doing nothing could cost you much more in the long run.
If you would like more information on tooth replacement, 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 “Replacing Back Teeth.”
We’re all susceptible to gum disease when we fail to practice effective daily brushing and flossing. But you may have a greater risk of gum disease (and more severe forms of it) if any of the following categories pertain to you:
Aging. Gum disease risk naturally increases with age. We can lower the risk with an effective daily hygiene regimen, along with a minimum of two office cleanings and checkups each year. Brushing and flossing removes bacterial plaque and food particles which accumulate on tooth surfaces. The longer plaque remains in contact with gum tissues, the greater the chances of infection.
Pregnancy. Although women tend to take better care of their teeth than men, they still face unique issues that increase their risk. During pregnancy, for example, certain hormone levels rise, which cause the gums to become more responsive to bacteria. Other hormonal fluctuations throughout a woman’s life, including taking certain drugs for birth control or during menopause, can cause similar situations.
Family History. You could be at higher risk if members of your immediate family have a history of gum disease. Researchers estimate that 30% of the U.S. population has a genetic predisposition to the disease; it’s also possible for family members to transfer bacteria to other family members by way of saliva contact or shared eating utensils.
Smoking. Nicotine, the active ingredient in tobacco smoke, causes changes in the blood vessels of the mouth that could inhibit the flow of antibodies (produced by the body to fight infection) in the bloodstream. As a result, smokers experience more rapid disease development and greater detachment between teeth and gums than non-smokers.
Other Inflammatory Conditions. A number of studies indicate people with other inflammatory conditions like heart disease, arthritis or diabetes have a higher risk for gum disease. Some researchers have even suggested that bacteria associated with gum disease pass into the blood stream and threaten other parts of the body — an added incentive to seek treatment and stop the disease’s advancement.
If you fall into any of these risk categories, it’s even more urgent that you practice effective daily hygiene with regular office checkups. Additionally, if you begin to notice bleeding gums, tenderness and swelling, or loose teeth, contact us as soon as possible for an evaluation.
If you would like more information on the diagnosis and treatment of gum disease, 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 “Assessing Risk for Gum Disease.”