Posts for: March, 2016
For decades, dental x-rays have helped us accurately diagnose and treat a wide array of dental diseases and conditions. But even with recent advances in digital imaging, the traditional x-ray does have one drawback: its two-dimensional view doesn’t always provide the “big picture” that a three-dimensional viewpoint can provide.
But a new type of x-ray technology can do just that: known as cone beam computed tomography (CBCT), these machines record hundreds of digital images as a cone-shaped beam of x-ray energy is projected through a device that rotates around a person’s head. A computer then assembles the images into a single three-dimensional image that can be manipulated on screen to view from various angles. Not only does this provide greater context and detail, it does so with no more radiation exposure than a standard 20-film digital full-mouth x-ray series.
While CBCT hasn’t replaced the traditional x-ray, it’s making its mark in a number of specialized areas of dentistry. The following are just a few of the ways CBCT is improving both accuracy and treatment outcomes.
Orthodontics. CBCT can provide a much more detailed view of the entire jaw; this can help us determine the best locations for realigning teeth safely and effectively.
Dental Implants. With a CBCT scan we can precisely locate nerve canals, sinuses and adjacent teeth before implant surgery to locate the best position for the implant.
TMD Treatment. To help develop the best treatment approach for alleviating the pain and dysfunction of temporo-mandibular joint disease (TMD), a CBCT scan can provide us detailed information on how the disease is affecting a patient’s joints, teeth, sinuses and airway.
Impactions. An impacted tooth can exert damaging pressure against the roots of neighboring teeth. A CBCT scan allows us to observe the impacted tooth from various vantage points to determine the best treatment approach for neighboring teeth, nerve canals and sinuses.
If you would like more information on CBCT technology, 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 “Getting the Full Picture With Cone Beam Dental Scans.”
Magician Michael Grandinetti mystifies and astonishes audiences with his sleight of hand and mastery of illusion. But when he initially steps onto the stage, it’s his smile that grabs the attention. “The first thing… that an audience notices is your smile; it’s what really connects you as a person to them,” Michael told an interviewer.
He attributes his audience-pleasing smile to several years of orthodontic treatment as a teenager to straighten misaligned teeth, plus a lifetime of good oral care. “I’m so thankful that I did it,” he said about wearing orthodontic braces. “It was so beneficial. And… looking at the path I’ve chosen, it was life-changing.”
Orthodontics — the dental subspecialty focused on treating malocclusions (literally “bad bites”) — can indeed make life-changing improvements. Properly positioned teeth are integral to the aesthetics of any smile, and a smile that’s pleasing to look at boosts confidence and self-esteem and makes a terrific first impression. Studies have even linked having an attractive smile with greater professional success.
There can also be functional benefits such as improved biting/chewing and speech, and reduced strain on jaw muscles and joints. Additionally, well-aligned teeth are easier to clean and less likely to trap food particles that can lead to decay.
The Science Behind the Magic
There are more options than ever for correcting bites, but all capitalize on the fact that teeth are suspended in individual jawbone sockets by elastic periodontal ligaments that enable them to move. Orthodontic appliances (commonly called braces or clear aligners) place light, controlled forces on teeth in a calculated fashion to move them into their new desired alignment.
The “gold standard” in orthodontic treatment remains the orthodontic band for posterior (back) teeth and the bonded bracket for front teeth. Thin, flexible wires threaded through the brackets create the light forces needed for repositioning. Traditionally the brackets have been made of metal, but for those concerned about the aesthetics, they can also be made out of a clear material. Lingual braces, which are bonded to the back of teeth instead of the front, are another less visible option. The most discrete appliance is the removable clear aligner, which consists of a progression of custom-made clear trays that reposition teeth incrementally.
How’s that for a disappearing act?!
If you would like more information about orthodontic treatment please contact us or schedule an appointment for a consultation. You can also learn more about the subject by reading the Dear Doctor magazine article “The Magic of Orthodontics.”
Teeth grinding and other biting habits are more than a nuisance — they can generate twenty to thirty times the forces of normal biting. Over the long term, this can cause significant damage to teeth and supporting gums and bone.
This particular kind of damage is known as occlusal trauma (meaning injury from the bite). In its primary form, the habit itself over time can injure and inflame the jaw joints leading to soreness, swelling and dysfunction. The teeth themselves can wear down at a much faster rate than what normally occurs with aging. And although less common but even more serious, the periodontal ligaments holding teeth in place to the bone can stretch and weaken, causing the teeth to become loose and increasing the potential for tooth loss.
There are a number of techniques and approaches for treating excessive biting habits, but they all have a common aim — to reduce the amount of force generated by the habit and the associated problems that result. A custom occlusal guard, often worn while sleeping, helps lessen the force by keeping the teeth from making solid contact with each other. Tissue soreness and swelling can be relieved with anti-inflammatory drugs like aspirin or ibuprofen, muscle relaxants or physical therapy. In cases where stress is a main driver, behavioral therapy and counseling may also be helpful.
Biting forces are also an issue for patients with periodontal (gum) disease. In this case even biting forces within normal ranges can cause damage because the diseased gums and bone have already been weakened. If gum disease is a factor, the first priority is to treat the disease by removing built up plaque. Plaque is the thin film of bacteria and food remnant that’s both the cause and continuing growth of the infection, as well as tartar (calculus) from all tooth and gum surfaces.
A thorough dental exam will reveal whether a tooth grinding habit is playing a role in your teeth and gum problems or if it’s magnifying the damage of gum disease. In either case, there are appropriate steps to stop the damage before it leads to tooth loss.
If you would like more information on teeth grinding or other biting habits, 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 “Loose Teeth.”