Posts for: March, 2020
After months of treatment we’ve removed your braces and your new smile emerges. Upon closer view, however, you notice a number of chalky white spots on your teeth.
These pale areas are white spot lesions (WSLs), the result of mineral breakdown from the long-term contact of acid with the enamel surface. The underlying cause is built-up bacterial plaque due to inadequate oral hygiene, and as such WSLs are the beginning stages of tooth decay.
While anyone can develop WSLs, brace wearers are highly susceptible because of the extra care required to clean around orthodontic hardware. Poor dietary habits such as frequent snacking on sugary or acidic foods and beverages also increase the risk of WSLs.
To reduce the risk of developing this condition, brace wearers must give extra attention and effort to daily oral hygiene, including brushing and flossing. The extra effort required in brushing can be aided by specialized toothbrushes designed to clean around brackets and wires, along with prescription-level fluoride toothpastes for added enamel strength. Floss threaders or a water flosser, a device that uses pulsating water under high pressure, may help you maneuver around hardware to remove plaque between teeth. It's also important to maintain a healthy mouth environment by limiting intake of sugary or acidic snacks and beverages, avoiding tobacco or excessive alcohol or caffeine, and drinking plenty of water to keep your mouth from drying out.
If you’ve already developed lesions, it’s important to stop the decay process before it causes more damage. One way is to assist your body’s natural mechanism for re-mineralizing tooth enamel with fluoride pastes or gels or re-mineralizing agents, or undergoing micro-abrasion to repair a tooth’s surface.
To improve a tooth’s appearance a procedure known as “caries infiltration” involves injecting a liquid tooth-colored resin into the lesion, which is then hardened with a curing light. The spot becomes less noticeable and appears more like normal enamel. For extensive defects, conventional bonding with composite resins or porcelain veneers can be used to cosmetically cover the tooth.
Getting ahead of the problem with effective oral hygiene and good dietary and lifestyle practices will keep WSLs at bay while you undergo orthodontic treatment. If they do develop, however, there are ways to minimize their effect and restore the look of your teeth.
If you or a family member has problems with teeth alignment or your bite, you may be considering braces. This tried and true method can straighten out most smiles — but there's more to braces than you may realize.
For one thing, orthodontic treatment wouldn't work if it weren't for the natural mechanism for tooth movement that already exists in the mouth. It may seem your teeth are rigidly set in the jawbone but that's not how they maintain their attachment: that's the job of an elastic connective tissue known as the periodontal ligament that lies between the tooth and the bone. The ligament has tiny fibers that attach to the tooth on one side and to the bone on the other to actually hold the teeth in place, much like a hammock secured between two posts.
The ligament attachment also allows the teeth to move incrementally in response to environmental factors or the aging process. We harness this natural movement ability with braces to move teeth to a more desirable position. We first attach small brackets to the front crowns of the teeth (the visible portion) and then string arch wires through them. We then attach the wires to anchor points where we can adjust the amount of tension they're exerting through the brackets against the teeth. By gradually increasing that tension, the teeth respond as they would when any force is applied against them and begin to move.
By precisely controlling that movement we can transform a patient's smile. But we believe the advantages are more than cosmetic: the teeth will function better and will be easier to care for and keep clean. These benefits, though, have to be balanced with heightened risks for root resorption (something that occurs only about 10% of the time) in which the ends of the roots can shrink, or loss of mineral content in teeth enamel where the hardware makes it more difficult to remove bacterial plaque. These risks can be reduced by closely monitoring dental health during the entire treatment process and through stepped up efforts in daily oral hygiene.
The starting point for deciding on an orthodontic treatment is a thorough dental examination with x-rays or CT scan imaging. Once we have a complete picture of your misalignment problems and any other extenuating circumstances, we can recommend a treatment plan just for you.
If you would like more information on orthodontic 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 “Moving Teeth with Orthodontics.”
Most dental procedures today only require local anesthesia to numb just the affected area. It's a safer approach than general anesthesia: the unconscious state created by putting someone "to sleep" can lead to some unpleasant complications.
But patient comfort involves more than preventing physical pain during a procedure. There's also the emotional factor—many people experience nervousness, anxiety or fear during dental visits. It's especially problematic for an estimated 15% of the population whose dental visit anxiety is so great they often try to avoid dental care altogether.
One option is to use general anesthesia for patients with acute anxiety rather than local anesthesia. This removes them consciously from their anxiety, but they must then be monitored closely for complications.
But there's a safer way to relax patients with high anxiety called intravenous or IV sedation. The method delivers a sedative medication directly into a patient's bloodstream through a small needle or catheter inserted into a vein. The sedative places the patient in a relaxed "semi-awake" state, taking the edge off their anxiety while still enabling them to respond to verbal commands.
Coupled with local anesthesia, they won't experience any pain and very little if any discomfort. And many of the sedatives used also have an amnesiac effect so that the patient won't remember the procedures being performed.
IV sedation does require monitoring of vital signs, but the patient won't need help maintaining their breathing or heart function. And although the medication can be adjusted to reduce any lingering after-effects, a patient will still need someone to accompany them to and from their visit.
For lesser anxiety or nervousness, dentists sometimes prescribe an oral sedative to take just before a visit. This can help take the edge off your nerves and help you relax. With either method, though, sedation can help you overcome fear and anxiety and have a more pleasant treatment experience.
If you would like more information on IV sedation, 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 “IV Sedation in Dentistry.”