Posts for: April, 2016
The mark of a great dental restoration is that you can’t see it. It’s there in plain sight, but others observing your new and improved smile can’t tell the difference between the restoration and your natural teeth. Everything looks, well, natural.
That’s the great advantage of dental porcelain. A dental technician with technical skill and artistic flair can form this inorganic, ceramic material into a life-like replica of your tooth, with a shape and color that blends in with the rest of your teeth. And because of its strength properties, porcelain restorations can hold up to the normal chewing and biting forces in your mouth, as long as you use prudence when biting down on hard substances.
Porcelain is also highly adaptable to different kinds of restorations. For natural teeth still viable but no longer attractive, porcelain can be the main ingredient in two very popular and effective restorations, the veneer and the crown. Although the porcelain material is the same for both, their construction and application are quite different.
Veneers are very thin laminated layers of dental porcelain custom-colored and shaped for bonding to the outer visible portion of a tooth. They’re a great solution for relatively decay-free teeth that have minor to moderate defects like chipping, slight misalignment or heavy staining. They often require some permanent removal of tooth enamel to ensure their appearance isn’t too bulky, but causes minimal impact to the tooth.
Crowns, on the other hand, are complete tooth replicas that are bonded in place over an existing tooth like a cap. They’re a good choice for teeth in which the root and inner layers are still viable, but the tooth has been significantly damaged by decay or trauma. They’re also useful as a protective cover for teeth that have undergone root canal treatment. But unlike the minimal impact of veneers, crowns require significant tooth alterations to accommodate them.
In either case, though, the end result is much the same: both crowns and veneers can be fashioned to precisely mimic the shape, color and texture of natural teeth. In skillful hands, these porcelain restorations can transform your smile for the better and no one but you and your dentist will ever need to know.
If you would like more information on porcelain restorations, 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 “Porcelain Crowns & Veneers.”
Most first-time root canal treatments achieve their purpose in saving an internally decayed tooth and extending its life to match those of the patient’s non-decayed teeth. Occasionally, though, a root canal-treated tooth may become re-infected by decay.
There are a number of reasons for this: the permanent crown meant to add further protection against decay may have been delayed, giving bacteria an opening to re-infect the tooth; it’s also possible the original seal for the pulp chamber and root canals after filling wasn’t sufficient to prevent bacterial contamination.
There‘s also another reason that’s very difficult to foresee — the presence of narrow, curved root canals in the tooth that can pose complications during the procedure. Some of these known as accessory or lateral canals branch off the main canals to create a complex network that’s difficult to detect during the initial procedure. If they’re not cleaned out and filled during the procedure any tissue trapped in them can remain infected and ultimately die. If these canals also open into the periodontal membrane at the attachment between the teeth and bone, the infection can spread there and become a periodontal (gum) infection that can trigger future tooth loss.
Fortunately, a reoccurrence of infection isn’t necessarily a death sentence for a tooth. A second root canal treatment can correct any problems encountered after the first treatment, especially complications from accessory canals. It may, though, require the advanced skills of an endodontist, a dental specialist in root canal problems. Endodontists use microscopic equipment to detect these smaller accessory canals, and then employ specialized techniques to fill and seal them.
If you encounter pain or other signs of re-infection for a tooth previously treated with a root canal procedure, contact us as soon as possible. The sooner we can examine and diagnose the problem, the better your tooth’s chances of survival by undergoing a second root canal treatment.
If you would like more information on tooth preservation through root canal treatment, 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 “Accessory Canals.”
Dental implants are by far the best way to replace missing teeth. But they do more than improve your smile: they can restore your ability to eat, chew and talk properly, especially if the teeth replaced are in the back of your mouth. What’s more, they can improve the entire look of your face by restoring facial height and cheek support lost because of the missing teeth.
There is, however, one obstacle to overcome before receiving dental implants — a lack of sufficient bone at the implant site. Bone loss usually occurs when teeth have been missing for some time. This is because when we chew the forces generated by the teeth stimulate continual bone growth to make up for older bone that has dissolved (resorbed). This stimulation doesn’t occur after teeth are lost, which slows the rate of bone growth. Over time the amount of healthy bone diminishes.
Without enough bone for support, implants can’t be placed properly. Fortunately, some of the bone can be regenerated through techniques that place bone grafting material at the site to stimulate and serve as a scaffold for new bone.Â The new bone will eventually replace the graft.
For missing upper back teeth with bone loss, we can take advantage of facial anatomy to grow the bone needed for implants. This area of the face is where the maxillary sinuses, air spaces lined with a tissue membrane, are located on either side just above the upper jaw. After determining their exact size and location through detailed x-ray imaging, we can surgically access the area inside the mouth just above the missing teeth.
The sinus cavity is an area where bone growth can occur by placing a bone graft between the floor of the sinus and the sinus membrane. Sometimes bone growth enhancers are used to stimulate and speed up regeneration. The procedure can usually be performed with local anesthesia (much like a routine tooth filling), with only mild discomfort afterward for a few days managed by an anti-inflammatory drug like ibuprofen and a decongestant for sinus swelling.
After six to seven months, we re-evaluate the area to see if sufficient bone has returned for implant surgery. If so, you will be well on your way to achieving a new look and better function through dental implants.
If you would like more information on building new bone through sinus surgery, 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 “Sinus Surgery.”